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Re: [Linux-cluster] Clarification on the FenceAgentAPI



Hi,

On 03/08/2010 06:13 AM, Digimer wrote:
There seems to be some confusion in the API (http://sources.redhat.com/cluster/wiki/FenceAgentAPI) and whether 'option' or 'action' is the proper argument used to tell the fence agent what to do. Currently I check for both, but would like some clarity on this.

Option 'action' (getopt: -o, --action) is preferred and should be supported in every fence agent.

More confusing though is this:

-----------------
Per email conversation, monitor is also a required operations for new agents and if it is single port hw then it will call 'status', if it is multi port hw then it will call 'list'. In both cases it should not print output
-----------------

The API document doesn't talk about the 'monitor' or 'list' arguments. Can someone clarify what these actions are support to request from the agent?

'monitor' - test if fence agent is working as expected, you can login and do a simple operation.

'list' - should list all available devices/VM/.. proper format is csv:
    #id, #alias
    * more columns can be added but they are not standardized and used yet
    * lines are not ordered in any way
    e.g.:
    24,bar-01
    20,bar-03
    21,bar-02
    22,bar-02

m,


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