Solr 4 Data Import Handler doesn't work

StackOverflow https://stackoverflow.com/questions/17305917

  •  01-06-2022
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Question

I am deploying Solr 4.3.0 in Tomcat 7. Everything works fine but DataImportHandler. I can go to the 

http://localhost:8080/solr/#/collection1/dataimport//dataimport

screen and see the dataimport options load at the UI.

Still, I can see any of my entities load in the "entity" combo box. Inside the configuration box, at the right side I can see the error below.

Apache Tomcat/7.0.41 - Error report

525D76;}--> HTTP Status 500 - Filter execution threw an exception

noshade="noshade">

type Exception report

message Filter execution threw an exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception 

javax.servlet.ServletException: Filter execution threw an
exception

root cause 

java.lang.NoClassDefFoundError: org/apache/log4j/spi/LoggingEvent
  org.apache.solr.logging.log4j.EventAppender.append(EventAppender.java:35)
  org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  org.apache.log4j.Category.callAppenders(Category.java:206)
  org.apache.log4j.Category.forcedLog(Category.java:391)
  org.apache.log4j.Category.log(Category.java:856)
  org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:498)
  org.apache.solr.common.SolrException.log(SolrException.java:119)
  org.apache.solr.servlet.ResponseUtils.getErrorInfo(ResponseUtils.java:58)
  org.apache.solr.servlet.SolrDispatchFilter.sendError(SolrDispatchFilter.java:691)
  org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:380)
  org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:155)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.41 logs.

Apache Tomcat/7.0.41

Problem is that I have the "log4j-1.2.16.jar" loaded in the classpath (it's on Tomcat lib dir).

Anyone have stepped in this problem?

Was it helpful?

Solution

Try following the steps outlined in Using the example logging setup in containers other than Jetty. I have encountered this same error when running Solr 4.3 until I followed these steps to configure logging.

OTHER TIPS

After changing the directory, did you change the directory path in solrconfig.xml file.

I just want to make sure after the making changes in configuration file, did you restart the tomcat and solr server?

You need to copy the slf4j-log4j12-1.6.6.jar from the ext of Solr into the lib folder.

You also need to put the logging.properties file there.

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