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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5784) The length of the heartbeat cycle should be configurable.
Date Mon, 01 Jun 2009 11:20:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715065#action_12715065
] 

Amareshwari Sriramadasu commented on HADOOP-5784:
-------------------------------------------------

Test failures are not related to the patch. All tests passed on my machine

> The length of the heartbeat cycle should be configurable.
> ---------------------------------------------------------
>
>                 Key: HADOOP-5784
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5784
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Owen O'Malley
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.21.0
>
>         Attachments: patch-5784-1.txt, patch-5784.txt
>
>
> Currently, the hearbeat cycle is set to (# nodes / 100) in seconds. This can be too long
for clusters that need to run low latency jobs. We should make the number of heartbeats that
should arrive a second configurable.

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