hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15967) Metric for active ipc Readers and make default fraction of cpu count
Date Tue, 07 Jun 2016 03:55:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15317777#comment-15317777

stack commented on HBASE-15967:

Which one you want [~bbeaudreault]? We don't seem to have the meter in our armory (see DynamicMetricsRegistry)
to do the percentage that you point to in the 0.8 abve. We have a Rate as in 0.9 pointer above.
What did you fellows do? I like the idea of percentage occupancy so you can tell if you need
to up Readers/Handlers. Thanks.

> 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.

This message was sent by Atlassian JIRA

View raw message