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From "Dan Osborne (JIRA)" <>
Subject [jira] [Created] (MESOS-6282) CNI isolator should print plugin's stderr
Date Thu, 29 Sep 2016 18:10:20 GMT
Dan Osborne created MESOS-6282:

             Summary: CNI isolator should print plugin's stderr
                 Key: MESOS-6282
             Project: Mesos
          Issue Type: Improvement
          Components: containerization, isolation, network
            Reporter: Dan Osborne

It's quite difficult for both Operators and CNI plugin developers to diagnose CNI plugin errors
in production or in test when the only error information available is the stdout error string
returned by the plugin (assuming it managed to even print its correctly formatted text to

Many CNI plugins print logging information to stderr, [as per the CNI spec|]:

bq. In addition, stderr can be used for unstructured output such as logs.

Therefore, I propose the Mesos CNI Isolator capture the CNI plugin's stderr output and log
it to the Agent Logs, for easier diagnosis.

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