See 
<https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/761/display/redirect>

------------------------------------------
[...truncated 4.04 MB...]
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.jobmaster.JobManagerRunner - JobManager runner for job 
test_windowing_1542283927.23 (e09b08773984b8646b87b22cf527ca71) was granted 
leadership with session id 06d7de32-29e1-4863-b185-3ec2a21e0d21 at 
akka://flink/user/jobmanager_39.
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org.apache.flink.runtime.jobmaster.JobMaster - Starting execution of job 
test_windowing_1542283927.23 (e09b08773984b8646b87b22cf527ca71)
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org.apache.flink.runtime.executiongraph.ExecutionGraph - Job 
test_windowing_1542283927.23 (e09b08773984b8646b87b22cf527ca71) switched from 
state CREATED to RUNNING.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
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[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) switched from CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) switched from 
CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) switched from CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) switched from CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) switched from CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Cannot serve slot 
request, no ResourceManager connected. Adding as pending request 
[SlotRequestId{c2c82d624def27be6e815b0a3178c01e}]
[jobmanager-future-thread-1] INFO 
org.apache.flink.runtime.highavailability.nonha.embedded.EmbeddedLeaderService 
- Received confirmation of leadership for leader 
akka://flink/user/jobmanager_39 , session=06d7de32-29e1-4863-b185-3ec2a21e0d21
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Connecting to ResourceManager 
akka://flink/user/resourcemanager_bb4d9a49-471c-4838-b9bf-e5edee94def6(bb41af1739592a8db42c6a2899a740e9)
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Resolved ResourceManager 
address, beginning registration
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Registration at ResourceManager 
attempt 1 (timeout=100ms)
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - 
Registering job manager 
b1853ec2a21e0d2106d7de3229e14863@akka://flink/user/jobmanager_39 for job 
e09b08773984b8646b87b22cf527ca71.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Registered 
job manager b1853ec2a21e0d2106d7de3229e14863@akka://flink/user/jobmanager_39 
for job e09b08773984b8646b87b22cf527ca71.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - JobManager successfully 
registered at ResourceManager, leader id: bb41af1739592a8db42c6a2899a740e9.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot 
[SlotRequestId{c2c82d624def27be6e815b0a3178c01e}] and profile 
ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, 
nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Request 
slot with profile ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, 
directMemoryInMB=0, nativeMemoryInMB=0, networkMemoryInMB=0} for job 
e09b08773984b8646b87b22cf527ca71 with allocation id 
AllocationID{de74a2b1a2f469e86c2c0bb98af81f73}.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request 
AllocationID{de74a2b1a2f469e86c2c0bb98af81f73} for job 
e09b08773984b8646b87b22cf527ca71 from resource manager with leader id 
bb41af1739592a8db42c6a2899a740e9.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for 
AllocationID{de74a2b1a2f469e86c2c0bb98af81f73}.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 
e09b08773984b8646b87b22cf527ca71 for job leader monitoring.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Try to register at job 
manager akka://flink/user/jobmanager_39 with leader id 
06d7de32-29e1-4863-b185-3ec2a21e0d21.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Resolved JobManager 
address, beginning registration
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Registration at 
JobManager attempt 1 (timeout=100ms)
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Successful 
registration at job manager akka://flink/user/jobmanager_39 for job 
e09b08773984b8646b87b22cf527ca71.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Establish JobManager 
connection for job e09b08773984b8646b87b22cf527ca71.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Offer reserved slots to 
the leader of job e09b08773984b8646b87b22cf527ca71.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot 
AllocationID{de74a2b1a2f469e86c2c0bb98af81f73}.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying Source: 
Custom Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(attempt #0) to localhost
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying Source: 
Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem 
(1/1) (attempt #0) to localhost
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) switched from 
SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (attempt #0) to localhost
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying GroupByKey 
-> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) (attempt #0) to 
localhost
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task Source: 
Custom Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1).
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying 
ToKeyedWorkItem (1/1) (attempt #0) to localhost
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(attempt #0) to localhost
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) switched from CREATED to DEPLOYING.
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream leak 
safety net for task Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) [DEPLOYING]
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task Source: 
Custom Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) [DEPLOYING].
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task Source: 
Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem 
(1/1).
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
Source: Custom Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 
(1/1) (4f57431b7788b9c0a759d3f65ac2241d) [DEPLOYING].
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - Source: 
Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem 
(1/1) (d7106ffd00c5bc5448ec862504517d72) switched from CREATED to DEPLOYING.
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Creating FileSystem stream leak safety net for task Source: Custom Source -> 
14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72) [DEPLOYING]
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - Loading 
JAR files for task Source: Custom Source -> 
14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72) [DEPLOYING].
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Registering task at network: Source: Custom Source -> 
14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72) [DEPLOYING].
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1).
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) switched from 
CREATED to DEPLOYING.
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Creating FileSystem stream leak safety net for task 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) [DEPLOYING]
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Loading JAR files for task 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) [DEPLOYING].
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Registering task at network: 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) [DEPLOYING].
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task GroupByKey 
-> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1).
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) switched from CREATED to DEPLOYING.
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream leak 
safety net for task GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) [DEPLOYING]
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task 
GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) [DEPLOYING].
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) [DEPLOYING].
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task 
ToKeyedWorkItem (1/1).
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (1/1) (26839259010a3f12ec2e94244ab2af7c) switched from CREATED 
to DEPLOYING.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Creating FileSystem stream leak safety net for task ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) [DEPLOYING]
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - Source: 
Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem 
(1/1) (d7106ffd00c5bc5448ec862504517d72) switched from DEPLOYING to RUNNING.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Loading JAR files for task ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) [DEPLOYING].
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72) switched from DEPLOYING to RUNNING.
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] 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)
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Registering task at network: ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) [DEPLOYING].
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) switched from 
DEPLOYING to RUNNING.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (1/1) (26839259010a3f12ec2e94244ab2af7c) switched from 
DEPLOYING to RUNNING.
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] 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-5] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) switched from 
DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Received task 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1).
[ToKeyedWorkItem (1/1)] 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-5] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) switched from DEPLOYING to RUNNING.
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) switched from DEPLOYING to RUNNING.
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 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-5] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) switched from DEPLOYING to RUNNING.
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) switched from DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) switched from DEPLOYING to RUNNING.
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - assert_that/Group/GroupByKey 
-> 42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) switched from CREATED to DEPLOYING.
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] 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)
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - Creating FileSystem stream 
leak safety net for task assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) [DEPLOYING]
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - Loading JAR files for task 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) [DEPLOYING].
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - Registering task at network: 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) [DEPLOYING].
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - assert_that/Group/GroupByKey 
-> 42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) switched from DEPLOYING to RUNNING.
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
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 - 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) switched from DEPLOYING to RUNNING.
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - Initializing 
heap keyed state backend with stream factory.
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] WARN org.apache.flink.metrics.MetricGroup - The 
operator name 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 exceeded the 80 characters length limit and was truncated.
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO 
org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - Initializing heap 
keyed state backend with stream factory.
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.state.heap.HeapKeyedStateBackend - Initializing heap 
keyed state backend with stream factory.
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] WARN 
org.apache.beam.runners.fnexecution.environment.DockerCommand - Unable to pull 
docker image jenkins-docker-apache.bintray.io/beam/python:latest, cause: 
Received exit code 1 for command 'docker pull 
jenkins-docker-apache.bintray.io/beam/python:latest'. stderr: Error response 
from daemon: unknown: Repo 'apache' was not found
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - GetManifest for 
/tmp/flinktesthcUpCS/job_32ddf70a-c0ad-4d53-953e-c7f5886d78b4/MANIFEST
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - Loading manifest for retrieval token 
/tmp/flinktesthcUpCS/job_32ddf70a-c0ad-4d53-953e-c7f5886d78b4/MANIFEST
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - Manifest at 
/tmp/flinktesthcUpCS/job_32ddf70a-c0ad-4d53-953e-c7f5886d78b4/MANIFEST has 0 
artifact locations
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - GetManifest for 
/tmp/flinktesthcUpCS/job_32ddf70a-c0ad-4d53-953e-c7f5886d78b4/MANIFEST -> 0 
artifacts
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.logging.GrpcLoggingService - Beam Fn 
Logging client connected.
[grpc-default-executor-1] INFO sdk_worker_main.main - Logging handler created.
[grpc-default-executor-1] INFO sdk_worker_main.start - Status HTTP server 
running at localhost:45989
[grpc-default-executor-1] INFO sdk_worker_main.main - 
semi_persistent_directory: /tmp
[grpc-default-executor-1] WARN sdk_worker_main._load_main_session - No session 
file found: /tmp/staged/pickled_main_session. Functions defined in __main__ 
(interactive session) may fail. 
[grpc-default-executor-1] INFO pipeline_options.get_all_options - Parsing 
unknown args: [u'--direct_runner_use_stacked_bundle', u'--options_id=20', 
u'--pipeline_type_check', u'--sdk_worker_parallelism=1']
[grpc-default-executor-1] INFO sdk_worker_main.main - Python sdk harness 
started with pipeline_options: {'runner': u'None', 'streaming': True, 
'experiments': [u'beam_fn_api'], 'sdk_location': u'container', 'flink_master': 
'[auto]', 'direct_runner_use_stacked_bundle': None, 'sdk_worker_parallelism': 
u'1', 'job_name': u'test_windowing_1542283927.23', 'options_id': u'20', 
'pipeline_type_check': None, 'parallelism': 1, 'job_endpoint': 
u'localhost:46707'}
[grpc-default-executor-1] INFO sdk_worker.__init__ - Creating insecure control 
channel.
[grpc-default-executor-1] INFO sdk_worker.__init__ - Control channel 
established.
[grpc-default-executor-1] INFO sdk_worker.__init__ - Initializing SDKHarness 
with 12 workers.
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.control.FnApiControlClientPoolService - 
Beam Fn Control client connected with id 1
[grpc-default-executor-1] INFO sdk_worker.create_state_handler - Creating 
channel for localhost:35235
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/write/ref_PCollection_PCollection_24:0:0 
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/write/ref_PCollection_PCollection_4:0 
[grpc-default-executor-0] INFO data_plane.create_data_channel - Creating 
channel for localhost:33909
[grpc-default-executor-0] INFO 
org.apache.beam.runners.fnexecution.data.GrpcDataService - Beam Fn Data client 
connected.
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/read/ref_PCollection_PCollection_1:0 
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/read/ref_PCollection_PCollection_17:0 
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/write/ref_PCollection_PCollection_12:0 
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/read/ref_PCollection_PCollection_7:0 
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) switched from RUNNING to FINISHED.
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for Source: 
Custom Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d).
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) [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 Source: Custom 
Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 
4f57431b7788b9c0a759d3f65ac2241d.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(4f57431b7788b9c0a759d3f65ac2241d) switched from RUNNING to FINISHED.
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - Source: 
Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem 
(1/1) (d7106ffd00c5bc5448ec862504517d72) switched from RUNNING to FINISHED.
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - Freeing 
task resources for Source: Custom Source -> 
14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72).
[Source: Custom Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> 
ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Ensuring all FileSystem streams are closed for task Source: Custom Source -> 
14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72) [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 Source: Custom 
Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem 
d7106ffd00c5bc5448ec862504517d72.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(d7106ffd00c5bc5448ec862504517d72) switched from RUNNING to FINISHED.
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) switched from 
RUNNING to FINISHED.
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Freeing task resources for 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4).
[Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Ensuring all FileSystem streams are closed for task 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) [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 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem fde566b70728c14f0c35eb285bb5a6c4.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem (1/1) (fde566b70728c14f0c35eb285bb5a6c4) switched from 
RUNNING to FINISHED.
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/write/ref_PCollection_PCollection_24:1:0 
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/read/ref_PCollection_PCollection_15:0 
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) switched from RUNNING to FINISHED.
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c).
[GroupByKey -> 24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) [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 GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 
e27d6536f21b5adebb0f9c7ab6db772c.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (1/1) (26839259010a3f12ec2e94244ab2af7c) switched from RUNNING 
to FINISHED.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Freeing task resources for ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c).
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Ensuring all FileSystem streams are closed for task ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) [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 ToKeyedWorkItem 
26839259010a3f12ec2e94244ab2af7c.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(e27d6536f21b5adebb0f9c7ab6db772c) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(26839259010a3f12ec2e94244ab2af7c) switched from RUNNING to FINISHED.
[grpc-default-executor-0] WARN bundle_processor.create_operation - No unique 
name set for transform fn/read/ref_PCollection_PCollection_27:0 
[grpc-default-executor-0] INFO sdk_worker.run - No more requests from control 
plane
[grpc-default-executor-0] INFO sdk_worker.run - SDK Harness waiting for 
in-flight requests to complete
[grpc-default-executor-0] INFO data_plane.close - Closing all cached grpc data 
channels.
[grpc-default-executor-0] INFO sdk_worker.close - Closing all cached gRPC state 
handlers.
[grpc-default-executor-0] WARN 
org.apache.beam.sdk.fn.data.BeamFnDataGrpcMultiplexer - Hanged up for unknown 
endpoint.
[grpc-default-executor-0] INFO sdk_worker.run - Done consuming work.
[grpc-default-executor-0] INFO sdk_worker_main.main - Python sdk harness 
exiting.
[grpc-default-executor-0] INFO 
org.apache.beam.runners.fnexecution.logging.GrpcLoggingService - Logging client 
hanged up.
Nov 15, 2018 12:12:10 PM 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.internal.SerializingExecutor run
SEVERE: Exception while executing runnable 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1Closed@31b9beaf
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.StatusRuntimeException: CANCELLED: 
call already cancelled
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.Status.asRuntimeException(Status.java:517)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.stub.ServerCalls$ServerCallStreamObserverImpl.onCompleted(ServerCalls.java:356)
        at 
org.apache.beam.runners.fnexecution.state.GrpcStateService$Inbound.onError(GrpcStateService.java:145)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onCancel(ServerCalls.java:269)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.PartialForwardingServerCallListener.onCancel(PartialForwardingServerCallListener.java:40)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.ForwardingServerCallListener.onCancel(ForwardingServerCallListener.java:23)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onCancel(ForwardingServerCallListener.java:40)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.Contexts$ContextualizedServerCallListener.onCancel(Contexts.java:96)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.closed(ServerCallImpl.java:293)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1Closed.runInContext(ServerImpl.java:738)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
        at 
org.apache.beam.vendor.grpc.v1_13_1.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)

[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
WARN org.apache.beam.sdk.fn.data.BeamFnDataGrpcMultiplexer - Hanged up for 
unknown endpoint.
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - assert_that/Group/GroupByKey 
-> 42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397) switched from RUNNING to FINISHED.
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(f2b16902ae3d8369f3124bcb83c95397).
[assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
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42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
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org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
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[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Stopping checkpoint 
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[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Stopping the JobMaster for job 
test_windowing_1542283927.23(e09b08773984b8646b87b22cf527ca71).
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Close JobManager 
connection for job e09b08773984b8646b87b22cf527ca71.
[flink-runner-job-server] INFO org.apache.flink.runtime.minicluster.MiniCluster 
- Shutting down Flink Mini Cluster
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org.apache.flink.runtime.jobmaster.JobMaster - Close ResourceManager connection 
ee53a93d80992939f7a61de4365643f6: JobManager is shutting down..
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nativeMemoryInMB=0, networkMemoryInMB=0}, allocationId: 
AllocationID{de74a2b1a2f469e86c2c0bb98af81f73}, jobId: 
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[flink-runner-job-server] INFO org.apache.beam.runners.flink.FlinkRunner - 
Execution finished in 2396 msecs
[flink-runner-job-server] INFO org.apache.beam.runners.flink.FlinkRunner - 
Final accumulator values:
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__metricscontainers : 
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INFO:root:Job state changed to DONE
.
----------------------------------------------------------------------
Ran 26 tests in 74.392s

OK (skipped=8)
:beam-sdks-python:flinkCompatibilityMatrixStreamingDOCKER (Thread[Task worker 
for ':' Thread 9,5,main]) completed. Took 1 mins 16.578 secs.

FAILURE: Build failed with an exception.

* Where:
Build file 
'<https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/ws/src/sdks/python/build.gradle'>
 line: 391

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

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

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

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

BUILD FAILED in 11m 54s
60 actionable tasks: 55 executed, 4 from cache, 1 up-to-date

Publishing build scan...
https://gradle.com/s/xvr35ckawfi6i

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

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