> -----Original Message----- > From: Bill Davidson [mailto:bill...@gmail.com] > Sent: Tuesday, September 01, 2009 20:18 > To: 'Tomcat Users List' > Subject: Using multiple DataSource's for fail-over. > > Tomcat 6.0.20 using DBCP DataSource > Java 1.6.0_16 > Oracle 10g with RAC. > > I've got two Oracle RAC nodes, mirroring each other. My > current fail-over method if the primary node fails is to shut > down the web servers, reconfigure them to use the secondary > node and restart the web servers. Not pleasant. > > I'm thinking I can make a "FailOverDataSource" that > implements DataSource and wraps around DataSource's for each > of the two nodes. Its > getConnection() > method would try to use the getConnection() from the primary > node, and if that fails, it would try the secondary node. > Repeat logic for other DataSource methods. Instant automagic > fail-over. I've actually written it, and it seems to get a > hold of both DataSource's fine. I can't kill the primary on > an active busy system to do a "real" test though.
Try a software firewall like iptables (linux) or the windows firewall. This way you can simulate an in communication break, just like swithcing off the server. > > I'm thinking I can't be the first person to think of this. > Are there any obvious problems with this idea? > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
