Question about GFS2 journal size

["Nicolas Ross" <rossnick-lists@xxxxxxxxxxx>]

The default journal size for gfs2 is 128 megs. We have a 8 node cluster, so 
I create 10, just in case. So that yields to roughly 1.3 gig the size of an 
empty filesystem.

For some applications, I wish to create smaller file systems, like bellow 1 
gig. So to have 1.3 gig of journal for a 500 megs FS is like overkill. 
What's the use of the journal and can I lower down to a more proprotionate 
size for my application, like 16 or 32 meg each ? 

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