[Lustre-discuss] Setting debug level in 1.6.5.1

[Sheila Barthel]

Perhaps you are looking at an older manual version? The current Lustre 
manual (v1.12), available at http://manual.lustre.org, uses "lnet.debug"

http://manual.lustre.org/manual/LustreManual16_HTML/ConfiguringLustreNetwork.html#50446387_pgfId-5529

Sheila

Andreas Dilger wrote:
> On Jul 09, 2008  01:29 -0500, Dennis Nelson wrote:
>   
>> The Lustre manual discuses setting debug to a bitmask of 0x3f0400.  It also
>> says that you can verify the debug level used with the following command:
>>
>> # sysctl portals.debug
>>
>> I am running Lustre 1.6.5.1.  When I run this I get the following:
>>
>> # sysctl portals.debug
>> error: "portals.debug" is an unknown key
>>
>> Is this a typo in the manual or has something changed?
>>     
>
> Yes, manual is out of date here it seems.  It should be "lnet.debug".
> Note also that the default debug level is no longer 0x3f0400 because
> that slows down the system too much under load.
>
>   
>> It also says that I can verify and change the value using the /proc
>> interface.  I currently have:
>>
>> # cat /proc/sys/lnet/debug
>> ioctl neterror warning error emerg ha config console
>>
>> Which I assume is the default since I have not changed it.  What does this
>> represent?  Does this correspond to the 0x3f0400 bitmap?  How would I know?
>>     
>
> Forget about the 0x3f0400 value, and just use the default.
>
> Cheers, Andreas
> --
> Andreas Dilger
> Sr. Staff Engineer, Lustre Group
> Sun Microsystems of Canada, Inc.
>
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