similar to: Winbind process stuck at 100% after changing use_mmap to no

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

On 03/07/16 13:06, Volker Lendecke wrote: > On Fri, Jul 01, 2016 at 10:00:21AM +0100, Alex Crow wrote: >> 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.

On 04/07/16 20:39, Volker Lendecke wrote: > On Mon, Jul 04, 2016 at 04:58:35PM +0100, Alex Crow wrote: >> • Add the following lines to the [global] section of your Samba >> configuration >> clustering = yes >> idmap backend = tdb2 >> private dir = /gluster/lock >> >> Can you confirm that "private dir" does *not* have to be set in smb.conf to

On 01/07/16 19:28, Jeremy Allison wrote: > On Fri, Jul 01, 2016 at 10:00:21AM +0100, Alex Crow wrote: >> 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

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

On 05/07/16 21:16, Alex Crow wrote: > > > On 05/07/16 21:00, Rowland penny wrote: >> On 05/07/16 20:49, Alex Crow wrote: >>> FYI, by "it did, completely" I meant it failed completely. >>> >>> Even if the only file we have to have on the cluster FS (which now >>> seems to be down solely to the ctdb lock file), I'm still worried

On 05/07/16 20:49, Alex Crow wrote: > FYI, by "it did, completely" I meant it failed completely. > > Even if the only file we have to have on the cluster FS (which now > seems to be down solely to the ctdb lock file), I'm still worried what > these failures mean: > > 1) does the -rw (without -m) test suggest any problems with the > MooseFS FS I'm

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 Tue, Jul 05, 2016 at 10:12:31PM +0100, Alex Crow wrote: > I did not "put it" like anything. I just saw an problem in my setup, > read some documents on the samba wiki, followed some advice and saw some > unexpected behaviour. Perhaps I imagined the wiki to be more moderated > that it really is, so my trust was misplaced. I don't blame anyone, all > I'm trying 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 Fri, Jul 01, 2016 at 10:00:21AM +0100, Alex Crow wrote: > 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

On 03/07/16 21:47, Volker Lendecke wrote: > On Sun, Jul 03, 2016 at 08:42:36PM +0100, Alex Crow wrote: >> I've only put the "private dir" onto MooseFS, as instructed in the CTDB >> docs. > Can you quote these docs, so that we can correct them? > > Also Gluster have the same tip here:

On Fri, Jul 01, 2016 at 10:00:21AM +0100, Alex Crow wrote: > 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

On 03/07/16 21:47, Volker Lendecke wrote: > On Sun, Jul 03, 2016 at 08:42:36PM +0100, Alex Crow wrote: >> I've only put the "private dir" onto MooseFS, as instructed in the CTDB >> docs. > Can you quote these docs, so that we can correct them? Here, under the lustre section. I applied the same config at it's a similar FS (ie distributed with a central metadata

FYI, by "it did, completely" I meant it failed completely. Even if the only file we have to have on the cluster FS (which now seems to be down solely to the ctdb lock file), I'm still worried what these failures mean: 1) does the -rw (without -m) test suggest any problems with the MooseFS FS I'm serving files to users from? 2) does the mmap test failure mean I should not

On 03/07/16 21:47, Volker Lendecke wrote: > On Sun, Jul 03, 2016 at 08:42:36PM +0100, Alex Crow wrote: >> I've only put the "private dir" onto MooseFS, as instructed in the CTDB >> docs. > Can you quote these docs, so that we can correct them? > >> So, in that case, I'm assuming from your comments that it is no worry >> that the mmap test does not

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 "use mmap = no" and with > >> "private dir" removed from the smb.conf. > > Why do you set "use mmap =

On Tue, Jul 05, 2016 at 09:06:54PM +0100, Alex Crow wrote: > >Why are you still using "use mmap = no" then? > Because the wiki article does not explicitly state that mmap > coherence is only needed for areas that store tdb files. I'd perhaps Maybe that is the omission in the docs. I thought I had mentioned that "use mmap" is only relevant for tdb files, not for

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,

. > > Sorry if I offended you, but Volker was telling you what you needed to > do. You were coming over as if you didn't want to do what you were > being advised to do. No, that is just not the case. I just wanted to be sure of the implications of what I was doing and what areas of the operation of Samba and CTDB might be affected given the confusing results of my ping_pong tests.