[jira] [Created] (MESOS-3724) subprocess fail to process "docker inspect" output if >64KB

["Bhuvan Arumugam (JIRA)" <ji...@apache.org>]

Bhuvan Arumugam created MESOS-3724:
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             Summary: subprocess fail to process "docker inspect" output if >64KB
                 Key: MESOS-3724
                 URL: https://issues.apache.org/jira/browse/MESOS-3724
             Project: Mesos
          Issue Type: Bug
          Components: slave
    Affects Versions: 0.21.1
            Reporter: Bhuvan Arumugam


When running a task with docker and if {{docker inspect}} output size is more than 64k, it fails. The {{docker inspect}} The subprocess library [1] used in mesos to run this command is not handling the output beyond this size.

{code}
docker pull livecipher/mesos-docker-inspect-64k:1.0 > /dev/null && docker inspect livecipher/mesos-docker-inspect-64k:1.0 > inspect.out && du -sh inspect.out && rm -f inspect.out
 76K	inspect.out
{code}

You can reproduce it using the above image with any framework. I tested it with aurora.

Here is a sample failure: http://pastebin.com/CPmZy25z

[1] https://github.com/apache/mesos/blob/0.21.1/src/docker/docker.cpp#L804



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