websphere集群环境配置oracle数据源Test Connection失败问题解决
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websphere 集群环境下配置oracle数据源,点击test connection按钮测试的时候报错:
java.sql.SQLException: ORA-01017: invalid username/password; logon denied DSRA0010E: SQL State = 72000, Error Code = 1,017. View JVM logs for further details;
经检查username/password是没错的,google后找到答案了:
The reason for it is that the "Test Connection" button you see on the admin console, invokes the JDBC connection test from within the address-space of the Node Agent. There is no way for the J2C Alias information to propagate to the Node Agent without restarting it; some configuration objects take effect in WebSphere as soon as you save the configuration to the master repository, and some only take effect on a restart. J2C aliases take effect on restarts.
In a Network Deployment topology, you may have 10 server instances all controlled by the same Node Agent. You may restart your server instances many times, but unless you restart the Node Agent itself, the "test connection" button will never work.
It's a known WebSphere limitation... Which also exists on version 7.0, so don't be surprised when you test it during your next migration. :-)
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