WebSphere Enterprise Service Bus, Version 6.2.0 Operating Systems: AIX, HP-UX, i5/OS, Linux, Solaris, Windows


Asynchronous callback with asynchronous implementation

ARM statistics available for callback requests and callback executions using different threads with an asynchronous implementation

Parameters

Event monitoring for SCA components includes the event points that are shown in black Black event point, while the event points shown in blue Blue event point are used only to calculate and fire PMI/ARM statistics.

In the table and diagram below, the "current" ARM transaction (denoted as X1) is created when the calling service component was invoked for the first time. If the caller is not a service component, the current arm transaction will be used, or a new one will be created. If it is not the starting transaction it will have a parent. This is represented in the following table and diagram with the notation Xn.Xn+1. These are used to show the transaction lineage. Every SCA invocation starts a new transaction, which is parented by the current transaction of the caller. You can create new transactions and you can access the current transaction, but this will not modify the SCA transaction lineage.

Table 1. Invocation of request and return result
Type Statistics Formula ARM Transaction
Common TotalResponseTime t2 - t0 X0.X1
RequestDeliveryTime t'0 - t0 X1.X2
ResponseDeliveryTime t2 - t'2
GoodRequests CountEXIT
BadRequests CountFAILURE
ResponseTime t'3 - t'0
Reference A GoodRefRequest CountEXIT X0.X1
BadRefRequests CountFAILURE
RefResponseTime t1 - t0
Target A GoodTargetSubmit CountEXIT X1.X2
BadTargetSubmit CountFAILURE
TargetSubmitTime t'1 - t'0

Diagram of asynchronous callback with an asynchronous implementation

Table 2. Invocation of callback
Type Statistics Formula ARM Transaction
Reference B GoodCBSubmit CountEXIT X1.X2
BadCBSubmit CountFAILURE
CBSubmitTime t'3 - t'2
Target B GoodCB CountEXIT X0.X1
BadCB CountFAILURE
CBTime t3 - t2

reference Reference topic

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Timestamp icon Last updated: 21 June 2010


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