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https://issues.apache.org/jira/browse/HADOOP-1276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12494257
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Hadoop QA commented on HADOOP-1276:
-----------------------------------
Integrated in Hadoop-Nightly #82 (See
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/82/)
> TaskTracker expiry interval is not configurable
> -----------------------------------------------
>
> Key: HADOOP-1276
> URL: https://issues.apache.org/jira/browse/HADOOP-1276
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Environment: all
> Reporter: Alejandro Abdelnur
> Assigned To: Arun C Murthy
> Fix For: 0.13.0
>
> Attachments: HADOOP-1276_20070504_1.patch
>
>
> The tasktracker expiry interval is hardcoded to 10 mins with the
> MRConstants.TASKTRACKER_EXPIRY_INTERVAL constant.
> For small clusters, running small jobs, this interval is too high.
> Making it configurable it would require:
> * Introducing a 'tasktracker.expiry.interval' property with default value of
> 10 mins.
> * Load the property in the JobTracker
> * Change the 5 usages of the constant by a property in the JobTracker
> * Remove the constant from MRConstants
> * add default value to the hadoop-default.xml file
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