[
https://issues.apache.org/jira/browse/HDFS-13734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16894069#comment-16894069
]
Eric Yang commented on HDFS-13734:
----------------------------------
[~bdscheller] Sorry, I agree with [~aw]. HDFS_*_OPTS is preferred for a number
of reasons, like -Xms setting and gc policy flags etc. By giving -Xmx flag
without optimize other flag may create other problems for novice users and
complicates config management. YARN_*_HEAPSIZE are not good examples to follow.
> Add Heapsize variables for HDFS daemons
> ---------------------------------------
>
> Key: HDFS-13734
> URL: https://issues.apache.org/jira/browse/HDFS-13734
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode, journal-node, namenode
> Affects Versions: 3.0.3
> Reporter: Brandon Scheller
> Priority: Major
>
> Currently there are no variables to set HDFS daemon heapsize differently.
> While still possible through adding the -Xmx to HDFS_*DAEMON*_OPTS, this is
> not intuitive for this relatively common setting.
> YARN currently has these separate YARN_*DAEMON*_HEAPSIZE variables supported
> so it seems natural for HDFS too.
> It also looks like HDFS use to have this for namenode with
> HADOOP_NAMENODE_INIT_HEAPSIZE
> This JIRA is to have these configurations added/supported
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
