Lucene Build Instructions
Today I built lucene-1.2-rc3 from the source distribution for the first time. On the whole it was easy enough but a couple of points: BUILD.txt says Install JDK 1.3. Might it be better to say Install JDK 1.3 or later?. Lots of people are probably running 1.4 already. BUILD.txt makes no mention of javaCC. You find out soon enough when run ant, but would be better to have it mentioned up front. Also I couldn't get the .ant.properties method mentioned in build.xml to work (probably finger trouble) but copying javaCC.zip to the lucene-1.2-rc3-src/lib/ directory worked fine. Also, by default the code as compiled from source and as distributed in the binary download doesn't have line numbers in stack trace dumps. This may be deliberate in which case fine, but the line numbers do help in tracking down problems. -- Ian. [EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Web demo example: Errors from Tomcat startup
Does tomcat 4 understand the 3.2.x header? If so, lets just use the 3.2.x header. On Fri, 2002-02-08 at 04:55, Ian Lea wrote: ... note that I make the assumption you're using 4.0.x or know how to adapt it. I'd guess if you take that top line and replace it with the top line from one of the tomcat 3.2.x example web.xml files, you'll probably hit paydirt. Probably tomcat can't read the newer format. (but the file is practically blank anyhow). I think that is correct. Tomcat 3.whatever understands !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.2//EN http://java.sun.com/dtd/web-app_2_2.dtd; without recourse to any external sites, and Tomcat 4.whatever understands !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; but Tomcat 3 doesn't. So just edit web.xml and replace 3 with 2, twice. Perhaps that should be noted in the demo docs if it isn't already. -- Ian. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- www.superlinksoftware.com www.sourceforge.net/projects/poi - port of Excel format to java http://developer.java.sun.com/developer/bugParade/bugs/4487555.html - fix java generics! The avalanche has already started. It is too late for the pebbles to vote. -Ambassador Kosh -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Web demo example: Errors from Tomcat startup
Looks like it does. -- Ian. Andrew C. Oliver wrote: Does tomcat 4 understand the 3.2.x header? If so, lets just use the 3.2.x header. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: PhraseQuery: NullPointerException
*This message was transferred with a trial version of CommuniGate(tm) Pro*
Thanks, I may just step back to 1.2-rc2 until they've fixed this. I'm in a
bit of a crunch and don't feel like building lucene myself. Anyway, thanks
again for the response!
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Ian Lea
Sent: Friday, February 08, 2002 6:08 AM
To: Lucene Users List
Subject: Re: PhraseQuery: NullPointerException
1.2-rc3 seems to generate NPE if one or more of the words in
the search phrase are not present in the index.
Works as expected, no NPE, with 1.2-rc2.
If change method seek() in org.apache.lucene.index.SegmentTermPositions from
final void seek(TermInfo ti) throws IOException {
super.seek(ti);
proxStream.seek(ti.proxPointer);
}
to
final void seek(TermInfo ti) throws IOException {
super.seek(ti);
if (ti != null) {
proxStream.seek(ti.proxPointer);
}
}
the NPE goes away. But I don't know what is going on here so
this may well not be the correct solution.
--
Ian.
[EMAIL PROTECTED]
Jonathan Franzone wrote:
*This message was transferred with a trial version of CommuniGate(tm) Pro*
I thought I saw a post that delt with this problem previously, but I
couldn't find it in the archives. If it is a duplicate question I
apologize.
I'm building a PhraseQuery and getting a random NullPointerException. It
doesn't occur with all phrases, but is consistent with respect to the ones
it does occur with. For example: visual basic, information systems,
and
project manager always succeed. But other phrases like general
public,
proven abilities, and sql server always fail. The stack trace is as
follows:
caught a class java.lang.NullPointerException with message: null
java.lang.NullPointerException
at org.apache.lucene.index.SegmentTermPositions.seek(Unknown
Source)
at org.apache.lucene.index.SegmentTermDocs.seek(Unknown Source)
at org.apache.lucene.index.SegmentsTermDocs.termDocs(Unknown
Source)
at org.apache.lucene.index.SegmentsTermDocs.next(Unknown Source)
at org.apache.lucene.search.PhrasePositions.next(Unknown Source)
at org.apache.lucene.search.PhraseScorer.score(Unknown Source)
at org.apache.lucene.search.IndexSearcher.search(Unknown Source)
at org.apache.lucene.search.Hits.getMoreDocs(Unknown Source)
at org.apache.lucene.search.Hits.init(Unknown Source)
at org.apache.lucene.search.Searcher.search(Unknown Source)
at org.apache.lucene.search.Searcher.search(Unknown Source)
at
com.jobwarehouse.lucene.search.JWPassiveResumeSearch.search(JWPassiveResumeS
earch.java:209)
at
com.jobwarehouse.lucene.search.JWPassiveResumeSearch.main(JWPassiveResumeSea
rch.java:280)
Thanks!
Jonathan Franzone
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Re: Web demo example: Errors from Tomcat startup
Hi Andy,
Thanks for clarifying the demo instructions!
Now, what about the NPE that Ken Munro cited (included below)? I'm
encountering this too:
dpg% cd $TOMCAT_HOME/webapps/
dpg% java -verbose org.apache.lucene.demo.IndexHTML -create -index
/opt/lucene/index
...
[Loaded java.io.RandomAccessFile from /usr/local/j2sdk1_3_1_02/jre/lib/rt.jar]
caught a class java.lang.NullPointerException
with message: null
Could that be related to the NPE problem discussed in the PhraseQuery:
NullPointerException thread, for which Ian offered a possible
solution, included here:
Date: Fri, 08 Feb 2002 12:08:25 +
From: Ian Lea [EMAIL PROTECTED]
Subject: Re: PhraseQuery: NullPointerException
1.2-rc3 seems to generate NPE if one or more of the words in
the search phrase are not present in the index.
Works as expected, no NPE, with 1.2-rc2.
If change method seek() in org.apache.lucene.index.SegmentTermPositions from
final void seek(TermInfo ti) throws IOException {
super.seek(ti);
proxStream.seek(ti.proxPointer);
}
to
final void seek(TermInfo ti) throws IOException {
super.seek(ti);
if (ti != null) {
proxStream.seek(ti.proxPointer);
}
}
the NPE goes away. But I don't know what is going on here so
this may well not be the correct solution.
--
Ian.
[EMAIL PROTECTED]
Thanks again for your help with this.
-don
Date: Wed, 06 Feb 2002 20:29:16 -0400
From: Ken Munro [EMAIL PROTECTED]
...
When I run java org.apache.lucene.demo.IndexHTML -create -index
/opt/lucene/index,
I get a null pointer exception (using either JDK 1.2 or 1.3). I am running Red
Hat 7.1,
with the Sun JDKs.
I set up this script to run it:
#!/bin/bash
/usr/java/jdk1.3.1_02/bin/java -verbose -cp
/usr/java/lucene-1.2-rc3-bin/lucene-1.2-rc3.jar:/usr/java/lucene-1.2-rc3-bin/luc
ene-demos-1.2-rc3.jar org.apache.lucene.demo.IndexHTML -create -index
/opt/lucene/index
And here is the (verbose--hope its not too much) output:
...
[Loaded java.io.RandomAccessFile from /usr/java/jdk1.3.1_02/jre/lib/rt.jar]
caught a class java.lang.NullPointerException
with message: null
[Loaded java.lang.Shutdown$Lock from /usr/java/jdk1.3.1_02/jre/lib/rt.jar]
Thanks for all your help.
Cheers.
Ken Munro
--
Ken Munro
Main Sail Productions
http://www.mainsail.ca/
[EMAIL PROTECTED]
902.431.WWW3
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New to Lucene
Hi, I was reading over the docs and reading up in general on Lucene. I want to know if I can do the following: 1. Select one column from a subset of tables in a MS SQL Server database I have, and index those...with some mechanism to keep the index in sync with data as rows are added. 2. Run a query against one or many of the index columns. Is this possible? I see that Lucene *can* index database data, but something needs to be coded to handle this? Has anyone built any thin framework or have code snippets available? Has anyone ever used Lucene to replace Fulcrum? TIA, Sean -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: PhraseQuery: NullPointerException
*This message was transferred with a trial version of CommuniGate(tm) Pro* Thank you thank you thank you thank you!!! -Original Message- From: Doug Cutting [mailto:[EMAIL PROTECTED]] Sent: Friday, February 08, 2002 5:12 PM To: 'Lucene Users List' Subject: RE: PhraseQuery: NullPointerException *This message was transferred with a trial version of CommuniGate(tm) Pro* This bug has been fixed. The fix will be in tonight's nightly build. Doug -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
