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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12320) Add quantiles for transactions batched in Journal sync
Date Sat, 23 Sep 2017 17:38:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Anu Engineer updated HDFS-12320:
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 3.1.0
           Status: Resolved  (was: Patch Available)

[~hanishakoneru] Thank you for the contribution. I have committed this to the trunk. There
was a trivial checkstyle issue that I have fixed while committing.

> Add  quantiles for transactions batched in Journal sync
> -------------------------------------------------------
>                 Key: HDFS-12320
>                 URL: https://issues.apache.org/jira/browse/HDFS-12320
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: metrics, namenode
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>             Fix For: 3.1.0
>         Attachments: HDFS-12320.001.patch
> We currently track the overall count of the transactions which were batch during journal
sync through the metric _TransactionsBatchedInSync_. It will be useful to to have a quantile
to measure the transactions batched together over a period. This would give a better understanding
of the distribution of the batching. 

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