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

Peter Smith <smithpb2250@gmail.com>

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From: Peter Smith <smithpb2250@gmail.com>
To: "wangw.fnst@fujitsu.com" <wangw.fnst@fujitsu.com>
Cc: Amit Kapila <amit.kapila16@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>, "shiy.fnst@fujitsu.com" <shiy.fnst@fujitsu.com>, "houzj.fnst@fujitsu.com" <houzj.fnst@fujitsu.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-06-23T02:47:55Z
Lists: pgsql-hackers 
FYI - the latest patch set v12* on this thread no longer applies.

[postgres@CentOS7-x64 oss_postgres_misc]$ git apply
v12-0003-A-temporary-patch-that-includes-patch-in-another.patch
error: patch failed: src/backend/replication/logical/relation.c:307
error: src/backend/replication/logical/relation.c: patch does not apply
error: patch failed: src/backend/replication/logical/worker.c:2358
error: src/backend/replication/logical/worker.c: patch does not apply
error: patch failed: src/test/subscription/t/013_partition.pl:868
error: src/test/subscription/t/013_partition.pl: patch does not apply
[postgres@CentOS7-x64 oss_postgres_misc]$

~~

I know the v12-0003 was meant just a temporary patch for something
that may now already be pushed, but it cannot be just skipped either
because then v12-0004 will also fail.

[postgres@CentOS7-x64 oss_postgres_misc]$ git apply
v12-0004-Add-some-checks-before-using-apply-background-wo.patch
error: patch failed: src/backend/replication/logical/relation.c:433
error: src/backend/replication/logical/relation.c: patch does not apply
error: patch failed: src/backend/replication/logical/worker.c:2403
error: src/backend/replication/logical/worker.c: patch does not apply
[postgres@CentOS7-x64 oss_postgres_misc]$

------
Kind Regards,
Peter Smith.
Fujitsu Australia

Commits

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

  1. Fix invalid memory access during the shutdown of the parallel apply worker.

  2. Fix assertion failure in apply worker.

  3. Use elog to report unexpected action in handle_streamed_transaction().

  4. Use appropriate wait event when sending data in the apply worker.

  5. Allow the logical_replication_mode to be used on the subscriber.

  6. Rename GUC logical_decoding_mode to logical_replication_mode.

  7. Display the leader apply worker's PID for parallel apply workers.

  8. Improve the code to decide and process the apply action.

  9. Document the newly added wait events added by commit 216a784829.

  10. Perform apply of large transactions by parallel workers.

  11. Wake up a subscription's replication worker processes after DDL.

  12. Add copyright notices to meson files

  13. Better document logical replication parameters

  14. Add a common function to generate the origin name.

  15. Harmonize parameter names in storage and AM code.

  16. Avoid using list_length() to test for empty list.

  17. Improve two comments related to a boolean DefElem's value

  18. Fix partition table's REPLICA IDENTITY checking on the subscriber.

  19. Fix data inconsistency between publisher and subscriber.

  20. Fix cache look-up failures while applying changes in logical replication.