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https://issues.apache.org/jira/browse/HBASE-6727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kannan Muthukkaruppan updated HBASE-6727:
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Assignee: Michal Gregorczyk (was: Kannan Muthukkaruppan)
> [89-fb] allow HBaseServers's callqueue to be better configurable to avoid OOMs
> ------------------------------------------------------------------------------
>
> Key: HBASE-6727
> URL: https://issues.apache.org/jira/browse/HBASE-6727
> Project: HBase
> Issue Type: Bug
> Reporter: Kannan Muthukkaruppan
> Assignee: Michal Gregorczyk
>
> The callQueue size (where requests get queued up if all handlers are busy) is
> a LinkedBlockingQueue of size 100*# of handlers. So, with say 300 handler
> threads, the call queue can have upto 30k entries queued up. If the requests
> are large enough-- then this can result in OOM or severe GC pauses.
> Ideally, we should allow this param to be separately configurable independent
> of the # of handlers; and better still be able to specify a memory size based
> limit, instead of a # of entries based limit.
> [I have not looked at the trunk version for this issue. So it may or may not
> be relevant there.]
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