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Posted to common-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/09/13 00:51:34 UTC

[jira] [Commented] (HADOOP-10908) Cluster Node Setup needs updating

    [ https://issues.apache.org/jira/browse/HADOOP-10908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14132247#comment-14132247 ] 

Allen Wittenauer commented on HADOOP-10908:
-------------------------------------------

Quick list of things:
* Remove reference to YARN_xyz where there is a HADOOP_xyz equivalent
* Remove the 'appender' env vars examples
* Remove HADOOP_SECURE_PID_DIR since hadoop-env.sh mentions it specifically.  Plus that should be in the security documentation, not someone's first intro to hadoop.
* Mention that hadoop-env.sh can be used for all services and that yarn-env.sh and mapred-env.sh don't have to be used
* If HADOOP-10950 gets committed, mention that heapsizes can be in m, g, etc. units.  Also no more HADOOP_HEAPSIZE, but use _MAX and _MIN
* Mention -D params for setting logging options too.
* Remove sbin commands for single-node start/stop. Use --daemon equivalents instead. (e.g., hadoop-daemon.sh start namenode => hdfs --daemon start namenode )

> Cluster Node Setup needs updating
> ---------------------------------
>
>                 Key: HADOOP-10908
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10908
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: documentation
>            Reporter: Allen Wittenauer
>
> A lot of the instructions in the cluster node setup are not good practices post-9902.



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