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From "stack (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5262) Structured event log for HBase for monitoring and auto-tuning performance
Date Tue, 24 Jan 2012 06:33:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13191933#comment-13191933

stack commented on HBASE-5262:

@Mikhail Sounds good.  We'd write to hbase because we can't have many writers write same file
in hdfs?  This system table would be a new one, not .META.?  We'd fill it to the end of time
or the TTL on the table would get rid of old records (that'd work).
> Structured event log for HBase for monitoring and auto-tuning performance
> -------------------------------------------------------------------------
>                 Key: HBASE-5262
>                 URL: https://issues.apache.org/jira/browse/HBASE-5262
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Mikhail Bautin
> Creating this JIRA to open a discussion about a structured (machine-readable) log that
will record events such as compaction start/end times, compaction input/output files, their
sizes, the same for flushes, etc. This can be stored e.g. in a new system table in HBase itself.
The data from this log can then be analyzed and used to optimize compactions at run time,
or otherwise auto-tune HBase configuration to reduce the number of knobs the user has to configure.

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