[Gluster-users] SPEC SFS 2014

2015-04-09 Thread Behrooz Shafiee
Hi, I am trying to run SPEC SFS 2014 on a GlusterFS deployment. I am mounting GlusterFS on my client using sudo mount -t glusterfs myserver:/bfsvolume /mnt/gluster and am using GlusterFS version 3.6.2. both on clients and servers. The benchmark start and passes initialization phase (writing file

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Vijay Bellur
On 04/09/2015 07:33 PM, Jeff Darcy wrote: I was under the impression that gluster replication was synchrounous, so the appserver would not return back to the client until the created file was replicated to the other server. But this does not seem to be the case, because sleeping a little bit

[Gluster-users] one node change uuid in the night

2015-04-09 Thread Pierre Léonard
Hi all, I have a 14 node cluster with two volume on replica 7 one strip 7. This night the node 10 add a peers files and stop. I have corrected with the data in glusterd.info and suppress the bad peers file. Now all the node are stopped no glusterd service and the node 10 failed in starting

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Jeff Darcy
I was under the impression that gluster replication was synchrounous, so the appserver would not return back to the client until the created file was replicated to the other server. But this does not seem to be the case, because sleeping a little bit always seems to make the read failures go

Re: [Gluster-users] one node change uuid in the night

2015-04-09 Thread Pierre Léonard
Hi All, Back to you. I have updated all the node : system centos6.6 and gluster last release on all the nodes. All nodes are OK except the 10 which don't start the daemon gluster. Many thanks in advance. Hi all, I have a 14 node cluster with two volume on replica 7 one strip 7. This

[Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Eric Mortensen
We have a Gluster replicated setup with 2 servers. Each server also runs an app server that functions as a client of the gluster files. Client access to the appservers are load balanced using round robin. Sometimes, when a client creates a new file and then immediately tries to read it, the read

Re: [Gluster-users] Glusterfs performance tweaks

2015-04-09 Thread Ben Turner
- Original Message - From: Punit Dambiwal hypu...@gmail.com To: Vijay Bellur vbel...@redhat.com Cc: gluster-users@gluster.org Sent: Wednesday, April 8, 2015 9:55:38 PM Subject: Re: [Gluster-users] Glusterfs performance tweaks Hi Vijay, If i run the same command directly on the

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Pranith Kumar Karampuri
On 04/09/2015 07:26 PM, Eric Mortensen wrote: Yes that is correct, read from a different mount (different brick/server). The error from the app server when reading is that the file was not found. (The actual error from the OS which leads to the 404 error from the app server is not visible, I

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Jeff Darcy
Jeff: I don't really understand how a write-behind translator could keep data in memory before flushing to the replication module if the replication is synchronous. Or put another way, from whose perspective is the replication synchronous? The gluster daemon or the creating client? That's

Re: [Gluster-users] [Gluster-devel] Revamping the GlusterFS Documentation...

2015-04-09 Thread Aravinda
I think we also need version based documentation something similar to http://guides.emberjs.com/v1.11.0/ -- regards Aravinda http://aravindavk.in On 04/09/2015 07:24 PM, Sankarshan Mukhopadhyay wrote: On Mon, Mar 23, 2015 at 12:31 PM, Shravan Chandrashekar schan...@redhat.com wrote: Hence,

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Eric Mortensen
Hi all, Thanks for the helpful responses everyone, I will look at the mounting options suggested. Just a quick question to confirm my understanding. When we all say replication is synchronous, that does mean that each of the filesystem operations on appserver1 that write a chunk of bytes to the

Re: [Gluster-users] GlusterFS 3.6.2, volume from 4 to 8 bricks CPU went sky high

2015-04-09 Thread Jiri Hoogeveen
Hi Sander, It sounds to me, that it triggered the self-healing, which will do a scan on the bricks. Depending on the number of files on the brick, it can use a lot of CPU. Does the logs say anything useful? Grtz, Jiri Hoogeveen On 09 Apr 2015, at 14:18, Sander Zijlstra

Re: [Gluster-users] [Gluster-devel] Revamping the GlusterFS Documentation...

2015-04-09 Thread Sankarshan Mukhopadhyay
On Mon, Mar 23, 2015 at 12:31 PM, Shravan Chandrashekar schan...@redhat.com wrote: Hence, we started by curating content from various sources including gluster.org static HTML documentation, glusterfs github repository, various blog posts and the Community wiki. We also felt the need to improve

[Gluster-users] GlusterFS 3.6.2, volume from 4 to 8 bricks CPU went sky high

2015-04-09 Thread Sander Zijlstra
LS, We have a GlusterFS cluster which consists of 4 nodes with one brick each and a distributed-replicated volume of 72 TB. Today I extended the cluster to 8 machines and added new bricks to the volume, so it now contains 8 bricks. I didn’t start the rebalance yet to limit the impact during

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Eric Mortensen
Ok, that made a lot of sense. I guess what I was expecting was that the writes were (close to) immediately consistent, but Gluster is rather designed to be eventually consistent. Thanks for explaining all that. Eric On Thu, Apr 9, 2015 at 5:45 PM, Jeff Darcy jda...@redhat.com wrote: Jeff: I

Re: [Gluster-users] Glusterfs performance tweaks

2015-04-09 Thread Punit Dambiwal
Hi Ben, -Scheduler {noop or deadline } :- *noop* -No read ahead! :- *yes* -No RAID! :- *Yes no RAID* -Make sure the kernel seems them as SSDs :- *Yes* On Thu, Apr 9, 2015 at 10:04 AM, Punit Dambiwal hypu...@gmail.com wrote: Hi Ben, Yes...i am using 2*10G (Bonding LACP)... [root@cpu02 ~]#

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Pranith Kumar Karampuri
On 04/09/2015 04:39 PM, Eric Mortensen wrote: We have a Gluster replicated setup with 2 servers. Each server also runs an app server that functions as a client of the gluster files. Client access to the appservers are load balanced using round robin. Sometimes, when a client creates a new

Re: [Gluster-users] Synchronous replication, or no?

2015-04-09 Thread Jeff Darcy
Ok, that made a lot of sense. I guess what I was expecting was that the writes were (close to) immediately consistent, but Gluster is rather designed to be eventually consistent. All distributed file systems are, to some extent; we just try to be clearer than most about what the guarantees

Re: [Gluster-users] Why revamp Gluster.org?

2015-04-09 Thread Tuomas Kuosmanen
^ that's even if it's just a typo fix. This could be as simple as: `git pull` Instead of generating, having a ground up static site can solve this for us. This is actually not true. The middleman / ruby framework is wired up so that it builds the site when you push the change. For a simple