[Linux-cluster] GFS lock cache or bug?

[Wendy Cheng]

Ja S wrote:
> Hi Wendy:
>
> Thank you very much for the kind answer.
>
> Unfortunately, I am using Red Hat Enterprise Linux WS
> release 4 (Nahant Update 5) 2.6.9-42.ELsmp.
>
> When I ran gfs_tool gettune /mnt/ABC, I got:
>   
[snip] ..
>
>
> There is no glock_purge option. I will try to tune
> demote_secs, but I don't think it will fix 'ls -la'
> issue.
>   
No, it will not. Don't waste your time. Will try to explain this more 
whenever I get a chance (but not right now).
>
> By the way, could you please kindly direct me to a
> place where I can find detailed explanations of these
> tunable options?
>
>
>   

There is one called readme.gfs_tune - in theory, it is in: 
http://people.redhat.com/wcheng/Patches/GFS/readme.gfs_tune.

Just check few minutes ago ... my people page seems to have become Bob 
Peterson's people page but large amount of my old write-ups and 
unpublished patches still there. So if you type "wcheng", you probably 
will get "rpeterso" - contents are mostly the same though. 

There are also few GFS1/GFS2/NFS patches, as well as the detailed NFS 
over GFS documents, GFS glock write-ups, etc, in the (people's page) 
"Patches" and "Project" directories. Feel free to peek and/or try them 
out (but I suspect they'll disappear soon).

On the other hand, if GFS2 is out in time, there is really no point to 
mess around with GFS1 any more - it is old and outdated anyway.

-- Wendy