Jim: I just realized that you have already sent me your init script. Let me take a closer look at it.
Becky On Fri, Jul 20, 2012 at 3:13 PM, Becky Ligon <[email protected]> wrote: > Jim: > > I have successfully booted my CentOS 6.2 system (using > 2.6.32-220.13.1.el6.x86_64) and started the PVFS2 server and mounted the > client. Thus, I can only guess that there is something in your environment > causing the problem. Is it possible for you to mount the client by issuing > the commands manually once the system is running? Can you send me a copy > of your startup script for mounting the client from your /etc/init.d > directory? > > Becky > > > On Thu, Jul 19, 2012 at 12:58 PM, Becky Ligon <[email protected]> wrote: > >> 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 >> >> >> > > > -- > 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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