Re: [lustre-discuss] refresh file layout error

2015-09-02 Thread E.S. Rosenberg
On Wed, Sep 2, 2015 at 8:47 PM, Wahl, Edward wrote: > I've seen this kind of error before when doing samba to do something > stupid (and let's face it, that most everything with samba) It was a > locking issue I think. Things were being changed/deleted/ (unlinked in > actuality) as the clien

Re: [lustre-discuss] refresh file layout error

2015-09-02 Thread E.S. Rosenberg
On Wed, Sep 2, 2015 at 6:51 PM, Stearman, Marc wrote: > -13 is permission denied (EACCES). Does your webserver have access to > those files? If it is running as nobody, do you have the proper > ownership/permissions set on all the directories and files? > The files were created by the web/pytho

[lustre-discuss] Are there any published results of how Lustre performance varies with changing Stripe size with File size

2015-09-02 Thread Prakrati.Agrawal
Hi, I wanted to know if there are any published results on how Lustre performance changes with changes in Stripe size for different file sizes for varying number of processes. Any help would be appreciated. Thanks and Regards, Prakrati ___ lustre-disc

Re: [lustre-discuss] dne2: lfs setdirstripe

2015-09-02 Thread Patrick Farrell
Olaf, I can explain the rationale for the restrictions, though I have not verified if the root only one applies to striped as well as remote directories. (It's a simple test, though. I'm just not where I can reach a test system.) Note, to be clear: DNE 2 does not replace DNE 1. Remote direct

Re: [lustre-discuss] dne2: lfs setdirstripe

2015-09-02 Thread Faaland, Olaf P.
The lustre we are testing with is built from commit ea383222e031cdceffbdf2e3afab3b6d1fd53c8e which is after tag 2.7.57 but before 2.7.59; so recent but not entirely current. Olaf P. Faaland Livermore Computing phone : 925-422-2263 From: lustre-discuss [lustre-dis

[lustre-discuss] dne2: lfs setdirstripe

2015-09-02 Thread Faaland, Olaf P.
Hi, We have begun work on testing DNE with ZFS backend. So far we've only done the installation of the filesystem and begun educating ourselves. I see in man lfs, that "lfs setdirstripe" has some restrictions by default - only executable by root unless "mdt.*.enable_remote_dir_gid" is set - o

Re: [lustre-discuss] refresh file layout error

2015-09-02 Thread Wahl, Edward
I've seen this kind of error before when doing samba to do something stupid (and let's face it, that most everything with samba) It was a locking issue I think. Things were being changed/deleted/ (unlinked in actuality) as the client was trying to do something with it. Is the Apache proce

[lustre-discuss] refresh file layout error

2015-09-02 Thread E.S. Rosenberg
Hi all, I am seeing an interesting/annoying problem with lustre and am not really sure what/where to look. When a webserver (galaxy using wsgi/apache2) tries to server (large) files stored on lustre it fails to send the full file and I see the following errors in syslog: Sep 2 11:50:17 hm-02 ke