Re: Minimal logical decoding on standbys

Amit Khandekar <amitdkhan.pg@gmail.com>

From: Amit Khandekar <amitdkhan.pg@gmail.com>

To: Rahila Syed <rahila.syed@2ndquadrant.com>

Cc: pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2019-12-16T06:25:55Z

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 →

Reduce the log level in 035_standby_logical_decoding.pl.
- 3034dc56ef4b 16.0 landed
035_standby_logical_decoding: Add missing waits for replication
- 57411c82ce86 16.0 landed
For cascading replication, wake physical and logical walsenders separately
- e101dfac3a53 16.0 landed
Handle logical slot conflicts on standby
- 26669757b6a7 16.0 landed
Support invalidating replication slots due to horizon and wal_level
- be87200efd93 16.0 landed
Prevent use of invalidated logical slot in CreateDecodingContext()
- 4397abd0a2af 16.0 landed
Replace replication slot's invalidated_at LSN with an enum
- 15f8203a5975 16.0 landed
Pass down table relation into more index relation functions
- 61b313e47eb9 16.0 landed
Assert only valid flag bits are passed to visibilitymap_set()
- a88a18b1250b 16.0 landed
Remove unused _bt_delitems_delete() argument.
- dc43492e46c7 14.0 cited
Add xl_btree_delete optimization.
- d2e5e20e5711 13.0 cited

On Thu, 12 Dec 2019 at 15:28, Rahila Syed <rahila.syed@2ndquadrant.com> wrote:
>
> Hi Amit,
>
>
> 2.  Following test fails with error.
> make -C src/test/recovery/ check PROVE_TESTS=t/018_standby_logical_decoding_xmins.pl
> #   Failed test 'physical catalog_xmin not null'
> #   at t/018_standby_logical_decoding_xmins.pl line 120.
> #          got: ''
> #     expected: anything else
>
> #   Failed test 'physical catalog_xmin not null'
> #   at t/018_standby_logical_decoding_xmins.pl line 141.
> #          got: ''
> #     expected: anything else
>
> #   Failed test 'physical catalog_xmin not null'
> #   at t/018_standby_logical_decoding_xmins.pl line 159.
> #          got: ''
> #     expected: anything else
> t/018_standby_logical_decoding_xmins.pl .. 20/27 # poll_query_until timed out executing this query:
> #
>
> Physical catalog_xmin is NULL on master after logical slot creation on standby .

Hi, do you consistently get this failure on your machine ? I am not
able to get this failure, but I am going to analyze when/how this can
fail. Thanks





--
Thanks,
-Amit Khandekar
EnterpriseDB Corporation
The Postgres Database Company