[NUTCH-2473] Elasticsearch REST Indexer broken due to wrong depenency

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.14
• Fix Version/s: 1.14
• Flags: Important
• Assignee: Sebastian Nagel
• Reporter: Moreno Feltscher
• Created: 07/Dec/17 12:19
• Updated: 13/Mar/24 14:50
• Resolved: 13/Dec/17 21:31

Description

When trying to index into Elasticsearch using indexer-elastic-rest the following error is being thrown:

Exception in thread "main" java.lang.LinkageError: loader constraint violation: when resolving method "org.slf4j.impl.StaticLoggerBinder.getLoggerFactory()Lorg/slf4j/ILoggerFactory;" the class loader (instance of org/apache/nutch/plugin/PluginClassLoader) of the current class, org/slf4j/LoggerFactory, and the class loader (instance of sun/misc/Launcher$AppClassLoader) for the method's defining class, org/slf4j/impl/StaticLoggerBinder, have different Class objects for the type org/slf4j/ILoggerFactory used in the signature
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:418)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
    at org.apache.nutch.indexwriter.elasticrest.ElasticRestIndexWriter.<clinit>(ElasticRestIndexWriter.java:71)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at java.lang.Class.newInstance(Class.java:442)
    at org.apache.nutch.plugin.Extension.getExtensionInstance(Extension.java:161)
    at org.apache.nutch.indexer.IndexWriters.<init>(IndexWriters.java:57)
    at org.apache.nutch.indexer.IndexingJob.index(IndexingJob.java:123)
    at org.apache.nutch.indexer.IndexingJob.run(IndexingJob.java:230)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.nutch.indexer.IndexingJob.main(IndexingJob.java:239)

e66d44d removed the runtime dependency on slf4j-api-1.7.21.jar everywhere but in indexer-elastic-rest.
Possible fix: https://github.com/apache/nutch/pull/253

Issue Links

• links to: GitHub Pull Request #253