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https://issues.apache.org/jira/browse/KUDU-1453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon resolved KUDU-1453.
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Resolution: Fixed
Fix Version/s: 0.9.0
> Spark executors leak kudu clients and netty threads
> ---------------------------------------------------
>
> Key: KUDU-1453
> URL: https://issues.apache.org/jira/browse/KUDU-1453
> Project: Kudu
> Issue Type: Bug
> Components: spark
> Affects Versions: 0.8.0
> Reporter: Todd Lipcon
> Assignee: Brent Gardner
> Priority: Blocker
> Fix For: 0.9.0
>
>
> On a test cluster, every time I run a spark SQL query against a table, each
> of my spark worker tasks end up with another ~500 netty worker threads
> created. It seems like each Spark partition/task is creating its own
> KuduClient which then creates a bunch of worker threads and never cleans them
> up.
> I'm calling this a blocker since after ~20 queries or so, the machines woudl
> run out of threads and crash.
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