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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9902) Shell script rewrite
Date Mon, 18 Aug 2014 20:17:24 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14101212#comment-14101212

Suresh Srinivas commented on HADOOP-9902:

I reviewed the code the best I can. I only reviewed core hadoop and hdfs changes. It is is
really hard given some code formatting is mixed real improvements etc. This is a change that
could have been done in a feature branch. [~aw], certainly reviews could have been made easier
that way. That said, thank you for cleaning up the scripts. It is looks much better now!

# bin/hadoop not longer checks for hdfs commands portmap and nfs3. Is this intentional?
# hadoop-daemon.sh usage no longer prints --hosts optional paramter in usage; this is intentional
right? Also does all daemons now support option status along with start and stop?
# locating HADOOP_PREFIX is repeated in bin/hadoop and hadoop-daemon.sh (this can be optimized
in a future patch)
# start-all.sh and stop-all.sh exits with warning. Why retain code after that. Expect users
to delete the exit in the beginning?jj
# hadoop_error is not used in some cases and still echo is used. 
# hadoop-env.sh - we should document the GC configuration for max, min, young generation starting
and max size. Also think that secondary namenode should just be set to primary namenode settings.
This can be done in another jira. BTW nice job for explicitly specifying the overridable functionas
in hadoop-env.sh!
# cowsay is cute. But can get annoying :). Hopefully hadoop_usage is in every script (I checked,
it is).

> Shell script rewrite
> --------------------
>                 Key: HADOOP-9902
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9902
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>            Assignee: Allen Wittenauer
>              Labels: releasenotes
>             Fix For: 3.0.0
>         Attachments: HADOOP-9902-10.patch, HADOOP-9902-11.patch, HADOOP-9902-12.patch,
HADOOP-9902-13-branch-2.patch, HADOOP-9902-13.patch, HADOOP-9902-14.patch, HADOOP-9902-2.patch,
HADOOP-9902-3.patch, HADOOP-9902-4.patch, HADOOP-9902-5.patch, HADOOP-9902-6.patch, HADOOP-9902-7.patch,
HADOOP-9902-8.patch, HADOOP-9902-9.patch, HADOOP-9902.patch, HADOOP-9902.txt, hadoop-9902-1.patch,
> Umbrella JIRA for shell script rewrite.  See more-info.txt for more details.

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