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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-443) New metrics in namenode to capture lost heartbeats.
Date Wed, 15 Jul 2009 15:48:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12731524#action_12731524
] 

Hudson commented on HDFS-443:
-----------------------------

Integrated in Hadoop-Hdfs-trunk #23 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk/23/])
    . Add a new metrics numExpiredHeartbeats to the Namenode.  Contributed by Jitendra Nath
Pandey


> New metrics in namenode to capture lost heartbeats.
> ---------------------------------------------------
>
>                 Key: HDFS-443
>                 URL: https://issues.apache.org/jira/browse/HDFS-443
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 0.21.0
>            Reporter: Jitendra Nath Pandey
>            Assignee: Jitendra Nath Pandey
>             Fix For: 0.21.0
>
>         Attachments: HDFS-443-2.patch, HDFS-443-3.patch, HDFS-443.patch
>
>
> Number of lost heartbeats metrics will count the heartbeats that namenode didn't receive
in a heartbeat interval. This will help operations team to detect the network issues or bad
datanode behaviors early on.

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