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Add general check function "check_replication_slots_available()"

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Make the code previously only used by "standby follow" generally
available - we'll want to use this from "node rejoin" as well.

While we're at it, when reporting failure due to lack of free
replication slots, report the current value of "max_replication_slots".
This commit is contained in:
Ian Barwick
2020-02-03 16:42:04 +09:00
parent ab9c84c655
commit cd7f36a6fd
6 changed files with 48 additions and 25 deletions
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repmgr.h
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@@ -86,6 +86,7 @@
#define UNKNOWN_SYSTEM_IDENTIFIER 0
#define UNKNOWN_PID -1
#define UNKNOWN_REPLICATION_LAG -1
#define UNKNOWN_VALUE -1
#define NODE_NOT_FOUND -1
#define NO_UPSTREAM_NODE -1