Thanks, but as soon as it is changed to anything higher (I've tried 4.7, 4.8, 4.9, and 4.10.1) then compilation errors result. For example, using 4.10.1 (LUCENE_4_10_1) the following errors are observed (these are different depending upon which version is used):
[ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[29,31] cannot find symbol symbol: class BufferedIndexOutput location: package org.apache.lucene.store [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[305,47] cannot find symbol symbol: class BufferedIndexOutput location: class org.apache.mahout.text.ReadOnlyFileSystemDirectory [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[163,12] incompatible types required: org.apache.lucene.store.IndexOutput found: org.apache.mahout.text.ReadOnlyFileSystemDirectory.FileSystemIndexOutput [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[178,23] <anonymous org.apache.mahout.text.ReadOnlyFileSystemDirectory$1> is not abstract and does not override abstract method close() in org.apache.lucene.store.Lock [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[319,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[327,14] abstract method close() in org.apache.lucene.store.Directory cannot be accessed directly [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[324,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[335,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[340,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[345,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/LuceneSegmentRecordReader.java:[67,20] method scorer in class org.apache.lucene.search.Weight cannot be applied to given types; required: org.apache.lucene.index.AtomicReaderContext,org.apache.lucene.util.Bits found: org.apache.lucene.index.AtomicReaderContext,boolean,boolean,<nulltype> reason: actual and formal argument lists differ in length [INFO] 11 errors [INFO] ------------------------------------------------------------- [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] Mahout Build Tools ................................ SUCCESS [ 1.808 s] [INFO] Apache Mahout ..................................... SUCCESS [ 0.437 s] [INFO] Mahout Math ....................................... SUCCESS [ 11.337 s] [INFO] Mahout MapReduce Legacy ........................... SUCCESS [ 15.163 s] [INFO] Mahout Integration ................................ FAILURE [ 1.416 s] [INFO] Mahout Examples ................................... SKIPPED [INFO] Mahout Release Package ............................ SKIPPED [INFO] Mahout Math/Scala wrappers ........................ SKIPPED [INFO] Mahout Spark bindings ............................. SKIPPED [INFO] Mahout Spark bindings shell ....................... SKIPPED [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 30.612 s [INFO] Finished at: 2014-10-30T06:10:11-08:00 [INFO] Final Memory: 52M/411M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project mahout-integration: Compilation failure: Compilation failure: [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[29,31] cannot find symbol [ERROR] symbol: class BufferedIndexOutput [ERROR] location: package org.apache.lucene.store [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[305,47] cannot find symbol [ERROR] symbol: class BufferedIndexOutput [ERROR] location: class org.apache.mahout.text.ReadOnlyFileSystemDirectory [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[163,12] incompatible types [ERROR] required: org.apache.lucene.store.IndexOutput [ERROR] found: org.apache.mahout.text.ReadOnlyFileSystemDirectory.FileSystemIndexOutput [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[178,23] <anonymous org.apache.mahout.text.ReadOnlyFileSystemDirectory$1> is not abstract and does not override abstract method close() in org.apache.lucene.store.Lock [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[319,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[327,14] abstract method close() in org.apache.lucene.store.Directory cannot be accessed directly [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[324,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[335,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[340,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/ReadOnlyFileSystemDirectory.java:[345,5] method does not override or implement a method from a supertype [ERROR] /mahout/trunk/integration/src/main/java/org/apache/mahout/text/LuceneSegmentRecordReader.java:[67,20] method scorer in class org.apache.lucene.search.Weight cannot be applied to given types; [ERROR] required: org.apache.lucene.index.AtomicReaderContext,org.apache.lucene.util.Bits [ERROR] found: org.apache.lucene.index.AtomicReaderContext,boolean,boolean,<nulltype> [ERROR] reason: actual and formal argument lists differ in length ________________________________________ From: Suneel Marthi <smar...@apache.org> Sent: 29 October 2014 21:56 To: user@mahout.apache.org Subject: Re: Lucene version compatibility u need to update the Lucene Jars in pom.xml to relevant versions. On Wed, Oct 29, 2014 at 4:50 PM, Tom LAMPERT <t.lamp...@laboquantup.eu> wrote: > Hi Suneel, > > Thank you for your help but replacing all instances of LUCENE_46 with > LUCENE_410 (or 47, 48, etc) results in a 'cannot find symbol' error: > > ERROR] > /mahout/trunk/mrlegacy/src/main/java/org/apache/mahout/common/lucene/AnalyzerUtils.java:[35,53] > cannot find symbol > [ERROR] symbol: variable LUCENE_47 > [ERROR] location: class org.apache.lucene.util.Version > > Should I also be replacing some lucene jars? > > Kind regards, > > Tom > > ________________________________________ > From: Suneel Marthi <smar...@apache.org> > Sent: 28 October 2014 22:33 > To: user@mahout.apache.org > Subject: Re: Lucene version compatibility > > Yes it should be possible, and we have been upgrading to the latest and > greatest Lucene versions at the point of Release and may be a trivial > change. > Just gotta replace all references in the code for 'Version_46' with > 'Version_<Latest>'. > > Also Lucene >= 4.7 mandate Java 1.7. > > On Tue, Oct 28, 2014 at 5:21 PM, Tom LAMPERT <t.lamp...@laboquantup.eu> > wrote: > > > Hello, > > > > Does anyone know whether it is possible to upgrade the version of lucene > > that mahout's lucene.vector and luecene2seq functions are compatible > with? > > Currently they require lucene 4.6.1 indexes but this version is already > > quite dated... > > > > Kind regards, > > > > Tom >
