In fact, this can theoretically be done with a reverse proxy, and using Wt's session prefix feature. Use a different prefix for old and new sessions, and forward requests accordingly. I've never done this.
BR, Wim. 2014-03-27 10:41 GMT+01:00 Koen Deforche <k...@emweb.be>: > Hey Jason, > > 2014-03-26 21:57 GMT+01:00 Jason H <scorp...@yahoo.com>: >> >> How would someone do an upgrade? It seems that we have to stop everything >> and start everything for a witty application? >> Or, could witty somehow maintain more than one application at a time, and >> when a newer one comes along, be messaged to use the new one for new >> connections? And as sessions are [re]started, move to the new while current >> sessions remain on the old implementation or are signaled to gracefully >> restart the session. Also how is session data handed off between upgrades? > > > Currently people are shutting down while upgrading; with a static page to > announce the upgrade (as Norbert suggests). > > The above functionality has been an idea we have had since long as something > that would be very nice to have, but it turns out that in practice everyone > seems happy without it. To implement the above we would need a reverse proxy > server that knows enough of Wt's session management to direct new sessions > to an upgraded server while old server instances continue to run the old > code until all of their sessions are done. A http reverse proxy is however > not a trivial implementation. > > Moreover, if you really want, you can get the above behaviour using Wt's > FastCGI dedicated process deployment as then for each new session a new > process is spawned. > > Regards, > koen > > ------------------------------------------------------------------------------ > > _______________________________________________ > witty-interest mailing list > witty-interest@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/witty-interest > ------------------------------------------------------------------------------ _______________________________________________ witty-interest mailing list witty-interest@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/witty-interest
