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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7615) Add metrics for snapshots
Date Wed, 03 Apr 2013 10:39:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13620824#comment-13620824

Matteo Bertozzi commented on HBASE-7615:

[~eclark] what do you suggest instead? I just want to keep track of min/max/avg time of snapshots...

As far as I know, we don't have a way to store metrics like [snapshot: time]
so at the moment just having an idea of how long on avg it takes taking a snapshot or restoring
is a step forward.

I've used the histogram because is the same used by the log splitting, that is quite similar
to the snapshot workload... do you think that also the log split metrics doesn't make sense?
> Add metrics for snapshots
> -------------------------
>                 Key: HBASE-7615
>                 URL: https://issues.apache.org/jira/browse/HBASE-7615
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Ted Yu
>            Assignee: Matteo Bertozzi
>         Attachments: HBASE-7615-0.94.patch, HBASE-7615-0.94-v1.patch, HBASE-7615.patch,
HBASE-7615.patch, HBASE-7615-v0.patch, HBASE-7615-v0-ui-corrupted.png, HBASE-7615-v0-ui.png,
HBASE-7615-v1.patch, HBASE-7615-v2.patch, HBASE-7615-v3.patch
> Metrics should be added for snapshot.
> From Matteo: Output that we have in SnapshotInfo should be covered:
> "%d HFiles (%d in archive), total size %s (%.2f%% %s shared with the source table)"
> Jesse mentioned snaphot counts, average time to completion.
> I think we should have counts for successful / failed snapshots.

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