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Posted to issues@hbase.apache.org by "Nicolas Spiegelberg (Commented) (JIRA)" <ji...@apache.org> on 2011/11/10 01:53:51 UTC

[jira] [Commented] (HBASE-4766) Add Instrumentation for Put Latencies at Critical Paths

    [ https://issues.apache.org/jira/browse/HBASE-4766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147401#comment-13147401 ] 

Nicolas Spiegelberg commented on HBASE-4766:
--------------------------------------------

Internal stats...

Author: Kannan
Reviewed By: jgray
Reviewers: jgray, nspiegelberg, dhruba, kranganathan
                
> Add Instrumentation for Put Latencies at Critical Paths
> -------------------------------------------------------
>
>                 Key: HBASE-4766
>                 URL: https://issues.apache.org/jira/browse/HBASE-4766
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.94.0
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>
> Part of 89-fb to 92 port. Add instrumentation to collect:
> - memstore insert time
> - RWCC wait time (the time we wait after an write operation to, for RWCC read point to advance).
> - row lock acquisition time

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