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https://issues.apache.org/jira/browse/PHOENIX-359?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabriel Reid resolved PHOENIX-359.
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Resolution: Fixed
Bulk resolve of closed issues imported from GitHub. This status was reached by
first re-opening all closed imported issues and then resolving them in bulk.
> Bad performance for multi-thread env?
> -------------------------------------
>
> Key: PHOENIX-359
> URL: https://issues.apache.org/jira/browse/PHOENIX-359
> Project: Phoenix
> Issue Type: Task
> Reporter: Raymond Liu
>
> 1. I observed that within one JVM, if I fork a lot of thread to connect with
> phoenix via jdbc, the performance is bad, no matter how much thread I open,
> it doesn't show much difference. CPU is always around 200% ( on top), since
> I do have 24 Core there, the overall cpu load is just around 8%
> 2. the phoenix.query.threadPoolSize doesn't helps, I set it from 10 or 240,
> no obvious difference.
> However, If I run it with multiple JVM, each for 1-2 thread, It do improve
> CPU usage. So it seems to me there must be something no going well with
> multiple thread env. might be some lock mechanism? thread waiting on lock for
> each other ?
> Any Idea on this?
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