How can I take a thread dump of Xpert.ivy Server?

Reto Weiss — Tue, 03 Jun 2014 12:15:48 -0400

To analyze deadlocks in my code (and in Xpert.ivy) or endless loops it is useful to get a thread dump.

The thread dump contains information about each thread, the locks it owns, the locks it is waiting for and the whole java callstack of the thread. A thread dumps looks like this:

"http-8081-8" daemon prio=6 tid=0x000000001cd71000 nid=0x1124 in Object.wait() [0x000000001e24f000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00000004d208fae8> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:458)
    - locked <0x00000004d208fae8> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:484)
    at java.lang.Thread.run(Unknown Source)

"http-8081-7" daemon prio=6 tid=0x000000001cd70800 nid=0x1238 in Object.wait() [0x000000001e1cf000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00000004d2097900> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:458)
    - locked <0x00000004d2097900> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:484)
    at java.lang.Thread.run(Unknown Source)

Questions Tagged With debugging

How can I take a thread dump of Xpert.ivy Server?