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Posted to issues@hbase.apache.org by "Michael Stack (Jira)" <ji...@apache.org> on 2021/03/18 05:37:00 UTC

[jira] [Commented] (HBASE-22975) Add read and write QPS metrics at server level and table level

    [ https://issues.apache.org/jira/browse/HBASE-22975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17303861#comment-17303861 ] 

Michael Stack commented on HBASE-22975:
---------------------------------------

Today saw that the update of the table+server based read counts on each per scan nextRaw invocation becomes a bottleneck when heavy load. See subtask.

> Add read and write QPS metrics at server level and table level
> --------------------------------------------------------------
>
>                 Key: HBASE-22975
>                 URL: https://issues.apache.org/jira/browse/HBASE-22975
>             Project: HBase
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 2.2.0, 1.4.10
>            Reporter: Baiqiang Zhao
>            Assignee: Baiqiang Zhao
>            Priority: Minor
>             Fix For: 3.0.0-alpha-1, 1.5.0, 1.4.11, 2.1.7, 2.2.2
>
>         Attachments: HBASE-22975.branch-2.0001.patch, readQPS.png, writeQPS.png
>
>
> Use HBase‘s existing class DropwizardMeter to collect read and write QPS. The collected location is the same as metrics readRequestsCount and writeRequestsCount.



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