I have a couple of HNodes running openvz.
One of these nodes has a weird issue, wich i cannot seem to debug/resolve.
Let me first list the hardware and relevant info
Kernel : 2.6.24-23-openvz
All in all this node runs fine, however one time per 3 weeks/month the node becomes unresponsive. And cannot be reached with ssh.(also the vz's are unresponsive and cannot be reached)
All that is left is to boot it using the APC.
After reboot the server is ok, and runs fine for another 3weeks/month.
After a reboot i start digging trough the logs but nowhere, and i mean nowhere is there a hint why it became unresponsive
/var/log/messages
Dec 2 21:25:35 hn01 -- MARK --
Dec 2 21:45:35 hn01 -- MARK --
Dec 2 21:57:40 hn01 syslogd 1.5.0#1ubuntu1: restart.
Dec 2 21:57:40 hn01 kernel: Inspecting /boot/System.map-2.6.24-23-openvz
Dec 2 21:57:40 hn01 kernel: Loaded 29198 symbols from /boot/System.map-2.6.24-23-openvz.
21:57 i booted the server via apc
in no single log file i can see why the server became unrepsonsive.
Can someone help me out and tell me how to best debug this server, or does anyone know this behaviour?
I am not oversetting the limits on the hwnode
root@hn01:~# vzmemcheck -v
Output values in %
veid LowMem LowMem RAM MemSwap MemSwap Alloc Alloc Alloc
util commit util util commit util commit limit
101 1.04 105.00 1.76 0.90 35.41 1.00 35.41 38.50
104 2.13 35.00 4.93 2.54 32.39 4.66 32.39 35.47
102 0.82 52.50 1.07 0.55 33.14 2.24 33.14 36.23
-------------------------------------------------------------------------
Summary: 4.00 192.50 7.75 3.99 100.94 7.90 100.94 110.20
I see another topic on this forum with the exact same problem.
Can this be a issue in the kernel?
[Updated on: Thu, 03 December 2009 10:00]
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