Re: wal_level not changing

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On 04/09/2017 18:58, Sumeet Shukla wrote:
Tried but does not work.

I see below output when I check the status of the service.

systemctl status postgresql-9.6

postgresql-9.6.service - PostgreSQL 9.6 database server

   Loaded: loaded (/usr/lib/systemd/system/postgresql-9.6.service; enabled; vendor preset: disabled)

   Active: failed (Result: exit-code) since Mon 2017-09-04 11:25:42 EDT; 27min ago

  Process: 28093 ExecStop=/opt/postgresql/9.6/bin/pg_ctl stop -m fast -w -D /data/9.6/data (code=exited, status=1/FAILURE)

  Process: 28052 ExecStart=/opt/postgresql/9.6/bin/pg_ctl start -w -t ${TimeoutSec} -D /data/9.6/data -l /data/9.6/data/pg_log/startup.log (code=exited, status=0/SUCCESS)

 Main PID: 28054 (code=exited, status=0/SUCCESS)


Sep 04 11:25:36 ashprmlpdb-p05 systemd[1]: Starting PostgreSQL 9.6 database server...

Sep 04 11:25:36 ashprmlpdb-p05 systemd[1]: Started PostgreSQL 9.6 database server.

Sep 04 11:25:42 ashprmlpdb-p05 systemd[1]: postgresql-9.6.service: control process exited, code=exited status=1

Sep 04 11:25:42 ashprmlpdb-p05 systemd[1]: Unit postgresql-9.6.service entered failed state.

Sep 04 11:25:42 ashprmlpdb-p05 systemd[1]: postgresql-9.6.service failed.



Just check the value of your current wal_level
cat /data/9.6/data/postgresql.conf /data/9.6/data/postgresql.auto.conf | egrep -v '^#|^$' | grep wal_level | tail -1
and your max_wal_senders
cat /data/9.6/data/postgresql.conf /data/9.6/data/postgresql.auto.conf | egrep -v '^#|^$' | grep max_wal_senders | tail -1
Make sure this as suggested.
Then, for the moment try to start pgsql as :
/opt/postgresql/9.6/bin/pg_ctl start -w -D /data/9.6/data
echo $?
^^^ what does it return? How does your stderr say?

Thanks & Regards,
Sumeet Shukla


On Mon, Sep 4, 2017 at 9:20 PM, Vasilis Ventirozos <v.ventirozos@xxxxxxxxx> wrote:
try ALTER SYSTEM  set wal_level = 'minimal';
and then restart , just make sure that archiving is disabled first.

Vasilis Ventirozos


On 4 Sep 2017, at 18:42, Sumeet Shukla <sumeet.k.shukla@xxxxxxxxx> wrote:


Hi,

update pg_settings set reset_val='minimal' where name='wal_level';

ERROR:  parameter "wal_level" cannot be changed without restarting the server

 

set wal_level='minimal';

ERROR:  parameter "wal_level" cannot be changed without restarting the server


update pg_settings set setting='minimal' where name='wal_level';


ERROR:  parameter "wal_level" cannot be changed without restarting the server


Even after restarting and reloading the server multiple times the setting does not update and remains as below:

show wal_level;

+-----------+

| wal_level |

+-----------+

| replica   |


+-----------+



Thanks & Regards,
Sumeet Shukla




-- 
Achilleas Mantzios
IT DEV Lead
IT DEPT
Dynacom Tankers Mgmt

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