Lustre discuss - Jul 2006 - How to ping for status of MDS/MGS server?

Hello,

Is there any way to ping for the status of a remote MDS/MGS server (in
1.6beta4) without the Lustre modules loaded?

Currently I am using netcat to determine whether or not the Lustre port is open:
netcat -v -z -w5 <MGS/MDS_SERVER> 988

However, it is possible for the MGS/MDS server to be down even though
the port is open. Is there a better way of determining the status of a
MDS/MGS server without loading the Lustre modules and parsing the
/proc filesystem?

Thanks!

Not really sure what you''re trying to get at - if the Lustre modules 
aren''t loaded, there
are no Lustre services running.  If the Lustre modules are loaded, you 
can check
/proc/fs/lustre/devices. 
So from a non-Lustre node, ssh mdsnode cat /proc/fs/lustre/devices and 
you''ll
either get "no such file" or the running Lustre obd''s.

EKC wrote:
> Hello,
>
> Is there any way to ping for the status of a remote MDS/MGS server (in
> 1.6beta4) without the Lustre modules loaded?
>
> Currently I am using netcat to determine whether or not the Lustre 
> port is open:
> netcat -v -z -w5 <MGS/MDS_SERVER> 988
>
> However, it is possible for the MGS/MDS server to be down even though
> the port is open. Is there a better way of determining the status of a
> MDS/MGS server without loading the Lustre modules and parsing the
> /proc filesystem?
>
> Thanks!
>
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