[Ocfs2-devel] dln domain_map is not consistent after a node was fencing

[Joseph Qi]

Maybe node1 mistaken cleared slots of node2 and node3 when mounting
after system restarted.
So what's the output of slot allocation?

On 2016/1/11 19:52, Shichangkuo wrote:
> Hi,
> 
> I have three nodes in one cluster. Node1 disconnect TCP with Node2 and Node3, and then fencing by restarting.
> When re-mounted LUNA on Node1, I found strange issue: Node1 this it was the only node mounted on LUNA, the kernel log as follows:
> Jan  4 16:46:14 cvk12 kernel: [   99.223321] o2dlm: Joining domain 0400EAB0791F4B4C85F3FCB5AAC76A1D ( 5 ) 1 nodes
> 
> I don't think Node1 had a mistake by reading heartbeat on other slots.
> The most possible reason maybe other nodes responded JOIN_OK_NO_MAP after receiving dlm_query_join messages by Node1.
> Threr are two ways to respond JOIN_OK_NO_MAP in dlm_query_join_handler:
>     1) dlm->dlm_state == DLM_CTXT_LEAVING
>     2) dlm->dlm_state == DLM_CTXT_NEW &&
>                     dlm->joining_node == DLM_LOCK_RES_OWNER_UNKNOWN
> But neither of them is suitable as node already mounted.
> I have no idea about it, If any other encount or familiar with this issue, please let me know.
> 
> Thanks,
> Changkuo.
> 
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