Re: [ceph-users] What's the best practice for Erasure Coding

2019-07-08 Thread Lei Liu
Hi Frank, Thanks for sharing valuable experience. Frank Schilder 于2019年7月8日周一 下午4:36写道: > Hi David, > > I'm running a cluster with bluestore on raw devices (no lvm) and all > journals collocated on the same disk with the data. Disks are spinning > NL-SAS. Our goal was to build storage at lowest

[ceph-users] krbd / kcephfs - jewel client features question

2019-10-17 Thread Lei Liu
Hi Cephers, We have some ceph clusters in 12.2.x version, now we want to use upmap balancer,but when i set set-require-min-compat-client to luminous, it's failed # ceph osd set-require-min-compat-client luminous Error EPERM: cannot set require_min_compat_client to luminous: 6 connected client(s)

Re: [ceph-users] krbd / kcephfs - jewel client features question

2019-10-17 Thread Lei Liu
Well, I know kernel 4.13 is full support with ceph luminous and I know that Redhat backports a lot of things to the 3.10 kernel, So which is the matching version?  3.10-862 or above version ?Thanks 发自我的iPhone-- Original --From: 刘磊 Date: Thu,Oct 17,2019 9:38 PMTo: cep

[ceph-users] kernel cephfs - too many caps used by client

2019-10-17 Thread Lei Liu
Hi cephers, We have some ceph clusters use cephfs in production(mount with kernel cephfs), but several of clients often keep a lot of caps(millions) unreleased. I know this is due to the client's inability to complete the cache release, errors might have been encountered, but no logs. client kern

Re: [ceph-users] kernel cephfs - too many caps used by client

2019-10-18 Thread Lei Liu
lo Lei, > > On Thu, Oct 17, 2019 at 8:43 PM Lei Liu wrote: > > > > Hi cephers, > > > > We have some ceph clusters use cephfs in production(mount with kernel > cephfs), but several of clients often keep a lot of caps(millions) > unreleased. > > I know this is due

Re: [ceph-users] kernel cephfs - too many caps used by client

2019-10-18 Thread Lei Liu
"ceph version 12.2.12 (1436006594665279fe734b4c15d7e08c13ebd777) luminous (stable)": 37, "ceph version 12.2.8 (ae699615bac534ea496ee965ac6192cb7e0e07c0) luminous (stable)": 203 } } Lei Liu 于2019年10月19日周六 上午10:09写道: > Thanks for your reply. > > Yes, Already set

Re: [ceph-users] krbd / kcephfs - jewel client features question

2019-10-19 Thread Lei Liu
"release": "luminous", "num": 6 }, "group": { "features": "0x3ffddff8eeacfffb", "release": "luminous", "num": 1 } } both 0x7fddff8ee8

Re: [ceph-users] krbd / kcephfs - jewel client features question

2019-10-21 Thread Lei Liu
luminous", "num": 6 } } Thanks again. Ilya Dryomov 于2019年10月21日周一 下午6:38写道: > On Sat, Oct 19, 2019 at 2:00 PM Lei Liu wrote: > > > > Hello llya, > > > > After updated client kernel version to 3.10.0-862 , ceph featur