Managing Hibernate concurrency with remote web service

In Spring/Hibernate application. user may send more than on request with the same data to banking account. here is the case: 1st request reaches first, bank serve it, return OK, set local account data status OK; 2nd request reaches开发者_JS百科 second, bank serve it, return NOK, set local account data status NOK;

Now our local account data status is NOK, although its served well. Any suggestions for this problem.

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A. Make sure the recieving web service queues the requests.

B. Perform not more than a maximum of two threads executions at a time at the web service side. This will provide you clues on why the status is set to NOK.