Shane Kumpf created YARN-7729:
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Summary: Add support for setting the PID namespace mode
Key: YARN-7729
URL: https://issues.apache.org/jira/browse/YARN-7729
Project: Hadoop YARN
Issue Type: Sub-task
Components: nodemanager
Reporter: Shane Kumpf
Docker has support for allowing containers to share the PID namespace with the
host or other containers via the {{--pid}} {{docker run}} flag.
There are a number of use cases where this is desirable:
* Monitoring tools running in containers that use process IDs.
* Debug containers that can attach to another container to run strace, gdb, etc.
* Testing Docker on YARN in a container, where the docker socket is bind
mounted.
Enabling this feature should be considered privileged as it exposes host
details inside the container.
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