A tool that analyzes problems in JDBC on WebSphere Application Server connection pools.
Posting date: June 6, 2008
Updated: 8 October 2010
Version 2.3 supports transactions analysis
This tool uses a heuristic analysis engine to help you resolve issues related to the pools of JDBC (Java ™ Database Connectivity) connections and to find leaks of JDBC connection.
JDBC driver is used by applications written in Java to define how a client accesses the database resources. JDBC connection pooling can improve time response for a given application, requiring connections, including Web-based applications. For example, when a user makes a request to a resource on the Web, the resource accesses a data source. Total data store overload rises quickly when it is used in applications on the Web, resulting in a deterioration in performance. However, when using connection pooling features Web applications are less affected. Performance improvements of up to 20 times can be made.
With connection pooling, most user applications will undertake no overhead of creating a new connection because the data source can locate and use an existing connection in the connection pool. When the request is satisfied, and the response is returned to the user resource returns the connection pool connection for reuse. Cut overheads are avoided. Each user request commits a fraction of the cost of the connection or disconnection. After the initial resources are used to produce the additional pool connections is negligible because existing connections are reused.
For example, if a JDBC connection pool is deployed incorrectly and JDBC connections are not released after use, applications can suffer crashes, deprivation of resources and other connectivity problems. IBM WebSphere ® Application Server database connection pool Analyzer allows you to analyze the JDBC connection pool leaks and resolve JDBC pool connection problems especially when you use WebSphere Application Server.
The tool analyzes traces of JDBC connection pool manager and provides the following features:
The tool performs the following:
Jinwoo Hwang is a software engineer, team leader and a technical team of technical support for WebSphere Application Server, which is based in Research Triangle Park, N.C. leader He joined IBM in 1995 and has worked with IBM Global Services learning, IBM Consulting Services and development prior to his current position. Mr. Hwang is an IBM Certified Solution Developer as well as a SUN Certified Programmer for the Java 2 platform. He is the architect and developer of the following tools:
Mr. Hwang is also the author of C programming for novices (Yonam Press, 1995), as well as numerous articles technology aggregated on his personal website: http://jinwoohwang.sys-con.com/.
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