[ceph-users] Re: Forcing Posix Permissions On New CephFS Files

2024-05-09 Thread Alexander E. Patrakov
Hello Matthew, You can inherit the group, but not the user, of the containing folder. This can be achieved by making the folder setgid and then making sure that the client systems have a proper umask. See the attached PDF for a presentation that I conducted on this topic to my students in the past

[ceph-users] Re: Forcing Posix Permissions On New CephFS Files

2024-05-09 Thread Paul Mezzanini
We use shared directories for projects in our hpc cluster and use acls to achieve this. https://www.redhat.com/sysadmin/linux-access-control-lists -- Paul Mezzanini Platform Engineer III Research Computing Rochester Institute of Technology Sent from my phone, please excuse typos and brevity

[ceph-users] Re: RBD Mirroring with Journaling and Snapshot mechanism

2024-05-09 Thread Ramana Krisna Venkatesh Raja
On Tue, May 7, 2024 at 7:54 AM Eugen Block wrote: > > Hi, > > I'm not the biggest rbd-mirror expert. > As understand it, if you use one-way mirroring you can failover to the > remote site, continue to work there but there's no failover back to > primary site. You would need to stop client IO on DR

[ceph-users] Re: RBD Mirroring with Journaling and Snapshot mechanism

2024-05-09 Thread Ramana Krisna Venkatesh Raja
On Thu, May 2, 2024 at 2:56 AM V A Prabha wrote: > > Dear Eugen, > We have a scenario of DC and DR replication, and planned to explore RBD > mirroring with both Journaling and Snapshot mechanism. > I have a 5 TB storage at Primary DC and 5 TB storage at DR site with 2 > different > ceph clusters

[ceph-users] Call for Proposals: Cephalocon 2024

2024-05-09 Thread Noah Lehman
Hi Ceph community, We are excited to share the CFP for Cephalocon 2024 , running December 4-5 in Geneva, Switzerland. The deadline to submit a proposal is August 11, 2024. You can submit a proposal here

[ceph-users] Re: MDS crash in interval_set: FAILED ceph_assert(p->first <= start)

2024-05-09 Thread Dejan Lesjak
Hi Xiubo, Thanks. We'll check that. Cheers, Dejan On 9. 05. 24 07:22, Xiubo Li wrote: On 5/8/24 17:36, Dejan Lesjak wrote: Hi Xiubo, On 8. 05. 24 09:53, Xiubo Li wrote: Hi Dejan, This is a known issue and please see https://tracker.ceph.com/issues/61009. For the workaround please see