Kafka | Cassandra: jmx exporter throwing same error

[AK]

Hi All,

I'm trying to run jmx-exporter for Kafka and Cassandra but facing exact same problem with both as below:

java -javaagent:/home/username/jmx_prometheus_javaagent-0.15.0.jar=8080:/home/username/kafka-0-8-2.yml

Exception in thread "main" java.lang.reflect.InvocationTargetException

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

        at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:386)

        at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:401)

Caused by: mapping values are not allowed here

 in 'reader', line 104, column 65:

     ... e" content="{"version": "4", "rollouts& ...

                                         ^

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:870)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:358)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.scanner.ScannerImpl.peekToken(ScannerImpl.java:250)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentEnd.produce(ParserImpl.java:253)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:168)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:87)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:108)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:139)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:524)

        at io.prometheus.jmx.shaded.org.yaml.snakeyaml.Yaml.load(Yaml.java:467)

        at io.prometheus.jmx.shaded.io.prometheus.jmx.JmxCollector.<init>(JmxCollector.java:78)

        at io.prometheus.jmx.shaded.io.prometheus.jmx.JavaAgent.premain(JavaAgent.java:29)

        ... 6 more

FATAL ERROR in native method: processing of -javaagent failed

Aborted (core dumped)

[AK]

Please ignore this as yaml files were downloaded with wget git_uri were having lot of unwanted values. Downloaded the raw files and this was resolved.

[Ian Billett]

Glad you figured out the problem, and thank you for letting us know the fix!

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