[ceph-users] 3mon cluster, after ifdown the public network interface of leader mon, sendQ of one peon monitor will suddenly increase sharply

Dear Cephers: I meet a problem now: my cluster has 3 servers, each server has 1mon and 1osd node0(mon0+osd0)、node1（mon1+osd1）、node2（mon2+osd2） 3 mon(mon0 192.168.202.35/24, mon1 192.168.202.36/24, mon2 192.168.202.37/24) public network 192.168.2.*/24 cluster network 172.16.2.*/24 operation:

Re: [ceph-users] Debian Wheezy repo broken

Has anyone got any suggestions on how to either circumvent this problem? On Fri, 12 May 2017, Harald Hannelius wrote: I am unable to perform ceph-install {node} on Debian Wheezy. [server][DEBUG ] Hit http://security.debian.org wheezy/updates/main Translation-en [server][DEBUG ] Hit

Re: [ceph-users] Changing SSD Landscape

On Thu, May 18, 2017 at 3:11 AM, Christian Balzer wrote: > On Wed, 17 May 2017 18:02:06 -0700 Ben Hines wrote: > >> Well, ceph journals are of course going away with the imminent bluestore. > Not really, in many senses. > But we should expect far fewer writes to pass through the

Re: [ceph-users] Changing SSD Landscape

> -Original Message- > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Dan > van der Ster > Sent: 18 May 2017 09:30 > To: Christian Balzer > Cc: ceph-users > Subject: Re: [ceph-users] Changing SSD Landscape > > On Thu,

[ceph-users] Mixing cache-mode writeback with read-proxy

Hi list, Does it makes sense to split an SSD in two parts, one on which i will put writeback cache-mode and an other with read-proxy mode in order to benefit of the two modes ? Thks -- *Guillaume Comte* 06 25 85 02 02 | guillaume.co...@blade-group.com 90 avenue des

Re: [ceph-users] OSD crash loop - FAILED assert(recovery_info.oi.snaps.size())

Hmmm, after crashing for a few days every 30 seconds it's apparently running normally again. Weird. I was thinking since it's looking for a snapshot object, maybe re-enabling snaptrimming and removing all the snapshots in the pool would remove that object (and the problem)? Never got to that point

Re: [ceph-users] Available tools for deploying ceph cluster as a backend storage ?

Let me explore the code to my needs. Thanks Chris Regards, Shambhu From: Bitskrieg [mailto:bitskr...@bitskrieg.net] Sent: Thursday, May 18, 2017 6:40 PM To: Shambhu Rajak; wes_dilling...@harvard.edu Cc: ceph-users@lists.ceph.com Subject: Re: [ceph-users] Available tools for deploying ceph cluster

Re: [ceph-users] Available tools for deploying ceph cluster as a backend storage ?

Hi, On 05/18/2017 02:28 PM, Shambhu Rajak wrote: > I want to deploy ceph-cluster as a backend storage for openstack, so I > am trying to find the best tool available for deploying ceph cluster. > > Few are in my mind: > > https://github.com/ceph/ceph-ansible > >

Re: [ceph-users] Changing SSD Landscape

> BTW, you asked about Samsung parts earlier. We are running these > SM863's in a block storage cluster: > > Model Family: Samsung based SSDs > Device Model: SAMSUNG MZ7KM240HAGR-0E005 > Firmware Version: GXM1003Q > > > 177 Wear_Leveling_Count 0x0013 094 094 005Pre-fail >

Re: [ceph-users] Debian Wheezy repo broken

On Thu, May 18, 2017 at 5:53 AM, Harald Hannelius wrote: > > > Has anyone got any suggestions on how to either circumvent this problem? It is not clear what version of ceph you want to install and on what server. A full paste of the log (this looks like ceph-deploy output?)

Re: [ceph-users] corrupted rbd filesystems since jewel

I'm unfortunately out of ideas at the moment. I think the best chance of figuring out what is wrong is to repeat it while logs are enabled. On Wed, May 17, 2017 at 4:51 PM, Stefan Priebe - Profihost AG wrote: > No i can't reproduce it with active logs. Any furthr ideas? >

Re: [ceph-users] Available tools for deploying ceph cluster as a backend storage ?

HI Wes Since I want a production deployment, full-fledged management would be necessary for administrating, maintaining, could you suggest on this lines. Thanks, Shambhu From: Wes Dillingham [mailto:wes_dilling...@harvard.edu] Sent: Thursday, May 18, 2017 6:08 PM To: Shambhu Rajak Cc:

[ceph-users] Troubleshooting remapped PG's + OSD flaps

Hello, Env;- Bluestore EC 4+1 v11.2.0 RHEL7.3 16383 PG We did our resiliency testing and found OSD's keeps on flapping and cluster went to error state. What we did:- 1. we have 5 node cluster 2. poweroff/stop ceph.target on last node and waited everything seems to reach back to normal. 3.

Re: [ceph-users] Troubleshooting remapped PG's + OSD flaps

"340 osds: 101 up, 112 in" This is going to be your culprit. Your CRUSH map is in a really weird state. How many OSDs do you have in this cluster? When OSDs go down, secondary OSDs take over for it, but when OSDs get marked out, the cluster re-balances to distribute the data according to how

[ceph-users] cache tiering write vs read promotion

Hello, I'm using cache tiering with cephfs on latest ceph jewel release. For my use case, I wanted to make new writes go "directly" to the cache pool , and any use other logic for promoting when reading, like after 2 reads, for example. I see that the following settings are available:

[ceph-users] Available tools for deploying ceph cluster as a backend storage ?

Hi ceph-users, I want to deploy ceph-cluster as a backend storage for openstack, so I am trying to find the best tool available for deploying ceph cluster. Few are in my mind: https://github.com/ceph/ceph-ansible https://github.com/01org/virtual-storage-manager/wiki/Getting-Started-with-VSM Is

Re: [ceph-users] Available tools for deploying ceph cluster as a backend storage ?

Hi, ceph-deploy is a nice tool, it does a lot of work for you and is not very hard to understand, if you know the basics of ceph. http://docs.ceph.com/docs/master/rados/deployment/ Regards, Eugen Zitat von Shambhu Rajak : Hi ceph-users, I want to deploy

Re: [ceph-users] Available tools for deploying ceph cluster as a backend storage ?

If you dont want a full fledged configuration management approach ceph-deploy is your best bet. http://docs.ceph.com/ docs/master/rados/deployment/ceph-deploy-new/ On Thu, May 18, 2017 at 8:28 AM, Shambhu Rajak wrote: > Hi ceph-users, > > > > I want to deploy ceph-cluster