From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleg Drokin Subject: Re: reiserfsck --rebuild-tree on a big filesystem Date: Mon, 25 Nov 2002 18:44:33 +0300 Message-ID: <20021125184433.A32129@namesys.com> References: <20021125143634.GC9006@mail.cekit.cz> <20021125174846.A31778@namesys.com> <20021125153154.GA19254@mail.cekit.cz> Mime-Version: 1.0 Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com Content-Disposition: inline In-Reply-To: <20021125153154.GA19254@mail.cekit.cz> Resent-To: reiserfs-list@namesys.com Resent-Message-Id: <20021125154708.CBF6D2FD004@angband.namesys.com> List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Mira Temp?r Cc: reiserfs-list@namesys.com Hello! On Mon, Nov 25, 2002 at 04:31:54PM +0100, Mira Temp?r wrote: > Oleg Drokin - 25/11/02 17:48 napsal: > | > But after 16 hours of running it, it is still on 0% and whole process > | > would take about 1 month to complete (started at 2000 blocks/sec, > | > but now running at 26b/s). > | This is very strange, We've seen reports of reiserfsck --rebuild-tree > | of 500Gb volume (filled to 170Gb) finished in 8 hours. > Can be the speed affected with high usage of FS (about 99%)? Not at this stage at least. How much RAM do you have? > One point that I've missed in previous e-mail: during rebuild-tree, > there is a lot of messages in log like this: > pass0: vpf-10700: block 1615323, item 6: The item with wrong offset or > length found [9532827 9534032 0x3001 DRCT (2)], len 1000 - deleted This is pretty strange thing indeed. File tail beyond border that is allowed. I do not know how it might have happen. > | Can you please verify that the read speed of your RAID5 is constant in all > | the areas of disk, that it is not opearting in some kind of degraded mode > | and is generally in good state? > raid is reporting to be ok, data read speed are almost the same at > various places: > 0:03.80elapsed 18%CPU > 0:02.97elapsed 19%CPU > 0:01.76elapsed 24%CPU > 0:01.51elapsed 36%CPU > ... (dd reading 40MBytes) BTW, what is the CPU usage when the speed is degraded? (have you already interrupted reiserfsck process? if not then attach to it with gd and obtain a pair of stacktraces for us please.) Bye, Oleg