LIXA, LIbre XA, is a free and open source XA transaction manager
...The client/server architecture of LIXA allows many application containers to share a single LIXA (state) server: this is ideal when horizontal scalability is a must and many identical application containers must refer to a single transactional environment.
LIXA can be used with the C, C++, Java, Python and COBOL programming languages.
Kikonf is an Universal Administration Platform for MiddleWare Application Servers and related Servers. (Full Support for WebSphere Application Server, WebLogic Server, WebSphere MQ, Tomcat, JBoss, ...)
Photon provides very fast access to data containers (queues, maps, etc.) in shared memory - it can retrieve millions of data records per second. It also uses some RDB concepts like transactions and crash recovery. See web site for details.
We make it cheaper and easier to manage your waitlist, order backlog, and just about any other waiting scenario.
Streamline your customer flow with our SMS-powered waitlist, reservations, and queue management app for restaurants, health care providers, and many other businesses.