[ceph-users] How safe is k=2, m=1, min_size=2?

2019-12-13 Thread Dan van der Ster
Hi all, We have said in the past that an EC pool should have min_size=k+1, for the same reasons that a replica 3 pool needs min_size=2. And we've heard several stories about replica 3, min_size=1 leading to incomplete PGs. Taking a quick poll -- did anyone ever suffer an outage on a pool with k=2

[ceph-users] bluestore worries

2019-12-13 Thread Frank R
Hi all, I am thinking about converting a Filestore cluster to Bluestore. The OSD nodes have 16X4TB 7200 SATA OSDs with NVME write journals. The NVME drives should be large enough to house ~30G DB/WAL OSDs. I am worried that I will see a significant performance hit when the deferred writes to the

[ceph-users] Re: ceph-mon using 100% CPU after upgrade to 14.2.5

2019-12-13 Thread Bryan Stillwell
Adding the dev list since it seems like a bug in 14.2.5. I was able to capture the output from perf top: 21.58% libceph-common.so.0 [.] ceph::buffer::v14_2_0::list::append 20.90% libstdc++.so.6.0.19 [.] std::getline, std::allocator > 13.25% libceph-common.so.

[ceph-users] Re: Ceph on CentOS 8?

2019-12-13 Thread Manuel Lausch
Hi, I am interested in el8 Packages as well. Is there any plan to provide el8 packages in the near future? Regards Manuel On Mon, 2 Dec 2019 11:16:01 +0100 Jan Kasprzak wrote: > Hello, Ceph users, > > does anybody use Ceph on recently released CentOS 8? Apparently there > are no el8 pac

[ceph-users] Re: Ceph on CentOS 8?

2019-12-13 Thread Sage Weil
On Fri, 13 Dec 2019, Manuel Lausch wrote: > Hi, > > I am interested in el8 Packages as well. > Is there any plan to provide el8 packages in the near future? Ceph Octopus will be based on CentOS 8. It's due out in March. The centos8 transition is awkward because our python 2 dependencies don't

[ceph-users] Re: Ceph on CentOS 8?

2019-12-13 Thread Martin Verges
Hello Manuel, if you want to get rid of all the OS type problems, you can use our free community version to deploy Ceph. We make sure every dependency is met and you do not need to worry about anything like that anymore. How to do that? - Deploy the croit docker container on an independent manag

[ceph-users] v13.2.8 Mimic released

2019-12-13 Thread Abhishek Lekshmanan
This is the eighth backport release in the Ceph Mimic stable release series. Its sole purpose is to fix a regression that found its way into the previous release. Notable Changes --- * Due to a missed backport, clusters in the process of being upgraded from 13.2.6 to 13.2.7 might

[ceph-users] Re: Can't create new OSD

2019-12-13 Thread Gregory Farnum
[ Re-adding users list ] On Thu, Dec 12, 2019 at 10:12 AM Rodrigo Severo - Fábrica wrote: > > Em qui., 12 de dez. de 2019 às 12:55, Gregory Farnum > escreveu: > > > > On Wed, Dec 11, 2019 at 12:04 PM Rodrigo Severo - Fábrica > > wrote: > >> > >> Hi, > >> > >> > >> Trying to create a new OSD fo

[ceph-users] Re: atime with cephfs

2019-12-13 Thread Oliver Freyermuth
Hi together, I had a look at ceph-fuse code and if I read it correctly, it does indeed not seem to have the relatime behaviour since kernels 2.6.30 implemented. Should I open a ticket on this? Cheers, Oliver Am 02.12.19 um 14:31 schrieb Oliver Freyermuth: > I was thinking about the be