Re: Introduce XID age and inactive timeout based replication slot invalidation
Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Commits
GET /api/v1/messages/:b64id/commits
the thread's linked commits as JSON, with link sources.
API reference →
-
Add a test for commit ac0e33136a using the injection point.
- 8a695d7998be 18.0 landed
-
Invalidate inactive replication slots.
- ac0e33136abc 18.0 landed
-
Fix incorrect slot type in BuildTupleHashTableExt
- d96d1d5152f3 18.0 cited
-
Allow synced slots to have their inactive_since.
- 6f132ed693b6 17.0 landed
-
Change last_inactive_time to inactive_since in pg_replication_slots.
- 6d49c8d4b4f4 17.0 landed
-
Track last_inactive_time in pg_replication_slots.
- a11f330b5584 17.0 landed
-
Track invalidation_reason in pg_replication_slots.
- 6ae701b4378d 17.0 landed
-
Add option force_initdb to PostgreSQL::Test::Cluster:init()
- ff9e1e764fcc 17.0 cited
-
Add a failover option to subscriptions.
- 776621a5e479 17.0 cited
-
Allow setting failover property in the replication command.
- 73292404370c 17.0 cited
-
Allow to enable failover property for replication slots via SQL API.
- c393308b69d2 17.0 cited
-
Track conflict_reason in pg_replication_slots.
- 007693f2a3ac 17.0 cited
-
Log messages for replication slot acquisition and release.
- 7c3fb505b14e 17.0 cited
-
Remove vacuum_defer_cleanup_age
- 1118cd37eb61 16.0 cited
-
Fix corruption due to vacuum_defer_cleanup_age underflowing 64bit xids
- be504a3e974d 16.0 cited
-
meson: Add initial version of meson based build system
- e6927270cd18 16.0 cited
Hi,
On Tue, Mar 26, 2024 at 02:27:17PM +0530, Bharath Rupireddy wrote:
> Please use the v22 patch set.
Thanks!
1 ===
+reset_synced_slots_info(void)
I'm not sure "reset" is the right word, what about slot_sync_shutdown_update()?
2 ===
+ for (int i = 0; i < max_replication_slots; i++)
+ {
+ ReplicationSlot *s = &ReplicationSlotCtl->replication_slots[i];
+
+ /* Check if it is a synchronized slot */
+ if (s->in_use && s->data.synced)
+ {
+ TimestampTz now;
+
+ Assert(SlotIsLogical(s));
+ Assert(s->active_pid == 0);
+
+ /*
+ * Set the time since the slot has become inactive after shutting
+ * down slot sync machinery. This helps correctly interpret the
+ * time if the standby gets promoted without a restart. We get the
+ * current time beforehand to avoid a system call while holding
+ * the lock.
+ */
+ now = GetCurrentTimestamp();
What about moving "now = GetCurrentTimestamp()" outside of the for loop? (it
would be less costly and probably good enough).
Regards,
--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com