[Ocfs2-users] Cannot set heartbeat dead threshold

[voinovpa at gmail.com]

Thanks,
I found some info about this issue at http://www.novell.com (Document ID:  
7001469): ocfs2 on SLES10 NTS sanity check (OCFS2 HEARTBEAT)

quote:
"
...
If these checks are done, mode is set to "user" and everything seems to be  
alright, but there are still problems with ocfs2 then the next step should  
be to check the heartbeat settings.
If mode is "kernel" but there are still problems with ocfs2 then the next  
step should be to contact NTS.
...
"

So, Novell recommends user "user" hertbeat mode instead of "kernel".
I'll try to use "hearbeat" + "heartbeat-stonith" packages from SLES  
repository.

13.11.2009 23:45 пользователь Sunil Mushran <sunil.mushran at oracle.com>  
написал:
> Ping Novell Support. The base code works fine. This could be a bug in

> sles10 sp2.



> voinovpa at gmail.com wrote:


> Hi



> I have:

> SLES 10 SP2 (2.6.16.60-0.21-smp)

> ocfs2-tools-1.4.0-0.3

> ocfs2console-1.4.0-0.3



> and I can't change "heartbeat dead threshold" value.



> Content of /etc/sysconfig/o2cb:



> # O2CB_ENABLED: 'true' means to load the driver on boot.

> O2CB_ENABLED=true



> # O2CB_BOOTCLUSTER: If not empty, the name of a cluster to start.

> O2CB_BOOTCLUSTER=ocfs2



> # O2CB_HEARTBEAT_THRESHOLD: Iterations before a node is considered dead.

> O2CB_HEARTBEAT_THRESHOLD=151



> # O2CB_IDLE_TIMEOUT_MS: Time in ms before a network connection is  
> considered dead.

> O2CB_IDLE_TIMEOUT_MS=10000



> # O2CB_KEEPALIVE_DELAY_MS: Max time in ms before a keepalive packet is  
> sent

> O2CB_KEEPALIVE_DELAY_MS=5000



> # O2CB_RECONNECT_DELAY_MS: Min time in ms between connection attempts

> O2CB_RECONNECT_DELAY_MS=2000



> # O2CB_HEARTBEAT_MODE: Whether to use the native "kernel" or the "user"

> # driven heartbeat (for example, for integration with heartbeat 2.0.x)

> O2CB_HEARTBEAT_MODE="kernel"





> so, O2CB_HEARTBEAT_THRESHOLD is 151.



> Then I have restart service o2cb or even reboot server and...:



> # service o2cb status

> Module "configfs": Loaded

> Filesystem "configfs": Mounted

> Module "ocfs2_nodemanager": Loaded

> Module "ocfs2_dlm": Loaded

> Module "ocfs2_dlmfs": Loaded

> Filesystem "ocfs2_dlmfs": Mounted

> Checking O2CB cluster ocfs2: Online

> Heartbeat dead threshold = 31

> Network idle timeout: 10000

> Network keepalive delay: 5000

> Network reconnect delay: 2000

> Checking O2CB heartbeat: Not active



> so, Heartbeat dead threshold is 31!!!



> ok. I'll try use configure...



> # service o2cb configure



> Load O2CB driver on boot (y/n) [y]:

> Cluster to start on boot (Enter "none" to clear) [ocfs2]:

> Specify heartbeat dead threshold (>=7) [151]: 151

> Specify network idle timeout in ms (>=5000) [10000]:

> Specify network keepalive delay in ms (>=1000) [5000]:

> Specify network reconnect delay in ms (>=2000) [2000]:

> Use user-space driven heartbeat? (y/n) [n]:

> Writing O2CB configuration: OK

> O2CB cluster ocfs2 already online



> so, we see that "Specify heartbeat dead threshold" get my current value  
> (151) from /etc/sysconfig/o2cb.



> but again we have:

> # service o2cb status

> ...

> Heartbeat dead threshold = 31

> ...



> trying check file from configfs:

> # cat /sys/kernel/config/cluster/ocfs2/heartbeat/dead_threshold

> 31



> # echo 151 > /sys/kernel/config/cluster/ocfs2/heartbeat/dead_threshold

> # cat /sys/kernel/config/cluster/ocfs2/heartbeat/dead_threshold

> 31



> # ls -l /sys/kernel/config/cluster/ocfs2/heartbeat/dead_threshold

> -rw-r--r-- 1 root root 4096 2009-11-13 17:42  
> /sys/kernel/config/cluster/ocfs2/heartbeat/dead_threshold



> what's a problem?



> ------------------------------------------------------------------------



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