Re: [PERFORM] Performance issue - 2 linux machines, identical configs, different performance

2009-06-17 Thread Mark Steben
nterprises -Original Message- From: pgsql-performance-ow...@postgresql.org [mailto:pgsql-performance-ow...@postgresql.org] On Behalf Of Dave Dutcher Sent: Wednesday, June 17, 2009 1:39 PM To: 'Mark Steben'; pgsql-performance@postgresql.org Cc: 'Rich Garabedian' Subject: Re: [PERFOR

Re: [PERFORM] Performance issue - 2 linux machines, identical configs, different performance

2009-06-17 Thread Dave Dutcher
>We have two machines. Both running Linux Redhat, both running postgres 8.2.5. >Both have nearly identical 125 GB databases. In fact we use PITR Recovery to >Replicate from one to the other. I have to ask the obvious question. Do you regularly analyze the machine you replicate too? Dave

Re: [PERFORM] Performance issue - 2 linux machines, identical configs, different performance

2009-06-17 Thread Robert Haas
2009/6/17 Mark Steben : > A few details – I can always provide more Could you send: 1. Exact text of query. 2. EXPLAIN ANALYZE output on each machine. 3. VACUUM VERBOSE output on each machine, or at least the last 10 lines. ...Robert -- Sent via pgsql-performance mailing list (pgsql-performa

[PERFORM] Performance issue - 2 linux machines, identical configs, different performance

2009-06-17 Thread Mark Steben
Hi, sorry about the blank post yesterday - let's try again We have two machines. Both running Linux Redhat, both running postgres 8.2.5. Both have nearly identical 125 GB databases. In fact we use PITR Recovery to Replicate from one to the other. The machine we replicate to runs a query w