Dan Osborne created MESOS-6282:
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Summary: CNI isolator should print plugin's stderr
Key: MESOS-6282
URL: https://issues.apache.org/jira/browse/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 stdout).
Many CNI plugins print logging information to stderr, [as per the CNI
spec|https://github.com/containernetworking/cni/blob/master/SPEC.md#result]:
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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