The following notes are from the WebSphere® Application
Server v3.5 Information Center; however, the information is applicable to
v4.0 releases also.
6.6.14.11: Recovering from data source configuration problems using the
XAResources file
When a WebSphere application server starts, the product stores information
about any JTA-enabled data sources used by the server. This information is
needed to recover from server failures. The information is kept in the
following file:
Install_Root /properties/application_server_nameXAResources
Every time the server starts up, the server runtime examines this file and
attempts any needed recovery on the resources described in it. In the
event that a JTA-enabled DataSource is configured incorrectly, you might
see server startup failures or warning messages due to the
incorrectly-configured resources. For example, you might see the following
warning message:
WTRN0025W: Can not create XAResource object
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