similar to: Samba with CTDB able to serve non-clustered data?

Hi Martin, Thanks very much for the information. I guess the part: * Coherency of the file data you serve with Samba You need to make sure that updates to the data that you are serving are seen coherently across the cluster. Is the tough one. Is there a way to do this that you know of when using NFS? I see version 4.5 RC2 was just released. Do you know when it will be fully released?

Hi Stephen, On Tue, 9 Aug 2016 18:08:15 -0400, Stephen Cousins via samba <samba at lists.samba.org> wrote: > I'd like to set up a HA Samba server that serves out data from NFS mounts​. > I was thinking that CTDB was the thing to do use but it is only mentioned > with serving clustered file systems like Gluster, Lustre, etc. Is there a > way to set up a HA Samba server

Could I impose upon someone to provide some guidance? Some hint? Thank you Is a shared file system actually required? If etcd is used to manage the global recovery lock, is there any need at that point for a shared file system? In other words, are there samba or CTDB files (state) that must be on a shared file system, or can each clustered host simply have these files locally? What must be

Hello, I try to set up a clustered samba server (on Novell SLES11SP2) based upon CTDB and NFS. My problem is that I do not yet understand the structure of the setup when using NFS. I followed the documentation in http://wiki.samba.org/index.php/CTDB_Setup#Setting_up_CTDB_for_clustered_NFS As far as I understand this documentation, it should be possible to set up a samba cluster say having 3

Hi, We've had a strange issue after following the recommendations at https://wiki.samba.org/index.php/Ping_pong, particularly the part about mmap coherence. We are running CTDB/Samba over a MooseFS clustered FS, and we'd not done the ping-pong before. After finding that the mmap coherence test did not pass, we changed "use mmap" to "no" in smb.conf. This morning

Hi list We recently upgraded our fileservers from Centos supplied 4.2.10 to Sernet 4.4.6, and then our DCs from 3.6.x to 4.4.6. It seems that since then we've had problems with locks not being obeyed on all nodes - they only seem to work when a second client opens a file on the same node as the first client. For example, when a user opens an Excel file I will see something like this

On Thu, Jul 14, 2016 at 02:22:12PM +0100, Alex Crow wrote: > At the moment we're pretty happy with the Samba side of things. I > did wonder if there was any help that you kind chaps might be able > to give to the MooseFS guys if they need it (they've not asked yet > but I've suggested they might be able to). Overall it's working The main hint I would like to give to

On Thu, Jul 14, 2016 at 02:39:48PM +0100, Alex Crow wrote: > >The main hint I would like to give to the MooseFS developers is to get > >ping_pong -rw working. If you need any assistance in setting that up > >and getting arguments on why this is important, let us know! > > > >With best regards, > > > >Volker > > Any arguments that I can pass on would

On 03/11/16 14:28, Ralph Böhme wrote: > >> Ah, my smb.conf is missing the "ctdb socket" parameter. According to "man >> smb.conf" this should be set, but I don't remember seeing it on the wiki >> pages. > if it's not set, the default is used which works in many cases, but > not in mine. If the default wasn't working in your setup,

Hello all, First of all, apologies if this isn't the right location for this question, I couldn't find a CTDB specific mailing list or IRC so I figured the general one would be appropriate. Please let me know if this question is better placed elsewhere. I'm trying to test clustered samba and have a two node CTDB setup (Following the guide here:

On 05/07/16 19:45, Volker Lendecke wrote: > On Tue, Jul 05, 2016 at 07:21:16PM +0100, Alex Crow wrote: >> I've set up the "DR" side of my cluster to "use mmap = no" and with >> "private dir" removed from the smb.conf. > Why do you set "use mmap = no"? > >> I have the MooseFS guys on the case as well. Should I put them in touch

Hi folks, I know this topic was already discussed but unfortunately non of the suggestion's helped. My current setup, Glusterfs on ZFS, CTDB installed but running into "Permission denied" error in regards to the lock file. What did I tried/tested: - Mounting the gluster volume with option --direct-io-mode=enable - ping_pong -rw /gluster/lock/lock 3

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I was testing ocfs2 on a 2 node cluster set up. ocfs2-tools version is 1.6.3 ocfs2 kernel version is 2.6.36 Using cman on 2 nodes node02 dw # ping_pong -rwm /data/test.dat 3 data increment = 2 14 locks/sec node01 dw # ping_pong -rw /data/test.dat 3 data increment = 2 10 locks/sec node02 dw # ping_pong -r /data/test.dat 3 1980 locks/sec Using cman on 1 node node02 dw #

On 03/11/16 13:12, Ralph Böhme wrote: > >> Hi there, >> >> Can you send your smb.conf so I can compare it to mine? > sure. It's a virtual cluster in LXC containers with 3 nodes, > filesystem is a bind mount with ext4. > > # cat /var/lib/lxc/ctdb-node0/rootfs/opt/samba/etc/smb.conf > [global] > clustering = yes > ctdbd socket =

On Thu, 3 Nov 2016 08:13:53 +0100, Ralph Böhme via samba <samba at lists.samba.org> wrote: > On Thu, Nov 03, 2016 at 05:34:21PM +1100, Martin Schwenke via samba wrote: > > If you lock the file from a client attached to 1 node and > > "smbstatus -L" shows the lock from all the nodes then CTDB is doing > > what it is meant to. That is, it makes sure that Samba

Hi everyone, I'm setting up a clustered Samba+CTDB in front of CephFS and am running into an issue during failover. For the most part everything seems to work: the IP moves quickly, smbd is started on the right node, etc, but if there is an IO load from a client during failover (e.g., copying a big directory full of files in File Explorer), it pauses for a couple of seconds and then pops up

On Thu, Oct 20, 2016 at 8:09 PM, Alex Crow via samba <samba at lists.samba.org> wrote: > Hi list > > We recently upgraded our fileservers from Centos supplied 4.2.10 to Sernet > 4.4.6, and then our DCs from 3.6.x to 4.4.6. > > It seems that since then we've had problems with locks not being obeyed on > all nodes - they only seem to work when a second client opens a

Hi Bob, On Tue, 6 Oct 2020 20:56:39 -0400, Robert Buck <robert.buck at som.com> wrote: > Hi Martin, you seem to do a lot of work on CTDB. Let me ask a question... Yes, I have done a lot of work on CTDB. A bit less lately... > Is there a way to segment CTDB/Samba to minimize chatter? Specifically, > what I have in mind... In recent years advances have been made in >

Hi Volker, I apologise if I came across as an a***hole here. Responses below: On 05/07/16 20:45, Volker Lendecke wrote: > On Tue, Jul 05, 2016 at 08:12:59PM +0100, Alex Crow wrote: >> >> On 05/07/16 19:45, Volker Lendecke wrote: >>> On Tue, Jul 05, 2016 at 07:21:16PM +0100, Alex Crow wrote: >>>> I've set up the "DR" side of my cluster to