diff options
Diffstat (limited to 'simulator/opendc-compute/opendc-compute-service/src/main')
26 files changed, 0 insertions, 1915 deletions
diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/ComputeService.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/ComputeService.kt deleted file mode 100644 index 1873eb99..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/ComputeService.kt +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service - -import io.opentelemetry.api.metrics.Meter -import org.opendc.compute.api.ComputeClient -import org.opendc.compute.service.driver.Host -import org.opendc.compute.service.internal.ComputeServiceImpl -import org.opendc.compute.service.scheduler.ComputeScheduler -import java.time.Clock -import kotlin.coroutines.CoroutineContext - -/** - * The [ComputeService] hosts the API implementation of the OpenDC Compute service. - */ -public interface ComputeService : AutoCloseable { - /** - * The hosts that are used by the compute service. - */ - public val hosts: Set<Host> - - /** - * The number of hosts available in the system. - */ - public val hostCount: Int - - /** - * Create a new [ComputeClient] to control the compute service. - */ - public fun newClient(): ComputeClient - - /** - * Add a [host] to the scheduling pool of the compute service. - */ - public fun addHost(host: Host) - - /** - * Remove a [host] from the scheduling pool of the compute service. - */ - public fun removeHost(host: Host) - - /** - * Terminate the lifecycle of the compute service, stopping all running instances. - */ - public override fun close() - - public companion object { - /** - * Construct a new [ComputeService] implementation. - * - * @param context The [CoroutineContext] to use in the service. - * @param clock The clock instance to use. - * @param scheduler The scheduler implementation to use. - */ - public operator fun invoke( - context: CoroutineContext, - clock: Clock, - meter: Meter, - scheduler: ComputeScheduler, - schedulingQuantum: Long = 300000, - ): ComputeService { - return ComputeServiceImpl(context, clock, meter, scheduler, schedulingQuantum) - } - } -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/Host.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/Host.kt deleted file mode 100644 index bed15dfd..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/Host.kt +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.driver - -import org.opendc.compute.api.Server -import java.util.* - -/** - * Base interface for representing compute resources that host virtualized [Server] instances. - */ -public interface Host { - /** - * A unique identifier representing the host. - */ - public val uid: UUID - - /** - * The name of this host. - */ - public val name: String - - /** - * The machine model of the host. - */ - public val model: HostModel - - /** - * The state of the host. - */ - public val state: HostState - - /** - * Meta-data associated with the host. - */ - public val meta: Map<String, Any> - - /** - * Determine whether the specified [instance][server] can still fit on this host. - */ - public fun canFit(server: Server): Boolean - - /** - * Register the specified [instance][server] on the host. - * - * Once the method returns, the instance should be running if [start] is true or else the instance should be - * stopped. - */ - public suspend fun spawn(server: Server, start: Boolean = true) - - /** - * Determine whether the specified [instance][server] exists on the host. - */ - public operator fun contains(server: Server): Boolean - - /** - * Start the server [instance][server] if it is currently not running on this host. - * - * @throws IllegalArgumentException if the server is not present on the host. - */ - public suspend fun start(server: Server) - - /** - * Stop the server [instance][server] if it is currently running on this host. - * - * @throws IllegalArgumentException if the server is not present on the host. - */ - public suspend fun stop(server: Server) - - /** - * Delete the specified [instance][server] on this host and cleanup all resources associated with it. - */ - public suspend fun delete(server: Server) - - /** - * Add a [HostListener] to this host. - */ - public fun addListener(listener: HostListener) - - /** - * Remove a [HostListener] from this host. - */ - public fun removeListener(listener: HostListener) -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostListener.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostListener.kt deleted file mode 100644 index f076cae3..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostListener.kt +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.driver - -import org.opendc.compute.api.Server -import org.opendc.compute.api.ServerState - -/** - * Listener interface for events originating from a [Host]. - */ -public interface HostListener { - /** - * This method is invoked when the state of an [instance][server] on [host] changes. - */ - public fun onStateChanged(host: Host, server: Server, newState: ServerState) {} - - /** - * This method is invoked when the state of a [Host] has changed. - */ - public fun onStateChanged(host: Host, newState: HostState) {} -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostModel.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostModel.kt deleted file mode 100644 index 5632a55e..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostModel.kt +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.driver - -/** - * Describes the static machine properties of the host. - * - * @property vcpuCount The number of logical processing cores available for this host. - * @property memorySize The amount of memory available for this host in MB. - */ -public data class HostModel(public val cpuCount: Int, public val memorySize: Long) diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostState.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostState.kt deleted file mode 100644 index 6d85ee2d..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/driver/HostState.kt +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.driver - -/** - * The state of a host. - */ -public enum class HostState { - /** - * The host is up. - */ - UP, - - /** - * The host is down. - */ - DOWN -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientFlavor.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientFlavor.kt deleted file mode 100644 index 4a8d3046..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientFlavor.kt +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import org.opendc.compute.api.Flavor -import java.util.UUID - -/** - * A [Flavor] implementation that is passed to clients but delegates its implementation to another class. - */ -internal class ClientFlavor(private val delegate: Flavor) : Flavor { - override val uid: UUID = delegate.uid - - override var name: String = delegate.name - private set - - override var cpuCount: Int = delegate.cpuCount - private set - - override var memorySize: Long = delegate.memorySize - private set - - override var labels: Map<String, String> = delegate.labels.toMap() - private set - - override var meta: Map<String, Any> = delegate.meta.toMap() - private set - - override suspend fun delete() { - delegate.delete() - } - - override suspend fun refresh() { - delegate.refresh() - - name = delegate.name - cpuCount = delegate.cpuCount - memorySize = delegate.memorySize - labels = delegate.labels - meta = delegate.meta - } - - override fun equals(other: Any?): Boolean = other is Flavor && other.uid == uid - - override fun hashCode(): Int = uid.hashCode() - - override fun toString(): String = "Flavor[uid=$uid,name=$name]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientImage.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientImage.kt deleted file mode 100644 index e0b5c171..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientImage.kt +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import org.opendc.compute.api.Image -import java.util.* - -/** - * An [Image] implementation that is passed to clients but delegates its implementation to another class. - */ -internal class ClientImage(private val delegate: Image) : Image { - override val uid: UUID = delegate.uid - - override var name: String = delegate.name - private set - - override var labels: Map<String, String> = delegate.labels.toMap() - private set - - override var meta: Map<String, Any> = delegate.meta.toMap() - private set - - override suspend fun delete() { - delegate.delete() - refresh() - } - - override suspend fun refresh() { - delegate.refresh() - - name = delegate.name - labels = delegate.labels - meta = delegate.meta - } - - override fun equals(other: Any?): Boolean = other is Image && other.uid == uid - - override fun hashCode(): Int = uid.hashCode() - - override fun toString(): String = "Image[uid=$uid,name=$name]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientServer.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientServer.kt deleted file mode 100644 index f2929bf3..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ClientServer.kt +++ /dev/null @@ -1,113 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import org.opendc.compute.api.Flavor -import org.opendc.compute.api.Image -import org.opendc.compute.api.Server -import org.opendc.compute.api.ServerState -import org.opendc.compute.api.ServerWatcher -import java.util.* - -/** - * A [Server] implementation that is passed to clients but delegates its implementation to another class. - */ -internal class ClientServer(private val delegate: Server) : Server, ServerWatcher { - private val watchers = mutableListOf<ServerWatcher>() - - override val uid: UUID = delegate.uid - - override var name: String = delegate.name - private set - - override var flavor: Flavor = delegate.flavor - private set - - override var image: Image = delegate.image - private set - - override var labels: Map<String, String> = delegate.labels.toMap() - private set - - override var meta: Map<String, Any> = delegate.meta.toMap() - private set - - override var state: ServerState = delegate.state - private set - - override suspend fun start() { - delegate.start() - refresh() - } - - override suspend fun stop() { - delegate.stop() - refresh() - } - - override suspend fun delete() { - delegate.delete() - refresh() - } - - override fun watch(watcher: ServerWatcher) { - if (watchers.isEmpty()) { - delegate.watch(this) - } - - watchers += watcher - } - - override fun unwatch(watcher: ServerWatcher) { - watchers += watcher - - if (watchers.isEmpty()) { - delegate.unwatch(this) - } - } - - override suspend fun refresh() { - delegate.refresh() - - name = delegate.name - flavor = delegate.flavor - image = delegate.image - labels = delegate.labels - meta = delegate.meta - state = delegate.state - } - - override fun onStateChanged(server: Server, newState: ServerState) { - val watchers = watchers - - for (watcher in watchers) { - watcher.onStateChanged(this, newState) - } - } - - override fun equals(other: Any?): Boolean = other is Server && other.uid == uid - - override fun hashCode(): Int = uid.hashCode() - - override fun toString(): String = "Server[uid=$uid,name=$name,state=$state]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ComputeServiceImpl.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ComputeServiceImpl.kt deleted file mode 100644 index 8af5f86e..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/ComputeServiceImpl.kt +++ /dev/null @@ -1,500 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import io.opentelemetry.api.metrics.Meter -import kotlinx.coroutines.* -import mu.KotlinLogging -import org.opendc.compute.api.* -import org.opendc.compute.service.ComputeService -import org.opendc.compute.service.driver.Host -import org.opendc.compute.service.driver.HostListener -import org.opendc.compute.service.driver.HostState -import org.opendc.compute.service.scheduler.ComputeScheduler -import org.opendc.utils.TimerScheduler -import java.time.Clock -import java.util.* -import kotlin.coroutines.CoroutineContext -import kotlin.math.max - -/** - * Internal implementation of the OpenDC Compute service. - * - * @param context The [CoroutineContext] to use. - * @param clock The clock instance to keep track of time. - */ -internal class ComputeServiceImpl( - private val context: CoroutineContext, - private val clock: Clock, - private val meter: Meter, - private val scheduler: ComputeScheduler, - private val schedulingQuantum: Long -) : ComputeService, HostListener { - /** - * The [CoroutineScope] of the service bounded by the lifecycle of the service. - */ - private val scope = CoroutineScope(context + Job()) - - /** - * The logger instance of this server. - */ - private val logger = KotlinLogging.logger {} - - /** - * The [Random] instance used to generate unique identifiers for the objects. - */ - private val random = Random(0) - - /** - * A mapping from host to host view. - */ - private val hostToView = mutableMapOf<Host, HostView>() - - /** - * The available hypervisors. - */ - private val availableHosts: MutableSet<HostView> = mutableSetOf() - - /** - * The servers that should be launched by the service. - */ - private val queue: Deque<SchedulingRequest> = ArrayDeque() - - /** - * The active servers in the system. - */ - private val activeServers: MutableMap<Server, Host> = mutableMapOf() - - /** - * The registered flavors for this compute service. - */ - internal val flavors = mutableMapOf<UUID, InternalFlavor>() - - /** - * The registered images for this compute service. - */ - internal val images = mutableMapOf<UUID, InternalImage>() - - /** - * The registered servers for this compute service. - */ - private val servers = mutableMapOf<UUID, InternalServer>() - - private var maxCores = 0 - private var maxMemory = 0L - - /** - * The number of servers that have been submitted to the service for provisioning. - */ - private val _submittedServers = meter.longCounterBuilder("servers.submitted") - .setDescription("Number of start requests") - .setUnit("1") - .build() - - /** - * The number of servers that failed to be scheduled. - */ - private val _unscheduledServers = meter.longCounterBuilder("servers.unscheduled") - .setDescription("Number of unscheduled servers") - .setUnit("1") - .build() - - /** - * The number of servers that are waiting to be provisioned. - */ - private val _waitingServers = meter.longUpDownCounterBuilder("servers.waiting") - .setDescription("Number of servers waiting to be provisioned") - .setUnit("1") - .build() - - /** - * The number of servers that are waiting to be provisioned. - */ - private val _runningServers = meter.longUpDownCounterBuilder("servers.active") - .setDescription("Number of servers currently running") - .setUnit("1") - .build() - - /** - * The number of servers that have finished running. - */ - private val _finishedServers = meter.longCounterBuilder("servers.finished") - .setDescription("Number of servers that finished running") - .setUnit("1") - .build() - - /** - * The number of hosts registered at the compute service. - */ - private val _hostCount = meter.longUpDownCounterBuilder("hosts.total") - .setDescription("Number of hosts") - .setUnit("1") - .build() - - /** - * The number of available hosts registered at the compute service. - */ - private val _availableHostCount = meter.longUpDownCounterBuilder("hosts.available") - .setDescription("Number of available hosts") - .setUnit("1") - .build() - - /** - * The [TimerScheduler] to use for scheduling the scheduler cycles. - */ - private var timerScheduler: TimerScheduler<Unit> = TimerScheduler(scope.coroutineContext, clock) - - override val hosts: Set<Host> - get() = hostToView.keys - - override val hostCount: Int - get() = hostToView.size - - override fun newClient(): ComputeClient { - check(scope.isActive) { "Service is already closed" } - return object : ComputeClient { - private var isClosed: Boolean = false - - override suspend fun queryFlavors(): List<Flavor> { - check(!isClosed) { "Client is already closed" } - - return flavors.values.map { ClientFlavor(it) } - } - - override suspend fun findFlavor(id: UUID): Flavor? { - check(!isClosed) { "Client is already closed" } - - return flavors[id]?.let { ClientFlavor(it) } - } - - override suspend fun newFlavor( - name: String, - cpuCount: Int, - memorySize: Long, - labels: Map<String, String>, - meta: Map<String, Any> - ): Flavor { - check(!isClosed) { "Client is already closed" } - - val uid = UUID(clock.millis(), random.nextLong()) - val flavor = InternalFlavor( - this@ComputeServiceImpl, - uid, - name, - cpuCount, - memorySize, - labels, - meta - ) - - flavors[uid] = flavor - - return ClientFlavor(flavor) - } - - override suspend fun queryImages(): List<Image> { - check(!isClosed) { "Client is already closed" } - - return images.values.map { ClientImage(it) } - } - - override suspend fun findImage(id: UUID): Image? { - check(!isClosed) { "Client is already closed" } - - return images[id]?.let { ClientImage(it) } - } - - override suspend fun newImage(name: String, labels: Map<String, String>, meta: Map<String, Any>): Image { - check(!isClosed) { "Client is already closed" } - - val uid = UUID(clock.millis(), random.nextLong()) - val image = InternalImage(this@ComputeServiceImpl, uid, name, labels, meta) - - images[uid] = image - - return ClientImage(image) - } - - override suspend fun newServer( - name: String, - image: Image, - flavor: Flavor, - labels: Map<String, String>, - meta: Map<String, Any>, - start: Boolean - ): Server { - check(!isClosed) { "Client is closed" } - - val uid = UUID(clock.millis(), random.nextLong()) - val server = InternalServer( - this@ComputeServiceImpl, - uid, - name, - requireNotNull(flavors[flavor.uid]) { "Unknown flavor" }, - requireNotNull(images[image.uid]) { "Unknown image" }, - labels.toMutableMap(), - meta.toMutableMap() - ) - - servers[uid] = server - - if (start) { - server.start() - } - - return ClientServer(server) - } - - override suspend fun findServer(id: UUID): Server? { - check(!isClosed) { "Client is already closed" } - - return servers[id]?.let { ClientServer(it) } - } - - override suspend fun queryServers(): List<Server> { - check(!isClosed) { "Client is already closed" } - - return servers.values.map { ClientServer(it) } - } - - override fun close() { - isClosed = true - } - - override fun toString(): String = "ComputeClient" - } - } - - override fun addHost(host: Host) { - // Check if host is already known - if (host in hostToView) { - return - } - - val hv = HostView(host) - maxCores = max(maxCores, host.model.cpuCount) - maxMemory = max(maxMemory, host.model.memorySize) - hostToView[host] = hv - - if (host.state == HostState.UP) { - _availableHostCount.add(1) - availableHosts += hv - } - - scheduler.addHost(hv) - _hostCount.add(1) - host.addListener(this) - } - - override fun removeHost(host: Host) { - val view = hostToView.remove(host) - if (view != null) { - if (availableHosts.remove(view)) { - _availableHostCount.add(-1) - } - scheduler.removeHost(view) - host.removeListener(this) - _hostCount.add(-1) - } - } - - override fun close() { - scope.cancel() - } - - internal fun schedule(server: InternalServer): SchedulingRequest { - logger.debug { "Enqueueing server ${server.uid} to be assigned to host." } - - val request = SchedulingRequest(server) - queue.add(request) - _submittedServers.add(1) - _waitingServers.add(1) - requestSchedulingCycle() - return request - } - - internal fun delete(flavor: InternalFlavor) { - flavors.remove(flavor.uid) - } - - internal fun delete(image: InternalImage) { - images.remove(image.uid) - } - - internal fun delete(server: InternalServer) { - servers.remove(server.uid) - } - - /** - * Indicate that a new scheduling cycle is needed due to a change to the service's state. - */ - private fun requestSchedulingCycle() { - // Bail out in case we have already requested a new cycle or the queue is empty. - if (timerScheduler.isTimerActive(Unit) || queue.isEmpty()) { - return - } - - // We assume that the provisioner runs at a fixed slot every time quantum (e.g t=0, t=60, t=120). - // This is important because the slices of the VMs need to be aligned. - // We calculate here the delay until the next scheduling slot. - val delay = schedulingQuantum - (clock.millis() % schedulingQuantum) - - timerScheduler.startSingleTimer(Unit, delay) { - doSchedule() - } - } - - /** - * Run a single scheduling iteration. - */ - private fun doSchedule() { - while (queue.isNotEmpty()) { - val request = queue.peek() - - if (request.isCancelled) { - queue.poll() - _waitingServers.add(-1) - continue - } - - val server = request.server - val hv = scheduler.select(request.server) - if (hv == null || !hv.host.canFit(server)) { - logger.trace { "Server $server selected for scheduling but no capacity available for it at the moment" } - - if (server.flavor.memorySize > maxMemory || server.flavor.cpuCount > maxCores) { - // Remove the incoming image - queue.poll() - _waitingServers.add(-1) - _unscheduledServers.add(1) - - logger.warn("Failed to spawn $server: does not fit [${clock.millis()}]") - - server.state = ServerState.ERROR - continue - } else { - break - } - } - - val host = hv.host - - // Remove request from queue - queue.poll() - _waitingServers.add(-1) - - logger.info { "Assigned server $server to host $host." } - - // Speculatively update the hypervisor view information to prevent other images in the queue from - // deciding on stale values. - hv.instanceCount++ - hv.provisionedCores += server.flavor.cpuCount - hv.availableMemory -= server.flavor.memorySize // XXX Temporary hack - - scope.launch { - try { - server.host = host - host.spawn(server) - activeServers[server] = host - } catch (e: Throwable) { - logger.error("Failed to deploy VM", e) - - hv.instanceCount-- - hv.provisionedCores -= server.flavor.cpuCount - hv.availableMemory += server.flavor.memorySize - } - } - } - } - - /** - * A request to schedule an [InternalServer] onto one of the [Host]s. - */ - internal data class SchedulingRequest(val server: InternalServer) { - /** - * A flag to indicate that the request is cancelled. - */ - var isCancelled: Boolean = false - } - - override fun onStateChanged(host: Host, newState: HostState) { - when (newState) { - HostState.UP -> { - logger.debug { "[${clock.millis()}] Host ${host.uid} state changed: $newState" } - - val hv = hostToView[host] - if (hv != null) { - // Corner case for when the hypervisor already exists - availableHosts += hv - _availableHostCount.add(1) - } - - // Re-schedule on the new machine - requestSchedulingCycle() - } - HostState.DOWN -> { - logger.debug { "[${clock.millis()}] Host ${host.uid} state changed: $newState" } - - val hv = hostToView[host] ?: return - availableHosts -= hv - _availableHostCount.add(-1) - - requestSchedulingCycle() - } - } - } - - override fun onStateChanged(host: Host, server: Server, newState: ServerState) { - require(server is InternalServer) { "Invalid server type passed to service" } - - if (server.host != host) { - // This can happen when a server is rescheduled and started on another machine, while being deleted from - // the old machine. - return - } - - server.state = newState - - if (newState == ServerState.RUNNING) { - _runningServers.add(1) - } else if (newState == ServerState.TERMINATED || newState == ServerState.DELETED) { - logger.info { "[${clock.millis()}] Server ${server.uid} ${server.name} ${server.flavor} finished." } - - activeServers -= server - _runningServers.add(-1) - _finishedServers.add(1) - - val hv = hostToView[host] - if (hv != null) { - hv.provisionedCores -= server.flavor.cpuCount - hv.instanceCount-- - hv.availableMemory += server.flavor.memorySize - } else { - logger.error { "Unknown host $host" } - } - - // Try to reschedule if needed - requestSchedulingCycle() - } - } -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/HostView.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/HostView.kt deleted file mode 100644 index e2f33f11..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/HostView.kt +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Copyright (c) 2020 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import org.opendc.compute.service.ComputeService -import org.opendc.compute.service.driver.Host -import java.util.UUID - -/** - * A view of a [Host] as seen from the [ComputeService] - */ -public class HostView(public val host: Host) { - /** - * The unique identifier of the host. - */ - public val uid: UUID - get() = host.uid - - public var instanceCount: Int = 0 - public var availableMemory: Long = host.model.memorySize - public var provisionedCores: Int = 0 - - override fun toString(): String = "HostView[host=$host]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalFlavor.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalFlavor.kt deleted file mode 100644 index b8fb6279..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalFlavor.kt +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import org.opendc.compute.api.Flavor -import java.util.* - -/** - * Internal stateful representation of a [Flavor]. - */ -internal class InternalFlavor( - private val service: ComputeServiceImpl, - override val uid: UUID, - name: String, - cpuCount: Int, - memorySize: Long, - labels: Map<String, String>, - meta: Map<String, Any> -) : Flavor { - override var name: String = name - private set - - override var cpuCount: Int = cpuCount - private set - - override var memorySize: Long = memorySize - private set - - override val labels: MutableMap<String, String> = labels.toMutableMap() - - override val meta: MutableMap<String, Any> = meta.toMutableMap() - - override suspend fun refresh() { - // No-op: this object is the source-of-truth - } - - override suspend fun delete() { - service.delete(this) - } - - override fun equals(other: Any?): Boolean = other is Flavor && uid == other.uid - - override fun hashCode(): Int = uid.hashCode() - - override fun toString(): String = "Flavor[uid=$uid,name=$name]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalImage.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalImage.kt deleted file mode 100644 index d9ed5896..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalImage.kt +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import org.opendc.compute.api.Image -import java.util.* - -/** - * Internal stateful representation of an [Image]. - */ -internal class InternalImage( - private val service: ComputeServiceImpl, - override val uid: UUID, - override val name: String, - labels: Map<String, String>, - meta: Map<String, Any> -) : Image { - - override val labels: MutableMap<String, String> = labels.toMutableMap() - - override val meta: MutableMap<String, Any> = meta.toMutableMap() - - override suspend fun refresh() { - // No-op: this object is the source-of-truth - } - - override suspend fun delete() { - service.delete(this) - } - - override fun equals(other: Any?): Boolean = other is Image && uid == other.uid - - override fun hashCode(): Int = uid.hashCode() - - override fun toString(): String = "Image[uid=$uid,name=$name]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalServer.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalServer.kt deleted file mode 100644 index d9d0f3fc..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/internal/InternalServer.kt +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.internal - -import mu.KotlinLogging -import org.opendc.compute.api.* -import org.opendc.compute.service.driver.Host -import java.util.UUID - -/** - * Internal implementation of the [Server] interface. - */ -internal class InternalServer( - private val service: ComputeServiceImpl, - override val uid: UUID, - override val name: String, - override val flavor: InternalFlavor, - override val image: InternalImage, - override val labels: MutableMap<String, String>, - override val meta: MutableMap<String, Any> -) : Server { - /** - * The logger instance of this server. - */ - private val logger = KotlinLogging.logger {} - - /** - * The watchers of this server object. - */ - private val watchers = mutableListOf<ServerWatcher>() - - /** - * The [Host] that has been assigned to host the server. - */ - internal var host: Host? = null - - /** - * The current scheduling request. - */ - private var request: ComputeServiceImpl.SchedulingRequest? = null - - override suspend fun start() { - when (state) { - ServerState.RUNNING -> { - logger.debug { "User tried to start server but server is already running" } - return - } - ServerState.PROVISIONING -> { - logger.debug { "User tried to start server but request is already pending: doing nothing" } - return - } - ServerState.DELETED -> { - logger.warn { "User tried to start terminated server" } - throw IllegalStateException("Server is terminated") - } - else -> { - logger.info { "User requested to start server $uid" } - state = ServerState.PROVISIONING - assert(request == null) { "Scheduling request already active" } - request = service.schedule(this) - } - } - } - - override suspend fun stop() { - when (state) { - ServerState.PROVISIONING -> { - cancelProvisioningRequest() - state = ServerState.TERMINATED - } - ServerState.RUNNING, ServerState.ERROR -> { - val host = checkNotNull(host) { "Server not running" } - host.stop(this) - } - ServerState.TERMINATED, ServerState.DELETED -> {} // No work needed - } - } - - override suspend fun delete() { - when (state) { - ServerState.PROVISIONING, ServerState.TERMINATED -> { - cancelProvisioningRequest() - service.delete(this) - state = ServerState.DELETED - } - ServerState.RUNNING, ServerState.ERROR -> { - val host = checkNotNull(host) { "Server not running" } - host.delete(this) - service.delete(this) - state = ServerState.DELETED - } - else -> {} // No work needed - } - } - - override fun watch(watcher: ServerWatcher) { - watchers += watcher - } - - override fun unwatch(watcher: ServerWatcher) { - watchers -= watcher - } - - override suspend fun refresh() { - // No-op: this object is the source-of-truth - } - - override var state: ServerState = ServerState.TERMINATED - set(value) { - if (value != field) { - watchers.forEach { it.onStateChanged(this, value) } - } - - field = value - } - - /** - * Cancel the provisioning request if active. - */ - private fun cancelProvisioningRequest() { - val request = request - if (request != null) { - this.request = null - request.isCancelled = true - } - } - - override fun equals(other: Any?): Boolean = other is Server && uid == other.uid - - override fun hashCode(): Int = uid.hashCode() - - override fun toString(): String = "Server[uid=$uid,state=$state]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/ComputeScheduler.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/ComputeScheduler.kt deleted file mode 100644 index a2ab3a2e..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/ComputeScheduler.kt +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler - -import org.opendc.compute.api.Server -import org.opendc.compute.service.ComputeService -import org.opendc.compute.service.internal.HostView - -/** - * A generic scheduler interface used by the [ComputeService] to select hosts to place [Server]s on. - */ -public interface ComputeScheduler { - /** - * Register the specified [host] to be used for scheduling. - */ - public fun addHost(host: HostView) - - /** - * Remove the specified [host] to be removed from the scheduling pool. - */ - public fun removeHost(host: HostView) - - /** - * Select a host for the specified [server]. - * - * @param server The server to select a host for. - * @return The host to schedule the server on or `null` if no server is available. - */ - public fun select(server: Server): HostView? -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/FilterScheduler.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/FilterScheduler.kt deleted file mode 100644 index 0fd5b2a4..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/FilterScheduler.kt +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView -import org.opendc.compute.service.scheduler.filters.HostFilter -import org.opendc.compute.service.scheduler.weights.HostWeigher - -/** - * A [ComputeScheduler] implementation that uses filtering and weighing passes to select - * the host to schedule a [Server] on. - * - * This implementation is based on the filter scheduler from OpenStack Nova. - * See: https://docs.openstack.org/nova/latest/user/filter-scheduler.html - */ -public class FilterScheduler(private val filters: List<HostFilter>, private val weighers: List<Pair<HostWeigher, Double>>) : ComputeScheduler { - /** - * The pool of hosts available to the scheduler. - */ - private val hosts = mutableListOf<HostView>() - - override fun addHost(host: HostView) { - hosts.add(host) - } - - override fun removeHost(host: HostView) { - hosts.remove(host) - } - - override fun select(server: Server): HostView? { - return hosts.asSequence() - .filter { host -> - for (filter in filters) { - if (!filter.test(host, server)) - return@filter false - } - - true - } - .sortedByDescending { host -> - weighers.sumByDouble { (weigher, factor) -> weigher.getWeight(host, server) * factor } - } - .firstOrNull() - } -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/ReplayScheduler.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/ReplayScheduler.kt deleted file mode 100644 index 284c1f91..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/ReplayScheduler.kt +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Copyright (c) 2020 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler - -import mu.KotlinLogging -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView - -/** - * Policy replaying VM-cluster assignment. - * - * Within each cluster, the active servers on each node determine which node gets - * assigned the VM image. - */ -public class ReplayScheduler(private val vmPlacements: Map<String, String>) : ComputeScheduler { - private val logger = KotlinLogging.logger {} - - /** - * The pool of hosts available to the scheduler. - */ - private val hosts = mutableListOf<HostView>() - - override fun addHost(host: HostView) { - hosts.add(host) - } - - override fun removeHost(host: HostView) { - hosts.remove(host) - } - - override fun select(server: Server): HostView? { - val clusterName = vmPlacements[server.name] - ?: throw IllegalStateException("Could not find placement data in VM placement file for VM ${server.name}") - val machinesInCluster = hosts.filter { it.host.name.contains(clusterName) } - - if (machinesInCluster.isEmpty()) { - logger.info { "Could not find any machines belonging to cluster $clusterName for image ${server.name}, assigning randomly." } - return hosts.maxByOrNull { it.availableMemory } - } - - return machinesInCluster.maxByOrNull { it.availableMemory } - ?: throw IllegalStateException("Cloud not find any machine and could not randomly assign") - } -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/ComputeCapabilitiesFilter.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/ComputeCapabilitiesFilter.kt deleted file mode 100644 index 072440c5..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/ComputeCapabilitiesFilter.kt +++ /dev/null @@ -1,40 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.filters - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView - -/** - * A [HostFilter] that checks whether the capabilities provided by the host satisfies the requirements of the server - * flavor. - */ -public class ComputeCapabilitiesFilter : HostFilter { - override fun test(host: HostView, server: Server): Boolean { - val fitsMemory = host.availableMemory >= server.flavor.memorySize - val fitsCpu = host.host.model.cpuCount >= server.flavor.cpuCount - return fitsMemory && fitsCpu - } - - override fun toString(): String = "ComputeCapabilitiesFilter" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/ComputeFilter.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/ComputeFilter.kt deleted file mode 100644 index fb842415..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/ComputeFilter.kt +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.filters - -import org.opendc.compute.api.Server -import org.opendc.compute.service.driver.HostState -import org.opendc.compute.service.internal.HostView - -/** - * A [HostFilter] that filters on active hosts. - */ -public class ComputeFilter : HostFilter { - override fun test(host: HostView, server: Server): Boolean { - return host.host.state == HostState.UP - } - - override fun toString(): String = "ComputeFilter" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/HostFilter.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/HostFilter.kt deleted file mode 100644 index 9e909ca6..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/HostFilter.kt +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.filters - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView -import org.opendc.compute.service.scheduler.FilterScheduler - -/** - * A filter used by the [FilterScheduler] to filter hosts. - */ -public fun interface HostFilter { - /** - * Test whether the specified [host] should be included in the selection - * for scheduling the specified [server]. - */ - public fun test(host: HostView, server: Server): Boolean -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/InstanceCountFilter.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/InstanceCountFilter.kt deleted file mode 100644 index ed6674b1..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/filters/InstanceCountFilter.kt +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.filters - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView - -/** - * A [HostFilter] that filters hosts based on the number of instances on the host. - * - * @param limit The maximum number of instances on the host. - */ -public class InstanceCountFilter(private val limit: Int) : HostFilter { - override fun test(host: HostView, server: Server): Boolean { - return host.instanceCount < limit - } - - override fun toString(): String = "InstanceCountFilter[limit=$limit]" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/CoreMemoryWeigher.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/CoreMemoryWeigher.kt deleted file mode 100644 index 12e6510e..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/CoreMemoryWeigher.kt +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.weights - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView - -/** - * A [HostWeigher] that weighs the hosts based on the available memory per core on the host. - */ -public class CoreMemoryWeigher : HostWeigher { - override fun getWeight(host: HostView, server: Server): Double { - return host.availableMemory.toDouble() / host.host.model.cpuCount - } - - override fun toString(): String = "CoreMemoryWeigher" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/HostWeigher.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/HostWeigher.kt deleted file mode 100644 index d48ee9e0..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/HostWeigher.kt +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.weights - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView -import org.opendc.compute.service.scheduler.FilterScheduler - -/** - * An interface used by the [FilterScheduler] to weigh the pool of host for a scheduling request. - */ -public fun interface HostWeigher { - /** - * Obtain the weight of the specified [host] when scheduling the specified [server]. - */ - public fun getWeight(host: HostView, server: Server): Double -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/InstanceCountWeigher.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/InstanceCountWeigher.kt deleted file mode 100644 index 2ef733e5..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/InstanceCountWeigher.kt +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.weights - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView - -/** - * A [HostWeigher] that weighs the hosts based on the number of instances on the host. - */ -public class InstanceCountWeigher : HostWeigher { - override fun getWeight(host: HostView, server: Server): Double { - return host.instanceCount.toDouble() - } - - override fun toString(): String = "InstanceCountWeigher" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/MemoryWeigher.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/MemoryWeigher.kt deleted file mode 100644 index 115d8e4d..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/MemoryWeigher.kt +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.weights - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView - -/** - * A [HostWeigher] that weighs the hosts based on the available memory on the host. - */ -public class MemoryWeigher : HostWeigher { - override fun getWeight(host: HostView, server: Server): Double { - return host.availableMemory.toDouble() - } - - override fun toString(): String = "MemoryWeigher" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/ProvisionedCoresWeigher.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/ProvisionedCoresWeigher.kt deleted file mode 100644 index df5bcd6e..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/ProvisionedCoresWeigher.kt +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.weights - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView - -/** - * A [HostWeigher] that weighs the hosts based on the number of provisioned cores on the host. - */ -public class ProvisionedCoresWeigher : HostWeigher { - override fun getWeight(host: HostView, server: Server): Double { - return host.provisionedCores.toDouble() - } - - override fun toString(): String = "ProvisionedCoresWeigher" -} diff --git a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/RandomWeigher.kt b/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/RandomWeigher.kt deleted file mode 100644 index 1615df3a..00000000 --- a/simulator/opendc-compute/opendc-compute-service/src/main/kotlin/org/opendc/compute/service/scheduler/weights/RandomWeigher.kt +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Copyright (c) 2021 AtLarge Research - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -package org.opendc.compute.service.scheduler.weights - -import org.opendc.compute.api.Server -import org.opendc.compute.service.internal.HostView -import java.util.* - -/** - * A [HostWeigher] that assigns random weights to each host every selection. - */ -public class RandomWeigher(private val random: Random) : HostWeigher { - override fun getWeight(host: HostView, server: Server): Double = random.nextDouble() - - override fun toString(): String = "RandomWeigher" -} |