[ceph-users] Bug in RadosGW resharding? Hangs again...

Hi! After having a completely broken radosgw setup due to damaged buckets, I completely deleted all rgw pools, and started from scratch. But my problem is reproducible. After pushing ca. 10 objects into a bucket, the resharding process appears to start, and the bucket is now

Re: [ceph-users] radosgw fails with "ERROR: failed to initialize watch: (34) Numerical result out of range"

i created the dump output but it looks very cryptic to me so i can't really make much sense of it. is there anything to look for in particular? i think i am going to read up on how interpret ltrace output... BR Alex - Ursprüngliche Mail - Von: "Brad Hubbard" An:

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[ceph-users] Adding a host node back to ceph cluster

Good day, I'm having an issue re-deploying a host back into my production ceph cluster. Due to some bad memory (picked up by a scrub) which has been replaced I felt the need to re-install the host to be sure no host files were damaged. Prior to decommissioning the host I set the crush weight's

[ceph-users] Error message in the logs: "meta sync: ERROR: failed to read mdlog info with (2) No such file or directory"

Hello, We've have a radosgw cluster(verion 12.2.2) in multisite mode. Our cluster is formed by one master realm, with one master zonegroup and two zones(which one is the master zone). We've followed the instructions of Ceph documentation to install and configure our cluster. The cluster works

Re: [ceph-users] Adding a host node back to ceph cluster

Maybe for the future: rpm {-V|--verify} [select-options] [verify-options] Verifying a package compares information about the installed files in the package with information about the files taken from the package metadata stored in the rpm database. Among other things,

Re: [ceph-users] slow requests on a specific osd

My understanding is that the exact same objects would move back to the OSD if weight went 1 -> 0 -> 1 given the same Cluster state and same object names, CRUSH is deterministic so that would be the almost certain result. On Mon, Jan 15, 2018 at 2:46 PM, lists wrote: > Hi

Re: [ceph-users] Switching a pool from EC to replicated online ?

You would need to create a new pool and migrate the data to that new pool. Replicated pool fronting an EC pool for RBD is a known-bad workload: http://docs.ceph.com/docs/master/rados/operations/cache-tiering/#a-word-of-caution but others mileage may vary I suppose. In order to migrate you could

Re: [ceph-users] slow requests on a specific osd

Hi Wes, On 15-1-2018 20:32, Wes Dillingham wrote: I dont hear a lot of people discuss using xfs_fsr on OSDs and going over the mailing list history it seems to have been brought up very infrequently and never as a suggestion for regular maintenance. Perhaps its not needed. True, it's just

Re: [ceph-users] slow requests on a specific osd

Hi Wes, On 15-1-2018 20:57, Wes Dillingham wrote: My understanding is that the exact same objects would move back to the OSD if weight went 1 -> 0 -> 1 given the same Cluster state and same object names, CRUSH is deterministic so that would be the almost certain result. Ok, thanks! So

Re: [ceph-users] Luminous RGW Metadata Search

Finally, the issue that has haunted me for quite some time turned out to be a ceph.conf issue: I had osd_pool_default_pg_num = 100 osd_pool_default_pgp_num = 100 once I changed to osd_pool_default_pg_num = 32 osd_pool_default_pgp_num = 32 then no issue to start the second rgw process. No idea

Re: [ceph-users] slow requests on a specific osd

I dont hear a lot of people discuss using xfs_fsr on OSDs and going over the mailing list history it seems to have been brought up very infrequently and never as a suggestion for regular maintenance. Perhaps its not needed. One thing to consider trying, and to rule out something funky with the

Re: [ceph-users] Changing device-class using crushtool

Hi Wido, On Wed, Jan 10, 2018 at 11:09 AM, Wido den Hollander wrote: > Hi, > > Is there a way to easily modify the device-class of devices on a offline > CRUSHMap? > > I know I can decompile the CRUSHMap and do it, but that's a lot of work in a > large environment. > > In larger

Re: [ceph-users] Ceph Future

Hi Massimiliano, On Thu, Jan 11, 2018 at 6:15 AM, Massimiliano Cuttini wrote: > Hi everybody, > > i'm always looking at CEPH for the future. > But I do see several issue that are leaved unresolved and block nearly > future adoption. > I would like to know if there are some

[ceph-users] Ceph Day Germany 2018

Hey Cephers! We are proud to announce our first Ceph Day in 2018 which happens on February 7 at the Deutsche Telekom AG Office in Darmstadt (25 km South from Frankfurt Airport). The conference schedule[1] is being finished and the registration is already in progress[2]. If you're in Europe,

Re: [ceph-users] Ceph Day Germany 2018

On 01/16/2018 06:51 AM, Leonardo Vaz wrote: Hey Cephers! We are proud to announce our first Ceph Day in 2018 which happens on February 7 at the Deutsche Telekom AG Office in Darmstadt (25 km South from Frankfurt Airport). The conference schedule[1] is being finished and the registration

Re: [ceph-users] radosgw fails with "ERROR: failed to initialize watch: (34) Numerical result out of range"

On Tue, Jan 16, 2018 at 1:35 AM, Alexander Peters wrote: > i created the dump output but it looks very cryptic to me so i can't really > make much sense of it. is there anything to look for in particular? Yes, basically we are looking for any line that ends in "= 34". You

Re: [ceph-users] Safe to delete data, metadata pools?

Thanks John, I removed these pools on Friday and as you suspected there was no impact. Regards, Rich On 8 January 2018 at 23:15, John Spray wrote: > On Mon, Jan 8, 2018 at 2:55 AM, Richard Bade wrote: >> Hi Everyone, >> I've got a couple of pools that I

Re: [ceph-users] Removing cache tier for RBD pool

On Mon, Jan 8, 2018 at 6:08 AM, Jens-U. Mozdzen wrote: > Hi *, > > trying to remove a caching tier from a pool used for RBD / Openstack, we > followed the procedure from http://docs.ceph.com/docs/mast > er/rados/operations/cache-tiering/#removing-a-writeback-cache and ran > into

[ceph-users] slow requests on a specific osd

Hi, On our three-node 24 OSDs ceph 10.2.10 cluster, we have started seeing slow requests on a specific OSD, during the the two-hour nightly xfs_fsr run from 05:00 - 07:00. This started after we applied the meltdown patches. The specific osd.10 also has the highest space utilization of all