Re: [PERFORM] Postgres slave not catching up (on 9.2)

2014-11-10 Thread Ruben Domingo Gaspar Aparicio
Indeed I could save some IO with noatime. I must say I haven’t found any recommendation about mount options for postgresql, likely because this is not encourage. The ones you see are taking from a Oracle cluster configuration where several nodes see the same files. It's not the case on this setu

Re: [PERFORM] Postgres slave not catching up (on 9.2)

2014-11-28 Thread Ruben Domingo Gaspar Aparicio
Hi Andres, Sorry for my delay to reply. Here below my replies: > I have a couple of questions: > 1) Is the standby actually used for querying? Is it possible that replay >frequently conflicts with active queries? As you don't have >hot_standby_feedback enabled that seems quite possible.

Re: [PERFORM] Postgres slave not catching up (on 9.2)

2014-12-15 Thread Ruben Domingo Gaspar Aparicio
> > The slave (I don't have control on the master) is using 2 NFS file > > systems, one for WALs and another one for the data, on Netapp controllers: > > > > dbnasg401-12a:/vol/dodpupdbtst02 on /ORA/dbs02/PUPDBTST type nfs > > > (rw,remount,hard,nointr,rsize=32768,wsize=32768,tcp,actimeo=0,timeo=

Re: [PERFORM] Postgres slave not catching up (on 9.2)

2014-12-15 Thread Ruben Domingo Gaspar Aparicio
> dbnasg403-12a:/vol/dodpupdbtst03 on /ORA/dbs03/PUPDBTST type nfs (rw, > actimeo=0,hard,nointr,rsize=65536,wsize=65536,tcp,timeo=600) > dbnasg401-12a:/vol/dodpupdbtst02 on /ORA/dbs02/PUPDBTST type nfs (rw, > actimeo=0,hard,nointr,rsize=65536,wsize=65536,tcp,timeo=600) > > to > > dbnasg403-12a:/v