| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | "Drouvot, Bertrand" <bertranddrouvot(dot)pg(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Jeff Davis <pgsql(at)j-davis(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>, Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com>, fabriziomello(at)gmail(dot)com, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>, Rahila Syed <rahila(dot)syed(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Minimal logical decoding on standbys |
| Date: | 2023-04-08 04:01:20 |
| Message-ID: | 20230408040120.twyrkski5yzqhgyr@awork3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2023-04-08 09:15:05 +0530, Amit Kapila wrote:
> The new approach for invalidation looks clean. BTW, I see minor
> inconsistency in the following two error messages (errmsg):
Thanks for checking.
> if (MyReplicationSlot->data.invalidated == RS_INVAL_WAL)
> ereport(ERROR,
> (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
> errmsg("can no longer get changes from replication slot \"%s\"",
> NameStr(MyReplicationSlot->data.name)),
> errdetail("This slot has been invalidated because it exceeded the
> maximum reserved size.")));
>
> if (MyReplicationSlot->data.invalidated != RS_INVAL_NONE)
> ereport(ERROR,
> (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
> errmsg("cannot read from logical replication slot \"%s\"",
> NameStr(MyReplicationSlot->data.name)),
> errdetail("This slot has been invalidated because it was conflicting
> with recovery.")));
>
> Won't it be better to keep the same errmsg in the above two cases?
Probably - do you have a preference? I think the former is a bit better?
Greetings,
Andres Freund
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