signalr - OnDisconnect and Logged on Users after recycle? -

i've read ondisconnect ( server side) , can bypassed ( application recycle etc).

the ondisconnected method doesn't called in scenarios, such when server goes down or app domain gets recycled.

and ask :

when user connects , generate him token , keep in user cookie , , when onconnect called , attach connectionid token.

(the same way ondiconnect called , set value in datedisconnected)

this supports 2 connected users ( same browser)

example :

example :

id         tokenid              connectionid         datecreated            datedisconnected ---------------------------------------------------------------------------------------------- 1          500                    {1234-1234}          06-07-2013               null              2          500                    {5432-5432}          06-07-2013               null              

and here problem :

what happen if user has logged in (so write user in db logged in) , chat , , server restarted ?

the client try reconnect , after 30 seconds stop.

but then , when server (after hour ) - still have logged on user in db. , not. ( , not connection id anyway...)

how can solve kind of problem ?

the best way solve problem log out on application start, aka in case invalidate/delete logged in token rows. therefore whenever server comes application in fresh state no 1 logged in.