Communication between client and server broken after inactivity

Vaadin 6 / 7 / 8
1

Hi all,

I’m using Vaadin 7.1.0 integrated to OSGi and I enabled client push by exporting atmosphere packages version 1.0.12.

In my case, my application is unusable after a few minutes of inactivity. When I click on a button or any component which needs to communicate with the server, nothing happens, only progress indicator at the middle of the page … running indefinitely and I have no explication for it (that why I’m writing this post). I suspect the version of atmosphere which is not the same as that used by vaadin.

Any idea?

Thanks,
Mohammed

2

No one? No idea?

Mohammed.

3

Hello,

I watched what was happening in browser console and I see that on each action (button click for example) requests are sent like :

INFO: Making UIDL Request with params: 83bdf227-6be0-4f1a-9511-ce97a30fcb08[["51","com.vaadin.shared.ui.button.ButtonServerRpc",
"click",[{"type":"1", "button":"LEFT", "clientY":"253", "clientX":"63", "altKey":false, "relativeX":"63", "shiftKey":false, "metaKey":false, 
"relativeY":"46", "ctrlKey":false}]]] 0.js:205

Thu Sep 05 09:59:11 GMT+200 2013 com.vaadin.client.VConsole
INFO: Sending push message: 83bdf227-6be0-4f1a-9511-ce97a30fcb08[["51","com.vaadin.shared.ui.button.ButtonServerRpc","click",
[{"type":"1", "button":"LEFT", "clientY":"253", "clientX":"63", "altKey":false, "relativeX":"63", "shiftKey":false, "metaKey":false, 
"relativeY":"46", "ctrlKey":false}]]]

And then a response is written and sent :

INFO: Received push message: for(;;);[{"changes" : [["change",{"pid":"103"},["39",{"id":"103","animate":false,"dragmode":2,"selectmode":"multi",
"cols":5,"rows":1,"firstrow":0,"totalrows":1,"pagelength":7,"colfooters":false,"vcolorder":["1"]
,"pb-ft":0,"pb-l":0,"clearKeyMap":true,
"v":{"selected":[],"firstvisible":0,"sortcolumn":"1","sortascending":true,"reqrows":-1,"reqfirstrow":-1,"collapsedcolumns":["2","3","4","5"]
,
"noncollapsiblecolumns":[]}},["rows",{},["tr",{"icon":"app:\/\/APP\/global\/0\/legacy\/26\/directory-icon.png","key":10,"depth":0,"ca":true,"open":false},
"Data"]],["visiblecolumns",{},["column",{"cid":"1","caption":"","fcaption":""}]
,["column",{"cid":"2","caption":"","fcaption":"","collapsed":true}]
,
["column",{"cid":"3","caption":"","fcaption":"","collapsed":true}]
,["column",{"cid":"4","caption":"","fcaption":"","collapsed":true}]
,
["column",{"cid":"5","caption":"","fcaption":"","collapsed":true}]
]]]], "state":{}, "types":{"103":"39"}, "hierarchy":{"103":[]}, "rpc" : []
, 
"meta" : {"async":true}, "resources" : {}, "timings":[2181, 6]
}]

I waited a few seconds and I done the same action and then request is sent but no response received !

INFO: Making UIDL Request with params: 83bdf227-6be0-4f1a-9511-ce97a30fcb08[["51","com.vaadin.shared.ui.button.ButtonServerRpc","click",
[{"type":"1", "button":"LEFT", "clientY":"253", "clientX":"63", "altKey":false, "relativeX":"63", "shiftKey":false, "metaKey":false, 
"relativeY":"46", "ctrlKey":false}]]] 0.js:205
Thu Sep 05 09:59:11 GMT+200 2013 com.vaadin.client.VConsole
INFO: Sending push message: 83bdf227-6be0-4f1a-9511-ce97a30fcb08[["51","com.vaadin.shared.ui.button.ButtonServerRpc","click",
[{"type":"1", "button":"LEFT", "clientY":"253", "clientX":"63", "altKey":false, "relativeX":"63", "shiftKey":false, "metaKey":false, 
"relativeY":"46", "ctrlKey":false}]]] 0.js:205
Thu Sep 05 10:01:31 GMT+200 2013 com.vaadin.client.VConsole
INFO: Sending heartbeat request... 0.js:205
Thu Sep 05 10:01:32 GMT+200 2013 com.vaadin.client.VConsole
INFO: Heartbeat response OK 0.js:205
Thu Sep 05 10:01:32 GMT+200 2013 com.vaadin.client.VConsole
INFO: Scheduling heartbeat in 300 seconds 0.js:205
Websocket closed, reason: Unknown: no status code was provided even though one was expected. vaadinPush.js:23
Websocket closed, wasClean: true vaadinPush.js:23
Thu Sep 05 10:02:55 GMT+200 2013 com.vaadin.client.VConsole
INFO: Push connection closed, awaiting reconnection 0.js:205
Thu Sep 05 10:03:01 GMT+200 2013 com.vaadin.client.VConsole
INFO: Reopening push connection

Node: I am using Vaadin with OSGi and to enable push I added a dependency in my app to atmosphere-runtime 1.0.12 and included vaadinPush.js in my app bundle (I had some troubles with vaadin-push bundle in OSGi).

Regards,
Mohammed.

4

Hi, you
need
 to use the Vaadin’s rebased and patched Atmosphere bundle, Vaadin won’t work reliably with vanilla Atmosphere (and certainly not with 1.0.12). 7.1.0 had a
bug
 in the vaadin-push manifest; you should upgrade to 7.1.1 or later.

The bundle required by Vaadin 7.1.1 and later is called com.vaadin.external.atmosphere.atmosphere-runtime, version 1.0.14.vaadin4.

5

Hi Johannes,

it seems that my problem was solved by adding transport = STREAMING to push annotation in my UI :

@Push(transport = Transport.STREAMING)

But still having the warning “Vaadin depends on Atmosphere 1.0.14.vaadin4 but version 1.0.12 was found.”. I’ll update to 1.0.14.vaadin4.

Thanks :-),
Mohammed.

6

Did updateing to 1.0.14 fix the issue? I have the same problem, and am going to put in the “transport = …” line to see if it helps.