Re: [ceph-users] iSCSI Multipath (Load Balancing) vs RBD Exclusive Lock

2018-03-11 Thread Mike Christie
On 03/11/2018 08:54 AM, shadow_lin wrote: > Hi Jason, > How the old target gateway is blacklisted? Is it a feature of the target > gateway(which can support active/passive multipath) should provide or is > it only by rbd excusive lock? > I think excusive lock only let one client can write to rbd

Re: [ceph-users] XFS Metadata corruption while activating OSD

2018-03-11 Thread Christian Wuerdig
Hm, so you're running OSD nodes with 2GB of RAM and 2x10TB = 20TB of storage? Literally everything posted on this list in relation to HW requirements and related problems will tell you that this simply isn't going to work. The slightest hint of a problem will simply kill the OSD nodes with OOM.

Re: [ceph-users] rbd-nbd not resizing even after kernel tweaks

2018-03-11 Thread Alex Gorbachev
On Sun, Mar 11, 2018 at 4:23 AM, Mykola Golub wrote: > On Sat, Mar 10, 2018 at 08:25:15PM -0500, Alex Gorbachev wrote: >> I am running into the problem described in >> https://lkml.org/lkml/2018/2/19/565 and >> https://tracker.ceph.com/issues/23137 >> >> I went ahead and

Re: [ceph-users] iSCSI Multipath (Load Balancing) vs RBD Exclusive Lock

2018-03-11 Thread Jason Dillaman
On Sun, Mar 11, 2018 at 9:54 AM, shadow_lin wrote: > Hi Jason, > How the old target gateway is blacklisted? When the newly active target gateway breaks the lock of the old target gateway, that process will blacklist the old client [1]. > Is it a feature of the target >

Re: [ceph-users] iSCSI Multipath (Load Balancing) vs RBD Exclusive Lock

2018-03-11 Thread shadow_lin
Hi Jason, How the old target gateway is blacklisted? Is it a feature of the target gateway(which can support active/passive multipath) should provide or is it only by rbd excusive lock? I think excusive lock only let one client can write to rbd at the same time,but another client can obtain

Re: [ceph-users] Slow requests troubleshooting in Luminous - details missing

2018-03-11 Thread Alex Gorbachev
On Mon, Mar 5, 2018 at 11:20 PM, Brad Hubbard wrote: > On Fri, Mar 2, 2018 at 3:54 PM, Alex Gorbachev > wrote: >> On Thu, Mar 1, 2018 at 10:57 PM, David Turner wrote: >>> Blocked requests and slow requests are synonyms in

Re: [ceph-users] rbd-nbd not resizing even after kernel tweaks

2018-03-11 Thread Mykola Golub
On Sat, Mar 10, 2018 at 08:25:15PM -0500, Alex Gorbachev wrote: > I am running into the problem described in > https://lkml.org/lkml/2018/2/19/565 and > https://tracker.ceph.com/issues/23137 > > I went ahead and built a custom kernel reverting the change >