Ian Barwick 701944c194 "standby promote": add check for WAL replay status if replay is paused ...

If WAL replay is paused but WAL is still pending replay, PostgreSQL will ignore
the promote request until WAL replay is unpaused. This may lead to the standby
being promoted at an unpredictable point in time outside of repmgr's
control. Moreover it may not be obvious that this is happening, or why, and
it will appear that an apparently successful promotion attempt has not
actually worked.

To prevent this from happening, repmgr will now refuse to promote the
standy if WAL replay is paused *and* WAL is still pending replay.

GitHub #540.

2019-02-05 13:30:37 +09:00

130 KiB

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