Sorry, I was unclear — I meant I think[1] it was fixed in our linux branch, for future kernel releases. The messages you're seeing are just logging a perfectly normal event that's part of the Ceph protocol. -Greg [1]: I'd have to check to make sure. Sage, Alex, am I remembering that correctly? On Wednesday, October 24, 2012 at 11:45 PM, jie sun wrote: > What is the version of the master branch ? I use the stable version 0.48.2 > Thank you! > -SunJie > > 2012/10/24 Gregory Farnum <greg@xxxxxxxxxxx>: > > On Tuesday, October 23, 2012 at 10:48 PM, jie sun wrote: > > > My vm kernel version is "Linux ubuntu12 3.2.0-23-generic". > > > > > > "ceph-s" shows > > > " health HEALTH_OK > > > monmap e1: 1 mons at {a=10.100.211.146:6789/0}, election epoch 0, quorum 0 a > > > osdmap e152: 10 osds: 9 up, 9 in > > > pgmap v48479: 2112 pgs: 2112 active+clean; 23161 MB data, 46323 MB > > > used, 2451 GB / 2514 GB avail > > > mdsmap e31: 1/1/1 up {0=a=up:active} " > > > > > > In my vm, I do operations like: > > > I install 4 debs on my vm, such as libnss3, libnspr4, librados2, > > > librbd1. And then execute "modprobe rbd" so that I can map a image to > > > my vm. > > > Then "rbd create foo --size 10240 -m $monIP(my ceph mon IP)", > > > "rbd map foo -m $monIP" ------ Here a device /dev/rbd0 can be > > > used as a local device > > > "mkfs -t ext4 /dev/rbd0" > > > "mount /dev/rbd0 /mnt(or some other directory)" > > > After the operations above, I can use this device. But it oftern > > > prompt some log like "libceph: osd9 10.100.211.68:6809 socket closed". > > > I just want to mount a device to my vm, so I didn't install a ceph > > > client. Is this proper to do so? > > > > > > > > You might consider using the native QEMU/libvirt instead; it offers some more advanced options. But if you're happy with it, this certainly works! > > > > The "socket closed" messages are just noise; it's nothing to be concerned about (you'll notice they're happening every 15 minutes for each OSD; probably you aren't doing any disk accesses). I think these warnings actually got removed from our master branch a few days ago. > > -Greg > -- 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