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https://issues.apache.org/jira/browse/DRILL-1399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Venkata krishnan Sowrirajan resolved DRILL-1399.
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Resolution: Invalid
> Drill-bit process threads keeps on increasing
> ---------------------------------------------
>
> Key: DRILL-1399
> URL: https://issues.apache.org/jira/browse/DRILL-1399
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Venkata krishnan Sowrirajan
>
> I actually found increasing number of threads in drill-bit process whenever
> an exception occurs and the threads are in BLOCKED state.
> So this is what I am trying to do.
> "select columns[0], columns[1] from `/data.csv` where columns[0] > 500000
> limit 100;" This query fails with a NumberFormatException because the column
> header is having a string which is understandable. So if I do the same query
> again and again, some of the drill-bit threads goes into waiting state
> forever. And for the new query another set of threads are spawned which
> increases the number of threads with in the drillbit process over a period of
> time. Have anyone seen similar scenario? Wouldn't this overload the process
> over a period of time?
> Please let me know if you need any other details. I have the JStack output
> taken from drillbit process after running the query every time.
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