Hi, folks. We are first-time users of collectd, trying to write a Java plugin
to collect some data. So far we can't seem to get the Java plugin to find our
classes; we get this error:
java plugin: cjni_config_load_plugin: FindClass
(com/coraid/cms/pe/HBAMetrics) failed.
java plugin: Configuration block for `HBAMetrics' found, but no such
configuration callback has been registered. Please make sure, the `LoadPlugin'
lines precede the `Plugin' blocks.
We have tried many things to get around this, but nothing works. What are we
missing? Presumably the above means that the Java plugin cannot find our class
on the classpath specified in java.class.path, but we think we've set it up
correctly. Our config block for the plugin looks like this:
<Plugin "java">
JVMArg "-verbose:jni"
JVMArg
"-Djava.class.path=/opt/collectd/share/collectd/java/coraid-plugin.jar:/opt/collectd/share/collectd/java/collectd-api.jar"
LoadPlugin "com/coraid/cms/pe/HBAMetrics"
<Plugin "HBAMetrics">
</Plugin>
</Plugin>
Here's the JAR file:
# pwd
/opt/collectd/share/collectd/java
# ls
collectd-api.jar coraid-plugin.jar generic-jmx.jar
# jar tf coraid-plugin.jar
META-INF/
META-INF/MANIFEST.MF
com/
com/coraid/
com/coraid/cms/
com/coraid/cms/pe/
com/coraid/cms/pe/MetricData.class
com/coraid/cms/pe/HBAMetrics.class
And here is the HBAMetrics class:
# jar xf coraid-plugin.jar com/coraid/cms/pe/HBAMetrics
# javap com.coraid.cms.pe.HBAMetrics
Compiled from "HBAMetrics.java"
public class com.coraid.cms.pe.HBAMetrics implements
org.collectd.api.CollectdConfigInterface,org.collectd.api.CollectdInitInterface,org.collectd.api.CollectdReadInterface,org.collectd.api.CollectdShutdownInterface
{
public static final java.lang.String PLUGIN_NAME;
public com.coraid.cms.pe.HBAMetrics();
public int config(org.collectd.api.OConfigItem);
public int init();
public int read();
public int shutdown();
}
Thanks for any help with this urgent (for us) problem.
Nicholas
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