[General] Technical information of component for monitoring

[rnaudin]

Hi all,
We will propose an Admin operation to get technical information about component/SA/SU, in order to audit/alert... with any admin client.

For the statistic data, it will be a push/pull mechanism. The data are proposed periodically by the component/SU, in a 'window'.
The admin operation retrieve the last 'windowed' ones.
The window can be reconfigured at runtime by a component runtime parameter.

I propose this thread to collect the informations that seam relevant to expose.

I have identified common data:
-last start/stop/shutdown (component/SA/SU)
-number of messages processed since last recovery (component/SU)
-number of messages in fault/error since last recovery (component/SU)
-number of messages processed since last window (component/SU)
-number of messages in fault/error since last window (component/SU)

Some interesting statistics:
-ratio of the static part of the processor thread pool (the borrow time against the idle time for all the threads) since last window
-number of threads of the dynamic part of the processor thread pool used since last window

specific data can be exposed by component:
-number of connection failure by BCs (since there a retry policy, the messages in fault/error are not enough)
-number of BPEL instance eg for BPEL...

others ideas?




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