[Ocfs2-users] Periodic hangs
Emil Noether
granko2 at email.cz
Fri Oct 15 08:16:46 PDT 2010
Hi,
I have a SATABoy2 Nexan storage with 8 disks (SATA Hitachi
HUA721075KLA330) connected to raid 6. Two image servers and two
webservers. Image servers are connected to storage via iSCSI (1GBit) and
webservers are connected via fibre (QLogic ISP2432-based 4Gb). There is
ocfs2 filesystem on the storage disk. When I disconnect webserver1
(identical with webserver2) everything is ok. But when I do
"/etc/init.d/o2cb start", even without mounting the storage disk (so
webserver is actually doing nothing) my project is down every aprox 30
minutes for aprox 2 minutes.
To describe what is down: There is no problem on image servers, but
there is a problem on webserver2. Mounted ocfs2 disk is not responding
(I can't run even "df" command), so load goes to aprox 400 and number of
running apaches reaches it's maximum and so on. The web page is not
responding.
I store all of my logs on local disks so not on ocfs2 disk.
I use 2.6.32 kernel on servers, but I have already tried change it to
some another, but with no result.
I use ocfs2-tools in version 1.4.1-1.
My distro is Debian Lenny (5.0.6) x64.
My /etc/default/o2cb:
O2CB_ENABLED=true
O2CB_BOOTCLUSTER=ocfs2
O2CB_HEARTBEAT_THRESHOLD=14
O2CB_IDLE_TIMEOUT_MS=10000
O2CB_KEEPALIVE_DELAY_MS=5000
O2CB_RECONNECT_DELAY_MS=2000
My /etc/ocfs2/cluster.conf:
node:
ip_port = 7777
ip_address = 10.0.0.111
number = 0
name = www1
cluster = ocfs2
node:
ip_port = 7777
ip_address = 10.0.0.112
number = 1
name = ww2
cluster = ocfs2
node:
ip_port = 7777
ip_address = 10.0.0.121
number = 2
name = img1
cluster = ocfs2
node:
ip_port = 7777
ip_address = 10.0.0.122
number = 3
name = img2
cluster = ocfs2
cluster:
node_count = 4
name = ocfs2
Any help is very appreciated,
Best Regards,
Emil Noether
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