[Linux-cluster] GFS cluster / DLM locking - Mostly idle but high load

[Gordan Bobic]

On Wed, 17 Oct 2007, Wendy Cheng wrote:

>> > >  Yes. The problem doesn't seem to be so bad when files are in different
>> > >  directories, but when lots of files are being written to the same
>> > >  directory, the load goes up quite badly.
>> > 
>> > 
>> >  Then this should help. Also enable lock_purging if not already done.
>> 
>>
>>  That doesn't seem to work for me. :-(
>>
>>  # gfs_tool settune / glock_purge 50
>>  gfs_tool: can't change tunable parameter glock_purge: Invalid argument
>> 
>
> I didn't follow this thread of discussion very well. I have to assume you're 
> on earlier versions of RHEL 5 ? Newer versions of gfs_kmod should have this 
> tunable (can't recall the exact gfs_kmod version it got included though).

kernel-2.6.18-8.1.14.el5
kmod-gfs-0.1.16-5.2.6.18_8.1.14.el5

Gordan