Hello Carsten,
the behavior seems to be somehow different. After disconnecting one renderer
the commuinication with the remaining renderes seems to work for 6 additional
frames. After the 7th sync, the client stucks in the swap wait call.
Best regards,
Michael
-------- Original-Nachricht --------
> Datum: Fri, 09 Sep 2011 17:13:57 +0200
> Von: Michael Raab <michael-r...@gmx.de>
> An: opensg-users@lists.sourceforge.net
> Betreff: Re: [Opensg-users] OpenSG1.8 - Disconnecting
> ClusterWindow and ClusterServer
> Am 09.09.2011 16:12, schrieb Carsten Neumann:
> > Hello Michael,
> >
> > On 09/09/2011 04:31 AM, Michael Raab wrote:
> >> the current approach in general seems to work well with StreamSock
> connection between client and servers.
> >> The difficulties seem to appear when using Multicast. I was able to fix
> the problem of the server shutdown when trying to close the (Mcast)
> connection. The patch is attached, please have a look. Thanks.
> > thanks for the patch. So the recvQueue() thread blocked in
> recvNextDgram()?
>
> Yes!
>
> >
> >> So for now the server side seems to connect, run and close stable, but
> I still have a deadlock on client side after disconnecting a single server.
> >>
> >> This is what I'm doing in the client:
> > [SNIP - code]
> >
> > that looks reasonable to me.
>
> OK.
>
> >
> >> I'm disconnecting all unnecessary render channels after syncing all
> changes to the servers. Then the frame becomes rendered. After that I try to
> swap in sync with the servers but the connection waits forever for the
> server signals. I have looked at the code for a long time but I have no clue
> why
> it should. May be it waits for the disconnected server...
> >> This is the stack were all gets stuck:
> >>
> >> ntdll.dll!76f4f8c1()
> >> [Unten angegebene Rahmen sind möglicherweise nicht korrekt
> und/oder fehlen, keine Symbole geladen für ntdll.dll]
> >> ntdll.dll!76f4f8c1()
> >> mswsock.dll!74506f0f()
> >> mswsock.dll!74506d30()
> >> ntdll.dll!76f63ca3()
> >> OSGSystem.dll!osg::DrawActionBase::stop(osg::Action::ResultE
> res=Continue) Zeile 259 C++
> >> msvcp80.dll!std::basic_filebuf<char,std::char_traits<char>
> >::overflow(int _Meta=64) Zeile 304 + 0x5 Bytes C++
> >> ws2_32.dll!74c76a28()
> >> OSGBase.dll!osg::SocketSelection::select(double
> duration=-1.0000000000000000) Zeile 236 C++
> >> OSGBase.dll!osg::SocketSelection::select(double
> duration=-1.0000000000000000, osg::SocketSelection& result={...}) Zeile
> 265 + 0x2d
> Bytes C++
> >> OSGBase.dll!osg::GroupSockConnection::wait(double
> timeout=-1.0000000000000000) Zeile 336 + 0x15 Bytes C++
> >>> OSGBase.dll!osg::GroupMCastConnection::wait(double
> timeout=-1.0000000000000000) Zeile 205 C++
> >> OSGExt.dll!osg::VDTMultiDisplayWindow::clientSwap() Zeile 546
> >> C++
> >>
> >> OSGExt.dll!osg::VDTMultiDisplayWindow::render(osg::RenderActionBase
> * action=0x0c6b7958) Zeile 303 C++
> >>
> >> I don't know how the DrawAction stuff comes into the stack, maybe its a
> visualization bug in VS...
> > yeah, that looks bogus ;)
> > Hmm, the interesting information would be, which sockets are in the
> > SocketSelection and if a disconnected server is still in there what and
> > why it was placed there?
>
> As far as I have seen today the correct sockets were closed and removed
> from the socket list.
>
> >
> > Cheers,
> > Carsten
> >
> >
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