Horton

Re: PATCH: logical_work_mem and logical streaming of large in-progress transactions

Noah Misch <noah@leadboat.com>

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From: Noah Misch <noah@leadboat.com>
To: Amit Kapila <amit.kapila16@gmail.com>
Cc: Dilip Kumar <dilipbalaut@gmail.com>, Erik Rijkers <er@xs4all.nl>, Jeff Janes <jeff.janes@gmail.com>, Kuntal Ghosh <kuntalghosh.2007@gmail.com>, Michael Paquier <michael@paquier.xyz>, Peter Eisentraut <peter.eisentraut@2ndquadrant.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Tomas Vondra <tomas.vondra@2ndquadrant.com>
Date: 2020-11-29T21:44:41Z
Lists: pgsql-hackers

Commits

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

  1. Tighten the concurrent abort check during decoding.

  2. Improve hash_create()'s API for some added robustness.

  3. Use HASH_BLOBS for xidhash.

  4. Fix initialization of RelationSyncEntry for streaming transactions.

  5. Remove unused function declaration in logicalproto.h.

  6. Add additional tests to test streaming of in-progress transactions.

  7. Fix inline marking introduced in commit 464824323e.

  8. Add support for streaming to built-in logical replication.

  9. Fix the SharedFileSetUnregister API.

  10. Fix comment in procarray.c

  11. Suppress compiler warning in non-cassert builds.

  12. Extend the BufFile interface.

  13. Mark a few logical decoding related variables with PGDLLIMPORT.

  14. Implement streaming mode in ReorderBuffer.

  15. Extend the logical decoding output plugin API with stream methods.

  16. WAL Log invalidations at command end with wal_level=logical.

  17. Immediately WAL-log subtransaction and top-level XID association.

  18. Allow logical replication to transfer data in binary format.

  19. Only superuser can set sslcert/sslkey in postgres_fdw user mappings

  20. Track statistics for spilling of changes from ReorderBuffer.

  21. Add logical_decoding_work_mem to limit ReorderBuffer memory usage.

  22. logical decoding: process ASSIGNMENT during snapshot build

  23. Emit invalidations to standby for transactions without xid.

On Mon, Sep 07, 2020 at 12:00:41PM +0530, Amit Kapila wrote:
> Thanks, I have pushed the last patch. Let's wait for a day or so to
> see the buildfarm reports

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=sungazer&dt=2020-09-08%2006%3A24%3A14
failed the new 015_stream.pl test with the subscriber looping like this:

2020-09-08 11:22:49.848 UTC [13959252:1] LOG:  logical replication apply worker for subscription "tap_sub" has started
2020-09-08 11:22:54.045 UTC [13959252:2] ERROR:  could not open temporary file "16393-510.changes.0" from BufFile "16393-510.changes": No such file or directory
2020-09-08 11:22:54.055 UTC [7602182:1] LOG:  logical replication apply worker for subscription "tap_sub" has started
2020-09-08 11:22:54.101 UTC [31785284:4] LOG:  background worker "logical replication worker" (PID 13959252) exited with exit code 1
2020-09-08 11:23:01.142 UTC [7602182:2] ERROR:  could not open temporary file "16393-510.changes.0" from BufFile "16393-510.changes": No such file or directory
...

What happened there?