On Fri, 3 Feb 2006, Dmitry Melekhov wrote:
Patrick Radtke wrote:
Maybe check the log on your replica. Possibly something is going wrong
with sync_server (though it seems unlikely since sync_client -u works)
Yes. Something is wrong with sync_server.
Feb 3 09:10:28 backup syncserver[1899]: Fatal error: Virtual memory
exhausted
It hangs during replication of my mailbox which is about 600 Mb...
Is it possible to get more verbose debug from sync_server?
I saw this problem quite some time ago.
What Operating system are you running? How much memory do you have?
You may want to file a bug report (if there isn't one already). When we
saw the problem during the summer, Ken was unable to duplicate the
situtation which made it hard to test possible solutions. We weren't sure
if it was something wrong with our system or with sync_server.
Anyhow, as a work around we did two different things.
1. Replicate the user a bunch of times. It will fail each time, but should
get further along until it succeeds.
2. If sync_server fails, I think it leaves some files around that it may
or may not clean up. On the replica, shut down cyrus and in the directory
that has your mail (e.g. /var/spool/imap) there should be a folder called
.sync. I found removing this sometimes helped.
3. If replication is stuck on a specific mailbox, then use cyradm to
create the mailbox on the replica, then scp the users files over, run
reconstruct. Then run sync_client and it should clean up any discrepancies.
The good news is that the problem only seems to occur for the inital
copying of data. Staying in sync afterwards never seeems to trigger the
bug.
-Patrick
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