Re: [ceph-users] jewel/CephFS - misc problems (duplicate strays, mismatch between head items and fnode.fragst)

2016-10-09 Thread Yan, Zheng
On Sat, Oct 8, 2016 at 2:05 AM, Kjetil Jørgensen wrote: > Hi > > On Fri, Oct 7, 2016 at 6:31 AM, Yan, Zheng wrote: >> >> On Fri, Oct 7, 2016 at 8:20 AM, Kjetil Jørgensen >> wrote: >> > And - I just saw another recent thread - >> > http://tracker.ceph.com/issues/17177 - can be an explanation of m

Re: [ceph-users] jewel/CephFS - misc problems (duplicate strays, mismatch between head items and fnode.fragst)

2016-10-07 Thread Kjetil Jørgensen
Hi On Fri, Oct 7, 2016 at 6:31 AM, Yan, Zheng wrote: > On Fri, Oct 7, 2016 at 8:20 AM, Kjetil Jørgensen > wrote: > > And - I just saw another recent thread - > > http://tracker.ceph.com/issues/17177 - can be an explanation of > most/all of > > the above ? > > > > Next question(s) would then be:

Re: [ceph-users] jewel/CephFS - misc problems (duplicate strays, mismatch between head items and fnode.fragst)

2016-10-07 Thread Kjetil Jørgensen
On Fri, Oct 7, 2016 at 4:46 AM, John Spray wrote: > On Fri, Oct 7, 2016 at 1:05 AM, Kjetil Jørgensen > wrote: > > Hi, > > > > context (i.e. what we're doing): We're migrating (or trying to) migrate > off > > of an nfs server onto cephfs, for a workload that's best described as > "big > > piles"

Re: [ceph-users] jewel/CephFS - misc problems (duplicate strays, mismatch between head items and fnode.fragst)

2016-10-07 Thread Yan, Zheng
On Fri, Oct 7, 2016 at 8:20 AM, Kjetil Jørgensen wrote: > And - I just saw another recent thread - > http://tracker.ceph.com/issues/17177 - can be an explanation of most/all of > the above ? > > Next question(s) would then be: > > How would one deal with duplicate stray(s) Here is an untested met

Re: [ceph-users] jewel/CephFS - misc problems (duplicate strays, mismatch between head items and fnode.fragst)

2016-10-07 Thread John Spray
On Fri, Oct 7, 2016 at 1:05 AM, Kjetil Jørgensen wrote: > Hi, > > context (i.e. what we're doing): We're migrating (or trying to) migrate off > of an nfs server onto cephfs, for a workload that's best described as "big > piles" of hardlinks. Essentially, we have a set of "sources": > foo/01/ > foo

Re: [ceph-users] jewel/CephFS - misc problems (duplicate strays, mismatch between head items and fnode.fragst)

2016-10-06 Thread Kjetil Jørgensen
And - I just saw another recent thread - http://tracker.ceph.com/ issues/17177 - can be an explanation of most/all of the above ? Next question(s) would then be: - How would one deal with duplicate stray(s) - How would one deal with mismatch between head items and fnode.fragstat, ceph da

[ceph-users] jewel/CephFS - misc problems (duplicate strays, mismatch between head items and fnode.fragst)

2016-10-06 Thread Kjetil Jørgensen
Hi, context (i.e. what we're doing): We're migrating (or trying to) migrate off of an nfs server onto cephfs, for a workload that's best described as "big piles" of hardlinks. Essentially, we have a set of "sources": foo/01/ foo/0b/<0b> .. and so on bar/02/.. bar/0c/.. .. and so on foo/bar/friend