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2011 Nov 05
1
glusterfs over rdma ... not.
...;volumeserver>:<volumeid/volumeport> -o <options> <mountpoint> Options: man 8 mount.glusterfs To display the version number of the mount helper: mount.glusterfs --version ================================== So, what is the rdma magic that will let me do this? hjm -- Harry Mangalam - Research Computing, OIT, Rm 225 MSTB, UC Irvine [ZOT 2225] / 92697 Google Voice Multiplexer: (949) 478-4487 MSTB Lat/Long: (33.642025,-117.844414) (paste into Google Maps) -- This signature has been OCCUPIED! -------------- next part -------------- An HTML attachment was scrubbed... URL: <ht...
2011 Oct 26
2
Some questions about theoretical gluster failures.
...y gluster node replace a mountpoint node and does that happen transparently? (I haven't tested this). - can you intermix distributed and mirrored volumes? This is of particular interest since some of our users want to have replicated data and some don't care. Many thanks hjm -- Harry Mangalam - Research Computing, OIT, Rm 225 MSTB, UC Irvine [ZOT 2225] / 92697 Google Voice Multiplexer: (949) 478-4487 MSTB Lat/Long: (33.642025,-117.844414) (paste into Google Maps) -- This signature has been OCCUPIED! -------------- next part -------------- An HTML attachment was scrubbed... URL: <ht...
2009 Feb 13
4
uid/gid settings in rsyncd.conf not respected?
...s hosts deny = * hosts allow = [deleted] ignore errors = no ignore nonreadable = yes transfer logging = yes timeout = 600 refuse options = checksum dry-run dont compress = *.gz *.tgz *.zip *.z *.rpm *.deb *.iso *.bz2 *.tbz -- Harry Mangalam - Research Computing, NACS, E2148, Engineering Gateway, UC Irvine 92697 949 824-0084(o), 949 285-4487(c) --- Good judgment comes from experience; Experience comes from bad judgment. [F. Brooks.]
2012 Jun 08
1
too many redirects at the gluster download page
...loop The webpage at http://www.gluster.org/download/ has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer. Bug or feature? -- Harry Mangalam,Research Computing, OIT, Rm 225 MSTB, UC Irvine [mailcode 2225] Google Voice Multiplexer: (949) 478-4487 415 South Circle View Dr, Irvine, CA, 92697 [shipping] Lat/Long: (33.642025,-117.844414) [paste into Google Maps] -- -------------- next part -------------- An HTML attachment was scrubbed... U...
2012 Aug 03
1
Gluster-users Digest, Vol 51, Issue 49
> Message: 4 > Date: Fri, 27 Jul 2012 15:29:41 -0700 > From: Harry Mangalam <hjmangalam at gmail.com> > Subject: [Gluster-users] Change NFS parameters post-start > To: gluster-users <gluster-users at gluster.org> > Message-ID: > <CAEib2OnKfENr8NhVwkvpsw21C5QJmzu_=C9j144p2Gkn7KP=LQ at mail.gmail.com> > Content-Type: text/plain; charset=ISO-...
2012 Jul 26
2
kernel parameters for improving gluster writes on millions of small writes (long)
...t any approach? Is there a doc that suggests optimal kernel parameters for gluster? I guess the only other option is to use the glusterfs as an NFS mount and use the NFS client's caching..? That will help on a single process but decrease the overall cluster bandwidth considerably. -- Harry Mangalam - Research Computing, OIT, Rm 225 MSTB, UC Irvine [m/c 2225] / 92697 Google Voice Multiplexer: (949) 478-4487 415 South Circle View Dr, Irvine, CA, 92697 [shipping] MSTB Lat/Long: (33.642025,-117.844414) (paste into Google Maps)
2012 Jul 24
1
temp fix: Simultaneous reads and writes from specific apps to IPoIB volume seem to conflict and kill performance.
...ehind-window-size: 1024MB performance.flush-behind: on They did not seem to help at all and I'd still like an explanation of what they're supposed to do. The upshot is that this seems like, if not a bug, then at least an opportunity to improve gluster perfomance considerably. -- Harry Mangalam - Research Computing, OIT, Rm 225 MSTB, UC Irvine [m/c 2225] / 92697 Google Voice Multiplexer: (949) 478-4487 415 South Circle View Dr, Irvine, CA, 92697 [shipping] MSTB Lat/Long: (33.642025,-117.844414) (paste into Google Maps)
2011 Nov 07
2
Gluster/RDMA
To Harry Mangalam about Gluster/RDMA: make sure these modules are loaded # modprobe -v rdma_ucm # modprobe -v ib_uverbs # modprobe -v ib_ucm To run the subnet manager # modprobe -v ib_umad Make sure libibverbs and (libmlx4 or libmthca) RPMs are installed. I don't understand why they appropriate modules are...
2003 Jul 16
1
Integrating R in OpenOffice
...doesn't sound right) Or if not, how is libR.so informed that it has to load an additional package? - Is this process integral to the runtime so that once Bioconductor or other package is installed via 'R INSTALL ..', libR.so can access them just like R? -- Cheers, Harry Harry J Mangalam - 949 856 2847 (v&f) - hjm@tacgi.com <<plain text preferred>>
2013 Feb 27
4
GlusterFS performance
Hello! I have GlusterFS installation with parameters: - 4 servers, connected by 1Gbit/s network (760-800 Mbit/s by iperf) - Distributed-replicated volume with 4 bricks and 2x4 redundancy formula. - Replicated volume with 2 bricks and 2x2 formula. I found some trouble: if I try to copy huge amount of files (94000 files, 3Gb size), this process takes terribly long time (from 20 to 40 minutes). I
2012 Oct 03
1
Retraction: Protocol stacking: gluster over NFS
...BDUC except for KT's workflow, it's repeatable and we can't recover from it smoothly. So we should move away from it. I haven't been able to test it on a 3.x kernel (but will after this weekend); it's possible that it might work better, but I'm not optimistic. -- Harry Mangalam - Research Computing, OIT, Rm 225 MSTB, UC Irvine [m/c 2225] / 92697 Google Voice Multiplexer: (949) 478-4487 415 South Circle View Dr, Irvine, CA, 92697 [shipping] MSTB Lat/Long: (33.642025,-117.844414) (paste into Google Maps) -- Passive-Aggressive Supporter of the The Canada Party: <http://...
2013 Dec 10
4
Structure needs cleaning on some files
Hi All, When reading some files we get this error: md5sum: /path/to/file.xml: Structure needs cleaning in /var/log/glusterfs/mnt-sharedfs.log we see these errors: [2013-12-10 08:07:32.256910] W [client-rpc-fops.c:526:client3_3_stat_cbk] 1-testvolume-client-0: remote operation failed: No such file or directory [2013-12-10 08:07:32.257436] W [client-rpc-fops.c:526:client3_3_stat_cbk]
2001 Sep 17
3
computational capacity of Linux network
Hi, This is not an R question per ce, but I feel like this is a right community to ask it. As a part of our work we run a lot of non-interactive computational jobs. To increase the throughput we would like to distribute the load over the entire network and we are looking at Linux network as a platform. Ideally we would like to be able to submit a job to the network, rather than to a computer, and
2009 Mar 26
2
rsync questions
Hi all: I got basic rsync working (not server mode). Basically it went to another server via ssh, backed up subdireactories and stored on the local server. But I am trying to use the feature of "exclude" and could not get it working rigjt. I am trying to back up /export/home/* (all of users) on another machine but exclude a certain types of files. here is one of my tested exclude
2012 Jun 20
2
How Fatal? "Server and Client lk-version numbers are not same, reopening the fds"
Despite Joe Landman's sage advice to the contrary, I'm trying to convince an IPoIB volume to service requests from a GbE client via some /etc/hosts manipulation. (This may or may not be related to the automount problems we're having as well.) This has worked (and continues to work) well on another cluster with a slightly older version of gluster - the 3.3.0qa42 version on both server
2012 Aug 23
1
Stale NFS file handle
Hi, I'm a bit curious of error messages of the type "remote operation failed: Stale NFS file handle". All clients using the file system use Gluster Native Client, so why should stale nfs file handle be reported? Regards, /jon -------------- next part -------------- An HTML attachment was scrubbed... URL:
2002 Oct 08
2
temporal simulation
Hello, I am new to R and was wondering if anybody would be able to advice me on the following query. Is there any package available to generate a mixed Poisson process, temporal data, using R? If anybody has accomplished this before or has any advice I would appreciate it. Regards, Elaine Hand -- Elaine Hand Department of Community Health & General Practice Trinity College Dublin
2012 Sep 18
4
cannot create a new volume with a brick that used to be part of a deleted volume?
Greetings, I'm running v3.3.0 on Fedora16-x86_64. I used to have a replicated volume on two bricks. This morning I deleted it successfully: ######## [root at farm-ljf0 ~]# gluster volume stop gv0 Stopping volume will make its data inaccessible. Do you want to continue? (y/n) y Stopping volume gv0 has been successful [root at farm-ljf0 ~]# gluster volume delete gv0 Deleting volume will erase
2012 Nov 02
8
Very slow directory listing and high CPU usage on replicated volume
Hi all, I am having problems with painfully slow directory listings on a freshly created replicated volume. The configuration is as follows: 2 nodes with 3 replicated drives each. The total volume capacity is 5.6T. We would like to expand the storage capacity much more, but first we need to figure this problem out. Soon after loading up about 100 MB of small files (about 300kb each), the
2012 Jun 19
1
"Too many levels of symbolic links" with glusterfs automounting
I set up a 3.3 gluster volume for another sysadmin and he has added it to his cluster via automount. It seems to work initially but after some time (days) he is now regularly seeing this warning: "Too many levels of symbolic links" $ df: `/share/gl': Too many levels of symbolic links when he tries to traverse the mounted filesystems. I've been using gluster with static mounts