I had the same problem and found a solution at

http://www.minaret.biz/tips/tomcatLogging.html#velocity

–Davide Principi

I was able to get the example working but when trying to deploy under Tomcat 5.5 I appear to be having problems with permissions on creation of “velocity.log”. As far as I can see, all possible locations where the file might be created are writable by the tomcat user and when the test example is run, it doesn’t appear to ever create a “velocity.log” file anywhere.

Any pointers/ideas on how this might be resolved?

REGARDS

INFO: Server startup in 7100 ms
Nov 23, 2009 12:05:21 AM org.apache.solr.request.UnInvertedField uninvert
INFO: UnInverted multi-valued field {field=category,memSize=4224,tindexSize=32,time=7,phase1=7,nTerms=0,bigTerms=0,termInstances=0,uses=0}
Nov 23, 2009 12:05:21 AM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/itas params={} hits=19631 status=0 QTime=76
Nov 23, 2009 12:05:21 AM org.apache.solr.common.SolrException log
SEVERE: java.lang.RuntimeException: org.apache.velocity.exception.VelocityException: Failed to initialize an instance of org.apache.velocity.runtime.log.Log4JLogChute with the current runtime configuration.
at org.apache.solr.request.VelocityResponseWriter.getEngine(VelocityResponseWriter.java:148)
at org.apache.solr.request.VelocityResponseWriter.write(VelocityResponseWriter.java:44)
at org.apache.solr.servlet.SolrDispatchFilter.writeResponse(SolrDispatchFilter.java:325)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:254)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.velocity.exception.VelocityException: Failed to initialize an instance of org.apache.velocity.runtime.log.Log4JLogChute with the current runtime configuration.
at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:206)
at org.apache.velocity.runtime.log.LogManager.updateLog(LogManager.java:255)
at org.apache.velocity.runtime.RuntimeInstance.initializeLog(RuntimeInstance.java:795)
at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:250)
at org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:107)
at org.apache.solr.request.VelocityResponseWriter.getEngine(VelocityResponseWriter.java:133)
… 17 more
Caused by: java.lang.RuntimeException: Error configuring Log4JLogChute :
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at org.apache.velocity.util.ExceptionUtils.createWithCause(ExceptionUtils.java:67)
at org.apache.velocity.util.ExceptionUtils.createRuntimeException(ExceptionUtils.java:45)
at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:133)
at org.apache.velocity.runtime.log.Log4JLogChute.init(Log4JLogChute.java:85)
at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:157)
… 22 more
Caused by: java.io.FileNotFoundException: velocity.log (Permission denied)
at java.io.FileOutputStream.openAppend(Native Method)
at java.io.FileOutputStream.(FileOutputStream.java:177)
at java.io.FileOutputStream.(FileOutputStream.java:102)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:289)
at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:167)
at org.apache.log4j.FileAppender.(FileAppender.java:108)
at org.apache.log4j.RollingFileAppender.(RollingFileAppender.java:69)
at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:118)
… 24 more