Re: [PERFORM] parse - bind take more time than execute

2011-12-29 Thread Kevin Grittner
MirrorX wrote: > -the table is this -> > \d configurations > Table "public.configurationcontext" One of my concerns was that you might actually be selecting against a view rather than a table, and the above doesn't reassure me that you're not. Why the difference between "configurations" and "

Re: [PERFORM] parse - bind take more time than execute

2011-12-29 Thread MirrorX
thx for your reply :) -the timings come from the log -the table is this -> \d configurations Table "public.configurationcontext" Column | Type | Modifiers ---++--- id| numeric(18,0) |

Re: [PERFORM] Postgresql Replication Performance

2011-12-29 Thread Aleksej Trofimov
On 12/29/2011 05:00 PM, Claudio Freire wrote: Second, is that WAL activity on streaming replication or WAL shipping is documented to contain more data than on non-replicated setups. What is not clear is how much more data. This not only affects our network bandwidth estimations, but also I/O load

Re: [PERFORM] Postgresql Replication Performance

2011-12-29 Thread Merlin Moncure
On Thu, Dec 29, 2011 at 3:33 AM, sgupta wrote: > I am doing POC on Posgtresql replication. I am using latest version of > postgresql i.e. 9.1. There are multiple replication solutions avaliable in > the market (PGCluster, Pgpool-II, Slony-I). Postgresql also provide in-built > replication solution

Re: [PERFORM] Postgresql Replication Performance

2011-12-29 Thread Claudio Freire
On Thu, Dec 29, 2011 at 11:33 AM, Aleksej Trofimov wrote: > Postgres Streaming replication is WAL based replication, so using this type > of replication you will have absolutely identical database servers, what is > best choice for HA and scaling reads. Also this choice is not practically > affect

Re: [PERFORM] Postgresql Replication Performance

2011-12-29 Thread Aleksej Trofimov
On 12/29/2011 11:33 AM, sgupta wrote: I am doing POC on Posgtresql replication. I am using latest version of postgresql i.e. 9.1. There are multiple replication solutions avaliable in the market (PGCluster, Pgpool-II, Slony-I). Postgresql also provide in-built replication solutions (Streaming rep

[PERFORM] Postgresql Replication Performance

2011-12-29 Thread sgupta
I am doing POC on Posgtresql replication. I am using latest version of postgresql i.e. 9.1. There are multiple replication solutions avaliable in the market (PGCluster, Pgpool-II, Slony-I). Postgresql also provide in-built replication solutions (Streaming replication, Warm Standby and hot standby).

Re: [PERFORM] PostgreSQL 9.0.4 blocking in lseek?

2011-12-29 Thread Matteo Beccati
On 28/12/2011 19:41, Matteo Beccati wrote: > On 28/12/2011 19:07, Claudio Freire wrote: >> On Wed, Dec 28, 2011 at 3:02 PM, Matteo Beccati wrote: >>> The query eventually completed in more than 18h. For comparison a normal >>> run doesn't take more than 1m for that specific step. >>> >>> Do you th