Re: [ceph-users] Using CephFS in LXD containers

gt; mounts points was 20x more throughput than 1 mount point). It wasn't until > we got up to about 100 concurrent mount points that we capped our > throughput, but our total throughput just kept going up the more mount > points we had of ceph-fuse for cephfs. > > On Tue, Dec 12, 2017 at

[ceph-users] Using CephFS in LXD containers

Hello, everyone! We have recently started to use CephFS (Jewel, v12.2.1) from a few LXD containers. We have mounted it on the host servers and then exposed it in the LXD containers. Do you have any recommendations (dos and don'ts) on this way of using CephFS? Thank you, in advance! Kind

Re: [ceph-users] Kernel version recommendation

t;> configured Gentoo server in 5ms. Please don't be an OS bigot while touting >> that you should learn the proper tool. Redhat is not the only distribution >> with a large support structure. >> >> The OS is a tool, but you should actually figure out and use the proper &g

Re: [ceph-users] Kernel version recommendation

nse. > There over 10k people working at redhat to produce a stable os. I am > very pleased with the level of knowledge here and what redhat is doing > general. > > I just have to finish with; You people working on Ceph are doing a great > job and are working on a great project! > >

Re: [ceph-users] Kernel version recommendation

recommendation. We'll continue to use 4.10, then. Thanks, a lot! Kind regards, Bogdan On Fri, Oct 27, 2017 at 8:04 PM, Ilya Dryomov <idryo...@gmail.com> wrote: > On Fri, Oct 27, 2017 at 6:33 PM, Bogdan SOLGA <bogdan.so...@gmail.com> > wrote: > > Hello, everyone! > > >

Re: [ceph-users] Kernel version recommendation

ally find the kernel I want and then > disable RBD features until the RBD is compatible to be mapped by that > kernel. > > On Fri, Oct 27, 2017 at 12:34 PM Bogdan SOLGA <bogdan.so...@gmail.com> > wrote: > >> Hello, everyone! >> >> We have recently upgraded our Ceph pool

[ceph-users] Kernel version recommendation

Hello, everyone! We have recently upgraded our Ceph pool to the latest Luminous release. On one of the servers that we used as Ceph clients we had several freeze issues, which we empirically linked to the concurrent usage of some I/O operations - writing in an LXD container (backed by Ceph) while

Re: [ceph-users] Creating a custom cluster name using ceph-deploy

has been > > deprecated. > > > > On Oct 15, 2017 6:29 PM, "Bogdan SOLGA" <bogdan.so...@gmail.com> wrote: > >> > >> Hello, everyone! > >> > >> We are trying to create a custom cluster name using the latest > ceph-deploy >

[ceph-users] Creating a custom cluster name using ceph-deploy

Hello, everyone! We are trying to create a custom cluster name using the latest ceph-deploy version (1.5.39), but we keep getting the error: *'ceph-deploy new: error: subnet must have at least 4 numbers separated by dots like x.x.x.x/xx, but got: cluster_name'* We tried to run the new command

[ceph-users] CephFS vs RBD

Hello, everyone! We are working on a project which uses RBD images (formatted with XFS) as home folders for the project's users. The access speed and the overall reliability have been pretty good, so far. >From the architectural perspective, our main focus is on providing a seamless user

Re: [ceph-users] Java librados issue

Thank you, Wido! It was indeed the keyring; the connection works after setting it. Thanks a lot for your help! Bogdan On Tue, Dec 27, 2016 at 3:43 PM, Wido den Hollander <w...@42on.com> wrote: > > > Op 27 december 2016 om 14:25 schreef Bogdan SOLGA < > b

Re: [ceph-users] Java librados issue

, but to no avail. Any further recommendations are highly welcome. Thanks, Bogdan On Tue, Dec 27, 2016 at 3:11 PM, Wido den Hollander <w...@42on.com> wrote: > > > Op 26 december 2016 om 19:24 schreef Bogdan SOLGA < > bogdan.so...@gmail.com>: > > > > >

[ceph-users] Advised Ceph release

Hello, everyone! We have recently setup a Ceph cluster running on the Hammer release (v0.94.5), and we would like to know what is the advised release for preparing a production-ready cluster - the LTS version (Hammer) or the latest stable version (Infernalis)? The cluster works properly (so

Re: [ceph-users] RBD - 'attempt to access beyond end of device'

gt; Is this just one machine or RBD image or is there more? > > I'd first create a snapshot and then try running fsck on it, it should > hopefully tell you if there's a problem in setup or a corruption. > > If it's not important data and it's just one instance of this problem t

Re: [ceph-users] RBD - 'attempt to access beyond end of device'

; is and tries to reach beyond. >> >> Is this just one machine or RBD image or is there more? >> >> I'd first create a snapshot and then try running fsck on it, it should >> hopefully tell you if there's a problem in setup or a corruption. >> >> If it's no

Re: [ceph-users] RBD - 'attempt to access beyond end of device'

gt; Jan > > On 12 Nov 2015, at 21:46, Bogdan SOLGA <bogdan.so...@gmail.com> wrote: > > By running rbd resize > <http://docs.ceph.com/docs/master/rbd/rados-rbd-cmds/> and then > 'xfs_growfs -d' on the filesystem. > > Is there a better way to resize an RBD image a

[ceph-users] RBD - 'attempt to access beyond end of device'

Hello everyone! We have a recently installed Ceph cluster (v 0.94.5, Ubuntu 14.04), and today I noticed a lot of 'attempt to access beyond end of device' messages in the /var/log/syslog file. They are related to a mounted RBD image, and have the following format: *Nov 12 21:06:44 ceph-client-01

Re: [ceph-users] Erasure coded pools and 'feature set mismatch' issue

" tunables. > > -- > Adam > > On Sun, Nov 8, 2015 at 11:48 PM, Bogdan SOLGA <bogdan.so...@gmail.com> > wrote: > > Hello Greg! > > > > Thank you for your advice, first of all! > > > > I have tried to adjust the Ceph tunables detailed in this pa

Re: [ceph-users] Erasure coded pools and 'feature set mismatch' issue

se it shouldn't be the EC pool causing trouble; it's the > CRUSH tunables also mentioned in that thread. Instructions should be > available in the docs for using older tunable that are compatible with > kernel 3.13. > -Greg > > > On Saturday, November 7, 2015, Bogdan SOLGA <bogd

[ceph-users] Erasure coded pools and 'feature set mismatch' issue

Hello, everyone! I have recently created a Ceph cluster (v 0.94.5) on Ubuntu 14.04.3 and I have created an erasure coded pool, which has a caching pool in front of it. When trying to map RBD images, regardless if they are created in the rbd or in the erasure coded pool, the operation fails with

[ceph-users] ceph-deploy on lxc container - 'initctl: Event failed'

Hello, everyone! I just tried to create a new Ceph cluster, using 3 LXC clusters as monitors, and the 'ceph-deploy mon create-initial' command fails for each of the monitors with a 'initctl: Event failed' error, when running the following command: [ceph-mon-01][INFO ] Running command: sudo

Re: [ceph-users] ceph-deploy - default release

Hello! A retry of this question, as I'm still stuck at the install step, due to the old version issue. Any help is highly appreciated. Regards, Bogdan On Sat, Oct 31, 2015 at 9:22 AM, Bogdan SOLGA <bogdan.so...@gmail.com> wrote: > Hello everyone! > > I'm struggling to get a n

[ceph-users] ceph-deploy - default release

Hello everyone! I'm struggling to get a new Ceph cluster installed, and I'm wondering why am I always getting the version 0.80.10 installed, regardless if I'm running just 'ceph-deploy install' or 'ceph-deploy install --release hammer'. Trying a 'ceph-deploy install -h', on the --release command

Re: [ceph-users] CephFS questions

. Thanks, again! Kind regards, Bogdan On Mon, Mar 23, 2015 at 12:47 PM, John Spray john.sp...@redhat.com wrote: On 22/03/2015 08:29, Bogdan SOLGA wrote: Hello, everyone! I have a few questions related to the CephFS part of Ceph: * is it production ready? Like it says at http://ceph.com/docs

[ceph-users] CephFS questions

Hello, everyone! I have a few questions related to the CephFS part of Ceph: - is it production ready? - can multiple CephFS be created on the same cluster? The CephFS creation http://docs.ceph.com/docs/master/cephfs/createfs/ page describes how to create a CephFS using (at least)

Re: [ceph-users] PGs issue

Of Bogdan SOLGA Sent: 19 March 2015 20:51 To: ceph-users@lists.ceph.com Subject: [ceph-users] PGs issue Hello, everyone! I have created a Ceph cluster (v0.87.1-1) using the info from the 'Quick deploy' page, with the following setup: • 1 x admin / deploy node; • 3 x OSD and MON

Re: [ceph-users] PGs issue

the output of `ceph osd dump` and ceph osd tree` Thanks Sahana On Fri, Mar 20, 2015 at 11:47 AM, Bogdan SOLGA bogdan.so...@gmail.com wrote: Hello, Nick! Thank you for your reply! I have tested both with setting the replicas number to 2 and 3, by setting the 'osd pool default size = (2|3

Re: [ceph-users] PGs issue

Thank you for your suggestion, Nick! I have re-weighted the OSDs and the status has changed to '256 active+clean'. Is this information clearly stated in the documentation, and I have missed it? In case it isn't - I think it would be recommended to add it, as the issue might be encountered by

Re: [ceph-users] PGs issue

. Thanks Sahana On Fri, Mar 20, 2015 at 2:08 PM, Bogdan SOLGA bogdan.so...@gmail.com wrote: Thank you for your suggestion, Nick! I have re-weighted the OSDs and the status has changed to '256 active+clean'. Is this information clearly stated in the documentation, and I have missed it? In case

[ceph-users] PGs issue

Hello, everyone! I have created a Ceph cluster (v0.87.1-1) using the info from the 'Quick deploy http://docs.ceph.com/docs/master/start/quick-ceph-deploy/' page, with the following setup: - 1 x admin / deploy node; - 3 x OSD and MON nodes; - each OSD node has 2 x 8 GB HDDs; The