[HADOOP-13533] User cannot set empty HADOOP_SSH_OPTS environment variable option

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha2
• Fix Version/s: 3.0.0-alpha1
• Component/s: scripts
• Assignee: Albert Chu
• Reporter: Albert Chu
• Created: 23/Aug/16 00:42
• Updated: 21/Nov/16 23:21
• Resolved: 25/Aug/16 14:12

Description

In hadoop-functions.sh in the hadoop_basic_init function there is this initialization of HADOOP_SSH_OPTS:

HADOOP_SSH_OPTS=${HADOOP_SSH_OPTS:-"-o BatchMode=yes -o StrictHostKeyChecking=no -o ConnectTimeout=10s"}

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.

Issue Links

• links to: GitHub Pull Request #121