See 
<https://builds.apache.org/job/beam_PostCommit_XVR_Flink/356/display/redirect?page=changes>

Changes:

[chadrik] Create a more user friendly external transform API

[chadrik] KafkaIO: use StringUtf8Coder in Java to match python

[chadrik] Encode and decode using nested context

[chadrik] Add better error message for configuration type mismatch

[chadrik] Allow tests to specify a python 3 minor version, to isolate syntax

[chadrik] Split dataclass-based external transform tests to run in python 3.7 
only

[chadrik] Add dataclasses as a native library for isort

------------------------------------------
[...truncated 4.56 MB...]
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
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INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
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3ec83495b6ffdf2438fde06ffea8313d.
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9ea6cde48771fb5b81dad838bcd9ed91.
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org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
DataSink (DiscardingOutput) (12/16) (fa0684a24357bf3ef1d6c57dd9d36e3b) 
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
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4f03407bf64d0ba59780444dd39a2107.
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INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
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[flink-akka.actor.default-dispatcher-6] INFO 
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task MapPartition 
(MapPartition at [3]assert_that/{Group, Unkey, Match}) 
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[DataSink (DiscardingOutput) (16/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task DataSink 
(DiscardingOutput) (16/16) (7e84a300077392b0108df24fd72f29b2) [DEPLOYING].
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org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
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org.apache.flink.runtime.taskmanager.Task - Freeing task resources for DataSink 
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(7e84a300077392b0108df24fd72f29b2) [FINISHED]
[flink-akka.actor.default-dispatcher-7] INFO 
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task DataSink 
(DiscardingOutput) 7e84a300077392b0108df24fd72f29b2.
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org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream leak 
safety net for task DataSink (DiscardingOutput) (5/16) 
(357cd071535a42c83c91e5055c31980f) [DEPLOYING]
[DataSink (DiscardingOutput) (5/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task DataSink 
(DiscardingOutput) (5/16) (357cd071535a42c83c91e5055c31980f) [DEPLOYING].
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (16/16) (7e84a300077392b0108df24fd72f29b2) switched from 
RUNNING to FINISHED.
[DataSink (DiscardingOutput) (5/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
DataSink (DiscardingOutput) (5/16) (357cd071535a42c83c91e5055c31980f) 
[DEPLOYING].
[DataSink (DiscardingOutput) (5/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (5/16) 
(357cd071535a42c83c91e5055c31980f) switched from DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (5/16) (357cd071535a42c83c91e5055c31980f) switched from 
DEPLOYING to RUNNING.
[DataSink (DiscardingOutput) (5/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (5/16) 
(357cd071535a42c83c91e5055c31980f) switched from RUNNING to FINISHED.
[DataSink (DiscardingOutput) (5/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for DataSink 
(DiscardingOutput) (5/16) (357cd071535a42c83c91e5055c31980f).
[DataSink (DiscardingOutput) (5/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task DataSink (DiscardingOutput) (5/16) 
(357cd071535a42c83c91e5055c31980f) [FINISHED]
[flink-akka.actor.default-dispatcher-7] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task DataSink 
(DiscardingOutput) 357cd071535a42c83c91e5055c31980f.
[flink-akka.actor.default-dispatcher-7] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (5/16) (357cd071535a42c83c91e5055c31980f) switched from 
RUNNING to FINISHED.
[MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (15/16)] 
INFO org.apache.flink.runtime.taskmanager.Task - MapPartition (MapPartition at 
[3]assert_that/{Group, Unkey, Match}) (15/16) 
(8da650626d485f714cd19a0fa00abb8a) switched from RUNNING to FINISHED.
[MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (15/16)] 
INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (15/16) 
(8da650626d485f714cd19a0fa00abb8a).
[MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (15/16)] 
INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
streams are closed for task MapPartition (MapPartition at 
[3]assert_that/{Group, Unkey, Match}) (15/16) 
(8da650626d485f714cd19a0fa00abb8a) [FINISHED]
[jobmanager-future-thread-9] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (15/16) (916d8eb9a970e4c9ca2a1c09a878b48b) switched from 
CREATED to SCHEDULED.
[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 MapPartition 
(MapPartition at [3]assert_that/{Group, Unkey, Match}) 
8da650626d485f714cd19a0fa00abb8a.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (15/16) (916d8eb9a970e4c9ca2a1c09a878b48b) switched from 
SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying DataSink 
(DiscardingOutput) (15/16) (attempt #0) to localhost
[MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (10/16)] 
INFO org.apache.flink.runtime.taskmanager.Task - MapPartition (MapPartition at 
[3]assert_that/{Group, Unkey, Match}) (10/16) 
(123fcb61d542c2275da5a499c12ce135) switched from RUNNING to FINISHED.
[MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (10/16)] 
INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (10/16) 
(123fcb61d542c2275da5a499c12ce135).
[jobmanager-future-thread-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (10/16) (f90667173c7f2b4e584bc532d7a96369) switched from 
CREATED to SCHEDULED.
[MapPartition (MapPartition at [3]assert_that/{Group, Unkey, Match}) (10/16)] 
INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
streams are closed for task MapPartition (MapPartition at 
[3]assert_that/{Group, Unkey, Match}) (10/16) 
(123fcb61d542c2275da5a499c12ce135) [FINISHED]
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task DataSink 
(DiscardingOutput) (15/16).
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (10/16) (f90667173c7f2b4e584bc532d7a96369) switched from 
SCHEDULED to 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 MapPartition 
(MapPartition at [3]assert_that/{Group, Unkey, Match}) 
123fcb61d542c2275da5a499c12ce135.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - MapPartition 
(MapPartition at [3]assert_that/{Group, Unkey, Match}) (15/16) 
(8da650626d485f714cd19a0fa00abb8a) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying DataSink 
(DiscardingOutput) (10/16) (attempt #0) to localhost
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (15/16) 
(916d8eb9a970e4c9ca2a1c09a878b48b) switched from CREATED to DEPLOYING.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - MapPartition 
(MapPartition at [3]assert_that/{Group, Unkey, Match}) (10/16) 
(123fcb61d542c2275da5a499c12ce135) switched from RUNNING to FINISHED.
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream leak 
safety net for task DataSink (DiscardingOutput) (15/16) 
(916d8eb9a970e4c9ca2a1c09a878b48b) [DEPLOYING]
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task DataSink 
(DiscardingOutput) (15/16) (916d8eb9a970e4c9ca2a1c09a878b48b) [DEPLOYING].
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task DataSink 
(DiscardingOutput) (10/16).
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
DataSink (DiscardingOutput) (15/16) (916d8eb9a970e4c9ca2a1c09a878b48b) 
[DEPLOYING].
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (10/16) 
(f90667173c7f2b4e584bc532d7a96369) switched from CREATED to DEPLOYING.
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (15/16) 
(916d8eb9a970e4c9ca2a1c09a878b48b) switched from DEPLOYING to RUNNING.
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream leak 
safety net for task DataSink (DiscardingOutput) (10/16) 
(f90667173c7f2b4e584bc532d7a96369) [DEPLOYING]
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task DataSink 
(DiscardingOutput) (10/16) (f90667173c7f2b4e584bc532d7a96369) [DEPLOYING].
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (15/16) (916d8eb9a970e4c9ca2a1c09a878b48b) switched from 
DEPLOYING to RUNNING.
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
DataSink (DiscardingOutput) (10/16) (f90667173c7f2b4e584bc532d7a96369) 
[DEPLOYING].
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (15/16) 
(916d8eb9a970e4c9ca2a1c09a878b48b) switched from RUNNING to FINISHED.
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for DataSink 
(DiscardingOutput) (15/16) (916d8eb9a970e4c9ca2a1c09a878b48b).
[DataSink (DiscardingOutput) (15/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task DataSink (DiscardingOutput) (15/16) 
(916d8eb9a970e4c9ca2a1c09a878b48b) [FINISHED]
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (10/16) 
(f90667173c7f2b4e584bc532d7a96369) switched from DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-7] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task DataSink 
(DiscardingOutput) 916d8eb9a970e4c9ca2a1c09a878b48b.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (10/16) (f90667173c7f2b4e584bc532d7a96369) switched from 
DEPLOYING to RUNNING.
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - DataSink (DiscardingOutput) (10/16) 
(f90667173c7f2b4e584bc532d7a96369) switched from RUNNING to FINISHED.
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for DataSink 
(DiscardingOutput) (10/16) (f90667173c7f2b4e584bc532d7a96369).
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (15/16) (916d8eb9a970e4c9ca2a1c09a878b48b) switched from 
RUNNING to FINISHED.
[DataSink (DiscardingOutput) (10/16)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task DataSink (DiscardingOutput) (10/16) 
(f90667173c7f2b4e584bc532d7a96369) [FINISHED]
[flink-akka.actor.default-dispatcher-7] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task DataSink 
(DiscardingOutput) f90667173c7f2b4e584bc532d7a96369.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink 
(DiscardingOutput) (10/16) (f90667173c7f2b4e584bc532d7a96369) switched from 
RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Job 
BeamApp-root-0912221142-e488e382 (8551b6f7a09cf85f8feefdf3b5c98041) switched 
from state RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Job 
8551b6f7a09cf85f8feefdf3b5c98041 reached globally terminal state FINISHED.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Stopping the JobMaster for job 
BeamApp-root-0912221142-e488e382(8551b6f7a09cf85f8feefdf3b5c98041).
[flink-runner-job-invoker] INFO 
org.apache.flink.runtime.minicluster.MiniCluster - Shutting down Flink Mini 
Cluster
[flink-runner-job-invoker] INFO 
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint - Shutting down rest 
endpoint.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Stopping TaskExecutor 
akka://flink/user/taskmanager_0.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Close ResourceManager connection 
9d58b61e65eafe0fde1da13cb9fde9b5: JobManager is shutting down..
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.state.TaskExecutorLocalStateStoresManager - Shutting 
down TaskExecutorLocalStateStoresManager.
[flink-akka.actor.default-dispatcher-7] INFO 
org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Suspending SlotPool.
[flink-akka.actor.default-dispatcher-7] INFO 
org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Stopping SlotPool.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopping dispatcher 
akka://flink/user/dispatcher6821282b-4352-4252-b673-b5ebc374ae05.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopping all 
currently running jobs of dispatcher 
akka://flink/user/dispatcher6821282b-4352-4252-b673-b5ebc374ae05.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Disconnect 
job manager 86c84c5699d4388cf0d742a25e8447ff@akka://flink/user/jobmanager_1 for 
job 8551b6f7a09cf85f8feefdf3b5c98041 from the resource manager.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - JobManager for job 
8551b6f7a09cf85f8feefdf3b5c98041 with leader id 
86c84c5699d4388cf0d742a25e8447ff lost leadership.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.io.disk.iomanager.IOManager - I/O manager removed 
spill file directory /tmp/flink-io-546a5355-4107-4679-a3c3-229fb2380678
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.io.network.NetworkEnvironment - Shutting down the 
network environment and its components.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.rest.handler.legacy.backpressure.StackTraceSampleCoordinator
 - Shutting down stack trace sample coordinator.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopped dispatcher 
akka://flink/user/dispatcher6821282b-4352-4252-b673-b5ebc374ae05.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Stop job leader 
service.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Stopped TaskExecutor 
akka://flink/user/taskmanager_0.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - Closing the 
SlotManager.
[flink-akka.actor.default-dispatcher-6] INFO 
org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - Suspending 
the SlotManager.
[ForkJoinPool.commonPool-worker-9] INFO 
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint - Removing cache 
directory /tmp/flink-web-ui
[ForkJoinPool.commonPool-worker-9] INFO 
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint - Shut down complete.
[ForkJoinPool.commonPool-worker-9] INFO 
org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopping Akka RPC service.
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.blob.PermanentBlobCache - Shutting down BLOB cache
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.blob.TransientBlobCache - Shutting down BLOB cache
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.blob.BlobServer - Stopped BLOB server at 0.0.0.0:37641
[flink-akka.actor.default-dispatcher-8] INFO 
org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopped Akka RPC service.
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.flink.FlinkPipelineRunner - Execution finished in 19506 
msecs
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.flink.FlinkPipelineRunner - Final accumulator values:
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.flink.FlinkPipelineRunner - __metricscontainers : 
MetricQueryResults(Counters(ref_PCollection_PCollection_27:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_27:0}: 0, 
ref_PCollection_PCollection_9:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Map(<lambda at external_test.py:366>)_18}: 
0, 
ref_PCollection_PCollection_9:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 0, 
pcollection_1:beam:metric:ptransform_execution_time:total_msecs:v1 
{PTRANSFORM=fn/write/ref_PCollection_PCollection_24:1:0}: 0, 
ref_PCollection_PCollection_17:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/FlatMap(<lambda at 
core.py:2464>)_26}: 0, 
ref_PCollection_PCollection_9:beam:metric:ptransform_execution_time:total_msecs:v1
 
{PTRANSFORM=external_4_AppliedPTransform_root/PerElement/PerElement:PairWithVoid_4}:
 116, pcollection_1:beam:metric:pardo_execution_time:finish_bundle_msecs:v1 
{PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_33}: 0, 
ref_PCollection_PCollection_9:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 0, 
ref_PCollection_PCollection_27:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_27:0}: 0, 
pcollection_1:beam:metric:pardo_execution_time:start_bundle_msecs:v1 
{PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_33}: 156, 
ref_PCollection_PCollection_9:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 0, 
pcollection_1:beam:metric:ptransform_execution_time:total_msecs:v1 
{PTRANSFORM=ExternalTransform(beam:transforms:xlang:count)/PerElement/CombinePerKey(CountCombineFn)/ExtractOutputs}:
 0, pcollection_1:beam:metric:pardo_execution_time:process_bundle_msecs:v1 
{PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_33}: 0, 
ref_PCollection_PCollection_1:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_1:0}: 0, 
ref_PCollection_PCollection_17:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/FlatMap(<lambda at 
core.py:2464>)_26}: 0, 
ref_PCollection_PCollection_17:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_18}: 1, 
ref_PCollection_PCollection_9:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/Map(decode)_16}: 0, 
ref_PCollection_PCollection_9:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=external_3_AppliedPTransform_root/Filter(<lambda at 
expansion_service_test.py:62>)_3}: 0, 
pcollection_1:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_21}: 3, 
pcollection_1:beam:metric:pardo_execution_time:process_bundle_msecs:v1 
{PTRANSFORM=ref_AppliedPTransform_Map(<lambda at external_test.py:371>)_22}: 0, 
ref_PCollection_PCollection_17:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_19}: 1, 
pcollection_1:beam:metric:ptransform_execution_time:total_msecs:v1 
{PTRANSFORM=ExternalTransform(beam:transforms:xlang:count)/PerElement/CombinePerKey(CountCombineFn)/Merge}:
 0, pcollection_1:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_23}: 3, 
pcollection_1:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_20}: 3, 
ref_PCollection_PCollection_17:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Create/Map(decode)_28}: 0, 
ref_PCollection_PCollection_17:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_17}: 1, 
ref_PCollection_PCollection_27:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Match_41}: 65, 
ref_PCollection_PCollection_9:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=external_3_AppliedPTransform_root/Filter(<lambda at 
expansion_service_test.py:62>)_3}: 0, 
ref_PCollection_PCollection_17:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_24:0}: 1, 
pcollection_1:beam:metric:element_count:v1 {PCOLLECTION=pcollection_1}: 3, 
pcollection_1:beam:metric:ptransform_execution_time:total_msecs:v1 
{PTRANSFORM=ref_AppliedPTransform_assert_that/WindowInto(WindowIntoFn)_29}: 0, 
ref_PCollection_PCollection_1:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_2:0}: 0, 
ref_PCollection_PCollection_27:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Match_41}: 0, 
ref_PCollection_PCollection_1:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_1}: 1, 
ref_PCollection_PCollection_9:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=external_3_AppliedPTransform_root/Filter(<lambda at 
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ref_PCollection_PCollection_1:beam:metric:element_count:v1 
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{PCOLLECTION=ref_PCollection_PCollection_29}: DistributionResult{sum=33, 
count=1, min=33, max=33}, 
ref_PCollection_PCollection_1:beam:metric:sampled_byte_size:v1 
{PCOLLECTION=ref_PCollection_PCollection_2}: DistributionResult{sum=180, 
count=12, min=15, max=15}))
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - Manifest at 
/tmp/beam-artifact-staging/job_03e6fe4f-48fe-4077-b9cf-5d9e6620f42b/MANIFEST 
has 0 artifact locations
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactStagingService
 - Removed dir 
/tmp/beam-artifact-staging/job_03e6fe4f-48fe-4077-b9cf-5d9e6620f42b/
ok
test_multi (apache_beam.transforms.external_test.ExternalTransformTest) ... ok
test_nested (apache_beam.transforms.external_test.ExternalTransformTest) ... ok
test_payload (apache_beam.transforms.external_test.ExternalTransformTest) ... ok
test_pipeline_generation 
(apache_beam.transforms.external_test.ExternalTransformTest) ... ok
test_simple (apache_beam.transforms.external_test.ExternalTransformTest) ... ok
Failure: SyntaxError (invalid syntax (external_test_py37.py, line 46)) ... ERROR

======================================================================
ERROR: Failure: SyntaxError (invalid syntax (external_test_py37.py, line 46))
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"<https://builds.apache.org/job/beam_PostCommit_XVR_Flink/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/nose/loader.py";,>
 line 418, in loadTestsFromName
    addr.filename, addr.module)
  File 
"<https://builds.apache.org/job/beam_PostCommit_XVR_Flink/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/nose/importer.py";,>
 line 47, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File 
"<https://builds.apache.org/job/beam_PostCommit_XVR_Flink/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/nose/importer.py";,>
 line 94, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File 
"<https://builds.apache.org/job/beam_PostCommit_XVR_Flink/ws/src/sdks/python/apache_beam/transforms/external_test_py37.py";,>
 line 46
    integer_example: int
                   ^
SyntaxError: invalid syntax

----------------------------------------------------------------------
XML: nosetests-xlangValidateRunner.xml
----------------------------------------------------------------------
XML: 
<https://builds.apache.org/job/beam_PostCommit_XVR_Flink/ws/src/sdks/python/nosetests.xml>
----------------------------------------------------------------------
Ran 10 tests in 43.223s

FAILED (SKIP=1, errors=1)

> Task 
> :runners:flink:1.5:job-server:validatesCrossLanguageRunnerPythonUsingPython 
> FAILED
> Task :runners:flink:1.5:job-server:validatesCrossLanguageRunnerCleanup

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task 
':runners:flink:1.5:job-server:validatesCrossLanguageRunnerPythonUsingJava'.
> 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.
==============================================================================

2: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task 
':runners:flink:1.5:job-server:validatesCrossLanguageRunnerPythonUsingPython'.
> 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 12m 49s
125 actionable tasks: 99 executed, 20 from cache, 6 up-to-date

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

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

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