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Changes:

[github] [BEAM-1251] Add a link to Python 3 Conversion Quick Start Guide to the

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[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.executiongraph.ExecutionGraph - assert_that/Group/GroupByKey -> 42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (2/16) (a1747ab3212465aa543a12ac7147d7a9) switched from RUNNING to FINISHED.
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[flink-runner-job-server] INFO org.apache.beam.runners.flink.FlinkRunner - Final accumulator values:
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.
----------------------------------------------------------------------
Ran 26 tests in 75.808s

OK (skipped=8)
:beam-sdks-python:flinkCompatibilityMatrixStreaming (Thread[Task worker for ':' Thread 7,5,main]) completed. Took 1 mins 17.902 secs.

FAILURE: Build failed with an exception.

* Where:
Build file '<https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/ws/src/sdks/python/build.gradle'> line: 351

* What went wrong:
Execution failed for task ':beam-sdks-python:flinkCompatibilityMatrixBatch'.
> Process 'command 'sh'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.10.2/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 11m 30s
59 actionable tasks: 54 executed, 4 from cache, 1 up-to-date

Publishing build scan...
https://gradle.com/s/dz5xgjvlmfufk

Build step 'Invoke Gradle script' changed build result to FAILURE
Build step 'Invoke Gradle script' marked build as failure

Jenkins build is back to normal : beam_PostCommit_Python_VR_Flink #391

[Apache Jenkins Server <je...@builds.apache.org>]

See <https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/391/display/redirect>

Build failed in Jenkins: beam_PostCommit_Python_VR_Flink #390

[Apache Jenkins Server <je...@builds.apache.org>]

See <https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/390/display/redirect?page=changes>

Changes:

[rohde.samuel] Change incompatible message from referencing the output collection to

[ankurgoenka] [BEAM-4176] Enable Post Commit JAVA PVR tests for Flink

[ankurgoenka] [BEAM-4176] Adding start method back to the FlinkJobserverDriver

------------------------------------------
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[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopping all currently running jobs of dispatcher akka://flink/user/dispatcher017f25c6-3ebb-4c6f-a64d-6790cd6a8e50.
[flink-akka.actor.default-dispatcher-3] INFO org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Disconnect job manager b90cf286980cb57df859fdd9336b4c64@akka://flink/user/jobmanager_39 for job 9bda10f2f818e4ad895eecfec1668ed3 from the resource manager.
[flink-akka.actor.default-dispatcher-5] INFO org.apache.flink.runtime.rpc.akka.AkkaRpcActor - The rpc endpoint org.apache.flink.runtime.jobmaster.slotpool.SlotPool has not been started yet. Discarding message org.apache.flink.runtime.rpc.messages.LocalRpcInvocation until processing is started.
[flink-akka.actor.default-dispatcher-3] INFO org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - Closing the SlotManager.
[flink-akka.actor.default-dispatcher-3] INFO org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - Suspending the SlotManager.
[flink-akka.actor.default-dispatcher-3] INFO org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - Unregister TaskManager 57e8982f9c088ee15d5c4a5ed42fe42c from the SlotManager.
[flink-akka.actor.default-dispatcher-5] INFO org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Stopping SlotPool.
[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - JobManager for job 9bda10f2f818e4ad895eecfec1668ed3 with leader id b90cf286980cb57df859fdd9336b4c64 lost leadership.
[flink-akka.actor.default-dispatcher-2] INFO org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Free slot TaskSlot(index:8, state:ALLOCATED, resource profile: ResourceProfile{cpuCores=1.0, heapMemoryInMB=42, directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0}, allocationId: AllocationID{6327c1c8d51b436631b1709d2bff7794}, jobId: 9bda10f2f818e4ad895eecfec1668ed3).
[flink-akka.actor.default-dispatcher-2] INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Stopping TaskExecutor akka://flink/user/taskmanager_38.
[flink-akka.actor.default-dispatcher-2] INFO org.apache.flink.runtime.state.TaskExecutorLocalStateStoresManager - Shutting down TaskExecutorLocalStateStoresManager.
[flink-akka.actor.default-dispatcher-2] INFO org.apache.flink.runtime.io.disk.iomanager.IOManager - I/O manager removed spill file directory /tmp/flink-io-15be7381-6df0-42b7-8ebd-5186c848cbd4
[flink-akka.actor.default-dispatcher-2] INFO org.apache.flink.runtime.io.network.NetworkEnvironment - Shutting down the network environment and its components.
[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.rest.handler.legacy.backpressure.StackTraceSampleCoordinator - Shutting down stack trace sample coordinator.
[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopped dispatcher akka://flink/user/dispatcher017f25c6-3ebb-4c6f-a64d-6790cd6a8e50.
[flink-akka.actor.default-dispatcher-2] INFO org.apache.flink.runtime.taskexecutor.JobLeaderService - Stop job leader service.
[flink-akka.actor.default-dispatcher-2] INFO org.apache.flink.runtime.taskexecutor.TaskExecutor - Stopped TaskExecutor akka://flink/user/taskmanager_38.
[ForkJoinPool.commonPool-worker-11] INFO org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint - Removing cache directory /tmp/flink-web-ui
[ForkJoinPool.commonPool-worker-11] INFO org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopping Akka RPC service.
[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.blob.PermanentBlobCache - Shutting down BLOB cache
[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.blob.TransientBlobCache - Shutting down BLOB cache
[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.blob.BlobServer - Stopped BLOB server at 0.0.0.0:44311
[flink-akka.actor.default-dispatcher-4] INFO org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopped Akka RPC service.
[flink-runner-job-server] INFO org.apache.beam.runners.flink.FlinkRunner - Execution finished in 2084 msecs
[flink-runner-job-server] INFO org.apache.beam.runners.flink.FlinkRunner - Final accumulator values:
[flink-runner-job-server] INFO org.apache.beam.runners.flink.FlinkRunner - __metricscontainers : org.apache.beam.runners.core.metrics.MetricsContainerStepMap@437c9bd2
.
----------------------------------------------------------------------
Ran 26 tests in 78.529s

OK (skipped=8)
:beam-sdks-python:flinkCompatibilityMatrixStreaming (Thread[Task worker for ':' Thread 8,5,main]) completed. Took 1 mins 20.683 secs.

FAILURE: Build failed with an exception.

* Where:
Build file '<https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/ws/src/sdks/python/build.gradle'> line: 351

* What went wrong:
Execution failed for task ':beam-sdks-python:flinkCompatibilityMatrixBatch'.
> Process 'command 'sh'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.10.2/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 11m 27s
59 actionable tasks: 58 executed, 1 up-to-date

Publishing build scan...
https://gradle.com/s/dlnykwuwc5uti

Build step 'Invoke Gradle script' changed build result to FAILURE
Build step 'Invoke Gradle script' marked build as failure