From 3a4363d0bba006c6a278c12a3264b8976b8d4485 Mon Sep 17 00:00:00 2001
From: mjkwiatkowski <mati.rewa@gmail.com>
Date: Tue, 16 Jun 2026 12:21:53 +0200
Subject: fix: fixing bugs that arise from different compute monitors

---
 opendc-common/build.gradle.kts                     |  2 +-
 .../experiments/base/runner/ScenarioRunner.kt      | 22 ++++++++--------------
 shell_scripts/systemd/redis.sh                     |  4 ++++
 3 files changed, 13 insertions(+), 15 deletions(-)
 create mode 100755 shell_scripts/systemd/redis.sh

diff --git a/opendc-common/build.gradle.kts b/opendc-common/build.gradle.kts
index 0fd56bb5..9bd209d4 100644
--- a/opendc-common/build.gradle.kts
+++ b/opendc-common/build.gradle.kts
@@ -57,7 +57,7 @@ dependencies {
 
     // Source: https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java
     // @Mateusz crucial this is an _api_ and not _implementation_
-    api("com.google.protobuf:protobuf-java:4.33.5")
+    api("com.google.protobuf:protobuf-java:4.35.0")
 
     // Source: https://mvnrepository.com/artifact/io.confluent/kafka-protobuf-serializer
     implementation("io.confluent:kafka-protobuf-serializer:8.1.1")
diff --git a/opendc-experiments/opendc-experiments-base/src/main/kotlin/org/opendc/experiments/base/runner/ScenarioRunner.kt b/opendc-experiments/opendc-experiments-base/src/main/kotlin/org/opendc/experiments/base/runner/ScenarioRunner.kt
index b07a50ae..846bde5a 100644
--- a/opendc-experiments/opendc-experiments-base/src/main/kotlin/org/opendc/experiments/base/runner/ScenarioRunner.kt
+++ b/opendc-experiments/opendc-experiments-base/src/main/kotlin/org/opendc/experiments/base/runner/ScenarioRunner.kt
@@ -30,6 +30,7 @@ import org.opendc.compute.simulator.provisioner.setupComputeService
 import org.opendc.compute.simulator.provisioner.setupHosts
 import org.opendc.compute.simulator.scheduler.ComputeScheduler
 import org.opendc.compute.simulator.service.ComputeService
+import org.opendc.compute.simulator.telemetry.KafkaComputeMonitor
 import org.opendc.compute.simulator.telemetry.parquet.ComputeExportConfig
 import org.opendc.compute.simulator.telemetry.parquet.ParquetComputeMonitor
 import org.opendc.compute.simulator.telemetry.parquet.withGpuColumns
@@ -135,11 +136,7 @@ public fun runScenario(
                 provisioner,
                 serviceDomain,
                 scenario,
-                seed,
                 startTime,
-                scenario.id,
-                computeExportConfig =
-                    scenario.exportModelSpec.computeExportConfig.withGpuColumns(gpuCount),
             )
 
             val service = provisioner.registry.resolve(serviceDomain, ComputeService::class.java)!!
@@ -192,21 +189,18 @@ public fun addExportModel(
     provisioner: Provisioner,
     serviceDomain: String,
     scenario: Scenario,
-    seed: Long,
     startTime: Duration,
-    index: Int,
-    computeExportConfig: ComputeExportConfig = scenario.exportModelSpec.computeExportConfig,
 ) {
+
+    /*
+    * Here is the entry point to KafkaComputeMonitor().
+    * With this setting, the simulator no longer writes to parquet files.
+    * To get back the original code, refer to https://github.com/atlarge-research/opendc
+    * */
     provisioner.runStep(
         registerComputeMonitor(
             serviceDomain,
-            ParquetComputeMonitor(
-                File("${scenario.outputFolder}/raw-output/$index"),
-                "seed=$seed",
-                bufferSize = 4096,
-                scenario.exportModelSpec.filesToExportDict,
-                computeExportConfig = computeExportConfig,
-            ),
+            KafkaComputeMonitor(),
             Duration.ofSeconds(scenario.exportModelSpec.exportInterval),
             startTime,
             scenario.exportModelSpec.filesToExportDict,
diff --git a/shell_scripts/systemd/redis.sh b/shell_scripts/systemd/redis.sh
new file mode 100755
index 00000000..dbebb41d
--- /dev/null
+++ b/shell_scripts/systemd/redis.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+doas systemctl enable redis.service
+doas systemctl start redis.service
+doas systemctl status redis.service
-- 
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