Re: [Gluster-users] Split Brain?

Do what it says in the error - though it's not very nice. Manually go on to each brick where /lib/wms-server.jar is stored, figure out which is the "correct" one and delete all the others (leaving just the one correct one). Then access the file from a client and it will be automatically repli

Re: [Gluster-users] Big I/O or gluster proccess problem

Are you using performance/io-threads filters on *both* client and server side? Despite what the docs say I found similar behaviour until I did that. Ian On 20/05/10 12:19, Ran wrote: Hi all , Our problem is simple but quite critical i posted few mounts ago regarding that issue and there was

Re: [Gluster-users] Maintainance mode for bricks

On 14/04/2010 13:20, Fred Stober wrote: On Wednesday 14 April 2010, Tejas N. Bhise wrote: Fred, Would you like to tell us more about the use case ? Like why would you want to do this ? If we take a brick out, it would not be possible to get it back in ( with the existing data ). Ok,

[Gluster-users] Monitoring gluster with nagios - was Re: [Gluster-devel] Gluster health/status

Answering my own question, hope these instructions are useful - http://www.sirgroane.net/2010/04/monitoring-gluster-with-nagios/ Cheers, Ian On 09/04/2010 06:01, Ian Rogers wrote: Gluster devs, I found the message below in the archives. glfs-health.sh is not included in the v3.0.3

Re: [Gluster-users] [Gluster-devel] Gluster health/status

Gluster devs, I found the message below in the archives. glfs-health.sh is not included in the v3.0.3 sources - is there any plan to add this to the "extras" directory? What's its status? Ian == snip == Raghavendra G Mon, 22 Feb 2010 20:20:33 -0800 Hi all, Here is some work related to He

Re: [Gluster-users] other cluster fs-- was - No space left on device (when there is actually lots of free space)

It would be interesting to compare against - http://www.gluster.com/community/documentation/index.php/GlusterFS_1.3.pre2-VERGACION_vs_Lustre-1.4.9.1_Various_Benchmarks Ian On 08/04/2010 15:30, Burnash, James wrote: I'm actually working on this as we speak. Stay tuned. James -Original

Re: [Gluster-users] gluster local vs local = gluster x4 slower

Have you guys seen the wiki page - http://www.gluster.com/community/documentation/index.php/GlusterFS_2.0_Benchmark_Results_%28compared_with_NFS%29 - it would be interesting if you could replicate the "Single GlusterFS" section to see how things have changed... Ian

Re: [Gluster-users] Configuration suggestions (aka poor/slow performance on new hardware)

Hi Ramiro ideas off the top of my head: Get rid of performance/quick-read - it has a memory leak bug due to be fixed in gluster v3.0.5 If the files are going to be accessed by a program (which doesn't list the directories often) rather than a user (who might) then you can get rid of perfor

Re: [Gluster-users] Setup for production - which one would you choose?

everyone to write about their experiences, use cases, applications using Gluster etc. so others who are using the same applications will be encouraged to try out Gluster. Regards, Tejas. - Original Message - From: "Ian Rogers" To: gluster-users@gluster.org Sent: Wednesday, Marc

Re: [Gluster-users] quick-read vs. io-cache - was Re: mod_glusterfs?

On 25/03/2010 00:11, Krishna Srinivas wrote: On Wed, Mar 24, 2010 at 10:38 AM, Ian Rogers wrote: In a LAMP situation I'd be wanting to use io-cache but there's also a lot of small files. Having both io-cache and the quick-read cache would just mean the files are double cach

[Gluster-users] quick-read vs. io-cache - was Re: mod_glusterfs?

On 23/03/2010 18:40, Raghavendra G wrote: On Tue, Mar 23, 2010 at 5:05 PM, Ian Rogers mailto:ian.rog...@contactclean.com>> wrote: Yes I know, I reported that bug :-) If you're using io-cache then quick-read seems irrelevant as io-cache has 128K pages internally. i

Re: [Gluster-users] Setup for production - which one would you choose?

I've just done part one of a writeup of my EC2 gluster LAMP installation at http://www.sirgroane.net/2010/03/distributed-file-system-on-amazon-ec2/ - may or may not be useful to you :-) Ian On 24/03/2010 17:09, Oliver Hoffmann wrote: Yes, that's an idea. Thanx. That will be important for a

[Gluster-users] gluster "a bit" slower - was Re: gluster local vs local = gluster x4 slower

It's not very helpful to say gluster is "x4" slower though as it all depends on overhead and context. In our setup we've found PHP pages (with lots of includes) load around 100ms slower - which ranges from x2 down to just 10% slower depending on what else is going on... It'd be interesting

Re: [Gluster-users] mod_glusterfs?

> wrote: Hi Ian, Try using quick-read for glusterfs, if you are planning to use apache. regards, On Mon, Mar 22, 2010 at 6:21 PM, Ian Rogers mailto:ian.rog...@contactclean.com>> wrote: On 22/03/2010 13:59, sac wrote:

Re: [Gluster-users] mod_glusterfs?

On 22/03/2010 13:59, sac wrote: Hello Ian, On Mon, Mar 22, 2010 at 7:07 PM, Ian Rogers mailto:ian.rog...@contactclean.com>> wrote: Is mod_glusterfs still recommended for apache servers? This message - http://www.mail-archive.com/gluster-de...@nongnu.org/msg0630

[Gluster-users] mod_glusterfs?

Is mod_glusterfs still recommended for apache servers? This message - http://www.mail-archive.com/gluster-de...@nongnu.org/msg06304.html - suggests that mod_glusterfs would be replaced with booster, but I've also seen that booster is now deprecated... Cheers, Ian -- www.ContactClean.com M

Re: [Gluster-users] cache before threads or visa versa

the same with or without io-threads. On Sun, Mar 21, 2010 at 5:07 AM, Ian Rogers mailto:ian.rog...@contactclean.com>> wrote: Can someone familiar with performance/io-threads explain how it actually works (or write in up in the wiki)?... I've been doing some exper

[Gluster-users] cache before threads or visa versa

Can someone familiar with performance/io-threads explain how it actually works (or write in up in the wiki)?... I've been doing some experiments with performance/io-threads and performance/io-cache. I'd expect that if io-threads was the root of the vol tree then the io-cache would be duplica

Re: [Gluster-users] Read-only volumes - timeframe for features/filter?

On 18/03/2010 09:52, Amar Tumballi wrote: Excellent, although it must be possible to specify this in /etc/fstab or "by hand" in the volume specification. You can add it in volume with 'type testing/features/filter' and add an line "option read-only yes". Thanks, that's obvious

[Gluster-users] memory leak in performance/quick-read ?

Dear Gluster devs, the translator performance/quick-read does not have cache-size option the way that performance/io-cache does - and therefore doesn't have anything like the ioc_prune() functionality of io-cache. I've discovered this can cause what is effectively a memory leak. I have a vo

Re: [Gluster-users] Read-only volumes - timeframe for features/filter?

filter). It should be included in codebase soon. I will reply here in the thread about the availability. -Amar On Thu, Mar 11, 2010 at 12:21 AM, Ian Rogers mailto:ian.rog...@contactclean.com>> wrote: Gluster Devs, I'd like be able to mount some volumes rea

[Gluster-users] Read-only volumes - timeframe for features/filter?

Gluster Devs, I'd like be able to mount some volumes readonly and features/filter - http://www.gluster.com/community/documentation/index.php/Translators/features/filter - should be perfect. But I've compiled 3.0.2 from source and features/filter is installed in a "testing" subdirectory...

[Gluster-users] quorate set [was: How to re-sync]

On 10/03/2010 17:41, Ed W wrote: I do agree that it would be very helpful to have an idea of whether servers are properly in sync or not though. Consider the scenario of upgrading a cluster, ie take down S1, upgrade it, then bring it up again, take down S2, upgrade it, then bring it up agai

Re: [Gluster-users] munin gluster plugin?

umentation is really out of date! The gluster software appears to be excellent (and about the only viable solution in EC2 where I'm using it) but it's really frustrating to use (in fact, almost unusable) without decent documentation... On 26/02/2010 16:37, Ian Rogers wrote: Has an

[Gluster-users] io-cache undefined symbol: notify dumpops

I'm running gluster on ubuntu Karmic on Amazon EC2, compiled from 3.0.2 source - but io-cache is not working as it complains about missing the symbols "notify" and "dumpops" Which libraries should I have loaded to provide these? Config and debug trace below. Thanks, Ian ... [2010-03-04 19

[Gluster-users] munin gluster plugin?

Has anyone built a munin pluging for gluster to graph read/write rates etc. similar to the nfs_client plugin? It should be quite simple to have a "stats" translator that sits at the root of a tree and records very simple counts of accesses etc. -- Kind regards, Ian Rogers Web

[Gluster-users] munin

Has anyone built a munin pluging for gluster to graph read/write rates etc. similar to the nfs_client plugin? If not, is it possible to get a gluster client to log stats at all? I've recently done an install from source and there seems to be almost no logging output at all... Regards, Ian