Sandy Ryza created YARN-1100:
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Summary: Giving multiple commands to ContainerLaunchContext
doesn't work as expected
Key: YARN-1100
URL: https://issues.apache.org/jira/browse/YARN-1100
Project: Hadoop YARN
Issue Type: Bug
Components: api, nodemanager
Affects Versions: 2.1.0-beta
Reporter: Sandy Ryza
A ContainerLaunchContext accepts a list of commands (as strings) to be executed
to launch the container. I would expect that giving a list with the two
commands "echo yolo" and "date" would print something like
{code}
yolo
Mon Aug 26 14:40:23 PDT 2013
{code}
Instead it prints
{code}
yolo date
{code}
This is because the commands get executed with:
{code}
exec /bin/bash -c "echo yolo date"
{code}
To get the expected behavior I have to include semicolons at the end of each
command. At the very least, this should be documented, but I think better would
be for the NM to insert the semicolons.
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