Обсуждение: ERROR: could not open file "pg_tblspc/ issue with replication setup.
Hi,
While testing for a feature I got this tablespace related error while running script.
The Issue is not reproducible everytime, but If I am running the same set of commands after 2-3 runs I am able to reproduce the same error.
--first run - pass
# master slave setup
+ mkdir /tmp/test_bkp/tblsp01
+ ./psql postgres -p 5432 -c 'create tablespace tblsp01 location '\''/tmp/test_bkp/tblsp01'\'';'
CREATE TABLESPACE
+ ./psql postgres -p 5432 -c 'create table test (a text) tablespace tblsp01;'
CREATE TABLE
+ ./psql postgres -p 5432 -c 'create tablespace tblsp01 location '\''/tmp/test_bkp/tblsp01'\'';'
CREATE TABLESPACE
+ ./psql postgres -p 5432 -c 'create table test (a text) tablespace tblsp01;'
CREATE TABLE
#cleanup
--next
#master-slave setup
+ mkdir /tmp/test_bkp/tblsp01
+ ./psql postgres -p 5432 -c 'create tablespace tblsp01 location '\''/tmp/test_bkp/tblsp01'\'';'
CREATE TABLESPACE
+ ./psql postgres -p 5432 -c 'create table test (a text) tablespace tblsp01;'
ERROR: could not open file "pg_tblspc/16384/PG_13_202004074/13530/16388": No such file or directory
+ ./psql postgres -p 5432 -c 'create tablespace tblsp01 location '\''/tmp/test_bkp/tblsp01'\'';'
CREATE TABLESPACE
+ ./psql postgres -p 5432 -c 'create table test (a text) tablespace tblsp01;'
ERROR: could not open file "pg_tblspc/16384/PG_13_202004074/13530/16388": No such file or directory
Attaching command and script which help to reproduce it.
[edb@localhost bin]$ while sh pg_tblsp_wal.sh; do :; done
Thanks & Regards,
Rajkumar Raghuwanshi
Вложения
On Thu, Apr 16, 2020 at 01:56:47PM +0530, Rajkumar Raghuwanshi wrote: > While testing for a feature I got this tablespace related error while > running script. Primary and standby are running on the same host, so they would interact with each other as the tablespace path used by both clusters would be the same (primary uses the path defined by the DDL, which is registered in the WAL record the standby replays). What you are looking for here is to create the tablespace before taking the base backup, and then use the option --tablespace-mapping with pg_basebackup to avoid the issue. -- Michael
Вложения
Re: ERROR: could not open file "pg_tblspc/ issue with replication setup.
От
Rajkumar Raghuwanshi
Дата:
On Fri, Apr 17, 2020 at 9:51 AM Michael Paquier <michael@paquier.xyz> wrote:
On Thu, Apr 16, 2020 at 01:56:47PM +0530, Rajkumar Raghuwanshi wrote:
> While testing for a feature I got this tablespace related error while
> running script.
Primary and standby are running on the same host, so they would
interact with each other as the tablespace path used by both clusters
would be the same (primary uses the path defined by the DDL, which is
registered in the WAL record the standby replays). What you are
looking for here is to create the tablespace before taking the base
backup, and then use the option --tablespace-mapping with
pg_basebackup to avoid the issue.
Thanks for the help.
--
Michael