Albert Chu created HADOOP-13533:
-----------------------------------
Summary: 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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