Reducing the resident memory per imapsync process

["David Newman" <DNewman at synacor dot com>]

I’m using imapsync 1.255 to move 238,000 users accounts.

I started using imapsync on a maildrop with 35 simultaneous processes but this took the maildrop down after an hour or two.

I’ve moved imapsync to it own machine and testing with 15 connections. It’s been running for 6 hours without a glitch.

 

The reason the maildrop goes down is because with users with large mailboxes, the resident memory for the process can be in the neighborhood of 500 meg to 1 Gig.

 

I’m wondering if changing the Clear (command history) in the IMAP::Client Module from 20 to 0 will break anything with imapsync?

It seems to reduce the resident memory at least 100 Meg.

Is there anything else I can do to lower the memory overhead per process?

I’d like to use imapsync with 50 to 100 connections.

 

Thanks for your time.

 

David Newman