Remove exec PID files after use to prevent memory leaks#3595
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: mheon The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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We have another patch running to do the same for exit files, with a much more in-depth explanation of why it's necessary. Suffice to say that persistent files in tmpfs tied to container CGroups lead to significant memory allocations that last for the lifetime of the file. Based on a patch by Andrea Arcangeli (aarcange@redhat.com). Signed-off-by: Matthew Heon <mheon@redhat.com>
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/lgtm |
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LGTM assuming happy tests. |
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locked - please file new issue/PR
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We have another patch running to do the same for exit files, with a much more in-depth explanation of why it's necessary. Suffice to say that persistent files in tmpfs tied to container CGroups lead to significant memory allocations that last for the lifetime of the file.
I don't think I got all the error cases here, but I'm hesitant to put in a defer, due to the long-running nature of the exec function.