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[Cluster-devel] Re: [NFS] [PATCH 3/4 Revised] NLM - kernel lockd-statd changes



Olaf Kirch wrote:
But - why do you need to record the address on which the request was
received. at all? Don't you know beforehand on which IP addresses you
will be servicing NFS requests, and which will need to be migrated?


Sorry, somehow I missed this question ...

The intent is to avoid sending notifications to *all* clients. The cluster user mode scripts will have to associate the floating IP(s) with fsid(s) and relies heavily on the information passed by rpc.statd's ha-callout program. My test ha-callout user mode program shows the following:

/mnt/lockd/ha-pg/hatest is invoked with 3 arguments.
   add-client
   192.168.24.146
   192.168.24.149
/mnt/lockd/ha-pg/hatest is invoked with 3 arguments.
   del-client
   192.168.24.145
   192.168.24.149

These info(s) will be used to construct the notification list when notification actually take places.

-- Wendy


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