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Posted to issues@hbase.apache.org by "Zhihong Yu (Updated) (JIRA)" <ji...@apache.org> on 2012/01/11 20:03:39 UTC
[jira] [Updated] (HBASE-3565) Add metrics to keep track of slow
HLog appends
[ https://issues.apache.org/jira/browse/HBASE-3565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhihong Yu updated HBASE-3565:
------------------------------
Summary: Add metrics to keep track of slow HLog appends (was: Add a metric to keep track of slow HLog appends)
> Add metrics to keep track of slow HLog appends
> ----------------------------------------------
>
> Key: HBASE-3565
> URL: https://issues.apache.org/jira/browse/HBASE-3565
> Project: HBase
> Issue Type: Improvement
> Components: metrics, regionserver
> Reporter: Benoit Sigoure
> Assignee: Mubarak Seyed
> Labels: monitoring
> Fix For: 0.94.0
>
> Attachments: HBASE-3565.trunk.v1.patch
>
>
> Whenever an edit takes too long to be written to an HLog, HBase logs a warning such as this one:
> {code}
> 2011-02-23 20:03:14,703 WARN org.apache.hadoop.hbase.regionserver.wal.HLog: IPC Server handler 21 on 60020 took 15065ms appending an edit to hlog; editcount=126050
> {code}
> I would like to have a counter incremented each time this happens and this counter exposed via the metrics stuff in HBase so I can collect it in my monitoring system.
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