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Posted to issues@hbase.apache.org by "Nicolas Spiegelberg (Updated) (JIRA)" <ji...@apache.org> on 2011/11/10 02:43:52 UTC

[jira] [Updated] (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:all-tabpanel ]

Nicolas Spiegelberg updated HBASE-4766:
---------------------------------------

    Assignee:     (was: Nicolas Spiegelberg)

looks like jgray redid the flow for the critical path.  going to punt on this one & let someone else with new critical path knowledge work on it or revisit later.
                
> 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
>
> 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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