Is it possible to write a PMDA which its metrics are accumulative metrics of
another PMDA from other hosts? for example - a PMDA that calculates all RPC
metrics of 5 hosts it monitors, therefore inside the 'total-RPC' PMDA
there's a call to pmFetch for the rpc metrics (from linux PMDA) from the
other hosts (the context is - PM_CONTEXT_HOST). Actually the call to
'pmFetch' for the accumulative metrics calls pmFetch for each host - for the
calculated metrics.
Does it matter if the PMDA's are installed as DSO?
thanks in advance, gilly
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