Oracle International Corporation

Saravanakumar Ramasubramanian

Kant C Patel

Feroz Alam Khan

Bhaskar Mathur

Wei-Ming Hu

Mark Dilman

Kevin S Neel

Leonid Novak

Hubert Ken Sun

Michael James Stewart

Lakshminaray Chidambaran

Srinivas Pamu

Abhishek Dadhich

Techniques are provided to allow users to define a global service that is offered across multiple replicated databases. Database clients connect to and use a global service just as they do with regular services on a single database today. Upon receiving a connection request, a collection of components, referred to collectively as the Global Data Service framework (GDS framework), automatically chooses the best database server instances to which to connect a client. Once those connections have been established, the clients determine which database server instance, of those database server instances to which they are connected, to send requests to based, at least in part, on advisory messages sent to the clients by the GDS framework.

Providing services across systems that manage distributed replicas

The techniques are provided automatically detecting when performing pre-transmission compression on data to be sent over a network connection will be preferable to sending the data uncompressed, and for automatically performing pre-transmission compression only when doing so is determined to be beneficial. The techniques involve performing compression on sample data. The time it takes to perform the compression on the sample data, along with the reduction in size achieved by the compression, are factors used to automatically determine whether compressing data before sending the data over a network connection will achieve better results that sending the data uncompressed. In some embodiments, multiple compression algorithm/compression level combinations are tested at different points in the transmission. At each point, the sending device may switch to the algorithm/level combination that is producing the best results on the current sample.

Mechanism for automatic network data compression on a network connection

Growing community of inventors

Bengaluru, India

Saravanakumar Ramasubramanian