Web service built from other web services
How can a web service built from other web services have transaction properties? Compare this mechanism with that provided by a TP monitor.
Expert
A web service built from other web services has transaction properties using nested transaction model. It allows transactions to consist of other transactions: a top-level transaction may contain sub-transactions. In a nested transaction model, the sub-transactions are within the scope of the top-level transaction (t). Transactions in a nested transaction model also adhere to the ACID properties of transactions—that is, t completes effectively only when ts1 and ts2 both complete successfully. When either sub-transaction fails, the top-level transaction would fail, thus guarantee atomicity.
The nested transaction model permits services to be built independently and later joined into applications. Each service can find out the scope of its transaction boundaries. The application or service which orchestrates the combination of services controls the scope of top-level transaction. The transaction processing (TP) monitors enhance the underlying operating system’s scalability and its capability to manage big transaction volumes, by taking on some of the roles of the underlying operating system. For illustration, a TP monitor, in addition to managing transactions, too performs connection pooling and task or thread scheduling and pooling.
Normal 0 false false
Give a brief explanation of Cloud services with example.
Explain within the numeric pyramid to which tropic level does base always refer to.
Explain the term Load balancing?
What is meant by Permanent virtual circuit and Switched virtual circuit?
Define NetBIOS protocol. Explain accurately in simple words.
Write down the name of online to-do list application.
Define DNS? Why they are generally used?
please im posting this assignment which is to be done according to the marking criteria and the case study attached.
Describe the TCP connections required in the FTP.
18,76,764
1944369 Asked
3,689
Active Tutors
1421899
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!