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After starting the Messaging Gateway agent, why does the MGW_GATEWAY view show an AGENT_STATUS of NOT_STARTED?

April 26, 2017agent Gateway Messaging mgw_gateway view

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After starting the Messaging Gateway agent, why does the MGW_GATEWAY view show an AGENT_STATUS of NOT_STARTED?

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The MGW_GATEWAY view provides status information about the gateway agent. A NOT_STARTED status indicates that the agent is not running. If the MGW agent encounters a fatal error while starting or running, the LAST_ERROR_MSG field is nonnull. Do the following: Check if a MGW log file has been generated and whether it indicates any errors. If a log file is not present, the gateway agent process was probably not started. Verify that the listener has been started. Verify that the values specified in tnsnames.ora and listener.ora are correct. Incorrect or mismatched values will prevent the listener from starting the MGW agent. process. Verify that the values specified in mgw.ora are correct. Incorrect values may cause the MGW agent to terminate due to abnormal error conditions. Correct the problem indicated by the error and start the MGW agent.