See 
<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/574/display/redirect?page=changes>

Changes:

[kcweaver] [BEAM-7131] cache executable stage output to prevent re-computation

[kcweaver] Spark portable runner: cache all re-used RDDs by default

[kcweaver] refactor to use pushDataset everywhere

------------------------------------------
[...truncated 19.91 MB...]
[Source: Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:ptransform_execution_time:total_msecs:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, 
[1]Create/FlatMap(<lambda at core.py:2254>), 0]
[Source: Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 
'beam.metric:pardo_execution_time:process_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [1]Create/FlatMap(<lambda at core.py:2254>), 0]
[Source: Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:sampled_byte_size:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [1]Create/FlatMap(<lambda at core.py:2254>), 0]
WARNING:root:No unique name set for transform 
fn/read/ref_PCollection_PCollection_17:0
[Source: Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Source: Impulse -> 
[1]Create/FlatMap(<lambda at core.py:2254>) (1/1) 
(d319fe58cce44688634c2816726cd060) switched from RUNNING to FINISHED.
[Source: Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for Source: 
Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) (1/1) 
(d319fe58cce44688634c2816726cd060).
[Source: Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task Source: Impulse -> [1]Create/FlatMap(<lambda at core.py:2254>) 
(1/1) (d319fe58cce44688634c2816726cd060) [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 Source: Impulse 
-> [1]Create/FlatMap(<lambda at core.py:2254>) d319fe58cce44688634c2816726cd060.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Impulse -> 
[1]Create/FlatMap(<lambda at core.py:2254>) (1/1) 
(d319fe58cce44688634c2816726cd060) switched from RUNNING to FINISHED.
WARNING:root:No unique name set for transform 
fn/write/ref_PCollection_PCollection_12:0
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:ptransform_execution_time:total_msecs:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, 
[4]assert_that/{Create, Group}, 0]
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 
'beam.metric:pardo_execution_time:process_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [4]assert_that/{Create, Group}, 0]
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:pardo_execution_time:start_bundle_msecs:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, 
[4]assert_that/{Create, Group}, 0]
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:pardo_execution_time:finish_bundle_msecs:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, 
[4]assert_that/{Create, Group}, 0]
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:element_count:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [4]assert_that/{Create, Group}, 0]
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:sampled_byte_size:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [4]assert_that/{Create, Group}, 0]
WARNING:root:No unique name set for transform 
fn/read/ref_PCollection_PCollection_9:0
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Source: Impulse -> 
[4]assert_that/{Create, Group} (1/1) (5669f07f17dfc835abcaf5c94b2c0906) 
switched from RUNNING to FINISHED.
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for Source: 
Impulse -> [4]assert_that/{Create, Group} (1/1) 
(5669f07f17dfc835abcaf5c94b2c0906).
[Source: Impulse -> [4]assert_that/{Create, Group} (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task Source: Impulse -> [4]assert_that/{Create, Group} (1/1) 
(5669f07f17dfc835abcaf5c94b2c0906) [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: Impulse 
-> [4]assert_that/{Create, Group} 5669f07f17dfc835abcaf5c94b2c0906.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Impulse -> 
[4]assert_that/{Create, Group} (1/1) (5669f07f17dfc835abcaf5c94b2c0906) 
switched from RUNNING to FINISHED.
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:ptransform_execution_time:total_msecs:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, [3]{Create, 
Map(<lambda at fn_api_runner_test.py:531>), WindowInto(WindowIntoFn), 0]
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 
'beam.metric:pardo_execution_time:process_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]{Create, Map(<lambda at 
fn_api_runner_test.py:531>), WindowInto(WindowIntoFn), 0]
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:pardo_execution_time:start_bundle_msecs:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, [3]{Create, 
Map(<lambda at fn_api_runner_test.py:531>), WindowInto(WindowIntoFn), 0]
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:pardo_execution_time:finish_bundle_msecs:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, [3]{Create, 
Map(<lambda at fn_api_runner_test.py:531>), WindowInto(WindowIntoFn), 0]
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:element_count:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]{Create, Map(<lambda at 
fn_api_runner_test.py:531>), WindowInto(WindowIntoFn), 0]
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] WARN 
org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a 
Metric with the name 'beam.metric:sampled_byte_size:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]{Create, Map(<lambda at 
fn_api_runner_test.py:531>), WindowInto(WindowIntoFn), 0]
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - [3]{Create, Map(<lambda at 
fn_api_runner_test.py:531>), WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1) 
(0abd4b6f895e6cd26a850dc448f3d269) switched from RUNNING to FINISHED.
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1) 
(0abd4b6f895e6cd26a850dc448f3d269).
[[3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1)] INFO 
org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem streams are 
closed for task [3]{Create, Map(<lambda at fn_api_runner_test.py:531>), 
WindowInto(WindowIntoFn)} -> ToKeyedWorkItem (1/1) 
(0abd4b6f895e6cd26a850dc448f3d269) [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 [3]{Create, 
Map(<lambda at fn_api_runner_test.py:531>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem 0abd4b6f895e6cd26a850dc448f3d269.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - [3]{Create, 
Map(<lambda at fn_api_runner_test.py:531>), WindowInto(WindowIntoFn)} -> 
ToKeyedWorkItem (1/1) (0abd4b6f895e6cd26a850dc448f3d269) switched from RUNNING 
to FINISHED.
WARNING:root:No unique name set for transform 
fn/write/ref_PCollection_PCollection_24:0:0
WARNING:root:No unique name set for transform 
fn/read/ref_PCollection_PCollection_15:0
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] WARN org.apache.flink.metrics.MetricGroup - Name collision: Group 
already contains a Metric with the name 
'beam.metric:ptransform_execution_time:total_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [5]{Map(<lambda at fn_api_runner_test.py:534>), 
assert_that}, 0]
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] WARN org.apache.flink.metrics.MetricGroup - Name collision: Group 
already contains a Metric with the name 
'beam.metric:pardo_execution_time:start_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [5]{Map(<lambda at fn_api_runner_test.py:534>), 
assert_that}, 0]
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] WARN org.apache.flink.metrics.MetricGroup - Name collision: Group 
already contains a Metric with the name 
'beam.metric:pardo_execution_time:finish_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [5]{Map(<lambda at fn_api_runner_test.py:534>), 
assert_that}, 0]
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] WARN org.apache.flink.metrics.MetricGroup - Name collision: Group 
already contains a Metric with the name 
'beam.metric:pardo_execution_time:process_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [5]{Map(<lambda at fn_api_runner_test.py:534>), 
assert_that}, 0]
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] WARN org.apache.flink.metrics.MetricGroup - Name collision: Group 
already contains a Metric with the name 'beam.metric:element_count:v1'. Metric 
will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, 
[5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that}, 0]
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] WARN org.apache.flink.metrics.MetricGroup - Name collision: Group 
already contains a Metric with the name 'beam.metric:sampled_byte_size:v1'. 
Metric will not be reported.[localhost, taskmanager, 
5fa612c7-8467-44e3-9dcd-09ae35da97e8, test_windowing_1558700662.67, 
[5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that}, 0]
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] INFO org.apache.flink.runtime.taskmanager.Task - GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} (1/1) 
(8078ea15b09542ce7fb15f4d21737491) switched from RUNNING to FINISHED.
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources 
for GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1) (8078ea15b09542ce7fb15f4d21737491).
[GroupByKey -> [5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
(1/1)] INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
streams are closed for task GroupByKey -> [5]{Map(<lambda at 
fn_api_runner_test.py:534>), assert_that} (1/1) 
(8078ea15b09542ce7fb15f4d21737491) [FINISHED]
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} 
8078ea15b09542ce7fb15f4d21737491.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
ToKeyedWorkItem (1/1) (064b0e7f61d49aedb3298f6ee29fb3fa) switched from RUNNING 
to FINISHED.
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Freeing task resources for ToKeyedWorkItem (1/1) 
(064b0e7f61d49aedb3298f6ee29fb3fa).
[ToKeyedWorkItem (1/1)] INFO org.apache.flink.runtime.taskmanager.Task - 
Ensuring all FileSystem streams are closed for task ToKeyedWorkItem (1/1) 
(064b0e7f61d49aedb3298f6ee29fb3fa) [FINISHED]
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Un-registering task and 
sending final execution state FINISHED to JobManager for task ToKeyedWorkItem 
064b0e7f61d49aedb3298f6ee29fb3fa.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - GroupByKey -> 
[5]{Map(<lambda at fn_api_runner_test.py:534>), assert_that} (1/1) 
(8078ea15b09542ce7fb15f4d21737491) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - ToKeyedWorkItem (1/1) 
(064b0e7f61d49aedb3298f6ee29fb3fa) switched from RUNNING to FINISHED.
WARNING:root:No unique name set for transform 
fn/read/ref_PCollection_PCollection_27:0
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
WARN org.apache.flink.metrics.MetricGroup - Name collision: Group already 
contains a Metric with the name 
'beam.metric:pardo_execution_time:finish_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]assert_that/{Group, Unkey, Match}, 0]
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
WARN org.apache.flink.metrics.MetricGroup - Name collision: Group already 
contains a Metric with the name 
'beam.metric:pardo_execution_time:process_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]assert_that/{Group, Unkey, Match}, 0]
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
WARN org.apache.flink.metrics.MetricGroup - Name collision: Group already 
contains a Metric with the name 
'beam.metric:pardo_execution_time:start_bundle_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]assert_that/{Group, Unkey, Match}, 0]
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
WARN org.apache.flink.metrics.MetricGroup - Name collision: Group already 
contains a Metric with the name 
'beam.metric:ptransform_execution_time:total_msecs:v1'. Metric will not be 
reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]assert_that/{Group, Unkey, Match}, 0]
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
WARN org.apache.flink.metrics.MetricGroup - Name collision: Group already 
contains a Metric with the name 'beam.metric:element_count:v1'. Metric will not 
be reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]assert_that/{Group, Unkey, Match}, 0]
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
WARN org.apache.flink.metrics.MetricGroup - Name collision: Group already 
contains a Metric with the name 'beam.metric:sampled_byte_size:v1'. Metric will 
not be reported.[localhost, taskmanager, 5fa612c7-8467-44e3-9dcd-09ae35da97e8, 
test_windowing_1558700662.67, [3]assert_that/{Group, Unkey, Match}, 0]
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
INFO org.apache.beam.runners.fnexecution.control.DefaultJobBundleFactory - 
Closing environment urn: "beam:env:external:v1"
payload: "\n\021\022\017localhost:46259"

INFO:root:No more requests from control plane
INFO:root:SDK Harness waiting for in-flight requests to complete
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
WARN org.apache.beam.sdk.fn.data.BeamFnDataGrpcMultiplexer - Hanged up for 
unknown endpoint.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - assert_that/Group/GroupByKey 
-> [3]assert_that/{Group, Unkey, Match} (1/1) 
(18d369a09117a16f395496d85869db98) switched from RUNNING to FINISHED.
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - Freeing task resources for 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1) 
(18d369a09117a16f395496d85869db98).
[assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1)] 
INFO org.apache.flink.runtime.taskmanager.Task - Ensuring all FileSystem 
streams are closed for task assert_that/Group/GroupByKey -> 
[3]assert_that/{Group, Unkey, Match} (1/1) (18d369a09117a16f395496d85869db98) 
[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 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} 
18d369a09117a16f395496d85869db98.
ERROR:root:Failed to read inputs in the data plane
Traceback (most recent call last):
  File "apache_beam/runners/worker/data_plane.py", line 271, in _read_inputs
    for elements in elements_iterator:
  File 
"<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/grpc/_channel.py";,>
 line 366, in next
    return self._next()
  File 
"<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/grpc/_channel.py";,>
 line 357, in _next
    raise self
_Rendezvous: <_Rendezvous of RPC that terminated with:
        status = StatusCode.CANCELLED
        details = "Multiplexer hanging up"
        debug_error_string = 
"{"created":"@1558700664.080041078","description":"Error received from peer 
ipv4:127.0.0.1:41789","file":"src/core/lib/surface/call.cc","file_line":1041,"grpc_message":"Multiplexer
 hanging up","grpc_status":1}"
>
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - 
assert_that/Group/GroupByKey -> [3]assert_that/{Group, Unkey, Match} (1/1) 
(18d369a09117a16f395496d85869db98) switched from RUNNING to FINISHED.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.executiongraph.ExecutionGraph - Job 
test_windowing_1558700662.67 (59d42d23d82be42dc10085eff07da11d) switched from 
state RUNNING to FINISHED.Exception in thread read_grpc_client_inputs:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "apache_beam/runners/worker/data_plane.py", line 285, in <lambda>
    target=lambda: self._read_inputs(elements_iterator),
  File "apache_beam/runners/worker/data_plane.py", line 271, in _read_inputs
    for elements in elements_iterator:
  File 
"<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/grpc/_channel.py";,>
 line 366, in next
    return self._next()
  File 
"<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/grpc/_channel.py";,>
 line 357, in _next
    raise self
_Rendezvous: <_Rendezvous of RPC that terminated with:
        status = StatusCode.CANCELLED
        details = "Multiplexer hanging up"
        debug_error_string = 
"{"created":"@1558700664.080041078","description":"Error received from peer 
ipv4:127.0.0.1:41789","file":"src/core/lib/surface/call.cc","file_line":1041,"grpc_message":"Multiplexer
 hanging up","grpc_status":1}"
>


[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Stopping checkpoint 
coordinator for job 59d42d23d82be42dc10085eff07da11d.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.checkpoint.StandaloneCompletedCheckpointStore - 
Shutting down
INFO:root:Closing all cached grpc data channels.
INFO:root:Closing all cached gRPC state handlers.
INFO:root:Done consuming work.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Job 
59d42d23d82be42dc10085eff07da11d reached globally terminal state FINISHED.
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org.apache.flink.runtime.jobmaster.JobMaster - Stopping the JobMaster for job 
test_windowing_1558700662.67(59d42d23d82be42dc10085eff07da11d).
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connection for job 59d42d23d82be42dc10085eff07da11d.
[flink-akka.actor.default-dispatcher-2] INFO 
org.apache.flink.runtime.jobmaster.JobMaster - Close ResourceManager connection 
0813597a0d7e26e3e82bf03c8cf6706c: JobManager is shutting down..
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTable - Free slot 
TaskSlot(index:0, state:ALLOCATED, resource profile: 
ResourceProfile{cpuCores=1.0, heapMemoryInMB=42, directMemoryInMB=0, 
nativeMemoryInMB=0, networkMemoryInMB=0}, allocationId: 
AllocationID{8753b6ccd07deea5618d51bc79170939}, jobId: 
59d42d23d82be42dc10085eff07da11d).
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[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Close JobManager 
connection for job 59d42d23d82be42dc10085eff07da11d.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - Disconnect 
job manager 91b896e45a8cb40bfe607aa3421048eb@akka://flink/user/jobmanager_55 
for job 59d42d23d82be42dc10085eff07da11d from the resource manager.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.jobmaster.slotpool.SlotPool - Stopping SlotPool.
[flink-runner-job-invoker] INFO 
org.apache.flink.runtime.minicluster.MiniCluster - Shutting down Flink Mini 
Cluster
[flink-runner-job-invoker] INFO 
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint - Shutting down rest 
endpoint.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopping dispatcher 
akka://flink/user/dispatchercdcc897a-3452-4c15-87aa-f80e7812600c.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopping all 
currently running jobs of dispatcher 
akka://flink/user/dispatchercdcc897a-3452-4c15-87aa-f80e7812600c.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Stopping TaskExecutor 
akka://flink/user/taskmanager_54.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.rest.handler.legacy.backpressure.StackTraceSampleCoordinator
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[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.state.TaskExecutorLocalStateStoresManager - Shutting 
down TaskExecutorLocalStateStoresManager.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - Closing the 
SlotManager.
[flink-akka.actor.default-dispatcher-4] INFO 
org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - Suspending 
the SlotManager.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.dispatcher.StandaloneDispatcher - Stopped dispatcher 
akka://flink/user/dispatchercdcc897a-3452-4c15-87aa-f80e7812600c.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.io.disk.iomanager.IOManager - I/O manager removed 
spill file directory /tmp/flink-io-9d9d4167-64c9-4f25-b36f-967b35501341
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.io.network.NetworkEnvironment - Shutting down the 
network environment and its components.
[ForkJoinPool.commonPool-worker-2] INFO 
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directory /tmp/flink-web-ui
[ForkJoinPool.commonPool-worker-2] INFO 
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[flink-akka.actor.default-dispatcher-5] INFO 
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service.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.taskexecutor.TaskExecutor - Stopped TaskExecutor 
akka://flink/user/taskmanager_54.
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.beam.runners.flink.metrics.FileReporter - wrote metrics to 
/tmp/flinktest-confwfSIAj/test-metrics.txt
[flink-akka.actor.default-dispatcher-5] INFO 
org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopping Akka RPC service.
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.blob.PermanentBlobCache - Shutting down BLOB cache
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.blob.TransientBlobCache - Shutting down BLOB cache
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.blob.BlobServer - Stopped BLOB server at 0.0.0.0:42463
[flink-akka.actor.default-dispatcher-3] INFO 
org.apache.flink.runtime.rpc.akka.AkkaRpcService - Stopped Akka RPC service.
[flink-runner-job-invoker] INFO org.apache.beam.runners.flink.FlinkRunner - 
Execution finished in 302 msecs
[flink-runner-job-invoker] INFO org.apache.beam.runners.flink.FlinkRunner - 
Final accumulator values:
[flink-runner-job-invoker] INFO org.apache.beam.runners.flink.FlinkRunner - 
__metricscontainers : 
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24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
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14Create/Impulse.None/beam:env:external:v1:0:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_1}: 1, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_WindowInto(WindowIntoFn)_18}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_15}: 2, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:element_count:v1 
{PCOLLECTION=ref_PCollection_PCollection_2}: 5, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_16}: 2, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_0_33}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 
{PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Map(_merge_tagged_vals_under_key)_40}:
 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/FlatMap(<lambda at core.py:2254>)_4}: 
0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_2:0}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Unkey_41}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_34}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Unkey_41}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_24:0}: 2, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 
{PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Map(_merge_tagged_vals_under_key)_40}:
 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_17:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:1:0}: 0, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Match_42}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/WindowInto(WindowIntoFn)_30}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_34}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_15:0}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Map(<lambda at 
fn_api_runner_test.py:534>)_23}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Map(<lambda at 
fn_api_runner_test.py:534>)_23}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/Map(decode)_16}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:1:0}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/FlatMap(<lambda at core.py:2254>)_4}: 
0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:1:0}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/FlatMap(<lambda at core.py:2254>)_4}: 
0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_15:0}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_1_34}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_24:0:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_0_33}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Create/FlatMap(<lambda at core.py:2254>)_4}: 
0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_12:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_20}: 2, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_23}: 2, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:ptransform_execution_time:total_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Match_42}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:element_count:v1
 {PCOLLECTION=ref_PCollection_PCollection_21}: 2, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:start_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/Flatten_35}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_15:0}: 0, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_Map(<lambda at 
fn_api_runner_test.py:534>)_23}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:finish_bundle_msecs:v1
 {PTRANSFORM=fn/write/ref_PCollection_PCollection_12:0}: 0, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=ref_AppliedPTransform_assert_that/Group/pair_with_0_33}: 0, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:pardo_execution_time:process_bundle_msecs:v1
 {PTRANSFORM=fn/read/ref_PCollection_PCollection_9:0}: 
0)Distributions(14Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_1}: DistributionResult{sum=13, 
count=1, min=13, max=13}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_10}: DistributionResult{sum=70, 
count=5, min=14, max=14}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_11}: DistributionResult{sum=100, 
count=5, min=20, max=20}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_24:0}: DistributionResult{sum=60, 
count=2, min=29, max=31}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_12}: DistributionResult{sum=140, 
count=5, min=28, max=28}, 
48Create/MaybeReshuffle/Reshuffle/RemoveRandomKeys.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_9}: DistributionResult{sum=80, 
count=5, min=16, max=16}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_24:1}: DistributionResult{sum=19, 
count=1, min=19, max=19}, 
14Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1 
{PCOLLECTION=ref_PCollection_PCollection_2}: DistributionResult{sum=75, 
count=5, min=15, max=15}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_19}: DistributionResult{sum=15, 
count=1, min=15, max=15}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_15}: DistributionResult{sum=75, 
count=2, min=36, max=39}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_18}: DistributionResult{sum=16, 
count=1, min=16, max=16}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_16}: DistributionResult{sum=66, 
count=2, min=32, max=34}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_17}: DistributionResult{sum=13, 
count=1, min=13, max=13}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_30}: DistributionResult{sum=14, 
count=1, min=14, max=14}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_28}: DistributionResult{sum=47, 
count=1, min=47, max=47}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_29}: DistributionResult{sum=39, 
count=1, min=39, max=39}, 
26assert_that/Create/Impulse.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_22}: DistributionResult{sum=17, 
count=1, min=17, max=17}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_20}: DistributionResult{sum=46, 
count=2, min=22, max=24}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_21}: DistributionResult{sum=48, 
count=2, min=23, max=25}, 
24GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_23}: DistributionResult{sum=52, 
count=2, min=25, max=27}, 
42assert_that/Group/GroupByKey/GroupByWindow.None/beam:env:external:v1:0:beam:metric:sampled_byte_size:v1
 {PCOLLECTION=ref_PCollection_PCollection_27}: DistributionResult{sum=59, 
count=1, min=59, max=59}))
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactRetrievalService
 - Manifest at 
/tmp/flinktestxqofLx/job_20d5af75-ab9d-461e-8e88-ae006456ab6c/MANIFEST has 0 
artifact locations
[flink-runner-job-invoker] INFO 
org.apache.beam.runners.fnexecution.artifact.BeamFileSystemArtifactStagingService
 - Removed dir /tmp/flinktestxqofLx/job_20d5af75-ab9d-461e-8e88-ae006456ab6c/
INFO:root:Job state changed to DONE
.INFO:root:removing conf dir: /tmp/flinktest-confwfSIAj

======================================================================
ERROR: test_external_transforms (__main__.FlinkRunnerTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File 
"<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/sdks/python/apache_beam/runners/portability/flink_runner_test.py";,>
 line 174, in test_external_transforms
    assert_that(res, equal_to([i for i in range(1, 10)]))
  File "apache_beam/pipeline.py", line 426, in __exit__
    self.run().wait_until_finish()
  File "apache_beam/runners/portability/portable_runner.py", line 426, in 
wait_until_finish
    for state_response in self._state_stream:
  File 
"<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/grpc/_channel.py";,>
 line 366, in next
    return self._next()
  File 
"<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/build/gradleenv/1922375555/local/lib/python2.7/site-packages/grpc/_channel.py";,>
 line 348, in _next
    self._state.condition.wait()
  File "/usr/lib/python2.7/threading.py", line 340, in wait
    waiter.acquire()
  File "apache_beam/runners/portability/portable_runner_test.py", line 69, in 
handler
    raise BaseException(msg)
BaseException: Timed out after 60 seconds.

==================== Timed out after 60 seconds. ====================

# Thread: <Thread(Thread-112, started daemon 140558685161216)>

# Thread: <Thread(ThreadPoolExecutor-15_0, started daemon 140559767795456)>

----------------------------------------------------------------------
Ran 68 tests in 287.200s

FAILED (errors=1, skipped=14)
# Thread: <_MainThread(MainThread, started 140560263522048)>

# Thread: <Thread(Thread-13, started daemon 140559457154816)>

# Thread: <Thread(Thread-92, started daemon 140558693553920)>

# Thread: <Thread(Thread-72, started daemon 140558710339328)>

# Thread: <Thread(Thread-33, started daemon 140559465547520)>

# Thread: <Thread(Thread-100, started daemon 140559818135296)>

# Thread: <Thread(Thread-52, started daemon 140558701946624)>

> Task :sdks:python:flinkCompatibilityMatrixStreamingPreOptimizeLOOPBACK FAILED

FAILURE: Build completed with 3 failures.

1: Task failed with an exception.
-----------
* Where:
Build file 
'<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/sdks/python/build.gradle'>
 line: 320

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

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

2: Task failed with an exception.
-----------
* Where:
Build file 
'<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/sdks/python/build.gradle'>
 line: 320

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

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

3: Task failed with an exception.
-----------
* Where:
Build file 
'<https://builds.apache.org/job/beam_PreCommit_Python_PVR_Flink_Cron/ws/src/sdks/python/build.gradle'>
 line: 320

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

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

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

Deprecated Gradle features were used in this build, making it incompatible with 
Gradle 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See 
https://docs.gradle.org/5.2.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 21m 10s
51 actionable tasks: 36 executed, 15 from cache

Publishing build scan...
https://gradle.com/s/gga567z5sxpnk

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

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