Horton

Re: Minimal logical decoding on standbys

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Amit Khandekar <amitdkhan.pg@gmail.com>
Cc: Rahila Syed <rahila.syed@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-03-18T19:50:38Z
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. Reduce the log level in 035_standby_logical_decoding.pl.

  2. 035_standby_logical_decoding: Add missing waits for replication

  3. For cascading replication, wake physical and logical walsenders separately

  4. Handle logical slot conflicts on standby

  5. Support invalidating replication slots due to horizon and wal_level

  6. Prevent use of invalidated logical slot in CreateDecodingContext()

  7. Replace replication slot's invalidated_at LSN with an enum

  8. Pass down table relation into more index relation functions

  9. Assert only valid flag bits are passed to visibilitymap_set()

  10. Remove unused _bt_delitems_delete() argument.

  11. Add xl_btree_delete optimization.

On 2020-Mar-18, Alvaro Herrera wrote:

> On 2020-Mar-18, Alvaro Herrera wrote:
> 
> > There were conflicts again, so I rebased once more.  Didn't do anything
> > else.
> 
> This compiles fine, but tests seem to hang forever with no output.

well, not "forever", but:

$ make check PROVE_TESTS=t/019_standby_logical_decoding_conflicts.pl PROVE_FLAGS=-v
...
cd /pgsql/source/master/src/test/recovery && TESTDIR='/home/alvherre/mnt/crypt/alvherre/Code/pgsql/build/master/src/test/recovery' PATH="/pgsql/build/master/tmp_install/pgsql/install/master/bin:$PATH" LD_LIBRARY_PATH="/pgsql/build/master/tmp_install/pgsql/install/master/lib"  PGPORT='655432' PG_REGRESS='/home/alvherre/mnt/crypt/alvherre/Code/pgsql/build/master/src/test/recovery/../../../src/test/regress/pg_regress' REGRESS_SHLIB='/pgsql/build/master/src/test/regress/regress.so' /usr/bin/prove -I /pgsql/source/master/src/test/perl/ -I /pgsql/source/master/src/test/recovery -v t/019_standby_logical_decoding_conflicts.pl
t/019_standby_logical_decoding_conflicts.pl .. 
1..24
ok 1 - dropslot on standby created
ok 2 - activeslot on standby created
# poll_query_until timed out executing this query:
# SELECT '0/35C9190' <= replay_lsn AND state = 'streaming' FROM pg_catalog.pg_stat_replication WHERE application_name = 'standby';
# expecting this output:
# t
# last actual query output:
# 
# with stderr:
Bailout called.  Further testing stopped:  system pg_ctl failed
Bail out!  system pg_ctl failed
FAILED--Further testing stopped: system pg_ctl failed
make: *** [Makefile:19: check] Error 255


-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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