similar to: Storage cluster advise, anybody?

Hi Valeri On Fri, Apr 22, 2016 at 10:24 PM, Digimer <lists at alteeve.ca> wrote: > On 22/04/16 03:18 PM, Valeri Galtsev wrote: >> Dear Experts, >> >> I would like to ask everybody: what would you advise to use as a storage >> cluster, or as a distributed filesystem. >> >> I made my own research of what I can do, but I hit a snag with my >>

On 22/04/16 03:18 PM, Valeri Galtsev wrote: > Dear Experts, > > I would like to ask everybody: what would you advise to use as a storage > cluster, or as a distributed filesystem. > > I made my own research of what I can do, but I hit a snag with my > seemingly best choice, so I decided to stay away from it finally, and ask > clever people what they would use. > >

On Fri, 22 Apr 2016, Digimer wrote: > Then you would use pacemaker to manage the floating IP, fence > (stonith) a lost node, and promote drbd->mount FS->start nfsd->start > floating IP. My favorite acronym: stonith -- shoot the other node in the head. -- Paul Heinlein heinlein at madboa.com 45?38' N, 122?6' W

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 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 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 all, I am just trying to consider my options for storing a large mass of data (tens of terrabytes of files) and one idea is to build a clustered FS of some kind. Has anybody had any experience with that? Any recommendations? Thanks in advance for any and all advice. Boris.

Hi, A repository for MooseFS is just born. It provides CentOS 5.5 SRPMS, i386 and x86_64. cd /etc/yum.repos.d/; wget http://centos.kodros.fr/moosefs.repo ; yum install mfs Two points: - DNS may not be up to date where you are. The subdomain has just been created. Please be patient. - I have made an update to the .spec file, to move config files to /etc/mfs instead of /etc. I had no time to test

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.

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 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

Hi all, I just joigned this list, so I'm sorry if this problem has already been reported. I'm running Dovecot 2.0.13 on many servers, one for POP/IMAP access, others for LDA, others for authentification only, etc. All servers are accessing a shared file system, based on MooseFS (www.moosefs.org). The FS is mounted using FUSE. All my Dovecot servers have this configuration :

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 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

Hello listmates, Has anybody attempted to run an XFS in a file mounted via -o loop? The file size is about 20 TB and it resides in a larger XFS filesystem residing on a disk. That filesystem's size is about 25 TB. What sort of degradation should one expect under that sort of scenario? The reason I am asking is that I am trying to run a MooseFS chunkserver in that filesystem-in-a-file and

Hey all, we're in the process of checking out alternatives to our index storage. We're currently storing indexes on a NetApp Metrocluster which works fine, but is very expensive. We're planning a few different setups and doing some actual performance tests on them. Does anyone know some of the IO patterns of the indexes? For instance: - mostly random reads or linear reads/writes?

Hi I have been trying to get puppet working with kickstart. I am trying to install Hadoop on the nodes. Installing puppet from kickstart work and when the machine restarts, certificates are pulled down and hadoop user is created and files are extracted. I want all the user creation etc to be done before the machine reboots so that I can set up init.d scripts to do a start of hadoop . So I

Hello all, I am trying to create a corosync/pacemaker cluster using CentOS 6.0. However, I'm having a great deal of difficulty doing so. Corosync has a valid configuration file and an authkey has been generated. When I run /etc/init.d/corosync I see that only corosync is started. >From experience working with corosync/pacemaker before, I know that this is not enough to have a functioning

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