Re: [ceph-users] cephfs 'lag' / hang

2015-12-21 Thread Yan, Zheng
On Sat, Dec 19, 2015 at 4:34 AM, Don Waterloo wrote: > I have 3 systems w/ a cephfs mounted on them. > And i am seeing material 'lag'. By 'lag' i mean it hangs for little bits of > time (1s, sometimes 5s). > But very non repeatable. > > If i run > time find . -type f

Re: [ceph-users] cephfs 'lag' / hang

2015-12-21 Thread Don Waterloo
On 21 December 2015 at 03:23, Yan, Zheng wrote: > On Sat, Dec 19, 2015 at 4:34 AM, Don Waterloo > wrote: > > I have 3 systems w/ a cephfs mounted on them. > > And i am seeing material 'lag'. By 'lag' i mean it hangs for little bits > of > > time (1s,

[ceph-users] cephfs 'lag' / hang

2015-12-18 Thread Don Waterloo
I have 3 systems w/ a cephfs mounted on them. And i am seeing material 'lag'. By 'lag' i mean it hangs for little bits of time (1s, sometimes 5s). But very non repeatable. If i run time find . -type f -print0 | xargs -0 stat > /dev/null it might take ~130ms. But, it might take 10s. Once i've done