Re: BDR: Strange values in pg_stat_replication

Hi!
Never mind this one.
Wrong config of synchronous replication by me.

It looks good once I got the replication setup correctly.


Kind regards, Martin


13 jul 2014 kl. 23:10 skrev Martin Gudmundsson :

> Hi!
> I wanted to test synchronous bi-dircetional replication using synchronous_standby_names with bdr.
> 
> So I set this up as follows:
> Node alpha has the following settings in postgresql.conf
> 
> port=5432
> wal_level = 'logical'
> max_replication_slots = 3
> max_wal_senders = 4
> synchronous_standby_names=’beta'
> shared_preload_libraries = 'bdr'
> bdr.connections='beta'
> bdr.beta_dsn = ’dbname=bdrdemo username=postgres port=5433'
> track_commit_timestamp = on
> 
> 
> Node beta has the following settings in postgresql.conf
> 
> port=5433
> wal_level = 'logical'
> max_replication_slots = 3
> max_wal_senders = 4
> synchronous_standby_names=’alpha'
> shared_preload_libraries = 'bdr'
> bdr.connections=’alpha'
> bdr.alpha_dsn = ’dbname=bdrdemo username=postgres port=5432'
> track_commit_timestamp = on§	1
> bdr.alpha_init_replica = on
> bdr.alpha_replica_local_dsn = 'dbname=bdrdemo user=postgres port=5432’
> 
> It seems to work fine. Bringing down one node stalls the other one, just like synch rep should.
> 
> But the view pg_stat_replication view shows async in sync_state column. Shouldn’t this really be sync?
> 
> 
> Kind regards, Martin
> 
>