Sorry to keep adding to this, but I thought I should add the log of
the connect/disconnect problem:

2011-07-04 03:57:44.424 /_ah/channel/disconnected/ 200 237ms 38cpu_ms
0kb
I 2011-07-04 03:57:44.421
com.firstlightapps.MyApp.ChannelDisconnectedServlet doPost: client
DISCONNECTED from channel: log

2011-07-04 03:57:02.188 /_ah/channel/connected/ 200 12ms 0cpu_ms 0kb
I 2011-07-04 03:57:02.185
com.firstlightapps.MyApp.ChannelConnectedServlet doPost: client ID
'log' connected to channel

You can see that it immediately disconnects.  Any way I can get more
info on why it is disconnecting immediately?  Is it because I'm using
a ClientID that is already associated with a channel?

On Jul 4, 1:11 am, ksafez216 <[email protected]> wrote:
> So, the Channel Presence feature actually notifies when a channel is
> connected/disconnected as opposted to created/destroyed?
>
> If this is correct, then how can I find out when the channel that was
> created on the server-side has been closed and not simply
> disconnected?
>
> I guess I'm confused about creating vs. connecting and destroying vs.
> disconnecting
>
> Here's what I'm doing:
>
> * Client requests a token using "client ID"
> * If "client ID" already has a token (this info is saved in the
> datastore when the channel is created server-side) THEN send the
> client the token, and call channel.open(token) on client-side
> * If "client ID" doesn't have a token (meaning the info doesn't exist
> in the datastore), then create a new channel and send client the
> token, which in turn calls channel.open(token)
> * When Channel Presence detects a disconnect, delete the info stored
> in the datastore (this is maybe where I've gone wrong, since the
> channel is not destroyed, but simply disconnected)
>
> Thank you for your help.
>
> On Jul 3, 11:24 pm, "Nick Johnson (Google)" <[email protected]>
> wrote:
>
>
>
> > Hi,
>
> > On Mon, Jul 4, 2011 at 3:49 PM, ksafez216 <[email protected]> wrote:
> > > When I call channel.open([token])  it opens a new channel and the
> > > Channel Presence feature detects this.
>
> > > Then, the client's browser is shut down for a few minutes and is
> > > restarted.
>
> > > My app checks to see if they still have a valid token.  If so, the
> > > client calls channel.open([token]), using the same token.
>
> > > Again, the Channel Presence listener detects that a channel was
> > > connected.
>
> > > Now, am I charged for two channels being open, even though it's using
> > > the same client ID and token?
>
> > Every time you call channel.create on the server, a new channel is created,
> > and a new token is returned. Billing only happens for server-side actions.
>
> > -Nick Johnson
>
> > > The thing is I don't get a channel disconnected notification, I only
> > > get the two channel connected notifications.
>
> > > I'm just trying to figure out exactly what happens when I call
> > > channel.open([token]) in the client TWICE using the same token.  How
> > > am I charged?
>
> > > --
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>
> > --
> > Nick Johnson, Developer Programs Engineer, App Engine

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