[Linux-cluster] Re: rsync via GFS

Dmitriy MiksIr miksir at maker.ru
Mon Aug 6 10:39:39 UTC 2007

Great hint's for tune, thanks. But it's help not much - too many files 
(it's full tree of system with /usr /var etc). May be try to use some 
filesystem-in-file (put to gfs shared storage file and init some 
filesystem inside)? Is anyone try something like this?

Maciej Bogucki пишет:
> Dmitriy MiksIr napisa?(a):
>> Hi! I want to sync nodes by run rsync from GFS shared storage to node's
>> filesystem. But preparing of rsync filelist is very slow (due "stat"
>> trouble?). Is any suggestions to sync nodes or tune rsync?
> Hello,
> a) Disable quota, it will increase performance at least 2-3 times:
> gfs_tool settune /gfs quota_account 0
> b) Rsync have to create a lock for each file so You could try to
> increase /proc/cluster/lock_dlm/drop_count
> c) Mount GFS filesystem with noatime flag.
> d) Create direcotries with small number of files - stat() will be faster
> Best Regards
> Maciej Bogucki

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