From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: Need Warm Fuzzies, ReiserFS (3) Date: Mon, 20 Dec 2004 09:27:37 -0800 Message-ID: <41C70B89.7010000@namesys.com> References: <41C66615.5010206@simutronics.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <41C66615.5010206@simutronics.com> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Jim Miller Cc: reiserfs-list@namesys.com 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.