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https://issues.apache.org/jira/browse/SOLR-13290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erick Erickson updated SOLR-13290:
--
Priority: Major (was: Critical)
You should be able to switch the comments around in your log4j.xml files to go
back to using synchronous logging as a work-around while the async logging
settles out.
Assigning to myself to keep track of it, but anyone with more knowledge of the
Prometheus exporter please feel free. I suspect all that's necessary is to add
the classpath for "/core/lib/disruptor-3.4.2.jar" to "the right place".
> Prometheus metric exporter AsyncLogger: java.lang.NoClassDefFoundError
> --
>
> Key: SOLR-13290
> URL: https://issues.apache.org/jira/browse/SOLR-13290
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: metrics
>Affects Versions: 8.0, 8.1
>Reporter: Karl Stoney
>Assignee: Erick Erickson
>Priority: Major
>
> Since this
> commit:[https://github.com/apache/lucene-solr/commit/02eb9d34404b8fc7225ee7c5c867e194afae17a0]
> The metrics exporter in branch_8x no longer starts
> {code:java}
> 2019-03-04 16:06:01,070 main ERROR Unable to invoke factory method in class
> org.apache.logging.log4j.core.async.AsyncLoggerConfig for element
> AsyncLogger: java.lang.NoClassDefFoundError
> : com/lmax/disruptor/EventFactory 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
> org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:136)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:964)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:904)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:896)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:514)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:238)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:250)
> at
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:548)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:620)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:637)
> at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:231)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:153)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
> at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
> at
> org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:121)
> at
> org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:43)
> at
> org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:46)
> at
> org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
> at
> org.apache.solr.prometheus.exporter.SolrExporter.(SolrExporter.java:48)
> Caused by: java.lang.NoClassDefFoundError: com/lmax/disruptor/EventFactory
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.getAsyncLoggerConfigDelegate(AbstractConfiguration.java:203)
> at
> org.apache.logging.log4j.core.async.AsyncLoggerConfig.(AsyncLoggerConfig.java:91)
> at
> org.apache.logging.log4j.core.async.AsyncLoggerConfig.createLogger(AsyncLoggerConfig.java:273)
> ... 25 more
> Caused by: java.lang.ClassNotFoundException: com.lmax.disruptor.EventFactory
> at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> ... 28 more{code}
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