Re: [Lustre-discuss] Lustre HA Experiences

2011-05-24 Thread Mag Gam
What was your conclusion? What is a good HA solution with Lustre? I am hoping SNS will be a big push for the next year On Wed, May 4, 2011 at 5:16 PM, Jason Rappleye wrote: > > On May 4, 2011, at 10:05 AM, Charles Taylor wrote: > >> >> We are dipping our toes into the waters of Lustre HA using >

Re: [Lustre-discuss] Client Kernel panic - not syncing. Lustre 1.8.5

2011-05-24 Thread Mag Gam
stick with 1.6.6 , its a great release! BTW, why did you decide to upgrade to 1.8.x? is there a feature you are looking for? On Fri, May 20, 2011 at 2:48 PM, Aaron Everett wrote: > Thanks for the tip. I've already updated with the LU-286 patch, but I'll > build new rpms with both patches and rol

Re: [Lustre-discuss] SLES 11 SP1 Client rpms built but not working

2011-05-24 Thread Rick Mohr
Peter, Sorry for the late response. I don't know if this will help you or not, but below are the commands I ran to build the lustre client rpms on one of our SLES systems: nautilus:~ # cat /etc/SuSE-release SUSE Linux Enterprise Server 11 (x86_64) VERSION = 11 PATCHLEVEL = 1 nautilus:~ # unam

Re: [Lustre-discuss] Landing and tracking tools improvements

2011-05-24 Thread Andreas Dilger
I have to echo some of the comments of Chris Morrone. The in-line comments in Gerrit do not appear in the "expanded" view, and need to be found individually in the various patches. Having 3 lines of context plus the comments is enough for most cases, and if not then a URL to the actual comment

Re: [Lustre-discuss] Poor multithreaded I/O performance

2011-05-24 Thread kmehta
This is what my application does: Each thread has its own file descriptor to the file. I use pwrite to ensure non-overlapping regions, as follows: Thread 0, data_size: 1MB, offset: 0 Thread 1, data_size: 1MB, offset: 1MB Thread 2, data_size: 1MB, offset: 2MB Thread 3, data_size: 1MB, offset: 3MB

Re: [Lustre-discuss] [Lustre-community] Poor multithreaded I/O performance

2011-05-24 Thread Kevin Van Maren
[Moved to Lustre-discuss] "However, if I spawn 8 threads such that all of them write to the same file (non-overlapping locations), without explicitly synchronizing the writes (i.e. I dont lock the file handle)" How exactly does your multi-threaded application write the data? Are you using p

Re: [Lustre-discuss] Landing and tracking tools improvements

2011-05-24 Thread sebastien . buisson
Hi, I found useful in Bugzilla system to be able to 'reply' to a previous comment, with email quoting style pre-filled text box. I also miss the ability to really simply generate a link to a specific bug , or even a comment in a bug, when writing a comment. For instance, when I was writing in B