07-30-2014 05:19 AM
My understanding of the cm_processes tmpfs is that it is for issues on systems where /var is a no ext mount. We are running on RHEL 6.5 and /var is ext4. Is there a way to prevent CM from mounting this filesystem or, if not, adjusting its size?
07-30-2014 09:31 AM
It's required for distros where /var/run is mounted noexec but we use it unconditonally so that the Agent is operating in a consistent environment across all distros, and certain bits of agent functionality take advantage of this (such as our logic for cleaning out /var/run/cloudera-scm-agent, which unmounts and remounts the tmpfs).
What is your concern? Do you have a particular problem you are trying to solve?
07-30-2014 12:16 PM
Our OS team was asking about this because they saw the tmpfs filesystem allocated to 50% of memory. We weren't able to find a lot of documentation on it and were trying to determine if it was necessary and if so why. This has not caused any issues. I will pass the information along. Thanks.