Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello Christian, Christian Hammers wrote: >Hello > >On Wed, Jan 21, 2004 at 01:34:31PM +0100, Lars Ellenberg wrote: > > >>>Hm, as I have to reboot the machines anyway due to a problem >>>with a NIC (which is not involved in DRBD), I will probably rather >>>downgrade to 0.6.4 and see what happens there. >>> >>> >>yes, you are right, this would be nice to know. though I doubt >>that it makes a difference. >>anyways, "never change more than one thing at a time" :) >> >> > >The third night spending my time with this !"§% system... > >First, I switched back to 0.6.4 but the syncall speed stayed slow >so I disconnected the server and rebootet 0.6.10 again. > >Then I commented out the ts-size=5000 parameter to reset it to the >default of 256. Didn't gained me much, the speed even dropped to >about 1100 KB/s :-( > >So the only things that could have an influence and were not yet tried >are: > - Kernel change from 2.4.23 to 2.4.24 due to the security issue > > Vanilla kernel ? Distrib kernel ? > - New CPU+Mainboards (Intel P4 & AMD-Athlon, both about 2,6GHz) > - New internal NICs, both Intel Gigabit with e1000.o driver > > Could you create a ram filesystems on each node and start a rsync. Do you have the possibility to test other NICs ? >As somebody asked me for it I have the iostat and vmstat lines of both >systems here: > >[the primary] > >Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn >dev8-0 58.00 6840.00 8.00 6840 8 > > procs memory swap io system cpu > r b w swpd free buff cache si so bi bo in cs us sy id >... > 0 4 7 0 592748 62792 177188 0 0 3780 188 762 935 0 2 98 > > > > >[the secondary] > >Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn >dev8-0 336.00 0.00 6496.00 0 6496 > > procs memory swap io system cpu > r b w swpd free buff cache si so bi bo in cs us sy id >... > 0 0 0 0 983316 4876 18260 0 0 0 3668 929 1332 0 5 95 > > > > > >>>>>0: cs:SyncingAll st:Secondary/Primary ns:0 nr:1435652 dw:1435652 dr:0 pe:0 ua:15 >>>>> [=====>..............] sync'ed: 26.8% (3668/5004)M >>>>> finish: 0:47:57h speed: 1,319 (1,313) K/sec >>>>>1: cs:SyncingAll st:Secondary/Primary ns:0 nr:1367248 dw:1367248 dr:0 pe:0 ua:15 >>>>> [=====>..............] sync'ed: 26.7% (3672/5004)M >>>>> finish: 0:47:40h speed: 1,336 (1,310) K/sec >>>>> >>>>> > > > Could you give the config of each server (cpu, memory, disk adapter, nic...) the output on each node of: cat /proc/version cat /proc/drbd cat /etc/drbd.conf cat /var/lib/drbd/drbd.conf.parsed /sbin/drbdsetup /dev/nb0 show /sbin/drbdsetup /dev/nb1 show Start only one synchro: /sbin/drbdsetup /dev/nbX replicate During the synchro check the output of: while true ; do cat /proc/drbd; sleep 1; done ps -ef iostat -k 1 vmstat 1 I have 3 clusters running Redhat 9, heartbeat and drbd (2x100Mb/s NICs bonding) without problem if you want I could send you a configs. >bye & thanks for any help, > >-christian- > >P.S.: Changing the nicelevel below zero is not a good idea as the system > becomes quite laggy without any visible speed gain. > > Best regards. Francis