From: | "houzj(dot)fnst(at)fujitsu(dot)com" <houzj(dot)fnst(at)fujitsu(dot)com> |
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To: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> |
Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, "tanghy(dot)fnst(at)fujitsu(dot)com" <tanghy(dot)fnst(at)fujitsu(dot)com>, "osumi(dot)takamichi(at)fujitsu(dot)com" <osumi(dot)takamichi(at)fujitsu(dot)com>, Alexey Lesovsky <lesovsky(at)gmail(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Greg Nancarrow <gregn4422(at)gmail(dot)com> |
Subject: | RE: Skipping logical replication transactions on subscriber side |
Date: | 2021-09-24 08:53:10 |
Message-ID: | OS0PR01MB57168AD0C40DCB29F72ED70394A49@OS0PR01MB5716.jpnprd01.prod.outlook.com |
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On Tuesday, September 21, 2021 12:53 PM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
>
> I've attached the updated version patches. Please review them.
Thanks for updating the patch,
here are a few comments on the v14-0001 patch.
1)
+ hash_ctl.keysize = sizeof(Oid);
+ hash_ctl.entrysize = sizeof(SubscriptionRelState);
+ not_ready_rels_htab = hash_create("not ready relations in subscription",
+ 64,
+ &hash_ctl,
+ HASH_ELEM | HASH_BLOBS);
+
ISTM we can pass list_length(not_ready_rels_list) as the nelem to hash_create.
2)
+ /*
+ * Search for all the dead subscriptions and error entries in stats
+ * hashtable and tell the stats collector to drop them.
+ */
+ if (subscriptionHash)
+ {
...
+ HTAB *htab;
+
It seems we already delacre a "HTAB *htab;" in function pgstat_vacuum_stat(),
can we use the existing htab here ?
3)
PGSTAT_MTYPE_RESETREPLSLOTCOUNTER,
+ PGSTAT_MTYPE_SUBSCRIPTIONERR,
+ PGSTAT_MTYPE_SUBSCRIPTIONERRRESET,
+ PGSTAT_MTYPE_SUBSCRIPTIONERRPURGE,
+ PGSTAT_MTYPE_SUBSCRIPTIONPURGE,
PGSTAT_MTYPE_AUTOVAC_START,
Can we append these values at the end of the Enum struct which won't affect the
other Enum values.
Best regards,
Hou zj
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