[Gluster-users] Gluster 3.6.3 performance.cache-size not working as expected in some cases

I am confused about my caching problem. I’ll try to keep this as straightforward as possible and include the basic details... I have a sixteen node distributed volume, one brick per node, XFS isize=512, Debian 7/Wheezy, 32GB RAM minimally. Every brick node is also a gluster client, and also

[Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

I am running 2 glusterd (3.7.3) on individual machines connected by private network. It apears that I can only mount the (replicated) bricks if both deamons are up, otherwise it failes. However, failover works - once they are running. As I am pretty new to glusterfs, there might be some

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

-Atin Sent from one plus one On Aug 31, 2015 10:34 PM, "Merlin Morgenstern" wrote: > > Thank you all for your help. > > To explain the setup better, here is the goal I am trying to achieve: > > - 3 servers running in a cluster, each with a webserver uploading and

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

Thank you all for your help. To explain the setup better, here is the goal I am trying to achieve: - 3 servers running in a cluster, each with a webserver uploading and serving files to visitors from a common glusterfs share. - Server1 and Server2 have gluster-server installed - One brick

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

On Monday 31 August 2015 10:42 PM, Atin Mukherjee wrote: > 2. Server2 dies. Server1 has to reboot. > > In this case the service stays down. It is inpossible to remount the share without Server1. This is not acceptable for a High Availability System and I believe also not intended, but a

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

I understand. So my setup is maybe wrong. Vijay, could you please explain how this dummy node setup would look like? Do you recommend to setup a glusterd on node3 and replicate to 3 servers? In my understanding this would significantly reduce performance as files have to be replicated 3 times.

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

On 08/31/2015 10:41 AM, Vijay Bellur wrote: On Monday 31 August 2015 10:42 PM, Atin Mukherjee wrote: > 2. Server2 dies. Server1 has to reboot. > > In this case the service stays down. It is inpossible to remount the share without Server1. This is not acceptable for a High Availability

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

this all makes sense and sounds a bit like a solr setup :-) I have now added the third node as a peer sudo gluster peer probe gs3 That indeed allow me to mount the share manually on node2 even if node1 is down. BUT: It does not mount on reboot! It only successfully mounts if node1 is up. I need

[Gluster-users] Handling a fuse mount with a failed gluster node

Hi, I am testing out several failure scenarios with GlusterFS. I have a 3 node replicated gluster that i am testing with. One test i am having trouble solving is when a host dies. (i.e. as if someone pulled the power cord out). - Firewall off a host from the rest of the cluster - Test time it

Re: [Gluster-users] Handling a fuse mount with a failed gluster node

On 08/31/2015 12:35 PM, Grant Ridder wrote: Hi, I am testing out several failure scenarios with GlusterFS. I have a 3 node replicated gluster that i am testing with. One test i am having trouble solving is when a host dies. (i.e. as if someone pulled the power cord out). - Firewall off a

Re: [Gluster-users] Handling a fuse mount with a failed gluster node

Thanks for the info Joe! responded in line On Mon, Aug 31, 2015 at 3:00 PM, Joe Julian wrote: > On 08/31/2015 12:35 PM, Grant Ridder wrote: > >> Hi, >> >> I am testing out several failure scenarios with GlusterFS. I have a 3 >> node replicated gluster that i am testing

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

I've tried both: assuming server1 is already in pool, server2 is undergoing peer-probing server2:~$ mount server1:/vol1 mountpoint, fail; server2:~$ mount server2:/vol1 mountpoint, fail. Strange enough. I *should* be able to mount server1:/vol1 on server2. But this is not the case :( Maybe

[Gluster-users] Help, peer probe seems to get stuck on large cluster.

Hi guys, I've been running GlusterFS for a couple of days and it's been nice and steady, except a minor problem: the peer probing on my relatively large cluster seems to stuck for a long time. Last time atinm told me in IRC (I was barius.2333 in IRC) that a cluster as large as 50+ nodes might

Re: [Gluster-users] Help, peer probe seems to get stuck on large cluster.

On 08/31/2015 01:10 PM, Yiping Peng wrote: > Hi guys, > > > I've been running GlusterFS for a couple of days and it's been nice and > steady, except a minor problem: the peer probing on my relatively large > cluster seems to stuck for a long time. > > > Last time atinm told me in IRC (I was

Re: [Gluster-users] Help, peer probe seems to get stuck on large cluster.

The "Disconnected" state of nodes randomly changes, so I randomly picked a node and tailed last several lines of /var/log/glusterfs/etc-glusterfs-glusterd.vol.log (is it the right log file?). I can still access the cluster from servers already in pool, either reading or writing is fine. The log

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

On 08/31/2015 12:53 PM, Merlin Morgenstern wrote: Trying to mount the brick on the same physical server with deamon running on this server but not on the other server: |@node2:~$ sudo mount -t glusterfs gs2:/volume1 /data/nfs Mount failed. Please check the log file for more details. | For

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

I believe the following events have happened in the cluster resulting into this situation: 1. GlusterD & brick process on node 2 was brought down 2. Node 1 was rebooted. In the above case the mount will definitely fail since the brick process was not started as in a 2 node set up glusterd waits

Re: [Gluster-users] Why is it not possible to mount a replicated gluster volume with one Gluster server?

On 09/01/2015 01:00 AM, Merlin Morgenstern wrote: > this all makes sense and sounds a bit like a solr setup :-) > > I have now added the third node as a peer > sudo gluster peer probe gs3 > > That indeed allow me to mount the share manually on node2 even if node1 is > down. > > BUT: It does

Re: [Gluster-users] Help, peer probe seems to get stuck on large cluster.

Even if I'm seeing disconnected nodes (also from already-in-pool nodes), my volume is still intact and available. So I'm guessing that glusterd has few to do with volume/brick service? Am I safe to kill all glusterd on all servers and start this whole peer probing process all over again? If I do