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https://issues.apache.org/jira/browse/HADOOP-7599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13101715#comment-13101715
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Eric Yang commented on HADOOP-7599:
-----------------------------------
In the patch, I put in the configuration properties that are not security
related but are good configurations that are tested to work in large 0.20.2xx
clusters.
mapred.heartbeats.in.second - enable HADOOP:5784
mapreduce.tasktracker.outofband.heartbeat - enable MAPREDUCE:270
mapred.jobtracker.maxtasks.per.job - safe guard job tracker from running out of
memory
mapred.jobtracker.retirejob.check - 10000
mapred.jobtracker.retirejob.interval - 0
mapred.map.tasks.speculative.execution - false
mapred.reduce.tasks.speculative.execution - false
mapred.tasktracker.tasks.sleeptime-before-sigkill - 250
> Improve hadoop setup conf script to setup secure Hadoop cluster
> ---------------------------------------------------------------
>
> Key: HADOOP-7599
> URL: https://issues.apache.org/jira/browse/HADOOP-7599
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Affects Versions: 0.20.203.0
> Environment: Java 6, RHEL 5.6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Fix For: 0.20.205.0
>
> Attachments: HADOOP-7599-1.patch, HADOOP-7599-2.patch,
> HADOOP-7599-3.patch, HADOOP-7599-trunk-2.patch, HADOOP-7599-trunk-3.patch,
> HADOOP-7599-trunk.patch, HADOOP-7599.patch
>
>
> Setting up a secure Hadoop cluster requires a lot of manual setup. The
> motivation of this jira is to provide setup scripts to automate setup secure
> Hadoop cluster.
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