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https://issues.apache.org/jira/browse/BEAM-6876?focusedWorklogId=218227&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-218227
]
ASF GitHub Bot logged work on BEAM-6876:
----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Mar/19 19:47
Start Date: 25/Mar/19 19:47
Worklog Time Spent: 10m
Work Description: angoenka commented on pull request #8118: [BEAM-6876]
Cleanup user state in portable Flink Runner
URL: https://github.com/apache/beam/pull/8118#discussion_r268817794
##########
File path:
runners/flink/src/main/java/org/apache/beam/runners/flink/translation/wrappers/streaming/ExecutableStageDoFnOperator.java
##########
@@ -713,6 +705,86 @@ private void emitResults() {
}
}
+ private DoFnRunner<InputT, OutputT> ensureStateCleanup(
+ SdkHarnessDoFnRunner<InputT, OutputT> sdkHarnessRunner) {
+ if (keyCoder == null) {
+ // There won't be any state to clean up
+ // (stateful functions have to be keyed)
+ return sdkHarnessRunner;
+ }
+ // Takes care of state cleanup via StatefulDoFnRunner
+ Coder windowCoder = windowingStrategy.getWindowFn().windowCoder();
+ StatefulDoFnRunner.CleanupTimer<InputT> cleanupTimer =
+ new StatefulDoFnRunner.CleanupTimer<InputT>() {
+
+ private static final String GC_TIMER_ID = "__user-state-cleanup__";
+
+ @Override
+ public Instant currentInputWatermarkTime() {
+ return timerInternals.currentInputWatermarkTime();
+ }
+
+ @Override
+ public void setForWindow(InputT input, BoundedWindow window) {
+ Preconditions.checkNotNull(input, "Null input passed to
CleanupTimer");
+ // make sure this fires after any window.maxTimestamp() timers
+ Instant gcTime = LateDataUtils.garbageCollectionTime(window,
windowingStrategy).plus(1);
+ ByteBuffer key;
+ try {
+ key =
+ ByteBuffer.wrap(
+ CoderUtils.encodeToByteArray((Coder) keyCoder, ((KV)
input).getKey()));
Review comment:
Do we need to handle key collision in different windows?
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Issue Time Tracking
-------------------
Worklog Id: (was: 218227)
Time Spent: 40m (was: 0.5h)
> User state cleanup in portable Flink runner
> -------------------------------------------
>
> Key: BEAM-6876
> URL: https://issues.apache.org/jira/browse/BEAM-6876
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Affects Versions: 2.11.0
> Reporter: Thomas Weise
> Assignee: Maximilian Michels
> Priority: Major
> Labels: portability-flink
> Time Spent: 40m
> Remaining Estimate: 0h
>
> State is currently not being cleaned up by the runner.
> [https://lists.apache.org/thread.html/86f0809fbfa3da873051287b9ff249d6dd5a896b45409db1e484cf38@%3Cdev.beam.apache.org%3E]
>
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