Stange IO error while working with large objects. - Mailing list pgsql-general

From Dmitriy Igrishin
Subject Stange IO error while working with large objects.
Date
Msg-id AANLkTi=dcmxttHaf9=9uOD20UbujchQ0+VcuXCSMSRsk@mail.gmail.com
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Responses Re: Stange IO error while working with large objects.
List pgsql-general
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.


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