Hi Sage, After adding osd3, only osd2 is alive. But the whole cluster can be recovered after restarting all dead osds. I read the wiki and reversed the order of my procedure: starting osd before setting crush map. It seems to work ok now. Thanks, Henry On Wed, Aug 11, 2010 at 4:56 AM, Sage Weil <sage@xxxxxxxxxxxx> wrote: > Hi Henry, > > Your osd add procedure looks correct. Did the osd start correct after > this point? Are you able to reproduce the problem with osd logging > turned up (debug osd = 20 in [osd])? > > I just tried this with the latest unstable and wasn't able to reproduce > the problem. > > sage > > On Wed, 11 Aug 2010, Henry C Chang wrote: > >> Hi Wido, >> >> I am running unstable branch (commit: b72c1bb6e9b77e1ab6c2) dated July 30. >> I just uploaded the core dumps to >> >> http://home.anet.net.tw/cycbbb/coredumps/core.2580.gz >> http://home.anet.net.tw/cycbbb/coredumps/core.2602.gz >> >> >> >> On Tue, Aug 10, 2010 at 11:42 PM, Wido den Hollander <wido@xxxxxxxxx> wrote: >> > Hi Henry, >> > >> > Is there a core-dump of these crashes in /? If so, these could help >> > finding the cause of this. >> > >> > See: http://ceph.newdream.net/wiki/Troubleshooting >> > >> > And btw, which version of Ceph are you running? >> > >> > Wido >> > >> > On Tue, 2010-08-10 at 21:09 +0800, Henry C Chang wrote: >> >> Hi, >> >> >> >> I have a ceph cluster: 3 (mon+osd) and 2 (mds). >> >> When I tried to add the 4th osd to the cluster, osd0 and osd1 crashed. >> >> The error logs are attached. >> >> >> >> My procedure to add the 4th osd is: >> >> >> >> add [osd3] in the conf file: /etc/ceph/ceph.conf >> >> ceph -c /etc/ceph/ceph.conf mon getmap -o /tmp/monmap >> >> cosd -c /etc/ceph/ceph.conf -i 3 --mkfs --monmap /tmp/monmap >> >> ceph -c /etc/ceph/ceph.conf osd setmaxosd 4 >> >> osdmaptool --createsimple 4 --clobber /tmp/osdmap.junk --export-crush >> >> /tmp/crush.new >> >> ceph -c /etc/ceph.conf osd setcrushmap -i /tmp/crush.new >> >> /etc/init.d/ceph -c >> >> /etc/ceph/d2c5d946-b888-40b3-aac2-adda05477a81.conf start osd >> >> >> >> Is my procedure to add an osd incorrect? >> >> >> >> Thanks, >> >> Henry >> > >> > >> -- >> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
