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https://issues.apache.org/jira/browse/TINKERPOP-1525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15605155#comment-15605155
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ASF GitHub Bot commented on TINKERPOP-1525:
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Github user okram commented on the issue:
https://github.com/apache/tinkerpop/pull/462
Ah. Yea -- huh. Total odd ball case, but yea, you are right. The empty
iterator would make it so the end iteration never fires.
VOTE +1.
> Plug VertexProgram iteration leak on empty Spark RDD partitions
> ---------------------------------------------------------------
>
> Key: TINKERPOP-1525
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1525
> Project: TinkerPop
> Issue Type: Bug
> Components: hadoop
> Affects Versions: 3.2.3
> Reporter: Dan LaRocque
>
> If SparkExecutor gets an RDD with empty partitions, it can invoke
> {{VertexProgram.workerIterationStart}} without ever invoking
> {{VertexProgram.workerIterationEnd}}.
> For vertex programs that allocate and release meaningful resources in the
> start/end methods, this can lead to resource leaks.
> I already tested a fix that I made against the 3.2 series. I will submit PRs
> momentarily.
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