Re: [ceph-users] PGs stuck stale during data migration and OSD restart

2015-08-31 Thread Gerd Jakobovitsch
I tried pg query, but it doesn't return, it hungs forever. As I understand it, when the PG is stale, there is no OSD to get the query. Am I right? I did the tunables in 2 steps, but didn't wait for all the data being moved before doing the second step. I rolled back to intermediate tunables -

Re: [ceph-users] PGs stuck stale during data migration and OSD restart

2015-08-31 Thread Gregory Farnum
On Sat, Aug 29, 2015 at 11:50 AM, Gerd Jakobovitsch wrote: > Dear all, > > During a cluster reconfiguration (change of crush tunables from legacy to > TUNABLES2) with large data replacement, several OSDs get overloaded and had > to be restarted; when OSDs stabilize, I got a number of PGs marked st

[ceph-users] PGs stuck stale during data migration and OSD restart

2015-08-29 Thread Gerd Jakobovitsch
Dear all, During a cluster reconfiguration (change of crush tunables from legacy to TUNABLES2) with large data replacement, several OSDs get overloaded and had to be restarted; when OSDs stabilize, I got a number of PGs marked stale, even when all OSDs where this data used to be located show