Issue:
sdgtw probe which was previously working would no longer connect to SNOW.
No environment changes known.
According to customer, no firewall was blocking the connection from the specific Primary hub/source machine to SN but the connection failed with the MDR error despite restart/cold start, reinstall, or robot restart.
Jan 25 21:20:11:654 [Thread-53, sdgtw] Exception in making the connection to MDR:java.lang.NullPointerException
at com.nimsoft.probe.gateway.sdgtw.SDGtwProbe.initiateAlarmSynchronizer(SDGtwProbe.java:270)
at com.nimsoft.probe.gateway.sdgtw.SDGtwProbe.initializeAndConfigureNim(SDGtwProbe.java:170)
at com.nimsoft.probe.gateway.sdgtw.SDGtwProbe.access$000(SDGtwProbe.java:68)
at com.nimsoft.probe.gateway.sdgtw.SDGtwProbe$1.run(SDGtwProbe.java:130)
at java.lang.Thread.run(Unknown Source)
sdgtw Nim.log showed:
[26/01/19 02:20:13:013 MST] [qtp53485142-31] ERROR common.GenericSOAPDispatchService: com.sun.xml.ws.client.ClientTransportException thrown in Invoke With Retry: Exception Message: 'HTTP transport error: java.net.ConnectException: Connection refused: connect': attempting call #2
[26/01/19 02:20:19:019 MST] [qtp53485142-31] ERROR common.GenericSOAPDispatchService: Type of exception thrown in Invoke Try: 'com.sun.xml.ws.client.ClientTransportException': Unknown problem occurred with message: 'HTTP transport error: java.net.ConnectException: Connection refused: connect'
[26/01/19 02:20:19:019 MST] [qtp53485142-31] ERROR common.GenericSOAPDispatchService: WebserviceException thrown in Invoke With Retry: Exhausted all retries with exception message 'HTTP transport error: java.net.ConnectException: Connection refused: connect'
Cause:
- Change in Security policy (the previous evening) impacted connectivity
Additional Information:
Suggest that the Nim.log MDR Exception error -> when the connection is refused, contain some reference/pointer to options for resolving connection issues like this just in case other customers do similar changes that require proxy configuration to be added to the sdgtw config.