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https://issues.apache.org/jira/browse/HADOOP-6280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12758779#action_12758779
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Koji Noguchi commented on HADOOP-6280:
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My initial thought was to simply insert
+ exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS -classpath "$CLASSPATH" $CLASS
$HADOOP_TOOL_OPTS "$@"
in the hadoop script.
But this won't work when
# if $CLASS doesn't implement Tool, then command would fail
# hadoop jar case won't work.
If I have
% export HADOOP_TOOL_OPTS -Ddfs.umask=23
% hadoop jar $HADOOP_HOME/hadoop-streaming.jar -input ...
I want to have
java org.apache.hadoop.util.RunJar $HADOOP_HOME/hadoop-streaming.jar
-Ddfs.umask=23 -input
and NOT
java org.apache.hadoop.util.RunJar -Ddfs.umask=23
$HADOOP_HOME/hadoop-streaming.jar -input
There must be something obvious I'm missing...
If not, can I ask the ToolRunner to read in the HADOOP_TOOL_OPTS property
directly?
> Uniform way of setting default param for ToolRunner (like passing -Ddfs.umask)
> ------------------------------------------------------------------------------
>
> Key: HADOOP-6280
> URL: https://issues.apache.org/jira/browse/HADOOP-6280
> Project: Hadoop Common
> Issue Type: New Feature
> Components: util
> Reporter: Koji Noguchi
> Priority: Minor
>
> Sometimes our users want to overwrite the dfs.umask setting we have on our
> cluster (but continue to use the configdir we setup).
> They would need to explicitly insert
> hadoop dfs -Ddfs.umask=23 -put ...
> or
> hadoop jar myjar.jar org.MyMain -Ddfs.umask=23 ...
> for all the hadoop related calls.
> It would be nice if this can be done by setting an environment like
> export HADOOP_TOOL_OPTS=-Ddfs.umask=23
> and cover all cases.
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