[Linux-cluster] lock_dlm but local flocks = true?

[frank]

Hi Steve, I have not answered before because I was on holidays. By the 
way, happy new year.

I have looked /proc/mounts as you told me, and ... surprise:

/dev/mapper/volCluster-lvol0 /mnt/gfs gfs 
rw,hostdata=jid=0:id=196610:first=1,localflocks 0 0

"localflocks" is there! I don't understand because I mount it using 
"/etc/init.d/gfs start" which looks at /etc/fstab, and there the line is:

/dev/volCluster/lvol0    /mnt/gfs     gfs    defaults  0 0

I must admit that there is a particular thing in this system which I 
thought it didn't affect, but I am not so sure now, and that is it is a 
OpenVZ patched kernel. Can this have something to do with gfs mounts?

Thanks for your help once more.

Frank
> Date: Wed, 23 Dec 2009 15:15:28 +0000 From: Steven Whitehouse 
> <swhiteho at redhat.com> To: linux clustering <linux-cluster at redhat.com> 
> Subject: Re: [Linux-cluster] lock_dlm but local flocks = true? 
> Message-ID: <1261581328.14393.113.camel at localhost.localdomain> 
> Content-Type: text/plain Hi, On Wed, 2009-12-23 at 15:53 +0100, frank 
> wrote:
>> >  Hi Steve, thanks for your answer
>> >  but I have not put the "localflocks" mount parameter anywhere. Look at
>> >  "gfs_tool df" output:
>> >  
>> >  # gfs_tool df /mnt/gfs
>> >  /mnt/gfs:
>> >      SB lock proto = "lock_dlm"
>> >      SB lock table = "H-N:gfs01"
>> >      SB ondisk format = 1309
>> >      SB multihost format = 1401
>> >      Block size = 4096
>> >      Journals = 2
>> >      Resource Groups = 200
>> >      Mounted lock proto = "lock_dlm"
>> >      Mounted lock table = "H-N:gfs01"
>> >      Mounted host data = "jid=0:id=196610:first=1"
>> >      Journal number = 0
>> >      Lock module flags = 0
>> >      Local flocks = TRUE
>> >      Local caching = FALSE
>> >      Oopses OK = FALSE
>> >  
>> >  it says 'Mounted lock proto = "lock_dlm" ' because that is what I did.
>> >  So why is it using "local flocks"?
>> >  
>>      
> I don't know. What does it say in /proc/mounts? (or what was your mount
> command line?)
>
> Steve.
>    


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