The Smoking Gun
Learn what went wrong with CF, and how the unnoticed SQLException was the culprit that everyone ignored.
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What happened to CF
At this point, the postmortem analysis agreed with the symptoms from the outage itself: CF appeared to have caused both the IVR and kiosk check-in to hang. The biggest remaining question was still: “What happened to CF?”
Actually, at first glance, this method looks well constructed. Use of the try/finally block indicates the author’s desire to clean up resources. In fact, this very cleanup block has appeared in some Java books on the market. Too bad it contains a fatal flaw.
Suppose the JDBC connection was created before the failover. The IP address used to create the connection will ...