Re: [ceph-users] Balanced MDS, all as active and recomended client settings.

2018-02-23 Thread Patrick Donnelly
On Fri, Feb 23, 2018 at 12:54 AM, Daniel Carrasco wrote: > client_permissions = false Yes, this will potentially reduce checks against the MDS. > client_quota = false This option no longer exists since Luminous; quota enforcement is no longer optional. However, if you don't have any quotas t

Re: [ceph-users] Balanced MDS, all as active and recomended client settings.

2018-02-23 Thread Daniel Carrasco
Finally, I've changed the configuration to the following: ## ### MDS ## [mds] mds_cache_memory_limit = 792723456 mds_bal_mode = 1 ## ### Client ## [client] client_cache_size = 32768 client_mount_timeout = 30 client_oc_max_obijects = 2 client_oc_size = 1048576000 client_permissio

Re: [ceph-users] Balanced MDS, all as active and recomended client settings.

2018-02-22 Thread Patrick Donnelly
On Wed, Feb 21, 2018 at 11:17 PM, Daniel Carrasco wrote: > I want to search also if there is any way to cache file metadata on client, > to lower the MDS load. I suppose that files are cached but the client check > with MDS if there are changes on files. On my server files are the most of > time r

Re: [ceph-users] Balanced MDS, all as active and recomended client settings.

2018-02-21 Thread Daniel Carrasco
Thanks, I'll check it. I want to search also if there is any way to cache file metadata on client, to lower the MDS load. I suppose that files are cached but the client check with MDS if there are changes on files. On my server files are the most of time read-only so MDS data can be also cached fo

Re: [ceph-users] Balanced MDS, all as active and recomended client settings.

2018-02-21 Thread Patrick Donnelly
Hello Daniel, On Wed, Feb 21, 2018 at 10:26 AM, Daniel Carrasco wrote: > Is possible to make a better distribution on the MDS load of both nodes?. We are aware of bugs with the balancer which are being worked on. You can also manually create a partition if the workload can benefit: https://ceph

Re: [ceph-users] Balanced MDS, all as active and recomended client settings.

2018-02-21 Thread Daniel Carrasco
2018-02-21 19:26 GMT+01:00 Daniel Carrasco : > Hello, > > I've created a Ceph cluster with 3 nodes to serve files to an high traffic > webpage. I've configured two MDS as active and one as standby, but after > add the new system to production I've noticed that MDS are not balanced and > one server

[ceph-users] Balanced MDS, all as active and recomended client settings.

2018-02-21 Thread Daniel Carrasco
Hello, I've created a Ceph cluster with 3 nodes to serve files to an high traffic webpage. I've configured two MDS as active and one as standby, but after add the new system to production I've noticed that MDS are not balanced and one server get the most of clients petitions (One MDS about 700 or