Re: [ceph-users] cephfs: apache locks up after parallel reloads on multiple nodes

2019-09-17 Thread Gregory Farnum
On Tue, Sep 17, 2019 at 8:12 AM Sander Smeenk wrote: > > Quoting Paul Emmerich (paul.emmer...@croit.io): > > > Yeah, CephFS is much closer to POSIX semantics for a filesystem than > > NFS. There's an experimental relaxed mode called LazyIO but I'm not > > sure if it's applicable here. > > Out of c

Re: [ceph-users] cephfs: apache locks up after parallel reloads on multiple nodes

2019-09-17 Thread Sander Smeenk
Quoting Paul Emmerich (paul.emmer...@croit.io): > Yeah, CephFS is much closer to POSIX semantics for a filesystem than > NFS. There's an experimental relaxed mode called LazyIO but I'm not > sure if it's applicable here. Out of curiosity, how would CephFS being more POSIX compliant cause this muc

Re: [ceph-users] cephfs: apache locks up after parallel reloads on multiple nodes

2019-09-12 Thread jesper
Thursday, 12 September 2019, 17.16 +0200 from Paul Emmerich : >Yeah, CephFS is much closer to POSIX semantics for a filesystem than >NFS. There's an experimental relaxed mode called LazyIO but I'm not >sure if it's applicable here. > >You can debug this by dumping slow requests from the MDS se

Re: [ceph-users] cephfs: apache locks up after parallel reloads on multiple nodes

2019-09-12 Thread Paul Emmerich
Yeah, CephFS is much closer to POSIX semantics for a filesystem than NFS. There's an experimental relaxed mode called LazyIO but I'm not sure if it's applicable here. You can debug this by dumping slow requests from the MDS servers via the admin socket Paul -- Paul Emmerich Looking for help w