Trying to get my new storage server synced up using dsync replication with SSH. Followed the wiki and everything works great for the initial sync, for about 4 hours, then I get some errors and it stops replicating:

dsync-local(user@host.com): Warning: Failed to do incremental sync for mailbox INBOX, retry with a full sync dsync-local(user@host.com): Error: Remote command returned error 75: ssh -lusername <remote_ip> doveadm dsync-server -uuser@host.com -U

It happened around 2am. I restarted the new server dovecot process and it started to copy back up again, and then happened about four hours later. I have about 10,000 accounts, and it chugs through the list to replicate pretty well (~300Mbps), so I know it's working. Just not sure why it's failing after it's working so great.

Running 2.2.13 on both on FreeBSD.

Both show this: # doveadm replicator status Queued 'sync' requests 0 Queued 'high' requests 0 Queued 'low' requests 0 Queued 'failed' requests 0 Queued 'full resync' requests 5645 Waiting 'failed' requests 0 Total number of known users 9957

Any ideas? Suggestions?

Thanks,

Cassidy