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Problem |
The default JDBC® isolation level given to
servlets that connect to DB2® is not documented in "WebSphere® Application
Server V4.0.1 for z/OS® and OS/390®: Assembling J2EE Application."
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Solution |
Chapter 4 of WebSphere Application Server V4.0.1 for
z/OS and OS/390: Assembling J2EE Applications, SA22-7836-06 will be
updated, The note following the isolation level default value in the
section "Isolating transactions that access persistent data" will be
changed to the following:
Notes:
1. For beans assembled and deployed with the default descriptor value
TRANSACTION_NONE, WebSphere Application Server for z/OS uses the JDBC
isolation level TRANSACTION_REPEATABLE_READ on connections that the
Enterprise JavaBean™ (EJB) container acquires and uses to manage CMP
persistent state in DB2.
2. Servlets do not have a descriptor value for isolation levels.
Therefore, servlets that connect to DB2 will also get a default JDBC
isolation level of TRANSACTION_REPEATABLE_READ.
NOTE: Periodically, we refresh the documentation on our Web site, so these
changes might have been made before you read this text. To access the
latest on-line documentation, go to the product library page at URL:
http://www.ibm.com/software/webservers/appserv/zos_os390/library/ |
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