Make sure you’ve gone through the suggestions at http://docs.ceph.com/docs/master/cephfs/troubleshooting/ On Thu, Aug 2, 2018 at 12:39 PM Bödefeld Sabine <boedef...@ecospeed.ch> wrote:
> Hi Gregory > > > > Yes they have the same key and permissions. ceph auth list on the mds > server gives > > > > client.admin > > key: <key> > > caps: [mds] allow * > > caps: [mon] allow * > > caps: [osd] allow * > > > > On the client /etc/ceph/ceph.client.admin.keyring > > [client.admin] > > key = <key> > > caps mds = "allow *" > > caps mon = "allow *" > > caps osd = "allow *" > > > > I checked that the key is identical, also that the keyring is the same on > both the clients that work and on the clients where the write operations > fail. > > Do you have any other suggestions? > Kind regards > > Sabine > > > ------------------------------ > > Dr. sc. techn. ETH > Sabine Bödefeld > Senior Consultant > > *ECOSPEED AG* > Drahtzugstrasse 18 > <https://maps.google.com/?q=Drahtzugstrasse+18+CH-8008+Z%C3%BCrich&entry=gmail&source=g> > CH-8008 Zürich > <https://maps.google.com/?q=Drahtzugstrasse+18+CH-8008+Z%C3%BCrich&entry=gmail&source=g> > Tel. +41 44 388 95 04 > Fax: +41 44 388 95 09 > Web: http://www.ecospeed.ch > > [image: trusted-development-72x72] > > > > *Von:* Gregory Farnum [mailto:gfar...@redhat.com] > *Gesendet:* Mittwoch, 1. August 2018 06:10 > *An:* Bödefeld Sabine > *Cc:* ceph-users@lists.ceph.com > *Betreff:* Re: [ceph-users] Write operation to cephFS mount hangs > > > > > > On Tue, Jul 31, 2018 at 7:46 PM Bödefeld Sabine <boedef...@ecospeed.ch> > wrote: > > Hello, > > > > we have a Ceph Cluster 10.2.10 on VMs with Ubuntu 16.04 using Xen as the > hypervisor. We use CephFS and the clients use ceph-fuse to access the files. > > Some of the ceph-fuse clients hang on write operations to the cephFS. On > copying a file to the cephFS, the file is created but it's empty and the > write operation hangs forever. Ceph-fuse version is 10.2.9. > > > > Sounds like the client has the MDS permissions required to update the > CephFS metadata hierarchy, but lacks permission to write to the RADOS pools > which actually store the file data. What permissions do the clients have? > Have you checked with "ceph auth list" or similar to make sure they all > have the same CephX capabilities? > > -Greg > > > > In the logfile of the mds there are no error messages. Also, ceph health > returns HEALTH_OK. > > ceph daemon mds.eco61 session ls reports no problems (if I interpret > correctly): > > { > > "id": 64396, > > "num_leases": 2, > > "num_caps": 32, > > "state": "open", > > "replay_requests": 0, > > "completed_requests": 1, > > "reconnecting": false, > > "inst": "client.64396 192.168.1.179:0\/980852091", > > "client_metadata": { > > "ceph_sha1": "2ee413f77150c0f375ff6f10edd6c8f9c7d060d0", > > "ceph_version": "ceph version 10.2.9 > (2ee413f77150c0f375ff6f10edd6c8f9c7d060d0)", > > "entity_id": "admin", > > "hostname": "eco79", > > "mount_point": "\/mnt\/cephfs", > > "root": "\/" > > } > > }, > > > > Does anyone have an idea where the problem lies? Any help would be greatly > appreciated. > > Thanks very much, > > Kind regards > > Sabine > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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