I've checked the disk with badblocs(8). The results are:
File /pgsql/9.0/data0/base/16386/11838.5 (inode #3015588, mod time Wed Mar 30 13:13:13 2011)
has 50 multiply-claimed block(s), shared with 1 file(s):
<The bad blocks inode> (inode #1, mod time Wed Mar 30 15:23:19 2011)
After this, I've dropped the database and create a new one. Problem is solved.
All the same it is interesting, why there was such problem? I am disturbed because
I intend to use large objects in production...
Suggestions ?
2011/3/30 Dmitriy Igrishin
<dmitigr@gmail.com> Hey all,
I've never experienced such problems before pefrorming some tests
on large objects. I am on Ubuntu and my HDD is whole encrypted
(LVM2). I've imported large object ~ 1.5 Gb of size. After this, entire
system lost performance dramaticaly and the disk activity becomes
anomalous.
After reboot everithing is fine with OS, but attempt to remove all
large object results in error:
dmitigr=# select lo_unlink(loid) from (select distinct loid from pg_largeobject) as foo;
ERROR: could not read block 704833 in file "base/16386/11838.5": read only 4096 of 8192 bytes
What does this means -- hardware / OS / Postgres failure ?
Any suggestions ?
--
// Dmitriy.
--
// Dmitriy.
