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note that "standby follow" requires a primary to be available

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While it's technically possible to have a standby follow another
standby while the primary is not available, repmgr will not be able
to update its metadata, which will cause Confusion and Chaos.

Update the documentation to make this clear, and provide a more helpful
error message if this situation occurs. The operation previously
failed anyway, but with an unhelpful message about not being able to
find a node record.
This commit is contained in:
Ian Barwick
2019-06-11 15:14:17 +09:00
parent 3469152314
commit 09979eaa91
4 changed files with 66 additions and 41 deletions
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@@ -24,6 +24,7 @@
repmgr: ensure BDR2-specific functionality cannot be used on
BDR3 and later (Ian)
repmgr: canonicalize the data directory path (Ian)
repmgr: note that "standby follow" requires a primary to be available (Ian)
repmgrd: monitor standbys attached to primary (Ian)
repmgrd: add "primary visibility consensus" functionality (Ian)
repmgrd: fix memory leak which occurs while the monitored PostgreSQL