[Lustre-discuss] failover problems using separated journal disk

2009-12-23 Thread Antonio Concas
Hi, all I'm trying to setup a Lustre FS with OST failover, to improve performances i'm using a separated journal disk (formatted with: mke2fs -b 4096 -O journal_dev /dev/mapper/oss1-j0x) and formatting each ost with that command: [OSS1]# mkfs.lustre --ost --fsname=LUSTRE --mgsnode=mgsn...@tcp0

Re: [Lustre-discuss] e2scan wrong file list mtime/ctime

2009-12-23 Thread Andrea Pieretti
Dear Andreas, sorry for the delay, I work with Miguel, so i'll write for him. We have one question, is it possible (safe) to use debugfs on a mounted Lustre filesystem? Thanks Andrea Andreas Dilger wrote: > On 2009-12-16, at 06:28, Miguel Molowny Lopez wrote: > >> we are running lustre 1.8

Re: [Lustre-discuss] ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: canceling anyway

2009-12-23 Thread Christopher J. Walker
Miguel Angel Gila Arrondo wrote: > Hi all, > > We're seeing the same error message in our Lustre clients when umounting a > lustre filesystem, but only in a very specific situation: > > When trying to empty an OST with the simple data migration script > (http://manual.lustre.org/manual/LustreMa

Re: [Lustre-discuss] ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: canceling anyway

2009-12-23 Thread Heiko Schröter
Am Mittwoch 23 Dezember 2009 12:22:17 schrieb Christopher J. Walker: > > > > Dec 22 17:18:49 proof kernelLustreError: 10917:0: > > (ldlm_request.c:1030:ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: > > canceling anyway > > Dec 22 17:18:49 proof kernelLustreError: 10917:0: > > (ldlm_request.

Re: [Lustre-discuss] failover problems using separated journal disk

2009-12-23 Thread Bernd Schubert
Hello Antonio, On Wednesday 23 December 2009, Antonio Concas wrote: > Hi, all > > Dec 23 11:20:29 mommoti12 kernel: LDISKFS-fs: external journal has bad > superblock see here: https://bugzilla.lustre.org/show_bug.cgi?id=21389 Cheers, Bernd -- Bernd Schubert DataDirect Networks _

Re: [Lustre-discuss] e2scan wrong file list mtime/ctime

2009-12-23 Thread Andreas Dilger
On 2009-12-23, at 04:11, Andrea Pieretti wrote: > Dear Andreas, sorry for the delay, > I work with Miguel, so i'll write for him. > > We have one question, > is it possible (safe) to use debugfs on a mounted Lustre filesystem? Yes, this is safe unless you open the filesystem with "-w" (write mode)

Re: [Lustre-discuss] failover problems using separated journal disk

2009-12-23 Thread Bernd Schubert
Hello Antonio, On Wednesday 23 December 2009, Antonio Concas wrote: > Hi, all > > Dec 23 11:20:29 mommoti12 kernel: LDISKFS-fs: external journal has bad > superblock see here: https://bugzilla.lustre.org/show_bug.cgi?id=21389 Cheers, Bernd ___ Lustr

Re: [Lustre-discuss] abnormally long ftruncates on Cray XT4

2009-12-23 Thread Mark Howison
Hi Andreas, Our systems people looked through the error logs and didn't report any errors directly related to my job. There were some errors around the same time and associated with other jobs, however (pasted below). Thanks Mark based on your timestamps I am assuming this is the run: Dec 7 17:

[Lustre-discuss] New to lustre - Help setting up Lustre

2009-12-23 Thread Jagga Soorma
Hi Guys, I am working on building a small cluster sharing the lustre file system. I will be using an infiniband interconnect for all the compute/head nodes. Can someone please assist me in figuring out which RPM's should I install on my MDS & OSS.: kernel-ib-1.4.2-2.6.18_128.7.1.el5_lustre.1.8.1

Re: [Lustre-discuss] New to lustre - Help setting up Lustre

2009-12-23 Thread Brian J. Murrell
On Wed, 2009-12-23 at 14:44 -0800, Jagga Soorma wrote: > Hi Guys, Hi, > which RPM's should I install on my MDS & OSS.: > > kernel-ib-1.4.2-2.6.18_128.7.1.el5_lustre.1.8.1.1.x86_64.rpm > kernel-lustre-2.6.18-128.7.1.el5_lustre.1.8.1.1.x86_64.rpm > lustre-1.8.1.1-2.6.18_128.7.1.el5_lustre.1.8.1.1.