[Linux-cluster] slow lock performance

[Kiss Zoltán]

Hello,

 

I have a little problem with my GFS2 installation.

My Company have a little bit old business software (written in clipper),
but our programmers can compile itt o linux platform with the xHarbour
compiler. The sw uses DBF databases to store data.

Here is the problem:

We have 100-150 client computers, that mean we must run 100-150
(minimum) application on our servers. The problem is the GFS or GFS2
locking. If i mount the storage GFS/GFS2 partition with the localflocks
option, then the application is running very fast (slower like ext3, but
fast). Without the localflocks option the applications is slow down. If
i enable cluster wide flocks, then my apps running approx. 100-140X
slower.

 

Can anybody help me? Any useful mount option, gfs tune option, etc.etc..

 

 

Thank you in anticipation!

 

 

Best regards,

 

Zoltan Kiss

system administrator

Bárdi Autó Zrt.

zoltan.kiss at bardiauto.hu

+36204300386

 



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