[ClusterLabs] Antw: Re: SuSE12SP3 HAE SBD Communication Issue

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Mon Jan 7 07:41:22 UTC 2019


>>> Andrei Borzenkov <arvidjaar at gmail.com> schrieb am 22.12.2018 um 05:27 in
Nachricht <3897ef3e-220e-7377-9647-24965eab458d at gmail.com>:
> 21.12.2018 12:09, Klaus Wenninger пишет:
>> On 12/21/2018 08:15 AM, Fulong Wang wrote:
>>> Hello Experts,
>>>
>>> I'm New to this mail lists.
>>> Pls kindlyforgive me if this mail has disturb you!
>>>
>>> Our Company recently is evaluating the usage of the SuSE HAE on x86
>>> platform.
>>> Wen simulating the storage disaster fail-over, i finally found that
>>> the SBD communication functioned normal on SuSE11 SP4 but abnormal on
>>> SuSE12 SP3.
>> 
>> I have no experience with SBD on SLES but I know that handling of the
>> logging verbosity-levels has changed recently in the upstream-repo.
>> Given that it was done by Yan Gao iirc I'd assume it went into SLES.
>> So changing the verbosity of the sbd-daemon might get you back
>> these logs.
> 
> Do you mean
> 
> commit 2dbdee29736fcbf0fe1d41c306959b22d05f72b0
> Author: Gao,Yan <ygao at suse.com>
> Date:   Mon Apr 30 18:02:04 2018 +0200
> 
>     Log: upgrade important messages and downgrade unimportant ones
> 
> ?? This commit actually increased severity for message on target node:
> 
> @@ -1180,7 +1180,7 @@ int servant(const char *diskname, int mode, const
> void* argp)
>                 }
> 
>                 if (s_mbox->cmd > 0) {
> -                       cl_log(LOG_INFO,
> +                       cl_log(LOG_NOTICE,
>                                "Received command %s from %s on disk %s",
>                                char2cmd(s_mbox->cmd), s_mbox->from,
> diskname);
> 
> and did not change severity for messages on source node (they are still
> INFO).

I think LOG_NOTICE is the correct one unless further messages are created with
higher priority. However the priority might relate to the message actually
received. A fence message should be logged with LOG_CRIT at least IMHO.

> 
> 
>> And of course you can use the list command on the other node
>> to verify as well.
>> 
>> Klaus
>> 
>>> The SBD device was added during the initialization of the first
>>> cluster node.
>>>
>>> I have requested help from SuSE guys, but they didn't give me any
>>> valuable feedback yet now!
>>>
>>>
>>> Below are some screenshots to explain what i have encountered.
>>> 
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>> on a SuSE11 SP4 HAE cluster,  i  run the sbd test command as below:
>>>
>>>
>>> then there will be some information showed up in the local system
>>> message log
>>>
>>>
>>>
>>> on the second node,  we can found that the communication is normal by 
>>>
>>>
>>>
>>> but when i turn to a SuSE12 SP3 HAE cluster,  ran the same command as
>>> above:
>>>
>>>
>>>
>>> I didn't get any  response in the system message log.
>>>
>>>
>>> "systemctl status sbd" also doesn't give me any clue on this.
>>>
>>>
>>>
>>> 
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>> What could be the reason for this abnormal behavior?  Is there any
>>> problems with my setup?
>>> Any suggestions are appreciate!
>>>
>>> Thanks!
>>>
>>>
>>> Regards
>>> FuLong
>>>
>>>
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>> 
>> 
>> 
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