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https://issues.apache.org/jira/browse/BEAM-12753?focusedWorklogId=740864&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-740864
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ASF GitHub Bot logged work on BEAM-12753:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Mar/22 13:02
Start Date: 14/Mar/22 13:02
Worklog Time Spent: 10m
Work Description: codecov[bot] edited a comment on pull request #17067:
URL: https://github.com/apache/beam/pull/17067#issuecomment-1064565042
#
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(fa8979c) will **decrease** coverage by `0.00%`.
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@@ Coverage Diff @@
## master #17067 +/- ##
==========================================
- Coverage 73.94% 73.94% -0.01%
==========================================
Files 667 667
Lines 88056 88056
==========================================
- Hits 65116 65112 -4
- Misses 21829 21833 +4
Partials 1111 1111
```
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------
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Issue Time Tracking
-------------------
Worklog Id: (was: 740864)
Time Spent: 5h 10m (was: 5h)
> Flink Runner fails with memory issue when creating first TestStream instance
> ----------------------------------------------------------------------------
>
> Key: BEAM-12753
> URL: https://issues.apache.org/jira/browse/BEAM-12753
> Project: Beam
> Issue Type: Bug
> Components: runner-flink, sdk-go
> Reporter: Jack McCluskey
> Priority: P3
> Time Spent: 5h 10m
> Remaining Estimate: 0h
>
> Running Go SDK TestStream integration tests on the Flink runner consistently
> results in the following error on the first test run regardless of the test
> itself:
>
> {code:java}
> 2021/08/11 21:12:47 (): java.io.IOException: Insufficient number of network
> buffers: required 17, but only 14 available. The total number of network
> buffers is currently set to 2048 of 32768 bytes each. You can increase this
> number by setting the configuration keys
> 'taskmanager.memory.network.fraction', 'taskmanager.memory.network.min', and
> 'taskmanager.memory.network.max'.
> {code}
> This error is thrown on the first test run on a fresh instance of the Flink
> job server; subsequent test runs of the same suite pass. Stopping the job
> server and starting a new one results in the first test run failing again.
> The memory error is thrown for int64, float64, and boolean data types;
> however, if the first TestStream contains strings or byte slices the memory
> error does not occur. It should be noted that strings and byte slices are
> getting appended with an extra length prefix on the Flink side, although it
> is unclear if that is related.
>
> On further investigation, the bug appears to be environment-specific, with
> many machines unable to reproduce the issue; however, the error still occurs
> on Jenkins for test runs.
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