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The format of each file name is YYYY-MM-DD_HH-MM-SS_PID_LogType.log. The PID (Process ID) can be quite useful when multiple requests are processed simultaneously. Each OpenEngine process will have its own unique PID. Since each HTTP Request and associated Response will be handled by the same OpenEngine, it's quite easy now to pair up the relevant log files. The PID also makes it easy to see when one OpenEngine process may have been terminated due to a runtime error. For instance, in the above screen shot the Debugger log file introduces a new OpenEngine (PID 43028) because the original OpenEngine (44448) used by the previous HTTP Request terminated.

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