See 
<https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/936/display/redirect?page=changes>

Changes:

[chamikara] Sets the correct coder when clustering is enabled for the


------------------------------------------
[...truncated 29.97 MB...]
        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)

[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.state.heap.HeapKeyedStateBackend - Initializing 
heap keyed state backend with stream factory.
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:45619.
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-0] INFO 
org.apache.beam.runners.fnexecution.control.FnApiControlClientPoolService - 
Beam Fn Control client connected with id 31-1
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to FINISHED.
[[1]Create/FlatMap(<lambda at core.py:2597>) (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
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(dcf2f60a2c22b488e3b4364b0e33b83c).
[[1]Create/FlatMap(<lambda at core.py:2597>) (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
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[flink-akka.actor.default-dispatcher-3] INFO 
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:2597>) dcf2f60a2c22b488e3b4364b0e33b83c.
[[4]assert_that/{Create, Group} (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - [4]assert_that/{Create, Group} 
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[4]assert_that/{Create, Group} (2/2) (55d97da2f90c1cd4b68c846dbcad3ddc).
[[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) 
(55d97da2f90c1cd4b68c846dbcad3ddc) [FINISHED]
[flink-akka.actor.default-dispatcher-3] 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} 55d97da2f90c1cd4b68c846dbcad3ddc.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
[1]Create/FlatMap(<lambda at core.py:2597>) (1/2) 
(dcf2f60a2c22b488e3b4364b0e33b83c) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
[4]assert_that/{Create, Group} (2/2) (55d97da2f90c1cd4b68c846dbcad3ddc) 
switched from RUNNING to FINISHED.
INFO:apache_beam.runners.worker.sdk_worker:Creating insecure state channel for 
localhost:40695.
INFO:apache_beam.runners.worker.sdk_worker:State channel established.
INFO:apache_beam.runners.worker.data_plane:Creating client data channel for 
localhost:39473
[grpc-default-executor-0] INFO 
org.apache.beam.runners.fnexecution.data.GrpcDataService - Beam Fn Data client 
connected.
[[4]assert_that/{Create, Group} (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - [4]assert_that/{Create, Group} 
(1/2) (d3e38ed27a28ea6360278d5ef0ef3499) switched from RUNNING to FINISHED.
[[4]assert_that/{Create, Group} (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
[4]assert_that/{Create, Group} (1/2) (d3e38ed27a28ea6360278d5ef0ef3499).
[[4]assert_that/{Create, Group} (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [4]assert_that/{Create, Group} (1/2) 
(d3e38ed27a28ea6360278d5ef0ef3499) [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 
[4]assert_that/{Create, Group} d3e38ed27a28ea6360278d5ef0ef3499.
[[1]Create/FlatMap(<lambda at core.py:2597>) (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - [1]Create/FlatMap(<lambda at 
core.py:2597>) (2/2) (d2f38095aefb5302c58720fd44cb2ce5) switched from RUNNING 
to FINISHED.
[[1]Create/FlatMap(<lambda at core.py:2597>) (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
[1]Create/FlatMap(<lambda at core.py:2597>) (2/2) 
(d2f38095aefb5302c58720fd44cb2ce5).
[[1]Create/FlatMap(<lambda at core.py:2597>) (2/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [1]Create/FlatMap(<lambda at core.py:2597>) (2/2) 
(d2f38095aefb5302c58720fd44cb2ce5) [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 
[1]Create/FlatMap(<lambda at core.py:2597>) d2f38095aefb5302c58720fd44cb2ce5.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
[4]assert_that/{Create, Group} (1/2) (d3e38ed27a28ea6360278d5ef0ef3499) 
switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-3] INFO 
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(d2f38095aefb5302c58720fd44cb2ce5) switched from RUNNING to FINISHED.
[[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
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org.apache.flink.runtime.taskmanager.Task - [3]{Create, Map(<lambda at 
fn_api_runner_test.py:593>), WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (2/2) 
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[[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
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org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
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(d92becc8536c19226081559f779b3792).
[[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
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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:593>), 
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(d92becc8536c19226081559f779b3792) [FINISHED]
[flink-akka.actor.default-dispatcher-3] 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:593>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem d92becc8536c19226081559f779b3792.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - [3]{Create, 
Map(<lambda at fn_api_runner_test.py:593>), WindowInto(WindowIntoFn)} -> 
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to FINISHED.
[[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - [3]{Create, Map(<lambda at 
fn_api_runner_test.py:593>), WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/2) 
(84b1a30d56de670c03e16ae4a827db49) switched from RUNNING to FINISHED.
[[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/2) 
(84b1a30d56de670c03e16ae4a827db49).
[[3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/2)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [3]{Create, Map(<lambda at fn_api_runner_test.py:593>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/2) 
(84b1a30d56de670c03e16ae4a827db49) [FINISHED]
[flink-akka.actor.default-dispatcher-3] 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:593>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem 84b1a30d56de670c03e16ae4a827db49.
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} 
(1/2)] INFO org.apache.flink.runtime.taskmanager.Task - GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} (1/2) 
(756a0394333f5924e53fe057c89c65eb) switched from RUNNING to FINISHED.
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} 
(1/2)] INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources 
for GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} 
(1/2) (756a0394333f5924e53fe057c89c65eb).
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} 
(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:596>), assert_that} (1/2) 
(756a0394333f5924e53fe057c89c65eb) [FINISHED]
[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 GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} 
756a0394333f5924e53fe057c89c65eb.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - [3]{Create, 
Map(<lambda at fn_api_runner_test.py:593>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem (1/2) (84b1a30d56de670c03e16ae4a827db49) switched from RUNNING 
to FINISHED.
[ToKeyedWorkItem (1/2)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (1/2) (69b5f33d91c9809ac07f91f9fc82340c) switched from RUNNING 
to FINISHED.
[ToKeyedWorkItem (1/2)] INFO org.apache.flink.runtime.taskmanager.Task - 
Freeing task resources for ToKeyedWorkItem (1/2) 
(69b5f33d91c9809ac07f91f9fc82340c).
[ToKeyedWorkItem (1/2)] INFO org.apache.flink.runtime.taskmanager.Task - 
Ensuring all FileSystem streams are closed for task ToKeyedWorkItem (1/2) 
(69b5f33d91c9809ac07f91f9fc82340c) [FINISHED]
[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 ToKeyedWorkItem 
69b5f33d91c9809ac07f91f9fc82340c.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} (1/2) 
(756a0394333f5924e53fe057c89c65eb) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/2) 
(69b5f33d91c9809ac07f91f9fc82340c) switched from RUNNING to FINISHED.
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[5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} (2/2) 
(6d557e307291e6d8d58b6650a064b706) switched from RUNNING to FINISHED.
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for GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} 
(2/2) (6d557e307291e6d8d58b6650a064b706).
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(2/2)] 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:596>), assert_that} (2/2) 
(6d557e307291e6d8d58b6650a064b706) [FINISHED]
[flink-akka.actor.default-dispatcher-3] INFO 
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:596>), assert_that} 
6d557e307291e6d8d58b6650a064b706.
[ToKeyedWorkItem (2/2)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (2/2) (a68913356a47aa081bbef29403d836ec) switched from RUNNING 
to FINISHED.
[ToKeyedWorkItem (2/2)] INFO org.apache.flink.runtime.taskmanager.Task - 
Freeing task resources for ToKeyedWorkItem (2/2) 
(a68913356a47aa081bbef29403d836ec).
[ToKeyedWorkItem (2/2)] INFO org.apache.flink.runtime.taskmanager.Task - 
Ensuring all FileSystem streams are closed for task ToKeyedWorkItem (2/2) 
(a68913356a47aa081bbef29403d836ec) [FINISHED]
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task ToKeyedWorkItem 
a68913356a47aa081bbef29403d836ec.
[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) 
(82c5668c4b6897d878db076306dff13f) switched from RUNNING to FINISHED.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2) 
(82c5668c4b6897d878db076306dff13f).
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (2/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
streams are closed for task assert_that/Group/GroupByKey -> 
[3]assert_that/{Group, Unkey, Match} (2/2) (82c5668c4b6897d878db076306dff13f) 
[FINISHED]
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} 
82c5668c4b6897d878db076306dff13f.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:596>), assert_that} (2/2) 
(6d557e307291e6d8d58b6650a064b706) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-4] INFO 
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(a68913356a47aa081bbef29403d836ec) 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) 
(82c5668c4b6897d878db076306dff13f) switched from RUNNING to FINISHED.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/2)] 
INFO org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory - 
Closing environment urn: "beam:env:external:v1"
payload: "\n\021\022\017localhost:42987"

INFO:apache_beam.runners.worker.sdk_worker:No more requests from control plane
INFO:apache_beam.runners.worker.sdk_worker:SDK Harness waiting for in-flight 
requests to complete
INFO:apache_beam.runners.worker.data_plane:Closing all cached grpc data 
channels.
INFO:apache_beam.runners.worker.sdk_worker:Closing all cached gRPC state 
handlers.
INFO:apache_beam.runners.worker.sdk_worker:Done consuming work.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/2)] 
WARN org.apache.beam.sdk.fn.data.BeamFnDataGrpcMultiplexer - Hanged up for 
unknown endpoint.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/2)] 
WARN org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory - 
Error cleaning up servers urn: "beam:env:external:v1"
payload: "\n\021\022\017localhost:42987"

java.lang.IllegalStateException: call already closed
        at 
org.apache.beam.vendor.grpc.v1p21p0.com.google.common.base.Preconditions.checkState(Preconditions.java:507)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ServerCallImpl.closeInternal(ServerCallImpl.java:205)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.internal.ServerCallImpl.close(ServerCallImpl.java:198)
        at 
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.stub.ServerCalls$ServerCallStreamObserverImpl.onCompleted(ServerCalls.java:369)
        at 
org.apache.beam.runners.fnexecution.state.GrpcStateService.close(GrpcStateService.java:63)
        at 
org.apache.beam.runners.fnexecution.GrpcFnServer.close(GrpcFnServer.java:95)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.$closeResource(DefaultJobBundleFactory.java:481)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.close(DefaultJobBundleFactory.java:481)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.unref(DefaultJobBundleFactory.java:496)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory$WrappedSdkHarnessClient.access$1800(DefaultJobBundleFactory.java:436)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory.lambda$createEnvironmentCaches$3(DefaultJobBundleFactory.java:168)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache.processPendingNotifications(LocalCache.java:1809)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.LocalCache$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$LocalManualCache.invalidateAll(LocalCache.java:4909)
        at 
org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory.close(DefaultJobBundleFactory.java:258)
        at 
org.apache.beam.runners.fnexecution.control.DefaultExecutableStageContext.close(DefaultExecutableStageContext.java:43)
        at 
org.apache.beam.runners.fnexecution.control.ReferenceCountingExecutableStageContextFactory$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)
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/2)] 
INFO org.apache.flink.runtime.taskmanager.Task - assert_that/Group/GroupByKey 
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networkMemoryInMB=2147483647, managedMemoryInMB=8128}, allocationId: 
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org.apache.beam.runners.flink.FlinkPipelineRunner - __metricscontainers : 
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42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_29}: 1, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_27}: 1, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_WindowInto(WindowIntoFn)_18}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/FlatMap(<lambda at 
core.py:2597>)_27}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/Map(decode)_16}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_28}: 1, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_1:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/Map(decode)_29}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_15:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_17:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/Map(decode)_29}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/FlatMap(<lambda at 
core.py:2597>)_27}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_17:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/Map(decode)_29}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_1}: 1, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_WindowInto(WindowIntoFn)_18}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_15}: 2, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_2}: 5, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_16}: 2, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/FlatMap(<lambda at 
core.py:2597>)_27}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_0_33}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 
{PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Map(_merge_tagged_vals_under_key)_40}:
 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Map(<lambda at 
fn_api_runner_test.py:593>)_17}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_2:0}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Unkey_41}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_34}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Unkey_41}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 
{PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Map(_merge_tagged_vals_under_key)_40}:
 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_24:1}: 2, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_17:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:0:0}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Match_42}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/FlatMap(<lambda at core.py:2597>)_4}: 
0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:1:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_34}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/WindowInto(WindowIntoFn)_30}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_15:0}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/Map(decode)_16}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_15:0}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Map(<lambda at 
fn_api_runner_test.py:596>)_23}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_34}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_0_33}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:0:0}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Map(<lambda at 
fn_api_runner_test.py:593>)_17}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_12:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_20}: 2, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_23}: 2, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Match_42}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/FlatMap(<lambda at core.py:2597>)_4}: 
0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_21}: 2, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:0:0}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/FlatMap(<lambda at core.py:2597>)_4}: 
0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_15:0}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_12:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_0_33}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 
0)Distributions(14Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_1}: DistributionResult{sum=13, 
count=1, min=13, max=13}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_10}: DistributionResult{sum=70, 
count=5, min=14, max=14}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_11}: DistributionResult{sum=100, 
count=5, min=20, max=20}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_12}: DistributionResult{sum=140, 
count=5, min=28, max=28}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_24:1}: DistributionResult{sum=60, 
count=2, min=29, max=31}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_9}: DistributionResult{sum=70, 
count=5, min=14, max=14}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_24:0}: DistributionResult{sum=19, 
count=1, min=19, max=19}, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1 
{PCOLLECTION=ref_PCollection_PCollection_2}: DistributionResult{sum=70, 
count=5, min=14, max=14}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_19}: DistributionResult{sum=15, 
count=1, min=15, max=15}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_15}: DistributionResult{sum=75, 
count=2, min=36, max=39}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_18}: DistributionResult{sum=15, 
count=1, min=15, max=15}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_16}: DistributionResult{sum=66, 
count=2, min=32, max=34}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_17}: DistributionResult{sum=13, 
count=1, min=13, max=13}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_30}: DistributionResult{sum=14, 
count=1, min=14, max=14}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_28}: DistributionResult{sum=47, 
count=1, min=47, max=47}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_29}: DistributionResult{sum=39, 
count=1, min=39, max=39}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_22}: DistributionResult{sum=17, 
count=1, min=17, max=17}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_20}: DistributionResult{sum=46, 
count=2, min=22, max=24}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_21}: DistributionResult{sum=48, 
count=2, min=23, max=25}, 
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] WARN 
org.apache.beam.runners.fnexecution.jobsubmission.InMemoryJobService - Failed 
to remove job staging directory for token 
{"sessionId":"job_4f5a3fb7-69e8-4e42-a813-89e23713f8ce","basePath":"/tmp/flinktestfk6abw3x"}:
 {}
java.io.FileNotFoundException: 
/tmp/flinktestfk6abw3x/job_4f5a3fb7-69e8-4e42-a813-89e23713f8ce/MANIFEST (No 
such file or directory)
        at java.io.FileInputStream.open0(Native Method)
        at java.io.FileInputStream.open(FileInputStream.java:195)
        at java.io.FileInputStream.<init>(FileInputStream.java:138)
        at org.apache.beam.sdk.io.LocalFileSystem.open(LocalFileSystem.java:118)
        at org.apache.beam.sdk.io.LocalFileSystem.open(LocalFileSystem.java:82)
        at org.apache.beam.sdk.io.FileSystems.open(FileSystems.java:252)
        at 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService.loadManifest(BeamFileSystemArtifactRetrievalService.java:88)
        at 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactStagingService.removeArtifacts(BeamFileSystemArtifactStagingService.java:92)
        at 
org.apache.beam.runners.fnexecution.jobsubmission.JobServerDriver.lambda$createJobService$0(JobServerDriver.java:63)
        at 
org.apache.beam.runners.fnexecution.jobsubmission.InMemoryJobService.lambda$run$0(InMemoryJobService.java:201)
        at 
org.apache.beam.runners.fnexecution.jobsubmission.JobInvocation.setState(JobInvocation.java:247)
        at 
org.apache.beam.runners.fnexecution.jobsubmission.JobInvocation.access$200(JobInvocation.java:48)
        at 
org.apache.beam.runners.fnexecution.jobsubmission.JobInvocation$1.onSuccess(JobInvocation.java:113)
        at 
org.apache.beam.runners.fnexecution.jobsubmission.JobInvocation$1.onSuccess(JobInvocation.java:99)
        at 
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1058)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
INFO:apache_beam.runners.portability.portable_runner:Job state changed to DONE
.INFO:__main__:removing conf dir: /tmp/flinktest-confs6veeta8
Exception in thread wait_until_finish_read:
Traceback (most recent call last):
  File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.5/threading.py", line 862, in run
    self._target(*self._args, **self._kwargs)
  File 
"<https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/ws/src/sdks/python/apache_beam/runners/portability/portable_runner.py";,>
 line 425, in read_messages
    for message in self._message_stream:
  File 
"<https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/ws/src/build/gradleenv/2022703439/lib/python3.5/site-packages/grpc/_channel.py";,>
 line 416, in __next__
    return self._next()
  File 
"<https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/ws/src/build/gradleenv/2022703439/lib/python3.5/site-packages/grpc/_channel.py";,>
 line 680, in _next
    event_handler)
  File "src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi", line 279, in 
grpc._cython.cygrpc.IntegratedCall.operate
  File "src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi", line 106, in 
grpc._cython.cygrpc._operate_from_integrated_call
  File "src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi", line 114, in 
grpc._cython.cygrpc._operate_from_integrated_call
  File "src/python/grpcio/grpc/_cython/_cygrpc/channel.pyx.pxi", line 61, in 
grpc._cython.cygrpc._raise_call_error_no_metadata
ValueError: Internal gRPC call error 8. Please report to 
https://github.com/grpc/grpc/issues


----------------------------------------------------------------------
Ran 76 tests in 789.149s

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 1h 5m 27s
72 actionable tasks: 55 executed, 16 from cache, 1 up-to-date

Publishing build scan...
https://gradle.com/s/7eotq3giqegb6

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

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