Database Reference
In-Depth Information
Async SB is unavailable; BPEL, DB is overloaded or down; threads stuck; called
SCA is down; messages cannot be correlated; the message structure invalid; an
unknown Correlation ID is provided in the response message.
6. Exceptions (parts 6 and 7 in the previous figure) in southbound ESB/ABCS lay-
ers, occurred during the execution of EP and/or VETRO pattern operations, will
be propagated back to the master controller where they will be handled as men-
tioned in the previous paragraph. The exception causes are the same as for north-
bound, but the southbound layer is completely our responsibility; here, we will do
everything possible to deliver the service message to the composition member.
Basic reties of individual adapters will be handled in OSB locally within the busi-
ness interval and only then will the error be transmitted back to SB. There are
some common reasons for this: the JMS queue is unavailable for async, HTTP
Servlet is down, network problems, general OSB technical problems (proxy ser-
vice not found or disabled), the application server is down, application data
source is unavailable, and an error situation on the adapter factory (OSB) together
with responses from southbound applications/services will be properly audited
(parts 2 and 3 in the previous figure).
In the following table, we will consolidate core exception handlings' properties with re-
gards to a particular framework, a component in a framework, its role, operations per-
formed, possible errors, error causes with relation to the operation, possible resolution ac-
tions, and areas where these recovery operations will be performed. Again, we are not go-
ing to perform the full mapping operation or present the complete list of values for the op-
eration and possible reasons for an error to occur. This is simply because there is no space
for it, and our role is to give you directions and basis for your team exercise. Anyway,
your own SOA Framework layering cannot be much different from what is presented in
the previous figure. So, after two to three workshops with developers, you will compose
the complete spreadsheet, which will be ready to be deployed on ESR and exposed via the
Inventory Endpoint for ErM lookup and fire. Regarding error code, you must map the ex-
ternal code to your own coding system and vice-versa if necessary. This mapping will be
implemented in DVM or (better) in ESR.
Property
Common values (the list is incomplete for brevity; extend it with your values, but avoid redundancy)
Framework
This list is complete. It includes South [ABCS1, EBS1], EBF, and North [ABCS2, EBS2]
Service Role Some more roles can be assigned in addition to the following:
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