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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2016/06/05 19:30:59 UTC
[jira] [Updated] (HBASE-15967) Metric for active ipc Readers and
make default fraction of cpu count
[ https://issues.apache.org/jira/browse/HBASE-15967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-15967:
--------------------------
Attachment: HBASE-15967.master.001.patch
> Metric for active ipc Readers and make default fraction of cpu count
> --------------------------------------------------------------------
>
> Key: HBASE-15967
> URL: https://issues.apache.org/jira/browse/HBASE-15967
> Project: HBase
> Issue Type: Sub-task
> Reporter: stack
> Assignee: stack
> Attachments: HBASE-15967.master.001.patch
>
>
> Our ipc Readers are hard coded at 10 regardless since . Running w/ less Readers, we go faster..(e.g. 12 Readers has us doing 135k with workloadc and 6 readers has us doing 145k).. .but hard to tell what count of Readers are needed since no metric.
> This issue changes Readers to be 1/4 the installed CPUs or 8, whichever is the minimum, and then adds a new hbase.regionserver.ipc.runningReaders metric so you have a chance seeing whats needed.
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