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https://issues.apache.org/jira/browse/HADOOP-13533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15431874#comment-15431874
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ASF GitHub Bot commented on HADOOP-13533:
-----------------------------------------
GitHub user chu11 opened a pull request:
https://github.com/apache/hadoop/pull/121
HADOOP-13533: Do not require user to set HADOOP_SSH_OPTS to a non-null
string, allow
setting of an empty string.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chu11/hadoop HADOOP-13533
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/hadoop/pull/121.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #121
----
commit 952f515ca5251f064c62187a4268d1359bb271f7
Author: Albert Chu <[email protected]>
Date: 2016-08-23T00:41:41Z
Do not require user to set HADOOP_SSH_OPTS to a non-null string, allow
setting of an empty string.
----
> User cannot set empty HADOOP_SSH_OPTS environment variable option
> -----------------------------------------------------------------
>
> Key: HADOOP-13533
> URL: https://issues.apache.org/jira/browse/HADOOP-13533
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Affects Versions: 3.0.0-alpha2
> Reporter: Albert Chu
> Priority: Minor
>
> In hadoop-functions.sh in the hadoop_basic_init function there is this
> initialization of HADOOP_SSH_OPTS:
> {noformat}
> HADOOP_SSH_OPTS=${HADOOP_SSH_OPTS:-"-o BatchMode=yes -o
> StrictHostKeyChecking=no -o ConnectTimeout=10s"}
> {noformat}
> I believe this parameter substitution is a bug. While most of the
> environment variables set in the function are generally required for
> functionality (HADOOP_LOG_DIR, HADOOP_LOGFILE, etc.) I don't believe
> HADOOP_SSH_OPTS is one of them. If the user wishes to set HADOOP_SSH_OPTS to
> an empty string (i.e. HADOOP_SSH_OPTS="") they should be able to. But
> instead, this is requiring HADOOP_SSH_OPTS to always be set to something.
> So I think the ":-" in the above should be "-". Github pull request to be
> sent shortly.
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