https://bz.apache.org/bugzilla/show_bug.cgi?id=64680
Bug ID: 64680
Summary: Jmeter failed to start with the Prometheus JMX agent
when run not from $JMETER_HOME/bin
Product: JMeter
Version: 5.1.1
Hardware: PC
OS: Linux
Status: NEW
Severity: major
Priority: P2
Component: Main
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: JMETER_5.3.1
Trying configure Prometheus JMX agent for Jmeter but faced following issue -
when I start Jmeter outside of $JMETER_HOME/bin folder - it fails with an
error:
java.lang.Throwable: Could not access null/lib
at org.apache.jmeter.NewDriver.<clinit>(NewDriver.java:105)
java.lang.Throwable: Could not access null/lib/ext
at org.apache.jmeter.NewDriver.<clinit>(NewDriver.java:105)
java.lang.Throwable: Could not access null/lib/junit
at org.apache.jmeter.NewDriver.<clinit>(NewDriver.java:105)
java.lang.ClassNotFoundException: org.apache.jmeter.JMeter
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at org.apache.jmeter.NewDriver.main(NewDriver.java:250)
JMeter home directory was detected as: null
null- is because I run from / , and JMeter is set to parent dir
Launch command:
java -Dcom.sun.management.jmxremote.port=12021
-Dcom.sun.management.jmxremote.rmi.port=12021
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false -Dgroovy.use.classvalue=true
-javaagent:/apps/injector/apache-jmeter/bin/jmx_prometheus_javaagent-0.13.0.jar=8778:/apps/injector/apache-jmeter/bin/prometheus_config.yaml
-jar /apps/injector/apache-jmeter/bin/ApacheJMeter.jar -n -t
/apps/injector/apache-jmeter/extras/Test.jmx
Same command works fine in case I run it from $JMETER_HOME/bin folder.
Running a Jmeter with -javaagent option defined - set JMeter home directory as
a parent dir for the dir I trying to run from.
JMETER_HOME env var is defined and both JMETER_HOME and JMETER_HOME/bin added
to PATH. And I can run Jmeter with the above command from any path when
removing -javaagent option from the original command.
Tried also -d/--homedir Jmeter options - but this didn't help.
How can I make Jmeter to be compatible with Prometheus agent and to be run from
any path?
p.s. tried on both Linux/Win.
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