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https://issues.apache.org/jira/browse/HBASE-2107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12798865#action_12798865
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stack commented on HBASE-2107:
------------------------------
When I try the patch, I get this:
{code}
compile-core-test:
[javac] Compiling 98 source files to
/Users/stack/checkouts/hbase/trunk/build/test
[javac]
/Users/stack/checkouts/hbase/trunk/src/test/org/apache/hadoop/hbase/mapreduce/DisabledBecauseVariableSubstTooLargeExceptionTestTableIndex.java:208:
cannot find symbol
[javac] symbol : constructor IndexSearcher(java.lang.String)
[javac] location: class org.apache.lucene.search.IndexSearcher
[javac] searcher = new IndexSearcher((new
File(indexDirs[0].getPath().
[javac] ^
[javac]
/Users/stack/checkouts/hbase/trunk/src/test/org/apache/hadoop/hbase/mapreduce/DisabledBecauseVariableSubstTooLargeExceptionTestTableIndex.java:213:
cannot find symbol
[javac] symbol : constructor IndexSearcher(java.lang.String)
[javac] location: class org.apache.lucene.search.IndexSearcher
[javac] searchers[i] = new IndexSearcher((new
File(indexDirs[i].getPath().
[javac] ^
[javac]
/Users/stack/checkouts/hbase/trunk/src/test/org/apache/hadoop/hbase/mapreduce/DisabledBecauseVariableSubstTooLargeExceptionTestTableIndex.java:238:
cannot find symbol
[javac] symbol : method search(org.apache.lucene.search.TermQuery)
[javac] location: class org.apache.lucene.search.Searcher
[javac] int hitCount = searcher.search(new
TermQuery(term)).length();
[javac] ^
[javac] Note: Some input files use or override a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] Note:
/Users/stack/checkouts/hbase/trunk/src/test/org/apache/hadoop/hbase/HBaseTestCase.java
uses unchecked or unsafe operations.
[javac] Note: Recompile with -Xlint:unchecked for details.
[javac] 3 errors
{code}
Its a disabled test. I can remove it but if you are going to play with lucene,
you might want to pay attention to it. The way configuration was passed to
lucene was by embedding a bunch of xml into a Configuration property. On
occasion we were seeing that hadoop would complain because there were too many
substitutions/interpolations happening... it has a max of 20 or so (The
substitution I'm referring to is the feature where ${hadoop.tmp.dir} gets
replaced by whatever the value of the hadoop.tmp.dir property is).
> Upgrading Lucene 2.2 to Lucene 3.0.0
> -------------------------------------
>
> Key: HBASE-2107
> URL: https://issues.apache.org/jira/browse/HBASE-2107
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: Kay Kay
> Attachments: HBASE-2107.patch
>
>
> HBase has an utility to export columns as Lucene indices.
> (o.a.h.hbase.mapreduce.BuildTableIndex ) .
> This patch increases the version in libraries.properties and addresses some
> deprecations towards moving it.
> Rationale for upgradation:
> ====================
> A lot has been happening in the Lucene since 2.2, with improved performance
> and focus on NRT (Near Real Time search) happening recently. Hence - we need
> to keep up with the same and make the utility publish indices for the new
> version.
> Caveats:
> =======
> Index created by Lucene 3.0 is *not backward-compatible* with Lucene 2.2
> code. In other words - as part of this upgradation - indices need to be
> created all over again and the library interacting with the index ( readers /
> searchers ) need to be upgraded to the new version as well.
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