Re: [ADMIN] Postgres error: could not open relation base/xxxxx/yyyyy

2010-11-16 Thread Achilleas Mantzios
Also you should check for any CPU malfunction, overheating, etc.. and for motherboard problems as well, power supply, etc... Anyway, your problem is not postgresql (postgresql does not delete its own files). Your problem is below your OS and everything that comes underneath. What do the linux log

Re: [ADMIN] Postgres error: could not open relation base/xxxxx/yyyyy

2010-11-15 Thread Achilleas Mantzios
Whoever did the memory installation, should also have taken care of checking it's working ok. A good idea is to use ECC memory. Does fsck on the remote system run with reporting problems as well?? (it might report problems such as incorrect block counts, missing inodes etc...) Also check for dis

Re: [ADMIN] Postgres error: could not open relation base/xxxxx/yyyyy

2010-11-15 Thread Pablo Delgado Díaz-Pache
Hi Achilleas, Thanks for your quick response. We do have backups and a couple of spare servers running in parallel so we're safe in that sense. Thanks for your advice anyway. To run *memtest86 *we have to go to the datacenter and that will take us a few days. Is there anything we can do remotely?

Re: [ADMIN] Postgres error: could not open relation base/xxxxx/yyyyy

2010-11-15 Thread Achilleas Mantzios
Stop using the system immediately, since many things inserted to the DB might simply be garbage. Inspect your memory with memtest86. I would even suggest moving to a new HW if available, and start working into two parallel directions: a) try to bring your DB into a sane state b) try to fix your

[ADMIN] Postgres error: could not open relation base/xxxxx/yyyyy

2010-11-15 Thread Pablo Delgado Díaz-Pache
Hi all, We've been using postgres for 9 years without a problem until now! Two problems in a very short time! The first one is described in http://postgresql.1045698.n5.nabble.com/Autovacuum-seems-to-block-database-WARNING-worker-took-too-long-to-start-td3264261.html This is another one (not relat