ZCS 6.0.5 - high cpu usage, freeze machine

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stich86
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ZCS 6.0.5 - high cpu usage, freeze machine

Postby stich86 » Wed Apr 21, 2010 11:13 am

hi guys,
after 2 week i've got another crash of ZCS server. I'm running it on a virtual macchine (2 CPU, 4GB ram, iSCSI storage) on Citrix XenServer 5.5
Today, when I enter on the admin console to add a new user, after click on the button the interface freeze, and on the console i've full memory and all two cpu at 100%. I cannot ping or ssh into the machine, only method to restore is a force reboot :(
I've also noticied that after some days logger and stats stop to working, and no zmloggctl restart/zmstatctl restart works..
There are some logs to check why this happening? Installation is on SLES10 SP3 64bit and filesystem are reiserfs
Thanks!


stich86
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Posts: 123
Joined: Fri Sep 12, 2014 11:10 pm

ZCS 6.0.5 - high cpu usage, freeze machine

Postby stich86 » Fri Sep 17, 2010 3:43 pm

still have this issue also after 6.0.7 upgrade :(
I've left a "top" on the console of VM to see what's up when the machine hangs. But the top doesn't reporty nothing of special..
machine had a load average of 2.68, cpu at 78%sys, after this TOP freeze (same time of syslog stop) and stay with 100% CPU until a force reboot.
This is the last entry on /var/log/messages before hang:
Sep 17 16:19:00 zm01 zimbramon[17703]: :::47A646A6-C277-11DF-823C-D938DCBACED5:::,0,0,0,,2588607,0,0,0,0,6,5,11,1,765941

Sep 17 16:19:03 zm01 zimbramon[17707]: 17707:info: zmstat mtaqueue.csv: timestamp, KBytes, requests:: 09/17/2010 16:19:03, 0, 0

Sep 17 16:19:04 zm01 zimbramon[17618]: 17618:info: zmstat vm.csv: timestamp, r, b, swpd, free, buff, cache, si, so, bi, bo, in, cs, us, sy, id, wa, st, MemTotal, MemFree, Buffers, Cached, SwapCached, Active, Inactive, HighTotal, HighFree, LowTotal, LowFree, SwapTotal, SwapFree, Dirty, Writeback, AnonPages, Mapped, Slab, CommitLimit, Committed_AS, PageTables, VmallocTotal, VmallocUsed, VmallocChunk, loadavg:: 09/17/2010 16:19:04, 9, 1, 1052180, 24196, 65880, 607896, 3, 1387, 1035, 14068, 921, 462, 56, 10, 27, 7, 0, 4194476, 24196, 65880, 607896, 116104, 2993324, 985320, 0, 0, 4194476, 24196, 1052248, 68, 187284, 0, 3238420, 33264, 67612, 3149484, 6675236, 17132, 34359738367, 9060, 34359729299, 2.03


we have other machines that run intense java application like zimbra, and the "only" difference between those and this is the kernel version:
on zimbra is: 2.6.16.60-0.58.1-xen
on other machines are: 2.6.16.60-0.54.5-xen
I've read same problem on CentOS cause by a kernel bug, but nothin regarding SLES
Can anyone post its kernel version of machine that runs zimbra?
I want to run YOU update (that contains a lot of security fix included kernel) but I don't know if this can creare other problems (like depedency on new RPM?)

Thank you :(
stich86
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Posts: 123
Joined: Fri Sep 12, 2014 11:10 pm

ZCS 6.0.5 - high cpu usage, freeze machine

Postby stich86 » Sat Sep 18, 2010 4:08 am

so I can update without problems? The new rpm doesn't affect the current zimbra installation right?
I see you have Zimbra on SLES10, what kernel version do you have?
thank you!

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