Re: Introduce XID age and inactive timeout based replication slot invalidation

From: Peter Smith <smithpb2250(at)gmail(dot)com>
To: Nisha Moond <nisha(dot)moond412(at)gmail(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, shveta malik <shveta(dot)malik(at)gmail(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Ajin Cherian <itsajin(at)gmail(dot)com>, Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Introduce XID age and inactive timeout based replication slot invalidation
Date: 2025-02-03 23:38:44
Message-ID: CAHut+Pv3mjQxmv5tHfgX=o=4C2TfX5rNYGS7xWrHBGcSVwr3mQ@mail.gmail.com
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Hi Nisha.

Some review comments for patch v67-0001.

======
src/backend/replication/slot.c

ReportSlotInvalidation:

Please see my previous post [1] where I gave some reasons why I think
the _() macro should be used only for the *common* part of the hint
messages. If you agree, then the following code should be changed.

1.
+ /* translator: %s is a GUC variable name */
+ appendStringInfo(&err_hint, "You might need to increase \"%s\".",
+ "max_slot_wal_keep_size");
break;

Change to:
_("You might need to increase \"%s\".")

~

2.
+ /* translator: %s is a GUC variable name */
+ appendStringInfo(&err_hint, "You might need to increase \"%s\".",
+ "idle_replication_slot_timeout");
+ break;

Change to:
_("You might need to increase \"%s\".")

~

3.
- hint ? errhint("You might need to increase \"%s\".",
"max_slot_wal_keep_size") : 0);
+ err_hint.len ? errhint("%s", _(err_hint.data)) : 0);

Change to:
err_hint.len ? errhint("%s", err_hint.data) : 0);

======
[1] https://www.postgresql.org/message-id/CAHut%2BPuKCv-S%2BPJ2iybZKiqu0GJ1fSuzy2CcvyRViLou98QpVA%40mail.gmail.com

Kind Regards,
Peter Smith.
Fujitsu Australia

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