Document swap file resizing

Following adoption of TPA-RFC-55: Swap file policy, we should document how to resize the ganeti installer-created swap file for instances that require more swap space.

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assigned to @lavamind

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marked this issue as related to #41115 (closed)

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mentioned in commit wiki-replica@3620fdef

Done.

closed

i think you're missing a step here:

 9. consider expanding the swap file if memory requirements are
    expected to be higher than usual on this system, such a large database
    servers, GitLab instances, etc. the steps below will recreate a 1G
    `/swapfile` volume:

        swapoff -a &&
        dd if=/dev/zero of=/swapfile bs=1M count=1024 &&
        chmod 0600 /swapfile &&
        mkswap /swapfile &&
        swapon -a

... namely adding the said swap file to /etc/fstab... i understand we might be assuming it's already present, but it's possible some installers might not be using a swapfile... so maybe this would better belong in the existing "partitions have been correctly setup" section?

reopened

mentioned in commit wiki-replica@b003eb19

closed