Hello,
I'm hunting for some advice on loading 50,000+ files all less than
32KB to a 7.3.2 database. The table is simple.
create table files (
id int8 not null primary key,
file text not null,
size int8 not null,
uid int not null,
raw oid
);
The script (currently bash) pulls a TAR file out of a queue, unpacks it
to a large ramdisk mounted with noatime and performs a battery of tests
on the files included in the TAR file. For each file in the TAR is will
add the following to a SQL file...
update files set raw=lo_import('/path/to/file/from/tar') where
file='/path/to/file/from/tar';
This file begins with BEGIN; and ends with END; and is fed to Postgres
via a "psql -f sqlfile" command. This part of the process can take
anywhere from 30 to over 90 minutes depending on the number of files
included in the TAR file.
System is a RedHat 7.3 running a current 2.4.20 RedHat kernel and
dual PIII 1.4GHz
2GB of memory
512MB ramdisk (mounted noatime)
mirrored internal SCSI160 10k rpm drives for OS and swap
1 PCI 66MHz 64bit QLA2300
1 Gbit SAN with several RAID5 LUN's on a Hitachi 9910
All filesystems are ext3.
Any thoughts?
Greg
--
Greg Spiegelberg
Sr. Product Development Engineer
Cranel, Incorporated.
Phone: 614.318.4314
Fax: 614.431.8388
Email: gspiegelberg@Cranel.com
Cranel. Technology. Integrity. Focus.
