mirror of https://github.com/zulip/zulip.git
faf71eea41
We previously used `zulip-puppet-apply` with a custom config file, with an updated PostgreSQL version but more limited set of `puppet_classes`, to pre-create the basic settings for the new cluster before running `pg_upgradecluster`. Unfortunately, the supervisor config uses `purge => true` to remove all SUPERVISOR configuration files that are not included in the puppet configuration; this leads to it removing all other supervisor processes during the upgrade, only to add them back and start them during the second `zulip-puppet-apply`. It also leads to `process-fts-updates` not being started after the upgrade completes; this is the one supervisor config file which was not removed and re-added, and thus the one that is not re-started due to having been re-added. This was not detected in CI because CI added a `start-server` command which was not in the upgrade documentation. Set a custom facter fact that prevents the `purge` behaviour of the supervisor configuration. We want to preserve that behaviour in general, and using `zulip-puppet-apply` continues to be the best way to pre-set-up the PostgreSQL configuration -- but we wish to avoid that behaviour when we know we are applying a subset of the puppet classes. Since supervisor configs are no longer removed and re-added, this requires an explicit start-server step in the instructions after the upgrades complete. This brings the documentation into alignment with what CI is testing. |
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