question

jose r. avatar image
jose r. asked ·

error starting dtagent

Hello all,

when trying to start the weblogic jvm with the appmon agent I get this error.

2019-10-08 18:16:48 [00000002] info [native] Average transformation time for 1333 classes/modules was 0ms - maximum set to 60ms

[jfr][ERROR][0,989] Redefine class failed with 71

Error when initializing JFR. JFR will be deactivated.

java.lang.Exception: Could not instrument Throwable!

at oracle.jrockit.jfr.VMJFR.instrument(VMJFR.java:410)

at oracle.jrockit.jfr.JFR.init(JFR.java:109)

Error occurred during initialization of VM

Failed to start tracing backend.



How can I eliminate this error and start the weblogic?


thanks in advanced.

jose A

agentwebserver
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1 Answer

Joe H. avatar image
Joe H. answered ·

Did you try turning off JFR and trying again? Basically JFR and AppMon are both trying to instrument your JVM and there appears to be a conflict.

What version of AppMon are you using?

As a last resort, you could tell Dynatrace to ignore the class(es) that's having trouble.

Let's first start with the above steps and go from there.

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turning off JFR works !!

thank you

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