Date: Mon, 13 Nov 2006 20:02:26 +0300 From: Eygene Ryabinkin <rea-fbsd@codelabs.ru> To: Erik Udo <erik.u@dnainternet.net> Cc: freebsd-hackers@freebsd.org Subject: Re: unionfs in livecd? Message-ID: <20061113170226.GP1044@codelabs.ru> In-Reply-To: <455890A5.7090506@dnainternet.net> References: <455890A5.7090506@dnainternet.net>
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Erik, good day! > So, how is unionfs? I heard it's still buggy especially if you mount multiple > memory devices. At least in 6.2-BETA the original unionfs leads to random locks for disk-based partitions. I can reproduce it in 15-30 minutes of using unionfs-mounted filesystem. > I found a link to a patch from the freesbie-projects website that somehow > patches the current. > http://people.freebsd.org/%7Edaichi/unionfs/ > Should i use this? The unionfs patchsets from Daichi Goto are very good, at least for me: I've not expirienced any lockups since 6.1. So, you probably should give it a try. My usage of unionfs-mounted filesystems is connected with sequentially serving large data transfers (about 2 Gb in a couple of minutes) to a moderate number of clients (aroung 100). These transfers are not frequent, but as they go they can produce a huge load spike to a server's filesystem. Such spikes are definitely locking up the filesystem with the original unionfs. -- Eygene
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