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<html><head><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>4. Release 1.6.0 - 12/01/2005</title><link href="../docbook.css" rel="stylesheet" type="text/css"><meta content="DocBook XSL Stylesheets V1.67.2" name="generator"><link rel="start" href="index.html" title="Heritrix Release Notes"><link rel="up" href="index.html" title="Heritrix Release Notes"><link rel="prev" href="1_8_0.html" title="3. Release 1.8.0 - 05/05/2006"><link rel="next" href="1_4_0.html" title="5. Release 1.4.0 - 04/28/2005"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table summary="Navigation header" width="100%"><tr><th align="center" colspan="3">4. Release 1.6.0 - 12/01/2005</th></tr><tr><td align="left" width="20%"><a accesskey="p" href="1_8_0.html">Prev</a> </td><th align="center" width="60%"> </th><td align="right" width="20%"> <a accesskey="n" href="1_4_0.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="1_6_0"></a>4. Release 1.6.0 - 12/01/2005</h2></div></div></div><div class="abstract"><p class="title"><b>Abstract</b></p><p>Release 1.6.0 offers improved remote control and monitoring via JMX, a crawl-checkpointing facility, and experimental support for bloom filter already-included testing, partitioning a crawl across multiple independent crawlers, and per-host/domain/queue-grouping collection quotas. Performance and stability in large crawls is also improved. Among tracked issues, it includes 39 requested enhancements and fixes 96 reported bugs.</p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="1_6_0_limitations"></a>4.1. Known Limitations/Issues</h3></div></div></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="bdb_nfs"></a>4.1.1. java.io.IOException: No locks available</h4></div></div></div><p>BDB will complain 'No locks available' when crawler is being built/run on an NFS mount. Workaround is not run on an NFS-mounted volume. </p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="bdb_64bit"></a>4.1.2. OutOfMemoryError in 64bit JVMs</h4></div></div></div><p>BDB 2.0.90 can overgrow its intended cache size due to a misestimation of instance sizes under 64bit Java VMs, which may be a ⌨️ 快捷键说明
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