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Is possible to know the number of times a reverse offload to database servers happen?
Any statistic at cell or database node available?
cellsrvstat (on each individual cell) has a section for 'Reverse Offload related stats'. Ex:
== Reverse Offload related stats ==Number of Remote Nodes (I) 0 7Number of Remote Instances (I) 0 8Current Cell CPU utilization (I) 0 1Number of requests (C) 0 31330706Number of requests that were pushed (C) 0 2085719Average pushback rate for since last stat update (I) 0 0Average pushback rate for last 200 ms (I) 0 0Num of reqs not pushed due to low cell cpu (C) 0 19360302Num of reqs not pushed due to high cell outnet (C) 0 0Num of reqs not pushed due to high db node innet (C) 0 0Num rate increase by reverse offload info from db (C) 0 36398Num rate decrease by reverse offload info from db (C) 0 316093Num rate increases from db node cpu information (C) 0 58745Num rate decreases from db node cpu information (C) 0 7437Num rate decreases from low cell cpu utilization (C) 0 552905618Num rate decreases from high cell outnet util (C) 0 0Num rate decreases from high db node innet util (C) 0 0
Also, while not a "count", there is also the statistic 'cell physical IO bytes sent directly to DB node to balance CPU'.
Hope this helps.
Thanks for the reply.
I've generated the report with Exawatcher.
I think that this stats are the main:
Num of reqs not pushed due to low cell cpu (C) 0 0
Num of reqs not pushed due to high cell outnet (C) 0 0
Num of reqs not pushed due to high db node innet (C) 0 0
Means, that no reverse offloading is ocurring.
As you probably noticed from the output I posted from cellsrvstat and what you posted with Exawatcher, cellssrvstat is one of the collectors for Exawatcher.
Have a great day.