I have been using flow-export to insert flows data
right into a MySQL database with indexed tables.
During the morning ramp up of traffic it was killing
my server and just couldn't keep up with the volume of
flows I was throwing at it. I realized there was no
table locking going on so I hacked up a patch to lock
the table for write before doing the inserts, then
unlocking when finished. We no longer have any
performance issues and my server has no problems
keeping up with the amount of flows we're sending it. 

Here's the ugly patch with links to the FC4 RPMS that
has it applied:
http://voidmain.is-a-geek.net/files/patches/flow-tools-0.68-mysqllock.patch.html

Thanks!
Void


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