Re: Minimal logical decoding on standbys
Andres Freund <andres@anarazel.de>
From: Andres Freund <andres@anarazel.de>
To: Amit Khandekar <amitdkhan.pg@gmail.com>
Cc: tushar <tushar.ahuja@enterprisedb.com>, Petr Jelinek <petr.jelinek@2ndquadrant.com>, Robert Haas <robertmhaas@gmail.com>, Craig Ringer <craig@2ndquadrant.com>, Petr Jelinek <petr@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2019-05-30T14:17:23Z
Lists: pgsql-hackers
Commits
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API reference →
-
Reduce the log level in 035_standby_logical_decoding.pl.
- 3034dc56ef4b 16.0 landed
-
035_standby_logical_decoding: Add missing waits for replication
- 57411c82ce86 16.0 landed
-
For cascading replication, wake physical and logical walsenders separately
- e101dfac3a53 16.0 landed
-
Handle logical slot conflicts on standby
- 26669757b6a7 16.0 landed
-
Support invalidating replication slots due to horizon and wal_level
- be87200efd93 16.0 landed
-
Prevent use of invalidated logical slot in CreateDecodingContext()
- 4397abd0a2af 16.0 landed
-
Replace replication slot's invalidated_at LSN with an enum
- 15f8203a5975 16.0 landed
-
Pass down table relation into more index relation functions
- 61b313e47eb9 16.0 landed
-
Assert only valid flag bits are passed to visibilitymap_set()
- a88a18b1250b 16.0 landed
-
Remove unused _bt_delitems_delete() argument.
- dc43492e46c7 14.0 cited
-
Add xl_btree_delete optimization.
- d2e5e20e5711 13.0 cited
Hi,
On 2019-05-30 19:46:26 +0530, Amit Khandekar wrote:
> @@ -1042,7 +1042,8 @@ ReplicationSlotReserveWal(void)
> if (!RecoveryInProgress() && SlotIsLogical(slot))
> {
> ....
> }
> else
> {
> - restart_lsn = GetRedoRecPtr();
> + restart_lsn = SlotIsLogical(slot) ?
> + GetXLogReplayRecPtr(&ThisTimeLineID) : GetRedoRecPtr();
>
> But then when I do pg_create_logical_replication_slot(), it hangs in
> DecodingContextFindStartpoint(), waiting to find new records
> (XLogReadRecord).
But just till the primary has logged the necessary WAL records? If you
just do CHECKPOINT; or such on the primary, it should succeed quickly?
Greetings,
Andres Freund