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https://issues.apache.org/jira/browse/FLINK-5276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15728761#comment-15728761
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ASF GitHub Bot commented on FLINK-5276:
---------------------------------------
GitHub user uce opened a pull request:
https://github.com/apache/flink/pull/2957
[FLINK-5276] [eg] Check for null when archiving prior execution attempts
The `EvictingBoundedList` returns the default value for all evicted
elements. This could lead to NPE when archiving an `ExecutionVertex`.
/cc @StefanRRichter
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/uce/flink 5276-archive_execvertex_npe
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2957.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2957
----
commit c1f90b70cedc7c5d942a67dcc0b12068dbf5acd7
Author: Ufuk Celebi <[email protected]>
Date: 2016-12-07T13:26:35Z
[FLINK-5276] [eg] Check for null when archiving prior execution attempts
----
> ExecutionVertex archiving can throw NPE with many previous attempts
> -------------------------------------------------------------------
>
> Key: FLINK-5276
> URL: https://issues.apache.org/jira/browse/FLINK-5276
> Project: Flink
> Issue Type: Bug
> Components: JobManager
> Reporter: Ufuk Celebi
> Assignee: Ufuk Celebi
> Fix For: 1.1.4
>
>
> I saw a NPE while archiving a ExecutionVertex:
> {code}
> execution graph
> org.apache.flink.runtime.executiongraph.ExecutionGraph@c4e0722 for archiving.
> java.lang.NullPointerException: null
> at
> org.apache.flink.runtime.executiongraph.ExecutionVertex.prepareForArchiving(ExecutionVertex.java:583)
> at
> org.apache.flink.runtime.executiongraph.ExecutionJobVertex.prepareForArchiving(ExecutionJobVertex.java:439)
> at
> org.apache.flink.runtime.executiongraph.ExecutionGraph.prepareForArchiving(ExecutionGraph.java:1042)
> ...
> {code}
> I think this is due to the newly introduced {{EvictingBoundedList}} which
> returns a default element ({{null}})) for evicted elements when iterating
> over it.
> This affects the backport to release-1.1 only.
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