LAS server error

[=?big5?B?QW50b24gQ2hlbiBcKCCzr6XDqfogXCk=?= <anton@xxxxxxxxxxxxxxxxxxxxx>]

Hi Las users:

I have a problem in new installation of LAS6.1.
My system is Red Hat 7.2 and the LAS 5.2 worked well (http://dbar.as.ntu.edu.tw/las). However, there is somthing wrong for LAS6.1 installation. (in fact, I had posted the same question :LAS 6.0 "Session expired" problem on  20 Nov 2002 ). 

After configuration and statrting server, the result for running http://dbar.as.ntu.edu.tw:8080/las6.1/servlets/dataset is 

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Session expired

Your LAS session has expired. Please click here to start a new LAS session.
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And after I click the "click here",  the error message is :

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LAS server error
The following error occurred:

javax.servlet.ServletException: Server configuration denies access to data source
	at gov.noaa.pmel.tmap.SessionFilter.initDefaultContexts(SessionFilter.java:141)
	at gov.noaa.pmel.tmap.SessionFilter.checkSession(SessionFilter.java:242)
	at gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:271)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
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Root cause of servlet exception was:

java.sql.SQLException: Server configuration denies access to data source
	at org.gjt.mm.mysql.MysqlIO.init(MysqlIO.java:203)
	at org.gjt.mm.mysql.Connection.connectionInit(Connection.java:276)
	at org.gjt.mm.mysql.jdbc2.Connection.connectionInit(Connection.java:89)
	at org.gjt.mm.mysql.Driver.connect(Driver.java:167)
	at java.sql.DriverManager.getConnection(DriverManager.java:512)
	at java.sql.DriverManager.getConnection(DriverManager.java:193)
	at gov.noaa.pmel.tmap.ConnectionManager.getConnection(ConnectionManager.java:39)
	at gov.noaa.pmel.tmap.db.DbaseObject.doDeserializeAggregate(DbaseObject.java:228)
	at gov.noaa.pmel.tmap.db.DbaseObject.deserializeAggregate(DbaseObject.java:332)
	at gov.noaa.pmel.tmap.db.DbaseObject.deserializeAggregate(DbaseObject.java:353)

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java.sql.SQLException: Server configuration denies access to data source
	at org.gjt.mm.mysql.MysqlIO.init(MysqlIO.java:203)
	at org.gjt.mm.mysql.Connection.connectionInit(Connection.java:276)
	at org.gjt.mm.mysql.jdbc2.Connection.connectionInit(Connection.java:89)
	at org.gjt.mm.mysql.Driver.connect(Driver.java:167)
	at java.sql.DriverManager.getConnection(DriverManager.java:512)
	at java.sql.DriverManager.getConnection(DriverManager.java:193)
	at gov.noaa.pmel.tmap.ConnectionManager.getConnection(ConnectionManager.java:39)
	at gov.noaa.pmel.tmap.db.DbaseObject.doDeserializeAggregate(DbaseObject.java:228)
	at gov.noaa.pmel.tmap.db.DbaseObject.deserializeAggregate(DbaseObject.java:332)
	at gov.noaa.pmel.tmap.db.DbaseObject.deserializeAggregate(DbaseObject.java:353)
	at gov.noaa.pmel.tmap.db.DbaseObject.deserializeAggregate(DbaseObject.java:341)
	at gov.noaa.pmel.tmap.db.Config.getConfigs(Config.java:67)
	at gov.noaa.pmel.tmap.DatasetItem.getItems(DatasetItem.java:75)


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Any suggestion for the problem?  Thanks a lot. Any help will be appreciated.


Anton Chen