Re: database lagging

yes, I'm running replication database.  Parameters below are on both master and slave's postgresql.conf
wal_level = replicasynchronous_commit = onsynchronous_standby_names ='*'
server storage is fine.  Plenty of spaces on pg_wal (local), only 5% used from 80G.  Look like only all write have problems and read is ok.

Bach-Nga

No one in this world is pure and perfect.  If you avoid people for their mistakes you will be alone. So judge less, love, and forgive more.To call him a dog hardly seems to do him justice though in as much as he had four legs, a tail, and barked, I admit he was, to all outward appearances. But to those who knew him well, he was a perfect gentleman (Hermione Gingold)
**Live simply **Love generously **Care deeply **Speak kindly.*** Genuinely rich *** Faithful talent *** Sharing success

On Friday, July 23, 2021, 03:11:58 PM EDT, Avinash Kumar <avinash(dot)vallarapu(at)gmail(dot)com> wrote:

Hi, 
On Fri, Jul 23, 2021 at 2:52 PM Pepe TD Vo <pepevo(at)yahoo(dot)com> wrote:

I am doing CIS Benchmart on Postgreql 12.  After alter parameters and when I tried to create a new role.  It's lagging and didn't prompt out the result, until I hit the ctl C key.  Even alter role.  All I needed to hit ctl C key if not, it hung there for ever.  Is there a way to fix it?
postgres=# create role appuser;^CCancel request sentCREATE ROLE
I would only expect such a behaviour when there is Synchronous Replication enabled but the Standby is not reachable. 
Check the parameters : synchronous_mode combined with synchronous_standby_names. 

postgres=# ALTER ROLE appuser NOSUPERUSER;^CCancel request sentALTER ROLE
 postgres=# ALTER ROLE appuser NOREPLICATION;^CCancel request sentALTER ROLE
postgres=# ALTER ROLE appuser NOCREATEROLE;^CCancel request sentALTER ROLE
postgres=# ALTER ROLE appuser NOHERIT;^CCancel request sentALTER ROLE

--
Regards,
Avinash VallarapuCEO,MigOps Inc.Email: avi(at)migops(dot)com