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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12320) Add quantiles for transactions batched in Journal sync
Date Sat, 23 Sep 2017 17:54:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16177917#comment-16177917
] 

Hudson commented on HDFS-12320:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #12956 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/12956/])
HDFS-12320. Add quantiles for transactions batched in Journal sync. (aengineer: rev 423ebcaf51099268a1c219c42ce339f86d4da111)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/metrics/NameNodeMetrics.java
* (edit) hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md


> 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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