See 
<https://builds.apache.org/job/beam_PostCommit_Python_Verify/4474/display/redirect>

------------------------------------------
[...truncated 1.12 MB...]
            "shortValue": "CallableWrapperDoFn", 
            "type": "STRING", 
            "value": "apache_beam.transforms.core.CallableWrapperDoFn"
          }
        ], 
        "non_parallel_inputs": {}, 
        "output_info": [
          {
            "encoding": {
              "@type": "kind:windowed_value", 
              "component_encodings": [
                {
                  "@type": "kind:pair", 
                  "component_encodings": [
                    {
                      "@type": "kind:bytes"
                    }, 
                    {
                      "@type": 
"FastPrimitivesCoder$eNprYEpOLEhMzkiNT0pNzNVLzk9JLSqGUlxuicUlAUWZuZklmWWpxc4gQa5CBs3GQsbaQqZQ/vi0xJycpMTk7Hiw+kJmPEYFZCZn56RCjWABGsFaW8iWVJykBwDlGS3/",
 
                      "component_encodings": [
                        {
                          "@type": 
"FastPrimitivesCoder$eNprYEpOLEhMzkiNT0pNzNVLzk9JLSqGUlxuicUlAUWZuZklmWWpxc4gQa5CBs3GQsbaQqZQ/vi0xJycpMTk7Hiw+kJmPEYFZCZn56RCjWABGsFaW8iWVJykBwDlGS3/",
 
                          "component_encodings": []
                        }, 
                        {
                          "@type": 
"FastPrimitivesCoder$eNprYEpOLEhMzkiNT0pNzNVLzk9JLSqGUlxuicUlAUWZuZklmWWpxc4gQa5CBs3GQsbaQqZQ/vi0xJycpMTk7Hiw+kJmPEYFZCZn56RCjWABGsFaW8iWVJykBwDlGS3/",
 
                          "component_encodings": []
                        }
                      ], 
                      "is_pair_like": true
                    }
                  ], 
                  "is_pair_like": true
                }, 
                {
                  "@type": "kind:global_window"
                }
              ], 
              "is_wrapper": true
            }, 
            "output_name": "out", 
            "user_name": "write/Write/WriteImpl/FinalizeWrite/MapToVoidKey2.out"
          }
        ], 
        "parallel_input": {
          "@type": "OutputReference", 
          "output_name": "out", 
          "step_name": "s20"
        }, 
        "serialized_fn": "<string of 952 bytes>", 
        "user_name": "write/Write/WriteImpl/FinalizeWrite/MapToVoidKey2"
      }
    }
  ], 
  "type": "JOB_TYPE_BATCH"
}
root: INFO: Create job: <Job
 createTime: u'2018-03-21T15:27:59.224524Z'
 currentStateTime: u'1970-01-01T00:00:00Z'
 id: u'2018-03-21_08_27_57-9262512833116587506'
 location: u'us-central1'
 name: u'beamapp-jenkins-0321152756-466913'
 projectId: u'apache-beam-testing'
 stageStates: []
 steps: []
 tempFiles: []
 type: TypeValueValuesEnum(JOB_TYPE_BATCH, 1)>
root: INFO: Created job with id: [2018-03-21_08_27_57-9262512833116587506]
root: INFO: To access the Dataflow monitoring console, please navigate to 
https://console.cloud.google.com/dataflow/jobsDetail/locations/us-central1/jobs/2018-03-21_08_27_57-9262512833116587506?project=apache-beam-testing
root: INFO: Job 2018-03-21_08_27_57-9262512833116587506 is in state 
JOB_STATE_PENDING
root: INFO: 2018-03-21T15:27:57.941Z: JOB_MESSAGE_WARNING: Job 
2018-03-21_08_27_57-9262512833116587506 might autoscale up to 250 workers.
root: INFO: 2018-03-21T15:27:57.971Z: JOB_MESSAGE_DETAILED: Autoscaling is 
enabled for job 2018-03-21_08_27_57-9262512833116587506. The number of workers 
will be between 1 and 250.
root: INFO: 2018-03-21T15:27:58.003Z: JOB_MESSAGE_DETAILED: Autoscaling was 
automatically enabled for job 2018-03-21_08_27_57-9262512833116587506.
root: INFO: 2018-03-21T15:28:00.899Z: JOB_MESSAGE_DETAILED: Checking required 
Cloud APIs are enabled.
root: INFO: 2018-03-21T15:28:01.065Z: JOB_MESSAGE_DETAILED: Checking 
permissions granted to controller Service Account.
root: INFO: 2018-03-21T15:28:01.343Z: JOB_MESSAGE_DETAILED: Expanding 
CoGroupByKey operations into optimizable parts.
root: INFO: 2018-03-21T15:28:01.367Z: JOB_MESSAGE_DEBUG: Combiner lifting 
skipped for step write/Write/WriteImpl/GroupByKey: GroupByKey not followed by a 
combiner.
root: INFO: 2018-03-21T15:28:01.389Z: JOB_MESSAGE_DEBUG: Combiner lifting 
skipped for step group: GroupByKey not followed by a combiner.
root: INFO: 2018-03-21T15:28:01.411Z: JOB_MESSAGE_DETAILED: Expanding 
GroupByKey operations into optimizable parts.
root: INFO: 2018-03-21T15:28:01.435Z: JOB_MESSAGE_DETAILED: Lifting 
ValueCombiningMappingFns into MergeBucketsMappingFns
root: INFO: 2018-03-21T15:28:01.468Z: JOB_MESSAGE_DEBUG: Annotating graph with 
Autotuner information.
root: INFO: 2018-03-21T15:28:01.496Z: JOB_MESSAGE_DETAILED: Fusing adjacent 
ParDo, Read, Write, and Flatten operations
root: INFO: 2018-03-21T15:28:01.518Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/PreFinalize/MapToVoidKey1 into 
write/Write/WriteImpl/Extract
root: INFO: 2018-03-21T15:28:01.541Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/FinalizeWrite/MapToVoidKey1 into 
write/Write/WriteImpl/Extract
root: INFO: 2018-03-21T15:28:01.558Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/PreFinalize/MapToVoidKey1 into 
write/Write/WriteImpl/Extract
root: INFO: 2018-03-21T15:28:01.574Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/FinalizeWrite/MapToVoidKey1 into 
write/Write/WriteImpl/Extract
root: INFO: 2018-03-21T15:28:01.598Z: JOB_MESSAGE_DETAILED: Fusing consumer 
pair_with_one into split
root: INFO: 2018-03-21T15:28:01.621Z: JOB_MESSAGE_DETAILED: Fusing consumer 
group/Reify into pair_with_one
root: INFO: 2018-03-21T15:28:01.641Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/GroupByKey/Reify into 
write/Write/WriteImpl/WindowInto(WindowIntoFn)
root: INFO: 2018-03-21T15:28:01.660Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/WindowInto(WindowIntoFn) into write/Write/WriteImpl/Pair
root: INFO: 2018-03-21T15:28:01.672Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/WriteBundles/WriteBundles into format
root: INFO: 2018-03-21T15:28:01.685Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/Pair into write/Write/WriteImpl/WriteBundles/WriteBundles
root: INFO: 2018-03-21T15:28:01.704Z: JOB_MESSAGE_DETAILED: Fusing consumer 
split into read/Read
root: INFO: 2018-03-21T15:28:01.726Z: JOB_MESSAGE_DETAILED: Fusing consumer 
count into group/GroupByWindow
root: INFO: 2018-03-21T15:28:01.738Z: JOB_MESSAGE_DETAILED: Fusing consumer 
format into count
root: INFO: 2018-03-21T15:28:01.763Z: JOB_MESSAGE_DETAILED: Fusing consumer 
group/Write into group/Reify
root: INFO: 2018-03-21T15:28:01.774Z: JOB_MESSAGE_DETAILED: Fusing consumer 
group/GroupByWindow into group/Read
root: INFO: 2018-03-21T15:28:01.795Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/Extract into 
write/Write/WriteImpl/GroupByKey/GroupByWindow
root: INFO: 2018-03-21T15:28:01.817Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/GroupByKey/Write into 
write/Write/WriteImpl/GroupByKey/Reify
root: INFO: 2018-03-21T15:28:01.834Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/GroupByKey/GroupByWindow into 
write/Write/WriteImpl/GroupByKey/Read
root: INFO: 2018-03-21T15:28:01.857Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/PreFinalize/MapToVoidKey0 into 
write/Write/WriteImpl/InitializeWrite
root: INFO: 2018-03-21T15:28:01.869Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/FinalizeWrite/MapToVoidKey0 into 
write/Write/WriteImpl/InitializeWrite
root: INFO: 2018-03-21T15:28:01.906Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/WriteBundles/MapToVoidKey0 into 
write/Write/WriteImpl/InitializeWrite
root: INFO: 2018-03-21T15:28:01.946Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/PreFinalize/MapToVoidKey0 into 
write/Write/WriteImpl/InitializeWrite
root: INFO: 2018-03-21T15:28:01.970Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/FinalizeWrite/MapToVoidKey0 into 
write/Write/WriteImpl/InitializeWrite
root: INFO: 2018-03-21T15:28:01.989Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/WriteBundles/MapToVoidKey0 into 
write/Write/WriteImpl/InitializeWrite
root: INFO: 2018-03-21T15:28:02.010Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/InitializeWrite into write/Write/WriteImpl/DoOnce/Read
root: INFO: 2018-03-21T15:28:02.030Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/FinalizeWrite/MapToVoidKey2 into 
write/Write/WriteImpl/PreFinalize/PreFinalize
root: INFO: 2018-03-21T15:28:02.058Z: JOB_MESSAGE_DETAILED: Fusing consumer 
write/Write/WriteImpl/FinalizeWrite/MapToVoidKey2 into 
write/Write/WriteImpl/PreFinalize/PreFinalize
root: INFO: 2018-03-21T15:28:02.082Z: JOB_MESSAGE_DEBUG: Workflow config is 
missing a default resource spec.
root: INFO: 2018-03-21T15:28:02.102Z: JOB_MESSAGE_DEBUG: Adding StepResource 
setup and teardown to workflow graph.
root: INFO: 2018-03-21T15:28:02.122Z: JOB_MESSAGE_DEBUG: Adding workflow start 
and stop steps.
root: INFO: 2018-03-21T15:28:02.143Z: JOB_MESSAGE_DEBUG: Assigning stage ids.
root: INFO: 2018-03-21T15:28:02.253Z: JOB_MESSAGE_DEBUG: Executing wait step 
start26
root: INFO: 2018-03-21T15:28:02.297Z: JOB_MESSAGE_BASIC: Executing operation 
write/Write/WriteImpl/DoOnce/Read+write/Write/WriteImpl/InitializeWrite+write/Write/WriteImpl/PreFinalize/MapToVoidKey0+write/Write/WriteImpl/FinalizeWrite/MapToVoidKey0+write/Write/WriteImpl/WriteBundles/MapToVoidKey0+write/Write/WriteImpl/PreFinalize/MapToVoidKey0+write/Write/WriteImpl/FinalizeWrite/MapToVoidKey0+write/Write/WriteImpl/WriteBundles/MapToVoidKey0
root: INFO: 2018-03-21T15:28:02.320Z: JOB_MESSAGE_BASIC: Executing operation 
write/Write/WriteImpl/GroupByKey/Create
root: INFO: 2018-03-21T15:28:02.332Z: JOB_MESSAGE_DEBUG: Starting worker pool 
setup.
root: INFO: 2018-03-21T15:28:02.342Z: JOB_MESSAGE_BASIC: Executing operation 
group/Create
root: INFO: 2018-03-21T15:28:02.356Z: JOB_MESSAGE_BASIC: Starting 1 workers in 
us-central1-f...
root: INFO: Job 2018-03-21_08_27_57-9262512833116587506 is in state 
JOB_STATE_RUNNING
root: INFO: 2018-03-21T15:28:11.963Z: JOB_MESSAGE_DETAILED: Autoscaling: Raised 
the number of workers to 0 based on the rate of progress in the currently 
running step(s).
root: INFO: 2018-03-21T15:28:12.128Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/GroupByKey/Session" materialized.
root: INFO: 2018-03-21T15:28:12.149Z: JOB_MESSAGE_DEBUG: Value "group/Session" 
materialized.
root: INFO: 2018-03-21T15:28:12.196Z: JOB_MESSAGE_BASIC: Executing operation 
read/Read+split+pair_with_one+group/Reify+group/Write
root: INFO: 2018-03-21T15:28:17.286Z: JOB_MESSAGE_BASIC: Autoscaling: Resizing 
worker pool from 1 to 2.
root: INFO: 2018-03-21T15:28:29.503Z: JOB_MESSAGE_DETAILED: Autoscaling: Raised 
the number of workers to 1 based on the rate of progress in the currently 
running step(s).
root: INFO: 2018-03-21T15:28:29.523Z: JOB_MESSAGE_DETAILED: Resized worker pool 
to 1, though goal was 2.  This could be a quota issue.
root: INFO: 2018-03-21T15:28:41.729Z: JOB_MESSAGE_DETAILED: Workers have 
started successfully.
root: INFO: 2018-03-21T15:28:45.360Z: JOB_MESSAGE_DETAILED: Autoscaling: Raised 
the number of workers to 2 based on the rate of progress in the currently 
running step(s).
root: INFO: 2018-03-21T15:32:48.319Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/DoOnce/Read.out" materialized.
root: INFO: 2018-03-21T15:32:48.339Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/PreFinalize/MapToVoidKey0.out" materialized.
root: INFO: 2018-03-21T15:32:48.352Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/FinalizeWrite/MapToVoidKey0.out" materialized.
root: INFO: 2018-03-21T15:32:48.374Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/WriteBundles/MapToVoidKey0.out" materialized.
root: INFO: 2018-03-21T15:32:48.394Z: JOB_MESSAGE_BASIC: Executing operation 
write/Write/WriteImpl/PreFinalize/_DataflowIterableSideInput(MapToVoidKey0.out.0)
root: INFO: 2018-03-21T15:32:48.417Z: JOB_MESSAGE_BASIC: Executing operation 
write/Write/WriteImpl/FinalizeWrite/_DataflowIterableSideInput(MapToVoidKey0.out.0)
root: INFO: 2018-03-21T15:32:48.438Z: JOB_MESSAGE_BASIC: Executing operation 
write/Write/WriteImpl/WriteBundles/_DataflowIterableSideInput(MapToVoidKey0.out.0)
root: INFO: 2018-03-21T15:32:48.471Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/PreFinalize/_DataflowIterableSideInput(MapToVoidKey0.out.0).output"
 materialized.
root: INFO: 2018-03-21T15:32:48.530Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/FinalizeWrite/_DataflowIterableSideInput(MapToVoidKey0.out.0).output"
 materialized.
root: INFO: 2018-03-21T15:32:48.552Z: JOB_MESSAGE_DEBUG: Value 
"write/Write/WriteImpl/WriteBundles/_DataflowIterableSideInput(MapToVoidKey0.out.0).output"
 materialized.
root: INFO: 2018-03-21T15:32:58.112Z: JOB_MESSAGE_BASIC: Executing operation 
group/Close
root: INFO: 2018-03-21T15:32:58.150Z: JOB_MESSAGE_BASIC: Executing operation 
group/Read+group/GroupByWindow+count+format+write/Write/WriteImpl/WriteBundles/WriteBundles+write/Write/WriteImpl/Pair+write/Write/WriteImpl/WindowInto(WindowIntoFn)+write/Write/WriteImpl/GroupByKey/Reify+write/Write/WriteImpl/GroupByKey/Write
root: INFO: 2018-03-21T15:33:01.528Z: JOB_MESSAGE_ERROR: Traceback (most recent 
call last):
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/batchworker.py", 
line 609, in do_work
    work_executor.execute()
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/executor.py", 
line 167, in execute
    op.start()
  File "apache_beam/runners/worker/operations.py", line 340, in 
apache_beam.runners.worker.operations.DoOperation.start
    def start(self):
  File "apache_beam/runners/worker/operations.py", line 341, in 
apache_beam.runners.worker.operations.DoOperation.start
    with self.scoped_start_state:
  File "apache_beam/runners/worker/operations.py", line 373, in 
apache_beam.runners.worker.operations.DoOperation.start
    self.dofn_runner = common.DoFnRunner(
  File "apache_beam/runners/common.py", line 483, in 
apache_beam.runners.common.DoFnRunner.__init__
    self.do_fn_invoker = DoFnInvoker.create_invoker(
  File "apache_beam/runners/common.py", line 203, in 
apache_beam.runners.common.DoFnInvoker.create_invoker
    return PerWindowInvoker(
  File "apache_beam/runners/common.py", line 313, in 
apache_beam.runners.common.PerWindowInvoker.__init__
    input_args, input_kwargs, [si[global_window] for si in side_inputs])
  File 
"/usr/local/lib/python2.7/dist-packages/apache_beam/transforms/sideinputs.py", 
line 62, in __getitem__
    self._cache[window] = self._view_class._from_runtime_iterable(
AttributeError: type object '_DataflowIterableSideInput' has no attribute 
'_from_runtime_iterable'

root: INFO: 2018-03-21T15:33:04.915Z: JOB_MESSAGE_ERROR: Traceback (most recent 
call last):
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/batchworker.py", 
line 609, in do_work
    work_executor.execute()
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/executor.py", 
line 167, in execute
    op.start()
  File "apache_beam/runners/worker/operations.py", line 340, in 
apache_beam.runners.worker.operations.DoOperation.start
    def start(self):
  File "apache_beam/runners/worker/operations.py", line 341, in 
apache_beam.runners.worker.operations.DoOperation.start
    with self.scoped_start_state:
  File "apache_beam/runners/worker/operations.py", line 373, in 
apache_beam.runners.worker.operations.DoOperation.start
    self.dofn_runner = common.DoFnRunner(
  File "apache_beam/runners/common.py", line 483, in 
apache_beam.runners.common.DoFnRunner.__init__
    self.do_fn_invoker = DoFnInvoker.create_invoker(
  File "apache_beam/runners/common.py", line 203, in 
apache_beam.runners.common.DoFnInvoker.create_invoker
    return PerWindowInvoker(
  File "apache_beam/runners/common.py", line 313, in 
apache_beam.runners.common.PerWindowInvoker.__init__
    input_args, input_kwargs, [si[global_window] for si in side_inputs])
  File 
"/usr/local/lib/python2.7/dist-packages/apache_beam/transforms/sideinputs.py", 
line 62, in __getitem__
    self._cache[window] = self._view_class._from_runtime_iterable(
AttributeError: type object '_DataflowIterableSideInput' has no attribute 
'_from_runtime_iterable'

root: INFO: 2018-03-21T15:33:08.299Z: JOB_MESSAGE_ERROR: Traceback (most recent 
call last):
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/batchworker.py", 
line 609, in do_work
    work_executor.execute()
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/executor.py", 
line 167, in execute
    op.start()
  File "apache_beam/runners/worker/operations.py", line 340, in 
apache_beam.runners.worker.operations.DoOperation.start
    def start(self):
  File "apache_beam/runners/worker/operations.py", line 341, in 
apache_beam.runners.worker.operations.DoOperation.start
    with self.scoped_start_state:
  File "apache_beam/runners/worker/operations.py", line 373, in 
apache_beam.runners.worker.operations.DoOperation.start
    self.dofn_runner = common.DoFnRunner(
  File "apache_beam/runners/common.py", line 483, in 
apache_beam.runners.common.DoFnRunner.__init__
    self.do_fn_invoker = DoFnInvoker.create_invoker(
  File "apache_beam/runners/common.py", line 203, in 
apache_beam.runners.common.DoFnInvoker.create_invoker
    return PerWindowInvoker(
  File "apache_beam/runners/common.py", line 313, in 
apache_beam.runners.common.PerWindowInvoker.__init__
    input_args, input_kwargs, [si[global_window] for si in side_inputs])
  File 
"/usr/local/lib/python2.7/dist-packages/apache_beam/transforms/sideinputs.py", 
line 62, in __getitem__
    self._cache[window] = self._view_class._from_runtime_iterable(
AttributeError: type object '_DataflowIterableSideInput' has no attribute 
'_from_runtime_iterable'

root: INFO: 2018-03-21T15:33:11.683Z: JOB_MESSAGE_ERROR: Traceback (most recent 
call last):
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/batchworker.py", 
line 609, in do_work
    work_executor.execute()
  File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/executor.py", 
line 167, in execute
    op.start()
  File "apache_beam/runners/worker/operations.py", line 340, in 
apache_beam.runners.worker.operations.DoOperation.start
    def start(self):
  File "apache_beam/runners/worker/operations.py", line 341, in 
apache_beam.runners.worker.operations.DoOperation.start
    with self.scoped_start_state:
  File "apache_beam/runners/worker/operations.py", line 373, in 
apache_beam.runners.worker.operations.DoOperation.start
    self.dofn_runner = common.DoFnRunner(
  File "apache_beam/runners/common.py", line 483, in 
apache_beam.runners.common.DoFnRunner.__init__
    self.do_fn_invoker = DoFnInvoker.create_invoker(
  File "apache_beam/runners/common.py", line 203, in 
apache_beam.runners.common.DoFnInvoker.create_invoker
    return PerWindowInvoker(
  File "apache_beam/runners/common.py", line 313, in 
apache_beam.runners.common.PerWindowInvoker.__init__
    input_args, input_kwargs, [si[global_window] for si in side_inputs])
  File 
"/usr/local/lib/python2.7/dist-packages/apache_beam/transforms/sideinputs.py", 
line 62, in __getitem__
    self._cache[window] = self._view_class._from_runtime_iterable(
AttributeError: type object '_DataflowIterableSideInput' has no attribute 
'_from_runtime_iterable'

root: INFO: 2018-03-21T15:33:11.727Z: JOB_MESSAGE_DEBUG: Executing failure step 
failure25
root: INFO: 2018-03-21T15:33:11.761Z: JOB_MESSAGE_ERROR: Workflow failed. 
Causes: 
S08:group/Read+group/GroupByWindow+count+format+write/Write/WriteImpl/WriteBundles/WriteBundles+write/Write/WriteImpl/Pair+write/Write/WriteImpl/WindowInto(WindowIntoFn)+write/Write/WriteImpl/GroupByKey/Reify+write/Write/WriteImpl/GroupByKey/Write
 failed., A work item was attempted 4 times without success. Each time the 
worker eventually lost contact with the service. The work item was attempted 
on: 
  beamapp-jenkins-032115275-03210827-4ee9-harness-2xvq,
  beamapp-jenkins-032115275-03210827-4ee9-harness-2xvq,
  beamapp-jenkins-032115275-03210827-4ee9-harness-2xvq,
  beamapp-jenkins-032115275-03210827-4ee9-harness-2xvq
root: INFO: 2018-03-21T15:33:11.880Z: JOB_MESSAGE_DETAILED: Cleaning up.
root: INFO: 2018-03-21T15:33:11.921Z: JOB_MESSAGE_DEBUG: Starting worker pool 
teardown.
root: INFO: 2018-03-21T15:33:11.955Z: JOB_MESSAGE_BASIC: Stopping worker pool...
root: INFO: 2018-03-21T15:35:10.804Z: JOB_MESSAGE_DETAILED: Autoscaling: 
Reduced the number of workers to 0 based on the rate of progress in the 
currently running step(s).
root: INFO: 2018-03-21T15:35:11.150Z: JOB_MESSAGE_DEBUG: Tearing down pending 
resources...
root: INFO: Job 2018-03-21_08_27_57-9262512833116587506 is in state 
JOB_STATE_FAILED
--------------------- >> end captured logging << ---------------------

----------------------------------------------------------------------
Ran 3 tests in 473.671s

FAILED (errors=1)
Found: 
https://console.cloud.google.com/dataflow/jobsDetail/locations/us-central1/jobs/2018-03-21_08_27_57-13973811041455737982?project=apache-beam-testing
Found: 
https://console.cloud.google.com/dataflow/jobsDetail/locations/us-central1/jobs/2018-03-21_08_27_56-17308336187412854497?project=apache-beam-testing
Found: 
https://console.cloud.google.com/dataflow/jobsDetail/locations/us-central1/jobs/2018-03-21_08_27_57-9262512833116587506?project=apache-beam-testing
Build step 'Execute shell' marked build as failure
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