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https://issues.apache.org/jira/browse/CLOUDSTACK-1978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13631929#comment-13631929
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Wei Zhou commented on CLOUDSTACK-1978:
--------------------------------------

We encountered this problem last Friday. After my colleagues reboot the console 
proxy vm, it works well . 
I just checked the logs on console proxy vm. It shows that 
"java.lang.OutOfMemoryError: Java heap space".
It began after this:


2013-04-12 09:55:00,611 DEBUG [cloud.agent.Agent] (UgentTask-5:) Sending ping: 
Seq 21-37464:  { Cmd , MgmtId: -1, via: 21, Ver: v1, Flags: 11, 
[{"PingCommand":{"hostType":"ConsoleProxy","hostId":21,"wait":0}}] }
2013-04-12 09:55:00,653 DEBUG [cloud.agent.Agent] (Agent-Handler-2:) Received 
response: Seq 21-37464:  { Ans: , MgmtId: 345051234346, via: 21, Ver: v1, 
Flags: 100010, 
[{"PingAnswer":{"_command":{"hostType":"ConsoleProxy","hostId":21,"wait":0},"result":true,"wait":0}}]
 }
2013-04-12 09:55:46,236 INFO  [cloud.consoleproxy.ConsoleProxy] 
(Thread-643142:) Added viewer object 
com.cloud.consoleproxy.ConsoleProxyVncClient@1a05ee0
2013-04-12 09:55:46,236 DEBUG [resource.consoleproxy.ConsoleProxyResource] 
(Thread-643142:) Report proxy load info, proxy : 139, load: {
  "connections": [
    {
      "id": 7129,
      "clientInfo": "",
      "host": "172.16.1.25",
      "port": 5900,
      "tag": "cd0eb6d8-8cb3-46c8-ba35-aa808e87036e",
      "createTime": 1365760546235,
      "lastUsedTime": 1365760546235
    }
  ]
}
2013-04-12 09:55:46,236 INFO  [cloud.consoleproxy.ConsoleProxyVncClient] 
(Thread-643143:) Connect to VNC server directly. host: 172.16.1.25, port: 5900
2013-04-12 09:55:46,237 DEBUG [resource.consoleproxy.ConsoleProxyResource] 
(Thread-643143:) Ensure route for 172.16.1.25 via 172.16.1.254
2013-04-12 09:55:46,237 DEBUG [resource.consoleproxy.ConsoleProxyResource] 
(Thread-643143:) addRouteToInternalIp: localgw=172.16.1.254, eth1ip=172.16.1.2, 
eth1mask=255.255.255.0,destIp=172.16.1.25
2013-04-12 09:55:46,237 DEBUG [resource.consoleproxy.ConsoleProxyResource] 
(Thread-643143:) addRouteToInternalIp: dest ip 172.16.1.25 is in the same 
subnet as eth1 ip 172.16.1.2
2013-04-12 09:55:46,237 INFO  [consoleproxy.vnc.VncClient] (Thread-643143:) 
Connecting to VNC server 172.16.1.25:5900...
2013-04-12 09:55:46,246 INFO  [consoleproxy.vnc.VncClient] (Thread-643143:) 
Connecting to VNC server succeeded, start session
2013-04-12 09:55:47,194 ERROR [cloud.consoleproxy.ConsoleProxyVncClient] 
(Thread-643143:) Unexpected exception (will retry until timeout)
java.lang.OutOfMemoryError: Java heap space
2013-04-12 09:55:47,195 DEBUG [cloud.agent.Agent] (Agent-Handler-3:) Received 
response: Seq 21-37465:  { Ans: , MgmtId: 345051234346, via: 21, Ver: v1, 
Flags: 100010, [{"AgentControlAnswer":{"result":true,"wait":0}}] }
2013-04-12 09:55:48,195 INFO  [cloud.consoleproxy.ConsoleProxyVncClient] 
(Thread-643143:) Connect to VNC server directly. host: 172.16.1.25, port: 5900
2013-04-12 09:55:48,195 DEBUG [resource.consoleproxy.ConsoleProxyResource] 
(Thread-643143:) Ensure route for 172.16.1.25 via 172.16.1.254
2013-04-12 09:55:48,196 DEBUG [resource.consoleproxy.ConsoleProxyResource] 
(Thread-643143:) addRouteToInternalIp: localgw=172.16.1.254, eth1ip=172.16.1.2, 
eth1mask=255.255.255.0,destIp=172.16.1.25
2013-04-12 09:55:48,196 DEBUG [resource.consoleproxy.ConsoleProxyResource] 
(Thread-643143:) addRouteToInternalIp: dest ip 172.16.1.25 is in the same 
subnet as eth1 ip 172.16.1.2
2013-04-12 09:55:48,196 INFO  [consoleproxy.vnc.VncClient] (Thread-643143:) 
Connecting to VNC server 172.16.1.25:5900...
2013-04-12 09:55:48,205 INFO  [consoleproxy.vnc.VncClient] (Thread-643143:) 
Connecting to VNC server succeeded, start session
2013-04-12 09:55:48,348 ERROR [cloud.consoleproxy.ConsoleProxyVncClient] 
(Thread-643143:) Unexpected exception (will retry until timeout)
java.lang.OutOfMemoryError: Java heap space

                
> openvswitch -  unable to start console session for SSVM CPVM  user VMs 
> -----------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-1978
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1978
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>          Components: Management Server
>    Affects Versions: 4.1.0
>         Environment: MS      Ubuntu 12.04.2  ASF 4.1   latest build    4/8/13
> host     Ubuntu 12.04.2  ASF 4.1   latest build    4/8/13   libvirtd   0.10.2 
>    openvswitch  
>            Reporter: angeline shen
>            Priority: Critical
>             Fix For: 4.1.0
>
>         Attachments: agent.log.gz, management-server.log.gz, 
> Screenshot-r-17-VM - Mozilla Firefox.png, Screenshot-s-12-VM - Mozilla 
> Firefox.png, Screenshot-v-13-VM - Mozilla Firefox.png, Screenshot-z1vpc1G1V2 
> - Mozilla Firefox.png
>
>
> MS      Ubuntu 12.04.2  ASF 4.1   latest build    4/8/13
> host     Ubuntu 12.04.2  ASF 4.1   latest build    4/8/13   libvirtd   0.10.2 
>    openvswitch  
>            openvswitch  1.4.0-1ubuntu1.5  
> 1. advance zone, create isolate network and VPC network
> 2. create user VMs in both networks
> 3. unable to start console session for SSVM CPVM  user VMs 

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