RE: Perform streaming logical transactions by background workers and parallel apply

Shinoda, Noriyoshi <noriyoshi.shinoda@hpe.com>

From: "Shinoda, Noriyoshi (PN Japan FSIP)" <noriyoshi.shinoda@hpe.com>

To: Amit Kapila <amit.kapila16@gmail.com>, "houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>

Cc: Masahiko Sawada <sawada.mshk@gmail.com>, "wangw.fnst@fujitsu.com" <wangw.fnst@fujitsu.com>, Peter Smith <smithpb2250@gmail.com>, "shiy.fnst@fujitsu.com" <shiy.fnst@fujitsu.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Dilip Kumar <dilipbalaut@gmail.com>

Date: 2023-01-09T09:32:01Z

Lists: pgsql-hackers

Attachments

monitoring_wait_event_v1.diff (application/octet-stream) patch v1

Hi, Thanks for the great new feature.

Applied patches include adding wait events LogicalParallelApplyMain, LogicalParallelApplyStateChange. 
However, it seems that monitoring.sgml only contains descriptions for pg_locks. The attached patch adds relevant wait event information.
Please update if you have a better description.

Noriyoshi Shinoda
-----Original Message-----
From: Amit Kapila <amit.kapila16@gmail.com> 
Sent: Monday, January 9, 2023 5:51 PM
To: houzj.fnst@fujitsu.com
Cc: Masahiko Sawada <sawada.mshk@gmail.com>; wangw.fnst@fujitsu.com; Peter Smith <smithpb2250@gmail.com>; shiy.fnst@fujitsu.com; PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>; Dilip Kumar <dilipbalaut@gmail.com>
Subject: Re: Perform streaming logical transactions by background workers and parallel apply

On Sun, Jan 8, 2023 at 11:32 AM houzj.fnst@fujitsu.com <houzj.fnst@fujitsu.com> wrote:
>
> On Sunday, January 8, 2023 11:59 AM houzj.fnst@fujitsu.com <houzj.fnst@fujitsu.com> wrote:
> > Attach the updated patch set.
>
> Sorry, the commit message of 0001 was accidentally deleted, just 
> attach the same patch set again with commit message.
>

Pushed the first (0001) patch.

--
With Regards,
Amit Kapila.

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Fix invalid memory access during the shutdown of the parallel apply worker.
- 3d144c6c8602 16.0 landed
Fix assertion failure in apply worker.
- de63f8dadee4 16.0 landed
Use elog to report unexpected action in handle_streamed_transaction().
- 781ac42d43ab 16.0 landed
Use appropriate wait event when sending data in the apply worker.
- d9d7fe68d35e 16.0 landed
Allow the logical_replication_mode to be used on the subscriber.
- 9f2213a7c575 16.0 landed
Rename GUC logical_decoding_mode to logical_replication_mode.
- 1e8b61735cfb 16.0 landed
Display the leader apply worker's PID for parallel apply workers.
- d540a02a724b 16.0 landed
Improve the code to decide and process the apply action.
- c981d9145dea 16.0 landed
Document the newly added wait events added by commit 216a784829.
- cd06ccd78fcf 16.0 landed
Perform apply of large transactions by parallel workers.
- 216a784829c2 16.0 landed
Wake up a subscription's replication worker processes after DDL.
- c6e1f62e2cee 16.0 cited
Add copyright notices to meson files
- 8284cf5f746f 16.0 cited
Better document logical replication parameters
- a8500750ca0a 16.0 cited
Add a common function to generate the origin name.
- 776e1c8a5d14 16.0 cited
Harmonize parameter names in storage and AM code.
- bfcf1b34805f 16.0 cited
Avoid using list_length() to test for empty list.
- efd0c16becbf 16.0 cited
Improve two comments related to a boolean DefElem's value
- 8445f5a21d40 16.0 cited
Fix partition table's REPLICA IDENTITY checking on the subscriber.
- 26b3455afaa9 15.0 cited
Fix data inconsistency between publisher and subscriber.
- b7658c24c7c1 15.0 cited
Fix cache look-up failures while applying changes in logical replication.
- 5a97b1325453 15.0 cited