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* Revamped the trace system. All TraceFormat files are now in the api module. This fixes some problems with not being able to use types of traces
* applied spotless
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* Updated all package versions including kotlin. Updated all web-server tests to run.
* Changed the java version of the tests. OpenDC now only supports java 19.
* small update
* test update
* new update
* updated docker version to 19
* updated docker version to 19
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This change updates the build configuration to use Spotless for code
formating of both Kotlin and Java.
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This change updates the repository to remove the use of wildcard imports
everywhere. Wildcard imports are not allowed by default by Ktlint as
well as Google's Java style guide.
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This change adds a re-usable test suite for the interface of the OpenDC
trace API, so implementors can verify whether they match the
specification of the interfaces.
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This change updates the trace API by introducing a limited type system
for the table columns. Previously, the table columns could have any
possible type representable by the JVM. With this change, we limit the
available types to a small type system.
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This change adds support for projecting certain columns of a table. This
enables faster reading for tables with high number of columns.
Currently, we support projection in the Parquet-based workload formats.
Other formats are text-based and will probably not benefit much from
projection.
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This change moves the trace conventions (such as table and column names)
in a separate conv package, so that it is separated from the main API.
This also allows for a potential move into a separate module in the
future.
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This change adds support for converting the Azure VM traces into the
OpenDC trace format.
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This change updates the Azure VM trace format implementation to directly
support loading a trace in GZIP format in order to prevent users having
to decompress the trace files so they can be opened by OpenDC.
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This change simplifies the TraceFormat SPI interface by reducing the
number of interfaces that implementors need to implement to only
TraceFormat.
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This change unifies columns of different tables used by trace formats.
This concretely means that instead of having columns specific per table
(e.g., RESOURCE_ID and RESOURCE_STATE_ID), with this changes these
columns are shared between the tables with a single definition
(RESOURCE_ID).
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This change optimizes the OpenDC VM trace format by removing
unnecessary columns as well as optimizing the writer settings.
The new implementation still supports reading the old trace format in
case users run OpenDC with older workload traces.
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This change adds support in the trace library for the Azure VM trace
format.
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