ustcweizhou commented on issue #3164: Cannot open console: ConsoleProxyServlet NullPointerException URL: https://github.com/apache/cloudstack/issues/3164#issuecomment-467621552 @AndreaGHG is there any log in management-server.log ? When I open a console, I got the following logs ``` 2019-02-26 21:28:36,506 DEBUG [c.c.a.t.Request] (qtp858242339-18:null) (logid:) Seq 1-2750010522463109132: Sending { Cmd , MgmtId: 6827823599962, via: 1(node32), Ver: v1, Flags: 100011, [{"com.cloud.agent.api.GetVncPortCommand":{"id":3,"name":"s-3-VM","wait":0}}] } 2019-02-26 21:28:36,514 DEBUG [c.c.a.t.Request] (AgentManager-Handler-14:null) (logid:) Seq 1-2750010522463109132: Processing: { Ans: , MgmtId: 6827823599962, via: 1, Ver: v1, Flags: 10, [{"com.cloud.agent.api.GetVncPortAnswer":{"address":"10.11.118.32","port":5900,"result":true,"wait":0}}] } 2019-02-26 21:28:36,514 DEBUG [c.c.a.t.Request] (qtp858242339-18:null) (logid:) Seq 1-2750010522463109132: Received: { Ans: , MgmtId: 6827823599962, via: 1(node32), Ver: v1, Flags: 10, { GetVncPortAnswer } } 2019-02-26 21:28:36,514 DEBUG [c.c.s.ConsoleProxyServlet] (qtp858242339-18:null) (logid:) Port info 10.11.118.32 2019-02-26 21:28:36,514 INFO [c.c.s.ConsoleProxyServlet] (qtp858242339-18:null) (logid:) Parse host info returned from executing GetVNCPortCommand. host info: 10.11.118.32 2019-02-26 21:28:36,524 DEBUG [c.c.s.ConsoleProxyServlet] (qtp858242339-18:null) (logid:) Compose console url: http://10-11-118-125.cloud.leaseweb.net/ajax?token=QzfjXWRklXcLqh0NMp-uVMds87zWmdAEe427UG-0kqz-dRRlXZbP5VQL2Ch4WOym47w3Xogh0VEs5I-ZieOYGOWKRRhYeVeq7Isq9ocasPBa-kQ8cCb_rc7oGcC5HYJenAwgaN5xmIVyemyjgTlS6zt7e4PLqeMKH7vd_vgzyqUvJnHLOvygzcoZjT_AsqU-mwHuXnRxNaBroduX-F20wCBxwmYNqIH7Mg07XNDTb_HHa9zFp_ZbD6E3YgvjJdf_aJb8PBrS1DOCt5U5LsGpNw 2019-02-26 21:28:36,525 DEBUG [c.c.s.ConsoleProxyServlet] (qtp858242339-18:null) (logid:) the console url is :: <html><title>s-3-VM</title><frameset><frame src="http://10-11-118-125.cloud.leaseweb.net/ajax?token=QzfjXWRklXcLqh0NMp-uVMds87zWmdAEe427UG-0kqz-dRRlXZbP5VQL2Ch4WOym47w3Xogh0VEs5I-ZieOYGOWKRRhYeVeq7Isq9ocasPBa-kQ8cCb_rc7oGcC5HYJenAwgaN5xmIVyemyjgTlS6zt7e4PLqeMKH7vd_vgzyqUvJnHLOvygzcoZjT_AsqU-mwHuXnRxNaBroduX-F20wCBxwmYNqIH7Mg07XNDTb_HHa9zFp_ZbD6E3YgvjJdf_aJb8PBrS1DOCt5U5LsGpNw";></frame></frameset></html> 2019-02-26 21:28:36,726 DEBUG [c.c.a.m.AgentManagerImpl] (AgentManager-Handler-15:null) (logid:) SeqA 4-757: Processing Seq 4-757: { Cmd , MgmtId: -1, via: 4, Ver: v1, Flags: 11, [{"com.cloud.agent.api.ConsoleAccessAuthenticationCommand":{"_host":"10.11.118.32","_port":"5900","_vmId":"800c35b2-5eb9-4ed5-b167-bcacee909862","_sid":"kAJX5Sno8j3t47L_0LJjNg","_ticket":"gSZ/UHkRkFVjleZ2J0tjNbMZiK4=","_isReauthenticating":false,"wait":0}}] } 2019-02-26 21:28:36,726 DEBUG [c.c.c.AgentHookBase] (AgentManager-Handler-15:null) (logid:) Console authentication. Ticket in url for 10.11.118.32:5900-800c35b2-5eb9-4ed5-b167-bcacee909862 is gSZ/UHkRkFVjleZ2J0tjNbMZiK4= 2019-02-26 21:28:36,726 DEBUG [c.c.c.AgentHookBase] (AgentManager-Handler-15:null) (logid:) Console authentication. Ticket in 1 minute boundary for 10.11.118.32:5900-800c35b2-5eb9-4ed5-b167-bcacee909862 is gSZ/UHkRkFVjleZ2J0tjNbMZiK4= 2019-02-26 21:28:36,734 DEBUG [c.c.a.m.AgentManagerImpl] (AgentManager-Handler-15:null) (logid:) SeqA 4-757: Sending Seq 4-757: { Ans: , MgmtId: 6827823599962, via: 4, Ver: v1, Flags: 100010, [{"com.cloud.agent.api.ConsoleAccessAuthenticationAnswer":{"_success":true,"_isReauthenticating":false,"_port":0,"result":true,"wait":0}}] } ```
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