Обсуждение: relcache reference leak with pglogical replication to insert-onlypartitioned table?

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relcache reference leak with pglogical replication to insert-onlypartitioned table?

От
Jeremy Finzel
Дата:
I understand it's not fully supported to replicate to a differently partitioned setup on a subscriber with either pglogical or the native logical replication, however I also know that INSERT triggers can be fired in replication mode.  I have an insert-only OLTP table that I want partitioned only on the subscriber system.  I have this setup using the "old style" partitioning as it is a 9.6 system.

Provider is 9.6.6 pglogical 2.1.1
Subscriber is 9.6.10 pglogical 2.1.1

Everything appears good as far as the data.  It is partitioning correctly.  Queries on the data are planning correctly.  However, I am now getting these WARNING messages constantly.  How concerned should I be?  Is there a fix for this?  Any insight is much appreciated!

2019-01-27 03:12:34.150 GMT,,,135600,,5c4d1f44.211b0,6794,,2019-01-27 03:02:28 GMT,54/0,1057372660,WARNING,01000,"relcache reference leak: relation ""foo_pkey"" not closed",,,,,"apply COMMIT in commit before 14DB/34DB1B78, xid 1476598649 commited at 2019-01-26 21:12:34.071673-06 (action #10) from node replorigin 22",,,,"pglogical apply 16420:2094659706"

Thank you!
Jeremy

Re: relcache reference leak with pglogical replication toinsert-only partitioned table?

От
Michael Paquier
Дата:
On Sat, Jan 26, 2019 at 09:19:49PM -0600, Jeremy Finzel wrote:
> I understand it's not fully supported to replicate to a differently
> partitioned setup on a subscriber with either pglogical or the native
> logical replication, however I also know that INSERT triggers can be fired
> in replication mode.  I have an insert-only OLTP table that I want
> partitioned only on the subscriber system.  I have this setup using the
> "old style" partitioning as it is a 9.6 system.

Logical replication has been added to core in v10, and pglogical is
quite a different thing.  It may be better to contact the folks in
charge of it here:
https://github.com/2ndQuadrant/pglogical
--
Michael

Вложения

Re: relcache reference leak with pglogical replication toinsert-only partitioned table?

От
"craig.ringer"
Дата:


On Sunday, 27 January 2019 11:20:03 UTC+8, Jeremy Finzel wrote:
I understand it's not fully supported to replicate to a differently partitioned setup on a subscriber with either pglogical or the native logical replication, however I also know that INSERT triggers can be fired in replication mode.  I have an insert-only OLTP table that I want partitioned only on the subscriber system.  I have this setup using the "old style" partitioning as it is a 9.6 system.

Provider is 9.6.6 pglogical 2.1.1
Subscriber is 9.6.10 pglogical 2.1.1

Everything appears good as far as the data.  It is partitioning correctly.  Queries on the data are planning correctly.  However, I am now getting these WARNING messages constantly.  How concerned should I be?  Is there a fix for this?  Any insight is much appreciated!

2019-01-27 03:12:34.150 GMT,,,135600,,5c4d1f44.211b0,6794,,2019-01-27 03:02:28 GMT,54/0,1057372660,WARNING,01000,"relcache reference leak: relation ""foo_pkey"" not closed",,,,,"apply COMMIT in commit before 14DB/34DB1B78, xid 1476598649 commited at 2019-01-26 21:12:34.071673-06 (action #10) from node replorigin 22",,,,"pglogical apply 16420:2094659706"

It won't corrupt anything but you can expect resource leaks.

I think there are changes to support this in pglogical3. I don't have any new information on when they might become public, but I do know work has been done to add a plugin mechanism etc as part of work toward opening pglogical3.