Error executing API request message, sending error response to caller!
Every 10 seconds the following message appears 5 times in the Application Log: Error executing API request message, sending error response to caller!
Sometimes it goes away, then eventually comes back. These are the surrounding debug/trace messages:
2019-01-14 11:19:19.633-0800 [L: DEBUG] [O: c.t.c.s.c.j.Jsr356ServerConnection] [I: ] [U: ] [S: ] [T: https-jsse-nio-443-exec-10] Receiving BINARY message [ws session id: 7c0] APIRequestMessage [requestId: -1, endpointId: 2687, sessionId: 1605535143, method: GET, entityName: , characteristic: Unknown, target: ]
2019-01-14 11:19:19.633-0800 [L: DEBUG] [O: c.t.c.s.e.DispatchingServerEndpoint] [I: ] [U: ] [S: ] [T: https-jsse-nio-443-exec-10] API REQUEST received [endpoint id: 2979] APIRequestMessage [requestId: -1, endpointId: 2687, sessionId: 1605535143, method: GET, entityName: , characteristic: Unknown, target: ]
2019-01-14 11:19:19.633-0800 [L: TRACE] [O: c.t.c.p.m.DispatchingServerCommunicationModule] [I: ] [U: ] [S: ] [T: https-jsse-nio-443-exec-10] message[com.thingworx.communications.common.messaging.APIRequestMessage]
2019-01-14 11:19:19.633-0800 [L: ERROR] [O: c.t.c.p.m.DispatchingServerCommunicationModule] [I: ] [U: ] [S: ] [T: https-jsse-nio-443-exec-10] Error executing API request message, sending error response to caller!
2019-01-14 11:19:19.633-0800 [L: TRACE] [O: c.t.c.c.e.CommunicationEndpoint] [I: ] [U: ] [S: ] [T: https-jsse-nio-443-exec-10] sending response message [ResponseMessage [requestId: -1, endpointId: 2687, sessionId: 1605535143, code: STATUS_INVALID_SESSION, multipart: false, packet #: 0, total packets: 0]]
Notice that the entityName and target of the APIRequestMessage are empty. Both fields are empty in the Communication Log, as well. It appears the issue is with an invalid session, but how can I determine which agent/web client is the source of this API request?
Thanks!