Re: [ceph-users] rbd: I/O Errors in low memory situations

2015-02-19 Thread Ilya Dryomov
On Fri, Feb 20, 2015 at 2:21 AM, Mike Christie wrote: > On 02/18/2015 06:05 PM, "Sebastian Köhler [Alfahosting GmbH]" wrote: >> Hi, >> >> yesterday we had had the problem that one of our cluster clients >> remounted a rbd device in read-only mode. We found this[1] stack trace >> in the logs. We in

Re: [ceph-users] rbd: I/O Errors in low memory situations

2015-02-19 Thread Mike Christie
On 02/18/2015 06:05 PM, "Sebastian Köhler [Alfahosting GmbH]" wrote: > Hi, > > yesterday we had had the problem that one of our cluster clients > remounted a rbd device in read-only mode. We found this[1] stack trace > in the logs. We investigated further and found similar traces on all > other ma

[ceph-users] rbd: I/O Errors in low memory situations

2015-02-18 Thread Sebastian Köhler [Alfahosting GmbH]
Hi, yesterday we had had the problem that one of our cluster clients remounted a rbd device in read-only mode. We found this[1] stack trace in the logs. We investigated further and found similar traces on all other machines that are using the rbd kernel module. It seems to me that whenever th