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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18436) Add client-side hedged read metrics
Date Sat, 30 Sep 2017 01:24:03 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16186778#comment-16186778
] 

Hudson commented on HBASE-18436:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-1.4 #936 (See [https://builds.apache.org/job/HBase-1.4/936/])
HBASE-18436 Add client-side hedged read metrics (Yun Zhao) (apurtell: rev 8148a75cb7129341fef5e169a6ec08a55aeb416d)
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransactionOnCluster.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/client/MetricsConnection.java
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestReplicasClient.java


> Add client-side hedged read metrics
> -----------------------------------
>
>                 Key: HBASE-18436
>                 URL: https://issues.apache.org/jira/browse/HBASE-18436
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Yun Zhao
>            Assignee: Yun Zhao
>            Priority: Minor
>             Fix For: 2.0.0, 3.0.0, 1.4.0, 1.5.0
>
>         Attachments: HBASE-18436.master.001.patch
>
>
> Need some metrics to represent indicate read high-availability.
> +hedgedReadOps -- the number of hedged read that have occurred.
> +hedgedReadWin -- the number of hedged read returned faster than the original read.



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