fatal: Queue report unavailable - mail system is down

I've got a problem that has happened twice now. I come into work and the server doesn't send or receive mail, but I can log into the web interface.

/var/log/zimbra.log has this in it:

Code:

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Apr 22 06:26:00 mail postfix/postqueue[11570]: fatal: Queue report unavailable - mail system is down

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A "zmcontrol status" shows everything running. So to get it back up I just stop and start it, then everything is fine.

I googled a bit and took a look at my catalina.out in tomcat. There are some errors that have got to do with it. The log is attached.

Also every night I stop zimbra, backup, and then start it again.

no ideas on this one?

Is your sshd running OK on the server ?

yeah, just fine

How much memory does your ZCS server have ? Anything else running on it ? Could you post a top and a free please.

It has 3 gigs of RAM. Just Zimbra runs on this except for a couple backups each night which takes a bunch of RAM because it compresses. The graph is the RAM usage for a week. You can see each night when it runs the backups.

http://www.indigo-networks.com/public/ram.png

Code:

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admin@mail:~$ free -m
            total      used      free    shared    buffers    cached
Mem:          3042      2929        112          0        146      1425
-/+ buffers/cache:      1357      1685
Swap:        8911          0      8910

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Code:

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top - 09:09:35 up 181 days, 18:01,  1 user,  load average: 0.06, 0.12, 0.12
Tasks: 105 total,  2 running, 103 sleeping,  0 stopped,  0 zombie
Cpu(s):  2.0% us,  0.7% sy,  0.0% ni, 92.0% id,  5.3% wa,  0.0% hi,  0.0% si
Mem:  3115284k total,  3003616k used,  111668k free,  150592k buffers
Swap:  9124880k total,      92k used,  9124788k free,  1460260k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                       
 2675 zimbra    17  0  6980 4672 1012 S  0.7  0.1  0:06.03 zmmtaconfig                                                                                   
    1 root      16  0  1564  528  460 S  0.0  0.0  0:02.44 init                                                                                           
    2 root      RT  0    0    0    0 S  0.0  0.0  0:00.00 migration/0                                                                                   
    3 root      34  19    0    0    0 S  0.0  0.0  0:00.00 ksoftirqd/0                                                                                   
    4 root      RT  0    0    0    0 S  0.0  0.0  0:00.00 watchdog/0                                                                                     
    5 root      10  -5    0    0    0 S  0.0  0.0  0:00.57 events/0                                                                                       
    6 root      11  -5    0    0    0 S  0.0  0.0  0:00.01 khelper                                                                                       
    7 root      10  -5    0    0    0 S  0.0  0.0  0:00.01 kthread

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The same happened here yesterday.

The server stopped for backup at 7pm and started again.

Zimbra said everything is running. But the same error occured:

Code:

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May 15 19:04:30 mail postfix/postqueue[1900]: fatal: Queue report unavailable - mail system is down

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Release 5.0.4_GA_2101.UBUNTU6 UBUNTU6 FOSS edition
Ubuntu 6.06.2 LTS

I've got the same problem. I come into work and the server doesn't send or receive mail, but I can log into the web interface.

/var/log/zimbra.log has this in it:
Code:

Apr 22 06:26:00 mail postfix/postqueue[11570]: fatal: Queue report unavailable - mail system is down

/var/log/messages, I found this strange log:

Oct 1 03:51:30 mail shutdown: shutting down for system halt
Oct 1 03:51:30 mail init: Switching to runlevel: 0
Oct 1 03:51:31 mail su(pam_unix)[30325]: session opened for user zimbra by (uid=0)
Oct 1 03:51:32 mail zimbramon[30354]: 30354:info: Stopping services
Oct 1 03:51:32 mail zimbramon[30354]: 30354:info: Stopping stats
Oct 1 03:51:32 mail zimbramon[30354]: 30354:info: Stopping mta
Oct 1 03:51:32 mail gpm[3706]: *** info [mice.c(1766)]:
Oct 1 03:51:32 mail gpm[3706]: imps2: Auto-detected intellimouse PS/2
Oct 1 03:51:33 mail zimbramon[30354]: 30354:info: Stopping spell
Oct 1 03:51:33 mail saslauthd[5390]: server_exit : master exited: 5390
Oct 1 03:51:33 mail zimbramon[30354]: 30354:info: Stopping snmp
Oct 1 03:51:33 mail zimbramon[30354]: 30354:info: Stopping archiving
Oct 1 03:51:33 mail amavis[5172]: Net::Server: 2008/10/01-03:51:33 Server closing!
Oct 1 03:51:38 mail zimbramon[30354]: 30354:info: Stopping antivirus


A "zmcontrol status" shows everything running. So to get it back up I just stop and start it, then everything is fine.
zcs-5.0.2 on RedHat 4.0 Update 5

Have the same problem with 5.0.7_GA_2444.RHEL4. We don't have any information for further troubleshooting.

Did anyone ever get a resolution to this?