Alexander Elgert wrote:
Hello,
given is a postgres database in version
------------------------------------------------------------------------
PostgreSQL 7.4.8 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.2.2
Upgrade to 7.4.16 as soon as is convenient - you're missing 8 sets of
bug-fixes.
and there is a table "visit" with 26 million tuples using 8 GB of space
The table is from ofbiz and for logging accesses to the webapplication.
Running a delete command which deletes all but a few tuples causes the
postmaster to allocate memory:
--- 10903 postgres 25 0 214M 213M 10412 R 95.3 10.5 6:07
postmaster
Until all memory and swap is gone - that was 1.4GB of top:SIZE
Do you have any triggers or foreign keys on this table? If so, each of
those will need to be tracked. There may be a memory-leak in 7.4.8
that's since been fixed, probably worth checking the release notes at
the end of the manual.
--
Richard Huxton
Archonet Ltd