Ian Barwick ae7963dc64 repmgr: automatically create slot name if missing ...

It's possible that a node was registered with "use_replication_slots=false"
but that was later changed to "use_replication_slots=true". If the node
was not subsequently re-registered, the node record will contain an empty
slot name, which will cause any slot creation operation during
"standby follow" or "node rejoin" to fail.

To prevent this happening, check for an empty slot name and automatically
set before proceeding.

Addresses GitHub #343.

2018-01-11 11:13:41 +09:00

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