See 
<https://builds.apache.org/job/beam_PostCommit_Python_VR_Flink/549/display/redirect>

------------------------------------------
[...truncated 4.46 MB...]
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Submitting job 
50aed59618cde9587a92208a4cc20057 (test_windowing_1540815016.56).
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.rpc.akka.AkkaRpcService - Starting RPC endpoint for 
org.apache.flink.runtime.jobmaster.JobMaster at akka://flink/user/jobmanager_41 
.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Initializing job 
test_windowing_1540815016.56 (50aed59618cde9587a92208a4cc20057).
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Using restart strategy 
NoRestartStrategy for test_windowing_1540815016.56 
(50aed59618cde9587a92208a4cc20057).
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.rpc.akka.AkkaRpcService - Starting RPC endpoint for 
org.apache.flink.runtime.jobmaster.slotpool.SlotPool at 
akka://flink/user/e715b906-a565-4d5b-85d7-78b097cb20cc .
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Job recovers via 
failover strategy: full graph restart
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Running initialization on master 
for job test_windowing_1540815016.56 (50aed59618cde9587a92208a4cc20057).
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Successfully ran initialization 
on master in 0 ms.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - 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-3] INFO 
org.apache.flink.runtime.highavailability.nonha.embedded.EmbeddedLeaderService 
- Proposing leadership to contender 
org.apache.flink.runtime.jobmaster.JobManagerRunner@3ee89e09 @ 
akka://flink/user/jobmanager_41
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.jobmaster.JobManagerRunner - JobManager runner for job 
test_windowing_1540815016.56 (50aed59618cde9587a92208a4cc20057) was granted 
leadership with session id fbb4de8d-5b6b-436d-b146-dbfc4cb61020 at 
akka://flink/user/jobmanager_41.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Starting execution of job 
test_windowing_1540815016.56 (50aed59618cde9587a92208a4cc20057)
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Job 
test_windowing_1540815016.56 (50aed59618cde9587a92208a4cc20057) switched from 
state CREATED to RUNNING.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(0ce715a597c1253a62addfd9af3d46c6) switched from CREATED to SCHEDULED.
[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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) 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{aa89fcbcf57b12ed1328bacd2f310a52}]
[flink-akka.actor.default-dispatcher-2] 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) (a1f5fb7e414945b3b1d57ac1122d421a) switched from 
CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(44e2356d30ae77f8121117f6c81354b4) switched from CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(b2285a6fc34f690b034a442fe640974d) switched from CREATED to SCHEDULED.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(0f45a8615c91f231d9755b253856a337) switched from CREATED to SCHEDULED.
[jobmanager-future-thread-1] INFO 
org.apache.flink.runtime.highavailability.nonha.embedded.EmbeddedLeaderService 
- Received confirmation of leadership for leader 
akka://flink/user/jobmanager_41 , session=fbb4de8d-5b6b-436d-b146-dbfc4cb61020
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Connecting to ResourceManager 
akka://flink/user/resourcemanager_c5e3e328-79d0-4fe6-84c9-5bf5f4903b12(baccae87f7f0cc9e643b919ce0b64854)
[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-2] INFO 
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - 
Registering job manager 
b146dbfc4cb61020fbb4de8d5b6b436d@akka://flink/user/jobmanager_41 for job 
50aed59618cde9587a92208a4cc20057.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Registered 
job manager b146dbfc4cb61020fbb4de8d5b6b436d@akka://flink/user/jobmanager_41 
for job 50aed59618cde9587a92208a4cc20057.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - JobManager successfully 
registered at ResourceManager, leader id: baccae87f7f0cc9e643b919ce0b64854.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Requesting new slot 
[SlotRequestId{aa89fcbcf57b12ed1328bacd2f310a52}] and profile 
ResourceProfile{cpuCores=-1.0, heapMemoryInMB=-1, directMemoryInMB=0, 
nativeMemoryInMB=0, networkMemoryInMB=0} from resource manager.
[flink-akka.actor.default-dispatcher-2] 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 
50aed59618cde9587a92208a4cc20057 with allocation id 
AllocationID{21da9fab65fa33475141277b71892deb}.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Receive slot request 
AllocationID{21da9fab65fa33475141277b71892deb} for job 
50aed59618cde9587a92208a4cc20057 from resource manager with leader id 
baccae87f7f0cc9e643b919ce0b64854.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Allocated slot for 
AllocationID{21da9fab65fa33475141277b71892deb}.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Add job 
50aed59618cde9587a92208a4cc20057 for job leader monitoring.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.taskexecutor.JobLeaderService - Try to register at job 
manager akka://flink/user/jobmanager_41 with leader id 
fbb4de8d-5b6b-436d-b146-dbfc4cb61020.
[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_41 for job 
50aed59618cde9587a92208a4cc20057.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Establish JobManager 
connection for job 50aed59618cde9587a92208a4cc20057.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Offer reserved slots to 
the leader of job 50aed59618cde9587a92208a4cc20057.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Activate slot 
AllocationID{21da9fab65fa33475141277b71892deb}.
[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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-4] 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-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(0ce715a597c1253a62addfd9af3d46c6) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-4] 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-4] 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) (a1f5fb7e414945b3b1d57ac1122d421a) switched from 
SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-4] 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-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(44e2356d30ae77f8121117f6c81354b4) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-4] 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-3] 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-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(b2285a6fc34f690b034a442fe640974d) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying 
ToKeyedWorkItem (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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) 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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) [DEPLOYING]
[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) 
(0f45a8615c91f231d9755b253856a337) switched from SCHEDULED to DEPLOYING.
[flink-akka.actor.default-dispatcher-4] 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 - Loading JAR files for task Source: 
Custom Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) [DEPLOYING].
[flink-akka.actor.default-dispatcher-3] 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) (eb04f9cc04fbcc515bf7b57cf8b0bd9b) [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) (0ce715a597c1253a62addfd9af3d46c6) 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) 
(0ce715a597c1253a62addfd9af3d46c6) [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) 
(0ce715a597c1253a62addfd9af3d46c6) [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) 
(0ce715a597c1253a62addfd9af3d46c6) [DEPLOYING].
[flink-akka.actor.default-dispatcher-3] 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) (a1f5fb7e414945b3b1d57ac1122d421a) 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) (a1f5fb7e414945b3b1d57ac1122d421a) [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) (a1f5fb7e414945b3b1d57ac1122d421a) [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) (a1f5fb7e414945b3b1d57ac1122d421a) [DEPLOYING].
[flink-akka.actor.default-dispatcher-3] 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) 
(44e2356d30ae77f8121117f6c81354b4) 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) 
(44e2356d30ae77f8121117f6c81354b4) [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) 
(44e2356d30ae77f8121117f6c81354b4) [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) 
(44e2356d30ae77f8121117f6c81354b4) [DEPLOYING].
[flink-akka.actor.default-dispatcher-3] 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) (b2285a6fc34f690b034a442fe640974d) 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) 
(b2285a6fc34f690b034a442fe640974d) [DEPLOYING]
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Loading JAR files for task ToKeyedWorkItem (1/1) 
(b2285a6fc34f690b034a442fe640974d) [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) (a1f5fb7e414945b3b1d57ac1122d421a) switched from 
DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-2] 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) (a1f5fb7e414945b3b1d57ac1122d421a) switched from 
DEPLOYING to RUNNING.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Registering task at network: ToKeyedWorkItem (1/1) 
(b2285a6fc34f690b034a442fe640974d) [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.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)
[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) 
(44e2356d30ae77f8121117f6c81354b4) 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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) switched from DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-3] 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).
[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)
[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)
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(44e2356d30ae77f8121117f6c81354b4) 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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) switched from DEPLOYING to RUNNING.
[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) (0ce715a597c1253a62addfd9af3d46c6) 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) 
(0f45a8615c91f231d9755b253856a337) switched from CREATED to 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 - 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) 
(0f45a8615c91f231d9755b253856a337) [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) 
(0f45a8615c91f231d9755b253856a337) [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) 
(0ce715a597c1253a62addfd9af3d46c6) 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)
[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) 
(0f45a8615c91f231d9755b253856a337) [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) 
(0f45a8615c91f231d9755b253856a337) switched from DEPLOYING to RUNNING.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(0f45a8615c91f231d9755b253856a337) 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)
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (1/1) (b2285a6fc34f690b034a442fe640974d) switched from 
DEPLOYING to RUNNING.
[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) 
(b2285a6fc34f690b034a442fe640974d) 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.
[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.
[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.
[Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (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/flinktestrQdI5c/job_3366f156-45b9-44d4-bb28-998a3cee57e5/MANIFEST
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - Loading manifest for retrieval token 
/tmp/flinktestrQdI5c/job_3366f156-45b9-44d4-bb28-998a3cee57e5/MANIFEST
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - Manifest at 
/tmp/flinktestrQdI5c/job_3366f156-45b9-44d4-bb28-998a3cee57e5/MANIFEST has 0 
artifact locations
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - GetManifest for 
/tmp/flinktestrQdI5c/job_3366f156-45b9-44d4-bb28-998a3cee57e5/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:42747
[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=21', 
u'--pipeline_type_check', u'--sdk_worker_parallelism=pipeline']
[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'pipeline', 'job_name': u'test_windowing_1540815016.56', 'options_id': u'21', 
'pipeline_type_check': None, 'parallelism': 1, 'job_endpoint': 
u'localhost:55481'}
[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:36381
[grpc-default-executor-1] WARN bundle_processor.create_operation - No unique 
name set for transform fn/write/ref_PCollection_PCollection_4:0 
[grpc-default-executor-1] WARN bundle_processor.create_operation - No unique 
name set for transform fn/write/ref_PCollection_PCollection_24:0:0 
[grpc-default-executor-1] INFO data_plane.create_data_channel - Creating 
channel for localhost:35367
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.data.GrpcDataService - Beam Fn Data client 
connected.
[grpc-default-executor-1] WARN bundle_processor.create_operation - No unique 
name set for transform fn/read/ref_PCollection_PCollection_17:0 
[grpc-default-executor-1] 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/write/ref_PCollection_PCollection_12:0 
[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) (0ce715a597c1253a62addfd9af3d46c6) 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) 
(0ce715a597c1253a62addfd9af3d46c6).
[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) 
(0ce715a597c1253a62addfd9af3d46c6) [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 Source: Custom 
Source -> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem 
0ce715a597c1253a62addfd9af3d46c6.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source 
-> 14Create/Impulse.None/beam:env:docker:v1:0 -> ToKeyedWorkItem (1/1) 
(0ce715a597c1253a62addfd9af3d46c6) 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 - Source: Custom Source -> 
26assert_that/Create/Impulse.None/beam:env:docker:v1:0 (1/1) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) 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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b).
[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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) [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 Source: Custom 
Source -> 26assert_that/Create/Impulse.None/beam:env:docker:v1:0 
eb04f9cc04fbcc515bf7b57cf8b0bd9b.
[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) 
(eb04f9cc04fbcc515bf7b57cf8b0bd9b) 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_7:0 
[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) (a1f5fb7e414945b3b1d57ac1122d421a) 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) (a1f5fb7e414945b3b1d57ac1122d421a).
[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) (a1f5fb7e414945b3b1d57ac1122d421a) [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 
Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey -> 
72Create/MaybeReshuffle/Reshuffle/ReshufflePerKey/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0
 -> ToKeyedWorkItem a1f5fb7e414945b3b1d57ac1122d421a.
[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) (a1f5fb7e414945b3b1d57ac1122d421a) 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) 
(44e2356d30ae77f8121117f6c81354b4) 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) 
(44e2356d30ae77f8121117f6c81354b4).
[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) 
(44e2356d30ae77f8121117f6c81354b4) [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 
44e2356d30ae77f8121117f6c81354b4.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (1/1) (b2285a6fc34f690b034a442fe640974d) switched from RUNNING 
to FINISHED.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Freeing task resources for ToKeyedWorkItem (1/1) 
(b2285a6fc34f690b034a442fe640974d).
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Ensuring all FileSystem streams are closed for task ToKeyedWorkItem (1/1) 
(b2285a6fc34f690b034a442fe640974d) [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 
b2285a6fc34f690b034a442fe640974d.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
24GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(44e2356d30ae77f8121117f6c81354b4) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(b2285a6fc34f690b034a442fe640974d) 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] WARN 
org.apache.beam.sdk.fn.data.BeamFnDataGrpcMultiplexer - Hanged up for unknown 
endpoint.
[grpc-default-executor-1] INFO data_plane.close - Closing all cached grpc data 
channels.
[grpc-default-executor-1] INFO sdk_worker.close - Closing all cached gRPC state 
handlers.
[grpc-default-executor-1] INFO sdk_worker.run - Done consuming work.
[grpc-default-executor-1] INFO sdk_worker_main.main - Python sdk harness 
exiting.
[grpc-default-executor-1] INFO 
org.apache.beam.runners.fnexecution.logging.GrpcLoggingService - Logging client 
hanged up.
[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) 
(0f45a8615c91f231d9755b253856a337) 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) 
(0f45a8615c91f231d9755b253856a337).
[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 
streams are closed for task assert_that/Group/GroupByKey -> 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:docker:v1:0 (1/1) 
(0f45a8615c91f231d9755b253856a337) [FINISHED]
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.
----------------------------------------------------------------------
Ran 26 tests in 73.762s

OK (skipped=7)
:beam-sdks-python:flinkCompatibilityMatrixStreamingDOCKER (Thread[Task worker 
for ':' Thread 9,5,main]) completed. Took 1 mins 15.706 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: 378

* What went wrong:
Execution failed for task 
':beam-sdks-python:flinkCompatibilityMatrixBatchDOCKER'.
> Process 'command 'sh'' finished with non-zero exit value 139

* 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 10m 9s
60 actionable tasks: 55 executed, 4 from cache, 1 up-to-date

Publishing build scan...
https://gradle.com/s/pjghzvxyfn6am

Build cache (/home/jenkins/.gradle/caches/build-cache-1) removing files not 
accessed on or after Mon Oct 22 12:00:17 UTC 2018.
Cache entries evicted. In-memory cache of 
/home/jenkins/.gradle/caches/journal-1/file-access.bin: Size{4286} 
MaxSize{4500}, CacheStats{hitCount=10, missCount=4253, loadSuccessCount=4254, 
loadExceptionCount=0, totalLoadTime=251996665, evictionCount=1} 
Performance may suffer from in-memory cache misses. Increase max heap size of 
Gradle build process to reduce cache misses.
Cache entries evicted. In-memory cache of 
/home/jenkins/.gradle/caches/journal-1/file-access.bin: Size{4500} 
MaxSize{4500}, CacheStats{hitCount=10, missCount=4917, loadSuccessCount=4918, 
loadExceptionCount=0, totalLoadTime=293391749, evictionCount=451} 
Performance may suffer from in-memory cache misses. Increase max heap size of 
Gradle build process to reduce cache misses.
Cache entries evicted. In-memory cache of 
/home/jenkins/.gradle/caches/journal-1/file-access.bin: Size{4500} 
MaxSize{4500}, CacheStats{hitCount=10, missCount=5367, loadSuccessCount=5368, 
loadExceptionCount=0, totalLoadTime=325386127, evictionCount=901} 
Performance may suffer from in-memory cache misses. Increase max heap size of 
Gradle build process to reduce cache misses.
Build cache (/home/jenkins/.gradle/caches/build-cache-1) cleaned up in 0.493 
secs.
Build step 'Invoke Gradle script' changed build result to FAILURE
Build step 'Invoke Gradle script' marked build as failure

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