Re: Need Warm Fuzzies, ReiserFS (3)

[Hans Reiser]

Jim Miller wrote:
Hi everyone,
I have recently been burned by the XFS file system -- After a recent 
system crash/hang we experienced a lot of file corruption and needed 
to restore from a backup that was ~12hrs old.  It seems that XFS keeps 
a lot of journal info in memory and a sudden system crash (hang) 
prevents it from writing out the journal.
We run a few game servers that have a large number of large and small 
files that are actively accessed (and restoring from a backup 12hrs 
old made a lot of our gamers very unhappy).  We were running EXT3 
(which in the past recovered nicely from hangs/crashes) but 
performance was so bad we needed a new FS so 6mos ago a decision was 
made to go with XFS. I would like to switch to ReiserFS (v3) (I 
understand Reiser4 isn't quite ready for production use) and was 
hoping to get the warm fuzzies about making this decision.  I know 
it's much faster than ext3 but at this point I need to feel good about 
it's ability to recover from a sudden system hang/crash/reset.

Thanks,
Jim





It is probably tunable in XFS how long it keeps it in ram.