Hello, Actually i am working on a NFS HA Cluster to export rbd Images with NFS. To test the failover i tried the following:
https://www.sebastien-han.fr/blog/2012/07/06/nfs-over-rbd/ i set the rbdimage to exclusive Lock and the osd and mon timeout to 20 Seconds. on 1 NFS Server i mapped the rbd image with rbd map. after mapping i blocked the TCP ports with iptables to simulate a network outage. Ports tcp 6789 and 6800:7300. I can see with rbd status that the watchers on the CLuster itself are unmapped after timeout. The nfs server gives encountered watch error -110. The NFS Server tries to connect libceph to another mon. When all this happens i cannot unmap the image. Ceph CLuster is 10.2.10 with Centos 7 the NFS Server is Debian 9. The Pacemaker ra is ceph-resource.agents 10.2.10. My consideration is to unmap the image when the network outage happens, because the failover and the Problem that i don't want to mount 1 rbd image with 2 Server to prevent data damage. after network outage is solved. Thanks fpr Help Hauke -- www.w3-creative.de www.westchat.de https://friendica.westchat.de/profile/hauke _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
