| From: | PG Doc comments form <noreply(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-docs(at)lists(dot)postgresql(dot)org |
| Cc: | anatoli(at)rainforce(dot)org |
| Subject: | pg_isready docs doesn't specify what exactly it is checking |
| Date: | 2022-01-04 18:11:48 |
| Message-ID: | 164131990826.21661.14675569223855830732@wrigleys.postgresql.org |
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| Lists: | pgsql-docs |
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/14/app-pg-isready.html
Description:
`pg_isready` docs don't specify how its different from a port probe - what
does on top of checking that a port is open? Does it send some handshake
message that a server responds to when initialization is finished?
People here are telling that `pg_isready` is not reliable and that
`pg_isready` may return when database is not actually ready
https://github.com/docker-library/postgres/issues/880#issuecomment-1004251102
Without further info about `pg_isready` it is not clear if it should be
filled as a bug. Or if it should be filled as a bug only when an
initialization script is involved.
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