We are working on migrating some mailboxes from one mailbox server to another. The issue we are running into is that only 60% of our transfers work the first time. Has anyone else see this issue?
From watching the logs (mailboxd.log, zmmailboxd.out, zimbra.log on both mailbox systems) I can see the backup starting. I watch the zmmove-<string>.zip in the /opt/zimbra/jetty/work/ be created and build in size. Once the backup is complete I can see it create the SOAP(?) connection to the other mailbox server and send the file over.
On the second mailbox, the system seems to accept the file and begin to restore the account. All completes without errors, but when we try to login to the account it will stop loading at the Zimbra splash screen. If we flip to the standard client, you can view some of the mail, but clicking on anything causes the interface to become jumbled. (as a side note, the Quota reports 0 MB on these accounts, but the admin console reports them correctly).
The weird part is, after we fail a transfer, we flip the zimbraMailTransport & zimbraMailHost back to the original mailbox server, verify the account works and wait. Typically in an hour or so, we try the process again and it will work wonderfully. I haven't found a mailbox that completely won't transfer.
My question is, what else can we do to determine where the issue lies? Are there additional logs I'm unaware of?
Is there anything we can do to raise the probability of a zmmailbox move succeeding the first time?
Any assistance or information, would be appreciated!