1483794 - Weblogic server hangs due to locked threads

• Periodically, Weblogic 10 stops responding to end user requests and must be restarted

• When logging on to InfoView the logon hangs and is never displayed

• Thread dumps taken at the time of the outage shows many instances of the locked thread shown below

Business Objects - Sessions Clean up" daemon prio=10 tid=0x08204c00 nid=0x2422 in Object.wait() [0x8affa000]

java.lang.Thread.State: WAITING (on object monitor)

at java.lang.Object.wait(Native Method)

- waiting on <0xb4be3a88> (a java.util.HashMap)

at java.lang.Object.wait(Object.java:485)

at java.net.InetAddress.checkLookupTable(InetAddress.java:1266)

- locked <0xb4be3a88> (a java.util.HashMap)

at java.net.InetAddress.getAddressFromNameService(InetAddress.java:1189)

at java.net.InetAddress.getAllByName0(InetAddress.java:1153)

at java.net.InetAddress.getAllByName(InetAddress.java:1083)

at java.net.InetAddress.getAllByName(InetAddress.java:1019)

• Sun Java JDK 1.6

• Weblogic Application Server

locked, hung, not responsive, domain name system, Info View, logon , KBA , BI-BIP-DEP , Webapp Deployment, Networking, Vulnerabilities, Webservices , Problem