Hello,
I have a fresh install of Zimbra 6.0.9 installed on a fresh, default install of Ubuntu 10.04 LTS (64-bit):
Code:
$ zmcontrol -v
Release 6.0.9_GA_2686.UBUNTU10_64 UBUNTU10_64 NETWORK edition.
$ uname -a
Linux mail01.xx 2.6.32-26-server #48-Ubuntu SMP Wed Nov 24 10:28:32 UTC 2010 x86_64 GNU/Linux
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS"
The install is with all the default settings.
I have attempted to use the Zimbra Exchange Migration tool, as well as imapsync, in an attempt to sync a single mailbox over from an Exchange server, to the Zimbra server.
The mailbox is fairly large (1GB), has several folders, and many attachments, although none of them over 5MB.
Both the Zimbra Migration Tool, and imapsync, fail around 30% through the transfer. The error message from the migration tool is: "ERROR: service.FAILURE (system failure: ZimbraLdapContext)"
Interestingly enough, if I attempt any "zmprov" commands while the migration is happening, I find that I periodically will also get this message.
Code:
$ zmprov gcf zimbraFileUploadMaxSize
ERROR: service.FAILURE (system failure: ZimbraLdapContext)
$ zmprov gcf zimbraFileUploadMaxSize
zimbraFileUploadMaxSize: 10485760
Sometimes Zimbra seems to recover, and other times I have to do a "zmcontrol restart" to be able to access the web interface again.
I am guessing that some sort of resource limit is being reached, due to the many messages being added to the store at the same time?
The hardware is quite beefy; quad core 2.8GHz Xeon CPU with 64GB of RAM, SAS disks, so I don't think the problem is there. The load average barely hits 1.0 during the migration.
I have searched a bit, and have found pointers to checking the output of "ulimit -a", etc. and all seems fine there.
Are there any non-obvious tweaks that I've missed that I need to do in order to make this work? Or a pointer to what log files I should be looking for more clues in? I've poked around in /opt/zimbra/log, but not found anything useful so far.
Any suggestions most gratefully received.
--m7