Hi.

After upgrading a two-node failover cluster with RHEL4 from U3 to U4, we
have suddenly started experiencing big issues with Tomcat. The service
either crashes suddenly with error 6 or 11, or immediately with a
NoClassDefFoundError:

---8<---
*** glibc detected *** double free or corruption (fasttop): 0xb32bdaf8 ***
JVMDG217: Dump Handler is Processing Signal 6 - Please Wait.
JVMDG303: JVM Requesting Java core file
JVMDG304: Java core file written to /tmp/javacore.20060920.164526.15463.txt
JVMDG215: Dump Handler has Processed Error Signal 6.
---8<---

or
---8<---
JVMDG217: Dump Handler is Processing Signal 11 - Please Wait.
JVMDG303: JVM Requesting Java core file
JVMDG304: Java core file written to /tmp/javacore.20060920.182526.12831.txt
JVMDG215: Dump Handler has Processed Exception Signal 11.
---8<---

or as of now (service won't start at all)
---8<---
Created MBeanServer with ID:
12f3205:10de3f10835:-8000:servername.example.com:1
java.lang.NoClassDefFoundError: org/apache/commons/digester/Digester
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:1747)
        at java.lang.Class.getConstructor1(Class.java:2063)
        at java.lang.Class.newInstance3(Class.java:331)
        at java.lang.Class.newInstance(Class.java:305)
        at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:208)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:402)
---8<---

Does anyone have any suggestions to what might be the problem?

I appreciate your feedback.

Thanks,
.../Bosse

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