Data sources definitions are lost in memory

[Robert Anderson]

Hi,


We've some data sources defined in server.xml as following:

...
 <GlobalNamingResources>
  ...
          <Resource name="jdbc/proddb1" auth="Container"
type="javax.sql.DataSource" removeAbandoned="true"
removeAbandonedTimeout="300"
                                   maxActive="400" maxIdle="30"
maxWait="10000"
                                   validationQuery="select 1 from dual"
                                   testOnBorrow="true"
                                   username="xxxx" password="xxxx"
driverClassName="com.intersys.jdbc.CacheDriver"
                                   url="jdbc:Cache://server:1972/DB"/>
...

 </GlobalNamingResources>
 ...

conf/context.xml

<Context>
    ...
        <ResourceLink name="jdbc/proddb1" global="jdbc/proddb1"/>
    ...
</Context>


Everything has worked normal during many months...until now.

At least once a day, since 11/21, webapplications  throw
NullPointerException because they cannot find jndi data sources. The Data
sources tab in psi-probe (http://code.google.com/p/psi-probe/) says that
there aren't jndi data sources in server.  We are thinking that some
application may have added some jar or class in classpath that is causing
the problem.

After restart, without changes in conf files,  everything backs to normal.

Any idea?

Environment:

java version "1.6.0_35"
Java(TM) SE Runtime Environment (build 1.6.0_35-b10)
Java HotSpot(TM) 64-Bit Server VM (build 20.10-b01, mixed mode)

Server version: Apache Tomcat/6.0.32
Server built:   February 2 2011 2003
Server number:  6.0.32.0
OS Name:        Linux
OS Version:     2.6.18-194.17.1.el5
Architecture:   amd64
JVM Version:    1.6.0_35-b10
JVM Vendor:     Sun Microsystems Inc.


Thanks in advance,

Robert