Pivotal Software, Inc.

Mqquis Techtrix LLC

Lawrence Hamel

Ivan Donald Novick

Oz Basarir

Goutam Tadi

Methods, systems, and computer programs encoded on computer storage media, for implementing MPP relational databases using containers. One example system initiates primary containers to implement database segment instances. Each segment of the database is stored on a respective storage volume. Each storage volume is mounted on a respective primary container. The system detects a failure of a first primary container that is a segment instance of a first database segment. In response to the detection, the system performs a recovery process. The system unmounts, from the failed first primary container, a first storage volume storing the first database segment. The system selects a standby container from a pool of standby containers and mounts the first storage volume on the selected standby container. The system is reconfigured so that it processes queries for the first database segment using the selected standby container instead of the failed first container.

Database segment load balancer

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for allocating a number of first containers to implement one primary segment instance each and a number of second containers to implement one mirror segment instance each. In one example system, the second containers are configured to have less computing resources than the first containers. The containers are distributed among a number of physical computers. The system receives an indication of a failure of a physical computer hosting a particular first container implementing a first primary segment instance. In response to receiving the indication, the system promotes a second mirror segment instance that is a mirror of the first primary segment instance to be a new primary segment instance. The system allocates additional resources to the particular second container implementing the promoted mirror segment instance.

Light-weight mirror container

An improved proxy is disclosed for allowing click-through on an ad URL delivered on a web page within a Java&#xae; applet executing on a client machine. The proxy caches cookie information for the browser, to support java applications that do not allow for planting of cookies directly. When the user clicks on the ad URL, the proxy retrieves the relevant cookie and link information from a host side database, and uses the same to help the browser open the correct URL associated with the ad. The proxy acts to extend the reach and access of a conventional applet beyond the resources of a download host associated with such applet.

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Menlo Park, CA, United States of America

Lawrence Hamel