k. You can prevent
> it disabled ceph cache at Openstack Nova host. But your VM’s are going get
> less performance.
>
>
>
> Whats you Ceph & Openstack version?
>
>
>
> Regards
>
>
>
>
>
> De: ceph-users En nombre de ??
> Enviado el: viernes, 17
件人: EDH - Manuel Rios Fernandez
收件人: '刘亮'; 'ceph-users'
发送时间: 2019年5月17日(周五) 15:23
主题: RE: [ceph-users] openstack with ceph rbd vms IO/erros
Did you check your KVM host RAM usage?
We saw this on host very very loaded with overcommit in RAM causes a random
crash of VM.
As you
performance.
Whats you Ceph & Openstack version?
Regards
De: ceph-users En nombre de ??
Enviado el: viernes, 17 de mayo de 2019 9:01
Para: ceph-users
Asunto: [ceph-users] openstack with ceph rbd vms IO/erros
hi:
I hava a openstack cluster with a ceph cluster ，use rbd，
hi:
I hava a openstack cluster with a ceph cluster ，use rbd，ceph cluster use ssd
pool tier.
some vm on openstack sometimes crashed in two case .
1. become readonly filesystem. after reboot ,it work fine again.
2. IO errors . I must repair the file system by fsck. thenreboot , it work
fine
