Jim: I have been able to successfully mount-on-boot on a VM with the 2.6.32-220.13.1.el6.x86_64. However, I was using the Scientific Linux 6 distro and NOT CentOS 6.2. Next, I will try a CentOS 6.2 distro and see what happens with it.
Becky On Wed, Jul 18, 2012 at 5:14 PM, Becky Ligon <[email protected]> wrote: > Jim: > > Is the mount-on-boot issue just with your CentOS 6.2 environment? If so, > which version of OrangeFS are you running? > > Becky > > > On Wed, Jul 18, 2012 at 3:28 PM, Jim Kusznir <[email protected]> wrote: > >> I cannot reproduce the pvfs2 crash on demand. I have not yet seen it >> on centos 6, but I haven't placed centos6 into production yet. >> >> On my centos5 systems, its not reproducible on demand, but it seems to >> happen with moderate file access from a few different processes. >> Sometimes scp'ing files to/from pvfs2 on the head node (which is a >> pvfs2 client) will do it. This has happened since the beginning of >> pvfs2 for me; on the compute nodes, I'm not sure if there's more than >> one process, but since I updated to OrangeFS 2.8.5, I've been seeing >> compute nodes KP with the previous screenshot (it did not crash (that >> I'm aware of) prior to OrangeFS 2.8.5 on compute nodes). >> >> Here's my /etc/init.d/pvfs2-client script: >> --------------- >> #!/bin/sh >> # >> # chkconfig: 2345 99 99 >> # >> # description: mount pvfs2 filesystem >> # >> >> . /etc/rc.d/init.d/functions >> #export LD_PRELOAD=/opt/db4/lib/ >> case "$1" in >> start) >> echo -n "Mounting PVFS2 Filesystem: " >> modprobe pvfs2 >> /opt/pvfs2/sbin/pvfs2-client -p /opt/pvfs2/sbin/pvfs2-client-core >> mkdir -p /mnt/pvfs2 >> mount -t pvfs2 -o intr tcp://pvfs2-io-0-0:3334/pvfs2-fs /mnt/pvfs2 >> touch /var/lock/subsys/pvfs2-client >> ;; >> >> stop) >> echo -n "Unmounting PVFS2 Filesystem: " >> umount /mnt/pvfs2 >> rm -f /var/lock/subsys/pvfs2-client >> ;; >> >> restart) >> $0 stop >> $0 start >> ;; >> >> status) >> status $NAME >> ;; >> *) >> echo "Usage: $NAME {start|stop|restart|status}" >> exit 1 >> esac >> >> exit 0 >> ---------------- >> I've tried with the export commented and uncommented, no difference. >> >> --Jim >> >> On Wed, Jul 18, 2012 at 12:20 PM, Becky Ligon <[email protected]> wrote: >> > Thanks, Jim. >> > >> > We are using 2.6.32-220.4.1.el6.x86_64 in our production environment. >> So, I >> > should be able to setup a VM with your kernel version and test. Can you >> > give me a scenario to try in order to reproduce the problem? >> > >> > I am also setting up a CENTOS 6 VM, so I can analyze the mount-with-boot >> > issue. >> > >> > Becky >> > >> > >> > On Wed, Jul 18, 2012 at 3:16 PM, Jim Kusznir <[email protected]> >> wrote: >> >> >> >> [root@aeoltest torque]# rpm -qa |grep kernel >> >> kernel-2.6.32-220.13.1.el6.x86_64 >> >> dracut-kernel-004-256.el6_2.1.noarch >> >> kernel-devel-2.6.32-220.13.1.el6.x86_64 >> >> kernel-headers-2.6.32-220.13.1.el6.x86_64 >> >> kernel-firmware-2.6.32-220.13.1.el6.noarch >> >> kernel-doc-2.6.32-220.13.1.el6.noarch >> >> [root@aeoltest torque]# uname -a >> >> Linux aeoltest.local 2.6.32-220.13.1.el6.x86_64 #1 SMP Tue Apr 17 >> >> 23:56:34 BST 2012 x86_64 x86_64 x86_64 GNU/Linux >> >> [root@aeoltest torque]# >> >> >> >> >> >> On Wed, Jul 18, 2012 at 12:10 PM, Becky Ligon <[email protected]> >> wrote: >> >> > Jim: >> >> > >> >> > We are working on a few corrections to the user library, as we speak, >> >> > that >> >> > were identified last week. Using LD_PRELOAD would definitely get >> around >> >> > the >> >> > kernel issues at hand, but I ask that you wait until we have all of >> the >> >> > current corrections in place before using it. >> >> > >> >> > I also have some questions for you. I am working the issue with the >> >> > "won't >> >> > mount on boot" issue and would like to know the specific kernel that >> you >> >> > are >> >> > using under CentOS 6.2. >> >> > >> >> > Thanks, >> >> > Becky >> >> > >> >> > >> >> > On Wed, Jul 18, 2012 at 3:01 PM, Jim Kusznir <[email protected]> >> wrote: >> >> >> >> >> >> I managed to get a screenshot of a ip-kvm with the last chunk of a >> >> >> pvfs-induced KP on a compute node; image attached. >> >> >> >> >> >> With respect to client access methods, perhaps I should switch to a >> >> >> user space solution. I remember hearing about an LD_Preload client >> >> >> module (not using fuse, but being entirely userspace). Is that >> >> >> "ready" with 2.8.6? If not, perhaps I need to switch to the fuse >> >> >> module... >> >> >> >> >> >> --Jim >> >> >> >> >> >> On Wed, Jul 18, 2012 at 11:46 AM, Andrew Savchenko < >> [email protected]> >> >> >> wrote: >> >> >> > Hello Becky, >> >> >> > >> >> >> > On Wed, 18 Jul 2012 12:43:51 -0400 Becky Ligon wrote: >> >> >> >> Andrew: >> >> >> >> >> >> >> >> 2.8.6 does not fix the problem you were seeing with question >> marks >> >> >> >> in >> >> >> >> the >> >> >> >> "ls" output, but we are working on it. >> >> >> >> >> >> >> >> Just FYI! >> >> >> > >> >> >> > Thanks for the warning. I'll keep sticking to the fuse client >> during >> >> >> > update then. >> >> >> > >> >> >> > Best regards, >> >> >> > Andrew Savchenko >> >> >> > >> >> >> > _______________________________________________ >> >> >> > Pvfs2-users mailing list >> >> >> > [email protected] >> >> >> > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users >> >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > -- >> >> > Becky Ligon >> >> > OrangeFS Support and Development >> >> > Omnibond Systems >> >> > Anderson, South Carolina >> >> > >> >> > >> > >> > >> > >> > >> > -- >> > Becky Ligon >> > OrangeFS Support and Development >> > Omnibond Systems >> > Anderson, South Carolina >> > >> > >> > > > > -- > Becky Ligon > OrangeFS Support and Development > Omnibond Systems > Anderson, South Carolina > > > -- Becky Ligon OrangeFS Support and Development Omnibond Systems Anderson, South Carolina
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