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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
<meta name="author" value="Otis Gospodneti?">
<meta name="email" value="otis @ apache dot org">
<title>Apache Lucene - Apache Lucene - System Properties</title>
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<p><strong>About</strong></p>
<ul>
<li> <a href="./index.html">Overview</a>
</li>
<li> <a href="./features.html">Features</a>
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<li> <a href="http://wiki.apache.org/jakarta-lucene/PoweredBy">Powered by Lucene</a>
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<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td bgcolor="#525D76">
<font color="#ffffff" face="arial,helvetica,sanserif">
<a name="About this Document"><strong>About this Document</strong></a>
</font>
</td></tr>
<tr><td>
<blockquote>
<p>
Lucene has a number of properties that can be tuned. They can be adjusted either
programmatically, using the Lucene API, or their default values can be set via
system properties (only up to including Lucene 1.4) described in this document. Starting
with Lucene 1.9, the system properties are not supported anymore and the API
(i.e. the get/set methods) should be used directly.
</p>
</blockquote>
</p>
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<tr><td><br/></td></tr>
</table>
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td bgcolor="#525D76">
<font color="#ffffff" face="arial,helvetica,sanserif">
<a name="System Properties"><strong>System Properties</strong></a>
</font>
</td></tr>
<tr><td>
<blockquote>
<p>
<table width="100%" border="0" cellpadding="4" cellspacing="0">
<tr valign="top">
<td width="25%"><b>Lucene Property</b></td>
<td width="25%"><b>System Property</b></td>
<td width="25%"><b>Default Value</b></td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/index/IndexWriter.html#mergeFactor">mergeFactor</a>
</td>
<td width="25%">
org.apache.lucene.mergeFactor
</td>
<td width="25%">
10
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/index/IndexWriter.html#minMergeDocs">minMergeDocs</a>
</td>
<td width="25%">
org.apache.lucene.minMergeDocs
</td>
<td width="25%">
10
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/index/IndexWriter.html#maxMergeDocs">maxMergeDocs</a>
</td>
<td width="25%">
org.apache.lucene.maxMergeDocs
</td>
<td width="25%">
Integer.MAX_VALUE
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/index/IndexWriter.html#maxFieldLength">maxFieldLength</a>
</td>
<td width="25%">
org.apache.lucene.maxFieldLength
</td>
<td width="25%">
10000
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/index/IndexWriter.html#COMMIT_LOCK_TIMEOUT">COMMIT_LOCK_TIMEOUT</a>
</td>
<td width="25%">
org.apache.lucene.commitLockTimeout
</td>
<td width="25%">
10000 ms
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/index/IndexWriter.html#WRITE_LOCK_TIMEOUT">WRITE_LOCK_TIMEOUT</a>
</td>
<td width="25%">
org.apache.lucene.writeLockTimeout
</td>
<td width="25%">
1000 ms
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/search/BooleanQuery.html#maxClauseCount">maxClauseCount</a>
</td>
<td width="25%">
org.apache.lucene.maxClauseCount
</td>
<td width="25%">
1024
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/store/FSDirectory.html#lockDir">lockDir</a>
</td>
<td width="25%">
org.apache.lucene.lockDir
</td>
<td width="25%">
the value of <code>java.io.tmpdir</code> system property
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/store/FSDirectory.html#FSDirectory.class">FSDirectory.class</a>
</td>
<td width="25%">
org.apache.lucene.FSDirectory.class
</td>
<td width="25%">
org.apache.lucene.store.FSDirectory
</td>
</tr>
<tr valign="TOP">
<td width="25%">
<a href="api/org/apache/lucene/index/SegmentReader.html#SegmentReader.class">SegmentReader.class</a>
</td>
<td width="25%">
org.apache.lucene.index.SegmentReader.class
</td>
<td width="25%">
org.apache.lucene.index.SegmentReader
</td>
</tr>
</table>
</p>
</blockquote>
</p>
</td></tr>
<tr><td><br/></td></tr>
</table>
</td>
</tr>
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<div align="center"><font color="#525D76" size="-1"><em>
Copyright &#169; 1999-2005, The Apache Software Foundation
</em></font></div>
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</body>
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