Re: [lustre-discuss] Lustre 2.7 deployment issues

On Fri, 4 Dec 2015 18:08:50 -0500 Chris Hunter wrote: > Hi Ray, > > I'll throw my 0.02 into the ring: > > There are known issues with the Truescale kernel driver in > redhat/centos/scilinux 6.6. You should try kernel 2.6.32-504.23.4 or > newer. Some details of the bug

Re: [lustre-discuss] Lustre 2.7 deployment issues

On 12/04/2015 10:46 AM, Mohr Jr, Richard Frank (Rick Mohr) wrote: The balance between features and stability is a complex topic, but it is one that Lustre developers care about. For a recent thread on this topic, take a look at:

Re: [lustre-discuss] Lustre 2.7 deployment issues

> On Dec 7, 2015, at 2:25 PM, Christopher J. Morrone wrote: > > Another link that might me helpful: > > http://wiki.lustre.org/Retired_Release_Terminology A perfect explanation. Wish I had known about that link :-) -- Rick Mohr Senior HPC System Administrator National

Re: [lustre-discuss] Lustre 2.7 deployment issues

> On Dec 5, 2015, at 1:02 AM, Massimo Sgaravatto > wrote: > > Ok, but let's take for example Lustre 2.7 > > RPMs for Lustre 2.7 published on the web are ~ 9 months ago. > I guess that in the meantime several problems were fixed. Yes. > And these fixes are

Re: [lustre-discuss] Lustre 2.7 deployment issues

Rick Yes you are correct. We¹re also actively working on the Lustre 2.8 community release which will contain all the bug fixes available in the 2.7.x maintenance releases we have made available to our customers. Lustre 2.8 should be finalized shortly but what¹s there atm on master should be close

Re: [lustre-discuss] Lustre 2.7 deployment issues

Hi, Where do you find the 2.7.x-releases? I thought fixes were only released for the Intel maintenance version? Regards, /jon On 12/04/2015 11:43 AM, jerome.be...@inserm.fr wrote: Hello Ray, One consideration first : You try the 2.7 version which is not the production one (aka 2.5). From

Re: [lustre-discuss] Lustre 2.7 deployment issues

As I mentioned, I am doing a test install to see what I want to run for deployment. We have run a couple Lustre installs, one 1.8.x based and a current production one that is 2.3. The Lustre 2.3 server set has been up for 750 days and has been very solid. This test replaces the old 1.8 setup

Re: [lustre-discuss] Lustre 2.7 deployment issues

Ok, I am not using IB here but it looks obvious that the max_frag value differs between the MGS and the client. Do you use the same lustre version on the MGS/OSS AND the client built on the same Kernel version ? (ie lustre*-KERNEL_VERSION-LUSTRE_VERSION) Did you try it with the latest

Re: [lustre-discuss] Lustre 2.7 deployment issues

Client was rebuilt locally from the source RPM's. I thought I had built it from the client source from the nightly build but I can see now it was the 2.7.0 source lustre-client-2.7.0-2.6.32_504.8.1.el6.x86_64.src.rpm Client kernel is the OS provided kernel. At this point I have ripped out

Re: [lustre-discuss] Lustre 2.7 deployment issues

Hi, I honestly don't know if the compiled versions available here are meant to be used by everyone but they are publicly browsable on Intel Jenkins : https://build.hpdd.intel.com but as the source is publicly available from the whamcloud git, there imo might not be any problem If you

Re: [lustre-discuss] Lustre 2.7 deployment issues

Thanks Rick for this useful summary ! What is not clear to me if maintenance releases will eventually be available again or if people running production systems will have to choose among: 1) Buy Intel support contract 2) Move to another filesystem Thanks, Massimo On 04/12/2015 17:53, Mohr

Re: [lustre-discuss] Lustre 2.7 deployment issues

> On Dec 4, 2015, at 9:48 AM, Ray Muno wrote: > > I started with 2.7 since that is what I got pointed to when I went to the > lustre.org download page. The "Most Recent Release" points me at the 2.7.0 > tree. If I follow the path to download source on that page, Lustre 2.7 is

Re: [lustre-discuss] Lustre 2.7 deployment issues

Hi Ray, I'll throw my 0.02 into the ring: There are known issues with the Truescale kernel driver in redhat/centos/scilinux 6.6. You should try kernel 2.6.32-504.23.4 or newer. Some details of the bug are in LU-6698 and RHSA-2015-1081. Further, lustre 2.7+ now applies performance tuning

Re: [lustre-discuss] Lustre 2.7 deployment issues

Ok, but let's take for example Lustre 2.7 RPMs for Lustre 2.7 published on the web are ~ 9 months ago. I guess that in the meantime several problems were fixed. And these fixes are available only to Intel customers (I guess there are some newer rpms available to them) and will never be

Re: [lustre-discuss] Lustre 2.7 deployment issues

: Friday, December 04, 2015 12:41 PM To: lustre-discuss@lists.lustre.org Subject: Re: [lustre-discuss] Lustre 2.7 deployment issues Thanks Rick for this useful summary ! What is not clear to me if maintenance releases will eventually be available again or if people running production systems

[lustre-discuss] Lustre 2.7 deployment issues

I am trying to set up a test deployment of Lustre 2.7. I pulled RPMS from http://lustre.org/download/ and installed them on a set of server running Scientific Linux 6.6 which seems to be a proper OS for deployment. Everything installs and I can format the filesystems on the MDS (1) and OSS