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yanyinxi:
这个不错哦, 挺好学习中
solr 术语解释 -
yanshuihualiveses:
不错! 学习中。。。
java jar工具使用 -
chenlb:
<div class="quote_title ...
solr 术语解释 -
chmod777:
哥们 能不能写篇关于solr分布式的文章?
solr 术语解释 -
JLK:
<div class="quote_title ...
solr的配置参数理解
l dataDir参数
用于替换默认的索引数据目录(./data)。如果重复指定,将使用重复的值。如果不是绝对路径,将使用servlet容器当前工作目录下的相对路径。
<dataDir>/var/data/solr</dataDir>
l mainIndex参数部分
mainIndex>
<!-- lucene options specific to the main on-disk lucene index -->
<useCompoundFile>false</useCompoundFile>
<mergeFactor>10</mergeFactor>
<maxBufferedDocs>1000</maxBufferedDocs>
<maxMergeDocs>2147483647</maxMergeDocs>
<maxFieldLength>10000</maxFieldLength>
</mainIndex>
【mergeFactor】指定同样大小的segment达到多少时会被合并。如果你设置改值为10,那么每当1000(maxBufferedDocs)个doc被添加到索引时(它们可能在内存中),一个新的sgement将在硬盘上创建,当第10个同样大小的segment被创建后,这10个segement 将被合并成一个包含10000(10*1000)个doc的segment。同样当第10个包含10000个doc的segment被创建的时候,他们将合并成更大的segment。当然这种合并并不是无休止的。这是因为下面的参数对其进行了限制。
【maxMergeDocs】每个segment所能容纳的doc数目上限。
【maxFieldLength】指定每个field的最大长度。
l Update Handler 参数部分
这部分通常是关于内部如如何处理update低级配置信息(不要与处理客户端发送的update的Request Handler高级配置信息相混淆)。
<updateHandler class="solr.DirectUpdateHandler2">
<!-- Limit the number of deletions Solr will buffer during doc updating.
Setting this lower can help bound memory use during indexing.
-->
<maxPendingDeletes>100000</maxPendingDeletes>
<!-- autocommit pending docs if certain criteria are met. Future versions may expand the available
criteria -->
<autoCommit>
<maxDocs>10000</maxDocs> <!-- maximum uncommited docs before autocommit triggered -->
<maxTime>86000</maxTime> <!-- maximum time (in MS) after adding a doc before an autocommit is triggered -->
</autoCommit>
l 与更新相关的事件监听器("Update" Related Event Listeners)
为与特殊更新相关的事件("postCommit" 和 "postOptimize".)指定监听器。监听器能触发任意的特殊代码,它们的典型应用是快照功能。
...
<!-- The RunExecutableListener executes an external command.
exe - the name of the executable to run
dir - dir to use as the current working directory. default="."
wait - the calling thread waits until the executable returns.
default="true"
args - the arguments to pass to the program. default=nothing
env - environment variables to set. default=nothing
-->
<!-- A postCommit event is fired after every commit
-->
<listener event="postCommit" class="solr.RunExecutableListener">
<str name="exe">snapshooter</str>
<str name="dir">solr/bin</str>
<bool name="wait">true</bool>
<!--
<arr name="args"> <str>arg1</str> <str>arg2</str> </arr>
<arr name="env"> <str>MYVAR=val1</str> </arr>
-->
</listener>
</updateHandler>
l 查询参数部分(The Query Section)
控制与查询相关的一切。
<query>
<!-- Maximum number of clauses in a boolean query... can affect range
or wildcard queries that expand to big boolean queries.
An exception is thrown if exceeded.
-->
<maxBooleanClauses>1024</maxBooleanClauses>
l 缓存参数部分(Caching Section)
当你的索引量增加或变化的时候,你需要在这里进行配置。关于缓存配置的更多细节请点这里。
<!-- Cache used by SolrIndexSearcher for filters (DocSets),
unordered sets of *all* documents that match a query.
When a new searcher is opened, its caches may be prepopulated
or "autowarmed" using data from caches in the old searcher.
autowarmCount is the number of items to prepopulate. For LRUCache,
the autowarmed items will be the most recently accessed items.
Parameters:
class - the SolrCache implementation (currently only LRUCache)
size - the maximum number of entries in the cache
initialSize - the initial capacity (number of entries) of
the cache. (seel java.util.HashMap)
autowarmCount - the number of entries to prepopulate from
and old cache.
-->
<filterCache
class="solr.LRUCache"
size="512"
initialSize="512"
autowarmCount="256"/>
<!-- queryResultCache caches results of searches - ordered lists of
document ids (DocList) based on a query, a sort, and the range
of documents requested. -->
<queryResultCache
class="solr.LRUCache"
size="512"
initialSize="512"
autowarmCount="256"/>
<!-- documentCache caches Lucene Document objects (the stored fields for each document).
Since Lucene internal document ids are transient, this cache will not be autowarmed. -->
<documentCache
class="solr.LRUCache"
size="512"
initialSize="512"
autowarmCount="0"/>
<!-- Example of a generic cache. These caches may be accessed by name
through SolrIndexSearcher.getCache().cacheLookup(), and cacheInsert().
The purpose is to enable easy caching of user/application level data.
The regenerator argument should be specified as an implementation
of solr.search.CacheRegenerator if autowarming is desired. -->
<!--
<cache name="myUserCache"
class="solr.LRUCache"
size="4096"
initialSize="1024"
autowarmCount="1024"
regenerator="org.mycompany.mypackage.MyRegenerator"
/>
-->
<!-- An optimization that attempts to use a filter to satisfy a search.
If the requested sort does not include a score, then the filterCache
will be checked for a filter matching the query. If found, the filter
will be used as the source of document ids, and then the sort will be
applied to that.
-->
<useFilterForSortedQuery>true</useFilterForSortedQuery>
<!-- An optimization for use with the queryResultCache. When a search
is requested, a superset of the requested number of document ids
are collected. For example, of a search for a particular query
requests matching documents 10 through 19, and queryWindowSize is 50,
then documents 0 through 50 will be collected and cached. Any further
requests in that range can be satisfied via the cache.
-->
<queryResultWindowSize>50</queryResultWindowSize>
<!-- This entry enables an int hash representation for filters (DocSets)
when the number of items in the set is less than maxSize. For smaller
sets, this representation is more memory efficient, more efficient to
iterate over, and faster to take intersections.
-->
<HashDocSet maxSize="3000" loadFactor="0.75"/>
<!-- boolToFilterOptimizer converts boolean clauses with zero boost
cached filters if the number of docs selected by the clause exceeds the
threshold (represented as a fraction of the total index)
-->
<boolTofilterOptimizer enabled="true" cacheSize="32" threshold=".05"/>
<!-- Lazy field loading will attempt to read only parts of documents on disk that are
requested. Enabling should be faster if you aren't retrieving all stored fields.
-->
<enableLazyFieldLoading>false</enableLazyFieldLoading>
l 查询相关的事件监听器参数配置("Query" Related Event Listeners)
在这里定义与特殊查询相关的事件监听器,使用该监听器实现需要的代码,例如启动常用的查询去预热缓存。
【newSearcher】 在有注册搜索器存在的时启动一个新的搜索器,下例中的监听器就是这类,它获得查询列表并将它们发送到新的搜索器以达到预热的目的。
<!-- a newSearcher event is fired whenever a new searcher is being
prepared and there is a current searcher handling requests
(aka registered).
-->
<!-- QuerySenderListener takes an array of NamedList and
executes a local query request for each NamedList in sequence.
-->
<!--
<listener event="newSearcher" class="solr.QuerySenderListener">
<arr name="queries">
<lst> <str name="q">solr</str>
<str name="start">0</str>
<str name="rows">10</str>
</lst>
<lst> <str name="q">rocks</str>
<str name="start">0</str>
<str name="rows">10</str>
</lst>
</arr>
-->
【firstSearcher】
当不存在已注册的搜索器时启动新的firstSearcher。下例正式如此,该监听器获得查询列表将其发送到正启动的新的搜索器,将其预热。(注意,只有当存在已注册搜索器的时候才可以使用自动预热auto-warming)
<!-- a firstSearcher event is fired whenever a new searcher is being
prepared but there is no current registered searcher to handle
requests or to gain prewarming data from.
-->
<!--
<listener event="firstSearcher" class="solr.QuerySenderListener">
<arr name="queries">
<lst> <str name="q">fast_warm</str>
<str name="start">0</str>
<str name="rows">10</str>
</lst>
</arr>
</listener>
评论
<div class="quote_div">
<p class="MsoListParagraph" style="text-indent: -21pt; margin: 0cm 0cm 0pt 21pt;"><span style="font-family: Wingdings;"><span><span style="font-size: small;">l</span><span> </span></span></span><span style="font-size: small;"><strong><span lang="EN-US">dataDir</span></strong><strong><span>参数</span></strong><strong></strong></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>用于替换默认的索引数据目录(</span><span lang="EN-US">./data</span><span>)。如果重复指定,将使用重复的值。如果不是绝对路径,将使用</span><span lang="EN-US">servlet</span><span>容器当前</span><span>工作目录下的相对路径。</span></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<p class="MsoNormal" align="left" style="text-align: left; line-height: 15pt; margin: 0cm 0cm 0pt; background: #f3f5f7; padding: 0cm;"><span lang="EN-US"><dataDir>/var/data/solr</dataDir></span></p>
</div>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><strong><span lang="EN-US"><span style="font-size: small;"> </span></span></strong></p>
<p class="MsoListParagraph" style="text-indent: -21pt; margin: 0cm 0cm 0pt 21pt;"><span style="font-family: Wingdings;"><span><span style="font-size: small;">l</span><span> </span></span></span><span style="font-size: small;"><strong><span lang="EN-US">mainIndex</span></strong><strong><span>参数部分</span></strong><strong></strong></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;">mainIndex></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- lucene options specific to the main on-disk lucene index --></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><useCompoundFile>false</useCompoundFile></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><mergeFactor>10</mergeFactor></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><maxBufferedDocs>1000</maxBufferedDocs></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><maxMergeDocs>2147483647</maxMergeDocs></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><maxFieldLength>10000</maxFieldLength></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></mainIndex></span></span></pre>
</div>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span lang="EN-US"><span style="font-size: small;"> </span></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>【</span><span lang="EN-US">mergeFactor</span><span>】</span><span>指定同样大小的</span><span lang="EN-US">segment</span><span>达到多少时会被合并。如果你设置改值为</span><span lang="EN-US">10</span><span>,那么每当</span><span lang="EN-US">1000</span><span>(</span><span lang="EN-US">maxBufferedDocs</span><span>)个</span><span lang="EN-US">doc</span><span>被添加到索引时(它们可能在内存中),一个新的</span><span lang="EN-US">sgement</span><span>将在硬盘上创建,当第</span><span lang="EN-US">10</span><span>个同样大小的</span><span lang="EN-US">segment</span><span>被创建后,这</span><span lang="EN-US">10</span><span>个</span><span lang="EN-US">segement </span><span>将被合并成一个包含</span><span lang="EN-US">10000</span><span>(</span><span lang="EN-US">10*1000</span><span>)个</span><span lang="EN-US">doc</span><span>的</span><span lang="EN-US">segment</span><span>。同样当第</span><span lang="EN-US">10</span><span>个包含</span><span lang="EN-US">10000</span><span>个</span><span lang="EN-US">doc</span><span>的</span><span lang="EN-US">segment</span><span>被创建的时候,他们将合并成更大的</span><span lang="EN-US">segment</span><span>。当然这种合并并不是无休止的。这是因为下面的参数对其进行了限制。</span></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>【</span><span lang="EN-US">maxMergeDocs</span><span>】每个</span><span lang="EN-US">segment</span><span>所能容纳的</span><span lang="EN-US">doc</span><span>数目上限。</span></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>【</span><span lang="EN-US">maxFieldLength</span><span>】指定每个</span><span lang="EN-US">field</span><span>的最大长度。</span></span></p>
<p class="MsoListParagraph" style="text-indent: -21pt; margin: 0cm 0cm 0pt 21pt;"><span style="font-family: Wingdings;"><span><span style="font-size: small;">l</span><span> </span></span></span><span style="font-size: small;"><strong><span lang="EN-US">Update Handler </span></strong><strong><span>参数部分</span></strong><strong></strong></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>这部分通常是关于内部如如何处理</span><span lang="EN-US">update</span><span>低级配置信息(不要与处理客户端发送的</span><span lang="EN-US">update</span><span>的</span><span lang="EN-US">Request Handler</span><span>高级配置信息相混淆)。</span></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><updateHandler class="solr.DirectUpdateHandler2"></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- Limit the number of deletions Solr will buffer during doc updating.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>Setting this lower can help bound memory use during indexing.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><maxPendingDeletes>100000</maxPendingDeletes></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- autocommit pending docs if certain criteria are met.<span> </span>Future versions may expand the available</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>criteria --></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><autoCommit><span> </span></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><maxDocs>10000</maxDocs> <!-- maximum uncommited docs before autocommit triggered --></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><maxTime>86000</maxTime> <!-- maximum time (in MS) after adding a doc before an autocommit is triggered --></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></autoCommit></span></span></pre>
<pre><span style="color: black;"><span style="font-family: Courier; font-size: small;"> </span></span></pre>
</div>
<p class="MsoListParagraph" style="text-indent: -21pt; margin: 0cm 0cm 0pt 21pt;"><span style="font-family: Wingdings;"><span><span style="font-size: small;">l</span><span> </span></span></span><span style="font-size: small;"><strong><span>与更新相关的事件监听器(</span></strong><strong><span lang="EN-US">"Update" Related Event Listeners</span></strong><strong><span>)</span></strong><strong></strong></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>为与特殊更新相关的事件(</span><span lang="EN-US">"postCommit" </span><span>和</span><span lang="EN-US"> "postOptimize".</span><span>)指定监听器。监听器能触发任意的特殊代码,它们的典型应用是快照功能。</span></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>...</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- The RunExecutableListener executes an external command.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>exe<span> </span>- the name of the executable to run</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>dir<span> </span>-<span> </span>dir to use as the current working directory. default="."</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>wait - the calling thread waits until the executable returns. </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>default="true"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>args - the arguments to pass to the program.<span> </span>default=nothing</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>env<span> </span>- environment variables to set.<span> </span>default=nothing</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- A postCommit event is fired after every commit</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><listener event="postCommit" class="solr.RunExecutableListener"></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="exe">snapshooter</str></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="dir">solr/bin</str></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><bool name="wait">true</bool></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!--</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><arr name="args"> <str>arg1</str> <str>arg2</str> </arr></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><arr name="env"> <str>MYVAR=val1</str> </arr></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></listener></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></updateHandler></span></span></pre>
</div>
<p class="MsoListParagraph" style="text-indent: -21pt; margin: 0cm 0cm 0pt 21pt;"><span style="font-family: Wingdings;"><span><span style="font-size: small;">l</span><span> </span></span></span><span style="font-size: small;"><strong><span>查询参数部分(</span></strong><strong><span lang="EN-US">The Query Section</span></strong><strong><span>)</span></strong><strong></strong></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>控制与查询相关的一切。</span></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<pre><span style="font-size: 10.5pt; color: black;"><span style="font-family: Courier;"><query></span></span></pre>
<pre><span style="font-size: 10.5pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- Maximum number of clauses in a boolean query... can affect range </span></span></pre>
<pre><span style="font-size: 10.5pt; color: black;"><span style="font-family: Courier;"><span> </span>or wildcard queries that expand to big boolean queries.<span> </span></span></span></pre>
<pre><span style="font-size: 10.5pt; color: black;"><span style="font-family: Courier;"><span> </span>An exception is thrown if exceeded.</span></span></pre>
<pre><span style="font-size: 10.5pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 10.5pt; color: black;"><span style="font-family: Courier;"><span> </span><maxBooleanClauses>1024</maxBooleanClauses></span></span></pre>
</div>
<p class="MsoListParagraph" style="text-indent: -21pt; margin: 0cm 0cm 0pt 21pt;"><span style="font-family: Wingdings;"><span><span style="font-size: small;">l</span><span> </span></span></span><span style="font-size: small;"><strong><span>缓存参数部分(</span></strong><strong><span lang="EN-US">Caching Section</span></strong><strong><span>)</span></strong><strong></strong></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>当你的索引量增加或变化的时候,你需要在这里进行配置。关于缓存配置的更多细节请点</span><span lang="EN-US"><a href="http://wiki.apache.org/solr/SolrCaching"><span lang="EN-US"><span lang="EN-US">这里</span></span></a></span><span>。</span></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><!-- Cache used by SolrIndexSearcher for filters (DocSets),</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>unordered sets of *all* documents that match a query.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>When a new searcher is opened, its caches may be prepopulated</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>or "autowarmed" using data from caches in the old searcher.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>autowarmCount is the number of items to prepopulate.<span> </span>For LRUCache,</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>the autowarmed items will be the most recently accessed items.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>Parameters:</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>class - the SolrCache implementation (currently only LRUCache)</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>size - the maximum number of entries in the cache</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>initialSize - the initial capacity (number of entries) of</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>the cache.<span> </span>(seel java.util.HashMap)</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>autowarmCount - the number of entries to prepopulate from</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>and old cache.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><span> </span><filterCache</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>class="solr.LRUCache"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>size="512"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>initialSize="512"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>autowarmCount="256"/></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- queryResultCache caches results of searches - ordered lists of</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>document ids (DocList) based on a query, a sort, and the range</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>of documents requested.<span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><queryResultCache</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>class="solr.LRUCache"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>size="512"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>initialSize="512"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>autowarmCount="256"/></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- documentCache caches Lucene Document objects (the stored fields for each document).</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>Since Lucene internal document ids are transient, this cache will not be autowarmed.<span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><documentCache</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>class="solr.LRUCache"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>size="512"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>initialSize="512"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>autowarmCount="0"/></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- Example of a generic cache.<span> </span>These caches may be accessed by name</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>through SolrIndexSearcher.getCache().cacheLookup(), and cacheInsert().</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>The purpose is to enable easy caching of user/application level data.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>The regenerator argument should be specified as an implementation</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>of solr.search.CacheRegenerator if autowarming is desired.<span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!--</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><cache name="myUserCache"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>class="solr.LRUCache"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>size="4096"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>initialSize="1024"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>autowarmCount="1024"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>regenerator="org.mycompany.mypackage.MyRegenerator"</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>/></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- An optimization that attempts to use a filter to satisfy a search.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>If the requested sort does not include a score, then the filterCache </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>will be checked for a filter matching the query.<span> </span>If found, the filter </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>will be used as the source of document ids, and then the sort will be </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>applied to that.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><useFilterForSortedQuery>true</useFilterForSortedQuery></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- An optimization for use with the queryResultCache.<span> </span>When a search</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>is requested, a superset of the requested number of document ids</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>are collected.<span> </span>For example, of a search for a particular query</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>requests matching documents 10 through 19, and queryWindowSize is 50, </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>then documents 0 through 50 will be collected and cached. Any further </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>requests in that range can be satisfied via the cache.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><queryResultWindowSize>50</queryResultWindowSize></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> <span> </span><!-- This entry enables an int hash representation for filters (DocSets) </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>when the number of items in the set is less than maxSize. For smaller </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>sets, this representation is more memory efficient, more efficient to </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>iterate over, and faster to take intersections.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><HashDocSet maxSize="3000" loadFactor="0.75"/></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- boolToFilterOptimizer converts boolean clauses with zero boost</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>cached filters if the number of docs selected by the clause exceeds the</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>threshold (represented as a fraction of the total index)</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><boolTofilterOptimizer enabled="true" cacheSize="32" threshold=".05"/></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- Lazy field loading will attempt to read only parts of documents on disk that are </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>requested.<span> </span>Enabling should be faster if you aren't retrieving all stored fields.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><enableLazyFieldLoading>false</enableLazyFieldLoading></span></span></pre>
</div>
<p class="MsoListParagraph" style="text-indent: -21pt; margin: 0cm 0cm 0pt 21pt;"><span style="font-family: Wingdings;"><span><span style="font-size: small;">l</span><span> </span></span></span><span style="font-size: small;"><strong><span>查询相关的事件监听器参数配置(</span></strong><strong><span lang="EN-US">"Query" Related Event Listeners</span></strong><strong><span>)</span></strong><strong></strong></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>在这里定义与特殊查询相关的事件监听器,使用该监听器实现需要的代码,例如启动常用的查询去预热缓存。</span></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>【</span><span lang="EN-US">newSearcher</span><span>】</span><span> </span><span>在有注册搜索器存在的时启动一个新的搜索器,下例中的监听器就是这类,它获得查询列表并将它们发送到新的搜索器以达到预热的目的。</span></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><!-- a newSearcher event is fired whenever a new searcher is being</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>prepared and there is a current searcher handling requests </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>(aka registered). </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!-- QuerySenderListener takes an array of NamedList and </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>executes a local query request for each NamedList in sequence.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!--</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><listener event="newSearcher" class="solr.QuerySenderListener"></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><arr name="queries"></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><lst> <str name="q">solr</str> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="start">0</str></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="rows">10</str> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></lst></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><lst> <str name="q">rocks</str> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="start">0</str></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="rows">10</str> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></lst></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></arr></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
</div>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>【</span><span lang="EN-US">firstSearcher</span><span>】</span></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: small;"><span>当不存在已注册的搜索器时启动新的</span><span lang="EN-US">firstSearcher</span><span>。下例正式如此,该监听器获得查询列表将其发送到正启动的新的搜索器,将其预热。(注意,只有当存在已注册搜索器的时候才可以使用自动预热</span><span lang="EN-US">auto-warming</span><span>)</span></span></p>
<div style="background: #f3f5f7; border: #aebdcc 1pt solid; padding: 5pt;">
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><!-- a firstSearcher event is fired whenever a new searcher is being</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>prepared but there is no current registered searcher to handle </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>requests or to gain prewarming data from.</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span>--></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><!--</span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><listener event="firstSearcher" class="solr.QuerySenderListener"></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><arr name="queries"></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><lst> <str name="q">fast_warm</str> </span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="start">0</str></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span><str name="rows">10</str></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></lst></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></arr></span></span></pre>
<pre><span style="font-size: 9pt; color: black;"><span style="font-family: Courier;"><span> </span></listener></span></span></pre>
</div>
</div>
<p> </p>
发表评论
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Solr1.3的启动过程分析三
2008-12-19 18:20 2994在Solr1.3的启动过程分析二中,我们从Solr.xml文 ... -
Solr1.3的启动过程分析二
2008-12-19 11:35 1532这里讲讲CoreContainer的load(String ... -
Solr1.3的启动过程分析一
2008-12-18 17:13 16711. Solr1.3中使用初始化工具Initializer ... -
solr 术语解释
2008-10-09 13:23 1868自动预热(Auto-warming)--当Solr打开一个新的 ... -
solr搜索引擎特性
2008-10-09 13:22 3015英语原文(官方)翻译 Solr 简介 Solr 是一个带有we ... -
nutch 安装及使用中若干常见问题
2008-08-30 11:05 3105最近在搭建nutch搜索平台,期间遇到许多问题,在此与各位分享 ... -
solr 的分析器,分词器和分词过滤器(2)
2008-08-21 18:08 52755. solr.HTMLStripWhitespaceTok ... -
solr 的分析器,分词器和分词过滤器(1)
2008-08-21 16:06 6842【本文基于对此英文网页的理解http://wiki.apach ...
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GWT Spring 使得在 Spring 框架下构造 GWT 应用变得很简单,提供一个易于理解的依赖注入和RPC机制。 Java扫雷游戏 JVMine JVMine用Applets开发的扫雷游戏,可在线玩。 public class JVMine extends java.applet....
GWT Spring 使得在 Spring 框架下构造 GWT 应用变得很简单,提供一个易于理解的依赖注入和RPC机制。 Java扫雷游戏 JVMine JVMine用Applets开发的扫雷游戏,可在线玩。 public class JVMine extends java.applet....
GWT Spring 使得在 Spring 框架下构造 GWT 应用变得很简单,提供一个易于理解的依赖注入和RPC机制。 Java扫雷游戏 JVMine JVMine用Applets开发的扫雷游戏,可在线玩。 public class JVMine extends java.applet....
GWT Spring 使得在 Spring 框架下构造 GWT 应用变得很简单,提供一个易于理解的依赖注入和RPC机制。 Java扫雷游戏 JVMine JVMine用Applets开发的扫雷游戏,可在线玩。 public class JVMine extends java.applet....
GWT Spring 使得在 Spring 框架下构造 GWT 应用变得很简单,提供一个易于理解的依赖注入和RPC机制。 Java扫雷游戏 JVMine JVMine用Applets开发的扫雷游戏,可在线玩。 public class JVMine extends java.applet....
Java波浪文字,一个利用Java处理字符的实例,可以设置运动方向参数,显示文本的字符数组,高速文本颜色,显示字体的 FontMetrics对象,得到Graphics实例,得到Image实例,填充颜色数组数据,初始化颜色数组。...
Java波浪文字,一个利用Java处理字符的实例,可以设置运动方向参数,显示文本的字符数组,高速文本颜色,显示字体的 FontMetrics对象,得到Graphics实例,得到Image实例,填充颜色数组数据,初始化颜色数组。...