See 
<https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/478/display/redirect?page=changes>

Changes:

[github] [BEAM-3419] Flesh out iterable side inputs and key enumeration for


------------------------------------------
[...truncated 33.91 MB...]
java.lang.RuntimeException: ManagedChannel allocation site
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ManagedChannelOrphanWrapper$ManagedChannelReference.<init>(ManagedChannelOrphanWrapper.java:94)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ManagedChannelOrphanWrapper.<init>(ManagedChannelOrphanWrapper.java:52)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ManagedChannelOrphanWrapper.<init>(ManagedChannelOrphanWrapper.java:43)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.AbstractManagedChannelImplBuilder.build(AbstractManagedChannelImplBuilder.java:514)
        at 
org.apache.beam.sdk.fn.channel.ManagedChannelFactory.forDescriptor(ManagedChannelFactory.java:44)
        at 
org.apache.beam.runners.fnexecution.environment.ExternalEnvironmentFactory$1.close(ExternalEnvironmentFactory.java:155)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.$closeResource(DefaultJobBundleFactory.java:381)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.close(DefaultJobBundleFactory.java:381)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.unref(DefaultJobBundleFactory.java:401)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.access$800(DefaultJobBundleFactory.java:347)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory.lambda$createEnvironmentCaches$3(DefaultJobBundleFactory.java:154)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache.processPendingNotifications(LocalCache.java:1809)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$Segment.runUnlockedCleanup(LocalCache.java:3462)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$Segment.postWriteCleanup(LocalCache.java:3438)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$Segment.clear(LocalCache.java:3215)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache.clear(LocalCache.java:4270)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$LocalManualCache.invalidateAll(LocalCache.java:4909)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory.close(DefaultJobBundleFactory.java:224)
        at 
org.apache.beam.runners.fnexecution.control.DefaultExecutableStageContext.close(DefaultExecutableStageContext.java:43)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory$WrappedContext.closeActual(ReferenceCountingExecutableStageContextFactory.java:208)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory$WrappedContext.access$200(ReferenceCountingExecutableStageContextFactory.java:184)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory.release(ReferenceCountingExecutableStageContextFactory.java:173)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory.scheduleRelease(ReferenceCountingExecutableStageContextFactory.java:132)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory.access$300(ReferenceCountingExecutableStageContextFactory.java:44)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory$WrappedContext.close(ReferenceCountingExecutableStageContextFactory.java:204)
        at 
org.apache.beam.runners.flink.translation.wrappers.streaming.ExecutableStageDoFnOperator.$closeResource(ExecutableStageDoFnOperator.java:489)
        at 
org.apache.beam.runners.flink.translation.wrappers.streaming.ExecutableStageDoFnOperator.dispose(ExecutableStageDoFnOperator.java:489)
        at 
org.apache.flink.streaming.runtime.tasks.StreamTask.tryDisposeAllOperators(StreamTask.java:562)
        at 
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:443)
        at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705)
        at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
        at java.lang.Thread.run(Thread.java:748)

Nov 20, 2019 8:55:23 PM 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ManagedChannelOrphanWrapper$ManagedChannelReference
 cleanQueue
SEVERE: *~*~*~ Channel ManagedChannelImpl{logId=930, target=localhost:36813} 
was not shutdown properly!!! ~*~*~*
    Make sure to call shutdown()/shutdownNow() and wait until 
awaitTermination() returns true.
java.lang.RuntimeException: ManagedChannel allocation site
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ManagedChannelOrphanWrapper$ManagedChannelReference.<init>(ManagedChannelOrphanWrapper.java:94)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ManagedChannelOrphanWrapper.<init>(ManagedChannelOrphanWrapper.java:52)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ManagedChannelOrphanWrapper.<init>(ManagedChannelOrphanWrapper.java:43)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.AbstractManagedChannelImplBuilder.build(AbstractManagedChannelImplBuilder.java:514)
        at 
org.apache.beam.sdk.fn.channel.ManagedChannelFactory.forDescriptor(ManagedChannelFactory.java:44)
        at 
org.apache.beam.runners.fnexecution.environment.ExternalEnvironmentFactory.createEnvironment(ExternalEnvironmentFactory.java:112)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$1.load(DefaultJobBundleFactory.java:186)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$1.load(DefaultJobBundleFactory.java:170)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3528)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2277)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2154)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2044)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache.get(LocalCache.java:3952)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3974)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4958)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4964)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$SimpleStageBundleFactory.<init>(DefaultJobBundleFactory.java:246)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$SimpleStageBundleFactory.<init>(DefaultJobBundleFactory.java:234)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory.forStage(DefaultJobBundleFactory.java:216)
        at 
org.apache.beam.runners.fnexecution.control.DefaultExecutableStageContext.getStageBundleFactory(DefaultExecutableStageContext.java:38)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory$WrappedContext.getStageBundleFactory(ReferenceCountingExecutableStageContextFactory.java:198)
        at 
org.apache.beam.runners.flink.translation.wrappers.streaming.ExecutableStageDoFnOperator.open(ExecutableStageDoFnOperator.java:196)
        at 
org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:532)
        at 
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:396)
        at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705)
        at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
        at java.lang.Thread.run(Thread.java:748)

[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:589>), assert_that} 
(2/2)] INFO org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - 
Initializing heap keyed state backend with stream factory.
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:589>), assert_that} 
(1/2)] INFO org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - 
Initializing heap keyed state backend with stream factory.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/2)] 
INFO org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - Initializing 
heap keyed state backend with stream factory.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - assert_that/Group/GroupByKey 
-> [3]assert_that/{Group, Unkey, Match} (2/2) 
(0257a8ad9916b34f5f31be18a994f5c0) switched from CREATED to DEPLOYING.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot 
41b242a15c9ffff9a6f9fad9a6cd53f2.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream 
leak safety net for task assert_that/Group/GroupByKey -> [3]assert_that/{Group, 
Unkey, Match} (2/2) (0257a8ad9916b34f5f31be18a994f5c0) [DEPLOYING]
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2) 
(0257a8ad9916b34f5f31be18a994f5c0) [DEPLOYING].
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task Source: Impulse 
3d75065d770c46f3f0925587f36a90f8.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task Source: Impulse 
a7fb57b1d91e65ff0ec69357a5bcca70.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2) 
(0257a8ad9916b34f5f31be18a994f5c0) [DEPLOYING].
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - assert_that/Group/GroupByKey 
-> [3]assert_that/{Group, Unkey, Match} (2/2) 
(0257a8ad9916b34f5f31be18a994f5c0) switched from DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Impulse (1/1) 
(3d75065d770c46f3f0925587f36a90f8) switched from RUNNING to FINISHED.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.streaming.runtime.tasks.StreamTask - No state backend has 
been configured, using default (Memory / JobManager) MemoryStateBackend (data 
in heap memory / checkpoints to JobManager) (checkpoints: 'null', savepoints: 
'null', asynchronous: TRUE, maxStateSize: 5242880)
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Impulse (1/1) 
(a7fb57b1d91e65ff0ec69357a5bcca70) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2) 
(0257a8ad9916b34f5f31be18a994f5c0) switched from DEPLOYING to RUNNING.
INFO:apache_beam.runners.worker.statecache:Creating state cache with size 0
INFO:apache_beam.runners.worker.sdk_worker:Creating insecure control channel 
for localhost:41761.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - Initializing 
heap keyed state backend with stream factory.
INFO:apache_beam.runners.worker.sdk_worker:Control channel established.
INFO:apache_beam.runners.worker.sdk_worker:Initializing SDKHarness with 
unbounded number of workers.
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.control.FnApiControlClientPoolService - 
Beam Fn Control client connected with id 31-1
[[4]assert_that/{Create, Group} (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - [4]assert_that/{Create, Group} 
(2/2) (310b696c623fe48a36be907e53d7a1c1) switched from RUNNING to FINISHED.
[[4]assert_that/{Create, Group} (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
[4]assert_that/{Create, Group} (2/2) (310b696c623fe48a36be907e53d7a1c1).
[[4]assert_that/{Create, Group} (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [4]assert_that/{Create, Group} (2/2) 
(310b696c623fe48a36be907e53d7a1c1) [FINISHED]
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task 
[4]assert_that/{Create, Group} 310b696c623fe48a36be907e53d7a1c1.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
[4]assert_that/{Create, Group} (2/2) (310b696c623fe48a36be907e53d7a1c1) 
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org.apache.flink.runtime.taskmanager.Task - [1]Create/FlatMap(<lambda at 
core.py:2532>) (2/2) (959a3d014eab92cce503b514f669bf4c) switched from RUNNING 
to FINISHED.
[[1]Create/FlatMap(<lambda at core.py:2532>) (2/2)] INFO 
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[1]Create/FlatMap(<lambda at core.py:2532>) (2/2) 
(959a3d014eab92cce503b514f669bf4c).
[[1]Create/FlatMap(<lambda at core.py:2532>) (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
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(959a3d014eab92cce503b514f669bf4c) [FINISHED]
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task 
[1]Create/FlatMap(<lambda at core.py:2532>) 959a3d014eab92cce503b514f669bf4c.
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[1]Create/FlatMap(<lambda at core.py:2532>) (2/2) 
(959a3d014eab92cce503b514f669bf4c) switched from RUNNING to FINISHED.
INFO:apache_beam.runners.worker.sdk_worker:Creating insecure state channel for 
localhost:35665.
INFO:apache_beam.runners.worker.sdk_worker:State channel established.
INFO:apache_beam.runners.worker.data_plane:Creating client data channel for 
localhost:37215
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.data.GrpcDataService - Beam Fn Data client 
connected.
[[1]Create/FlatMap(<lambda at core.py:2532>) (1/2)] INFO 
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core.py:2532>) (1/2) (9596a9bbdb9876432585a7a9785b3b0c) switched from RUNNING 
to FINISHED.
[[1]Create/FlatMap(<lambda at core.py:2532>) (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
[1]Create/FlatMap(<lambda at core.py:2532>) (1/2) 
(9596a9bbdb9876432585a7a9785b3b0c).
[[1]Create/FlatMap(<lambda at core.py:2532>) (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [1]Create/FlatMap(<lambda at core.py:2532>) (1/2) 
(9596a9bbdb9876432585a7a9785b3b0c) [FINISHED]
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task 
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[[3]{Create, Map(<lambda at fn_api_runner_test.py:586>), 
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org.apache.flink.runtime.taskmanager.Task - [3]{Create, Map(<lambda at 
fn_api_runner_test.py:586>), WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/2) 
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[[3]{Create, Map(<lambda at fn_api_runner_test.py:586>), 
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[3]{Create, Map(<lambda at fn_api_runner_test.py:586>), 
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(e9de97aab48d0aa29488dbfe40e49a4a).
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org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [3]{Create, Map(<lambda at fn_api_runner_test.py:586>), 
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(e9de97aab48d0aa29488dbfe40e49a4a) [FINISHED]
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task [3]{Create, 
Map(<lambda at fn_api_runner_test.py:586>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem e9de97aab48d0aa29488dbfe40e49a4a.
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org.apache.flink.runtime.executiongraph.ExecutionGraph - [3]{Create, 
Map(<lambda at fn_api_runner_test.py:586>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem (1/2) (e9de97aab48d0aa29488dbfe40e49a4a) switched from RUNNING 
to FINISHED.
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org.apache.flink.runtime.taskmanager.Task - [3]{Create, Map(<lambda at 
fn_api_runner_test.py:586>), WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (2/2) 
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[3]{Create, Map(<lambda at fn_api_runner_test.py:586>), 
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(5ca1000d9fd0e45712023e2619e02dfe).
[[3]{Create, Map(<lambda at fn_api_runner_test.py:586>), 
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org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [3]{Create, Map(<lambda at fn_api_runner_test.py:586>), 
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(5ca1000d9fd0e45712023e2619e02dfe) [FINISHED]
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task [3]{Create, 
Map(<lambda at fn_api_runner_test.py:586>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem 5ca1000d9fd0e45712023e2619e02dfe.
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:589>), assert_that} 
(1/2)] INFO org.apache.flink.runtime.taskmanager.Task - GroupByKey -> 
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for GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:589>), assert_that} 
(1/2) (787e66e34b0c8b1014c1c8510170e519).
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(1/2)] INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
streams are closed for task GroupByKey -> [5]{Map(<lambda at 
fn_api_runner_test.py:589>), assert_that} (1/2) 
(787e66e34b0c8b1014c1c8510170e519) [FINISHED]
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:589>), assert_that} 
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[flink-akka.actor.default-dispatcher-4] INFO 
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org.apache.beam.runners.flink.FlinkPipelineRunner - __metricscontainers : 
MetricQueryResults(Counters(26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
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48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
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48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
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42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 
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24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
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42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
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24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
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24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
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42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
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24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
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26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
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 {PCOLLECTION=ref_PCollection_PCollection_21}: DistributionResult{sum=48, 
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24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_23}: DistributionResult{sum=52, 
count=2, min=25, max=27}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_27}: DistributionResult{sum=59, 
count=1, min=59, max=59}))
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.fnexecution.artifact.AbstractArtifactRetrievalService - 
Manifest at 
/tmp/flinktestix_fbt6z/job_a7c00389-8bfb-4c90-99db-228f556bbe42/MANIFEST has 0 
artifact locations
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactStagingService
 - Removed dir /tmp/flinktestix_fbt6z/job_a7c00389-8bfb-4c90-99db-228f556bbe42/
INFO:apache_beam.runners.portability.portable_runner:Job state changed to DONE
.INFO:__main__:removing conf dir: /tmp/flinktest-conflh2zsjia

----------------------------------------------------------------------
Ran 76 tests in 135.432s

OK (skipped=14)

FAILURE: Build failed with an exception.

* Where:
Script 
'<https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/ws/src/sdks/python/test-suites/portable/common.gradle'>
 line: 55

* What went wrong:
Execution failed for task 
':sdks:python:test-suites:portable:py35:flinkCompatibilityMatrixBatchLOOPBACK'.
> Process 'command 'sh'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --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 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See 
https://docs.gradle.org/5.2.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 36m 59s
72 actionable tasks: 54 executed, 17 from cache, 1 up-to-date

Publishing build scan...
https://gradle.com/s/z7kwpx52sepu4

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

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