Solr 无法搜索 nutch 爬网条目，尽管字段被标记为 indexed = true
Solr cannot search for nutch crawled entries, despite fields being signed as indexed = true
我是 运行 Nutch 1.16 爬虫实例和 Solr 8.3.0 版本。我已经能够在本地目录中抓取文件，并编辑 nutch-site.xml，从中提取一些元数据（尽管没有我希望的那么多）运行 bin/crawl -s urls dircrawl 2 >& dircrawl.log。然后通过 bin/nutch index dircrawl/crawldb/ -linkdb dircrawl/linkdb/ -dir dircrawl/segments/ -filter -normalize 将爬取的数据发送到 Solr，然后通过其标签存储和管理条目。
现在，运行 来自 UI 的 Solr Admin，我正在尝试搜索数据。我确保将我感兴趣的所有条目都标记为 indexed=true。但是，运行 除了 *:* returns 零结果之外的任何搜索。我已经尝试了搜索字段的所有可能组合，也没有骰子。我将 link 描述我的配置文件，首先是 solr，然后是 nutch...
schema.xml (becomes managed-schema when running it, for some reason)
<?xml version="1.0" encoding="UTF-8"?>
<schema name="nutch-crawler-indexing-config" version="1.6">
<uniqueKey>id</uniqueKey>
<fieldType name="_nest_path_" class="solr.NestPathField" omitTermFreqAndPositions="true" omitNorms="true" maxCharsForDocValues="-1" stored="false"/>
<fieldType name="ancestor_path" class="solr.TextField">
<analyzer type="index">
<tokenizer class="solr.KeywordTokenizerFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.PathHierarchyTokenizerFactory" delimiter="/"/>
</analyzer>
</fieldType>
(all fieldTypes are the default ones)
<fieldType name="text_cjk" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.CJKWidthFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.CJKBigramFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_general_rev" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.StopFilterFactory" words="stopwords.txt" ignoreCase="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.ReversedWildcardFilterFactory" maxPosQuestion="2" maxFractionAsterisk="0.33" maxPosAsterisk="3" withOriginal="true"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.SynonymGraphFilterFactory" expand="true" ignoreCase="true" synonyms="synonyms.txt"/>
<filter class="solr.StopFilterFactory" words="stopwords.txt" ignoreCase="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_gl" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_gl.txt" ignoreCase="true"/>
<filter class="solr.GalicianStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_hi" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.IndicNormalizationFilterFactory"/>
<filter class="solr.HindiNormalizationFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_hi.txt" ignoreCase="true"/>
<filter class="solr.HindiStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_hu" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_hu.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Hungarian"/>
</analyzer>
</fieldType>
<fieldType name="text_hy" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_hy.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Armenian"/>
</analyzer>
</fieldType>
<fieldType name="text_id" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_id.txt" ignoreCase="true"/>
<filter class="solr.IndonesianStemFilterFactory" stemDerivational="true"/>
</analyzer>
</fieldType>
<fieldType name="text_it" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.ElisionFilterFactory" articles="lang/contractions_it.txt" ignoreCase="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_it.txt" ignoreCase="true"/>
<filter class="solr.ItalianLightStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_ja" class="solr.TextField" autoGeneratePhraseQueries="false" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.JapaneseTokenizerFactory" mode="search"/>
<filter class="solr.JapaneseBaseFormFilterFactory"/>
<filter class="solr.JapanesePartOfSpeechStopFilterFactory" tags="lang/stoptags_ja.txt"/>
<filter class="solr.CJKWidthFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_ja.txt" ignoreCase="true"/>
<filter class="solr.JapaneseKatakanaStemFilterFactory" minimumLength="4"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_ko" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.KoreanTokenizerFactory" outputUnknownUnigrams="false" decompoundMode="discard"/>
<filter class="solr.KoreanPartOfSpeechStopFilterFactory"/>
<filter class="solr.KoreanReadingFormFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_lv" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_lv.txt" ignoreCase="true"/>
<filter class="solr.LatvianStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_nl" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_nl.txt" ignoreCase="true"/>
<filter class="solr.StemmerOverrideFilterFactory" dictionary="lang/stemdict_nl.txt" ignoreCase="false"/>
<filter class="solr.SnowballPorterFilterFactory" language="Dutch"/>
</analyzer>
</fieldType>
<fieldType name="text_no" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_no.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Norwegian"/>
</analyzer>
</fieldType>
<fieldType name="text_pt" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_pt.txt" ignoreCase="true"/>
<filter class="solr.PortugueseLightStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_ro" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_ro.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Romanian"/>
</analyzer>
</fieldType>
<fieldType name="text_ru" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_ru.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Russian"/>
</analyzer>
</fieldType>
<fieldType name="text_sv" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_sv.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Swedish"/>
</analyzer>
</fieldType>
<fieldType name="text_th" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.ThaiTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_th.txt" ignoreCase="true"/>
</analyzer>
</fieldType>
<fieldType name="text_tr" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.TurkishLowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_tr.txt" ignoreCase="false"/>
<filter class="solr.SnowballPorterFilterFactory" language="Turkish"/>
</analyzer>
</fieldType>
<fieldType name="text_ws" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
</analyzer>
</fieldType>
<field name="_nest_path_" type="_nest_path_"/>
<field name="_root_" type="string" docValues="false" indexed="true" stored="false"/>
<field name="_text_" type="text_general" multiValued="true" indexed="true" stored="false"/>
<field name="_version_" type="plong" indexed="false" stored="false"/>
<field name="boost" type="pdoubles"/>
<field name="content" type="text_general"/>
<field name="digest" type="text_general"/>
<field name="id" type="string" multiValued="false" indexed="true" required="true" stored="true"/>
<field name="metatag.author" type="text_general" indexed="true"/>
<field name="metatag.channels" type="plongs"/>
<field name="metatag.creator" type="text_general" indexed="true"/>
<field name="metatag.samplerate" type="plongs"/>
<field name="metatag.version" type="text_general"/>
<field name="title" type="text_general" indexed="true"/>
<field name="tstamp" type="pdates"/>
<field name="url" type="text_general" stored="true"/>
<dynamicField name="*_txt_en_split_tight" type="text_en_splitting_tight" indexed="true" stored="true"/>
<dynamicField name="*_descendent_path" type="descendent_path" indexed="true" stored="true"/>
<dynamicField name="*_ancestor_path" type="ancestor_path" indexed="true" stored="true"/>
<dynamicField name="*_txt_en_split" type="text_en_splitting" indexed="true" stored="true"/>
<dynamicField name="*_txt_sort" type="text_gen_sort" indexed="true" stored="true"/>
<dynamicField name="ignored_*" type="ignored"/>
<dynamicField name="*_txt_rev" type="text_general_rev" indexed="true" stored="true"/>
<dynamicField name="*_phon_en" type="phonetic_en" indexed="true" stored="true"/>
<dynamicField name="*_s_lower" type="lowercase" indexed="true" stored="true"/>
<dynamicField name="*_txt_cjk" type="text_cjk" indexed="true" stored="true"/>
<dynamicField name="random_*" type="random"/>
<dynamicField name="*_t_sort" type="text_gen_sort" multiValued="false" indexed="true" stored="true"/>
<dynamicField name="*_txt_en" type="text_en" indexed="true" stored="true"/>
<dynamicField name="*_txt_ar" type="text_ar" indexed="true" stored="true"/>
<dynamicField name="*_txt_bg" type="text_bg" indexed="true" stored="true"/>
<dynamicField name="*_txt_ca" type="text_ca" indexed="true" stored="true"/>
<dynamicField name="*_txt_cz" type="text_cz" indexed="true" stored="true"/>
<dynamicField name="*_txt_da" type="text_da" indexed="true" stored="true"/>
<dynamicField name="*_txt_de" type="text_de" indexed="true" stored="true"/>
<dynamicField name="*_txt_el" type="text_el" indexed="true" stored="true"/>
<dynamicField name="*_txt_es" type="text_es" indexed="true" stored="true"/>
<dynamicField name="*_txt_et" type="text_et" indexed="true" stored="true"/>
<dynamicField name="*_txt_eu" type="text_eu" indexed="true" stored="true"/>
<dynamicField name="*_txt_fa" type="text_fa" indexed="true" stored="true"/>
<dynamicField name="*_txt_fi" type="text_fi" indexed="true" stored="true"/>
<dynamicField name="*_txt_fr" type="text_fr" indexed="true" stored="true"/>
<dynamicField name="*_txt_ga" type="text_ga" indexed="true" stored="true"/>
<dynamicField name="*_txt_gl" type="text_gl" indexed="true" stored="true"/>
<dynamicField name="*_txt_hi" type="text_hi" indexed="true" stored="true"/>
<dynamicField name="*_txt_hu" type="text_hu" indexed="true" stored="true"/>
<dynamicField name="*_txt_hy" type="text_hy" indexed="true" stored="true"/>
<dynamicField name="*_txt_id" type="text_id" indexed="true" stored="true"/>
<dynamicField name="*_txt_it" type="text_it" indexed="true" stored="true"/>
<dynamicField name="*_txt_ja" type="text_ja" indexed="true" stored="true"/>
<dynamicField name="*_txt_ko" type="text_ko" indexed="true" stored="true"/>
<dynamicField name="*_txt_lv" type="text_lv" indexed="true" stored="true"/>
<dynamicField name="*_txt_nl" type="text_nl" indexed="true" stored="true"/>
<dynamicField name="*_txt_no" type="text_no" indexed="true" stored="true"/>
<dynamicField name="*_txt_pt" type="text_pt" indexed="true" stored="true"/>
<dynamicField name="*_txt_ro" type="text_ro" indexed="true" stored="true"/>
<dynamicField name="*_txt_ru" type="text_ru" indexed="true" stored="true"/>
<dynamicField name="*_txt_sv" type="text_sv" indexed="true" stored="true"/>
<dynamicField name="*_txt_th" type="text_th" indexed="true" stored="true"/>
<dynamicField name="*_txt_tr" type="text_tr" indexed="true" stored="true"/>
<dynamicField name="*_point" type="point" indexed="true" stored="true"/>
<dynamicField name="*_srpt" type="location_rpt" indexed="true" stored="true"/>
<dynamicField name="attr_*" type="text_general" multiValued="true" indexed="true" stored="true"/>
<dynamicField name="*_txt" type="text_general" indexed="true" stored="true"/>
<dynamicField name="*_str" type="strings" docValues="true" indexed="false" stored="false" useDocValuesAsStored="false"/>
<dynamicField name="*_dts" type="pdate" multiValued="true" indexed="true" stored="true"/>
<dynamicField name="*_dpf" type="delimited_payloads_float" indexed="true" stored="true"/>
<dynamicField name="*_dpi" type="delimited_payloads_int" indexed="true" stored="true"/>
<dynamicField name="*_dps" type="delimited_payloads_string" indexed="true" stored="true"/>
<dynamicField name="*_is" type="pints" indexed="true" stored="true"/>
<dynamicField name="*_ss" type="strings" indexed="true" stored="true"/>
<dynamicField name="*_ls" type="plongs" indexed="true" stored="true"/>
<dynamicField name="*_bs" type="booleans" indexed="true" stored="true"/>
<dynamicField name="*_fs" type="pfloats" indexed="true" stored="true"/>
<dynamicField name="*_ds" type="pdoubles" indexed="true" stored="true"/>
<dynamicField name="*_dt" type="pdate" indexed="true" stored="true"/>
<dynamicField name="*_ws" type="text_ws" indexed="true" stored="true"/>
<dynamicField name="*_i" type="pint" indexed="true" stored="true"/>
<dynamicField name="*_s" type="string" indexed="true" stored="true"/>
<dynamicField name="*_l" type="plong" indexed="true" stored="true"/>
<dynamicField name="*_t" type="text_general" multiValued="false" indexed="true" stored="true"/>
<dynamicField name="*_b" type="boolean" indexed="true" stored="true"/>
<dynamicField name="*_f" type="pfloat" indexed="true" stored="true"/>
<dynamicField name="*_d" type="pdouble" indexed="true" stored="true"/>
<dynamicField name="*_p" type="location" indexed="true" stored="true"/>
<copyField source="digest" dest="digest_str" maxChars="256"/>
<copyField source="title" dest="title_str" maxChars="256"/>
<copyField source="url" dest="url_str" maxChars="256"/>
<copyField source="content" dest="content_str" maxChars="256"/>
<copyField source="metatag.author" dest="metatag.author_str" maxChars="256"/>
<copyField source="metatag.version" dest="metatag.version_str" maxChars="256"/>
<copyField source="metatag.creator" dest="metatag.creator_str" maxChars="256"/>
</schema>
然后
nutch-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>http.agent.name</name>
<value>NutchSpiderTest</value>
</property>
<property>
<name>http.robots.agents</name>
<value>NutchSpiderTest,*</value>
<description>...
</description>
</property>
<property>
<name>plugin.includes</name>
<value>protocol-file|urlfilter-regex|parse-(html|tika|metatags|text)|index-(basic|anchor|metadata)|indexer-solr|scoring-opic|urlnormalizer-(pass|regex|basic)</value>
<description>...
</description>
</property>
<property>
<name>file.content.limit</name>
<value>-1</value>
<description> Needed to stop buffer overflow errors - Unable to read.....</description>
</property>
<property>
<name>file.crawl.parent</name>
<value>false</value>
<description>The crawler is not restricted to the directories that you specified in the
Urls file but it is jumping into the parent directories as well. For your own crawlings you can
change this behavior (set to false) the way that only directories beneath the directories that you specify get
crawled.</description>
</property>
<property>
<name>parser.skip.truncated</name>
<value>false</value>
<description>Boolean value for whether we should skip parsing for truncated documents. By default this
property is activated due to extremely high levels of CPU which parsing can sometimes take.
</description>
</property>
<!--
<value>protocol-file|protocol-http|protocol-httpclient|urlfilter-(regex|validator)|parse-(html|tika|text)|index-(basic|anchor)|indexer-solr|scoring-opic|urlnormalizer-(pass|regex|basic)|index-more</value>
-->
<!-- Used only if plugin parse-metatags is enabled. -->
<property>
<name>metatags.names</name>
<value>*</value>
<description> ...
</description>
</property>
<property>
<name>index.parse.md</name>
<value>metatag.description,metatag.keywords,metatag.author,metatag.channels,metatag.content_encoding,metatag.content_type,metatag.creator,metatag.dc_creator,metatag.dc_title,metatag.id,metatag.meta_author,metatag.samplerate,metatag.stream_content_type,metatag.stream_name,metatag.stream_size,metatag.stream_source_info,metatag.title,metatag.version,metatag.x_parsed_by,metatag.xmpdm_album,metatag.album,metatag.xmpdm_albumartist,metatag.albumartist,metatag.xmpdm_artist,metatag.artist,metatag.xmpdm_audiochanneltype,metatag.audiochanneltype,metatag.xmpdm_audiocompressor,metatag.audiocompressor,metatag.xmpdm_audiosamplerate,metatag.audiosamplerate,metatag.xmpdm_composer,metatag.composer,metatag.xmpdm_discnumber,metatag.discnumber,metatag.xmpdm_duration,metatag.duration,metatag.xmpdm_genre,metatag.genre,metatag.xmpdm_releasedate,metatag.releasedate,metatag.xmpdm_tracknumber,metatag.tracknumber,metatag.copyright,author,Genre</value>
<description>
Comma-separated list of keys to be taken from the parse metadata to generate fields.
Can be used e.g. for 'description' or 'keywords' provided that these values are generated
by a parser (see parse-metatags plugin)
</description>
</property>
</configuration>
运行 查询“:”的结果:
{
"responseHeader":{
...,
"params":{
"q":"*:*",
"_":"..."}},
"response":{"numFound":24,"start":0,"docs":[
{...
运行 任何其他类型查询的响应：
{
"responseHeader":{
...
"params":{
"q":"Bumblebee",
"_":"..."}},
"response":{"numFound":0,"start":0,"docs":[]
}}
此外，我要索引的数据是免费音乐存档中的各种 .mp3 文件。
编辑：我要搜索的文件如下所示：
{
"metatag.author":["A Kombi",
"A Kombi"],
"metatag.samplerate":[44100,
44100],
"title":["Plight Of The Bumblebee"],
"url":["file:/c:/Users/.../fma/fma_small/009/009476.mp3"],
"content":["Plight Of The Bumblebee\nPlight Of The Bumblebee\nA Kombi\nMusic to Drive By, track 2\n2004-09-14T00:00:00\nField Recordings\n30014.912\n"],
"metatag.creator":["A Kombi",
"A Kombi"],
"tstamp":["2020-04-02T15:26:29.507Z"],
"digest":["ddd4ab2288c5799a5646592e1a63437f"],
"boost":[0.20851442],
"id":"file:/c:/Users/.../fma/fma_small/009/009476.mp3",
"metatag.version":["MPEG 3 Layer III Version 1",
"MPEG 3 Layer III Version 1"],
"metatag.channels":[2,
2],
"_version_":1662875102548590596}
您必须设置要搜索的字段 - 除非您 have a default search field configured。在旧版本的 schema.xml 中，这可以为架构配置，但推荐的方法是在查询本身中配置它。
但是，要支持自由文本搜索，最好使用 edismax 查询解析器，方法是提供 defType=edismax，然后通过 qf (查询字段）参数。
q=Bumblebee&qf=title&defType=edismax
.. 将在 title 字段中搜索 Bumblebee。也可以给多个字段名给qf，也可以调整给每个字段的权重：
qf=title^10 content
.. 将在 title 和 content 中进行搜索，并且与 [=18] 中的命中相比，title 字段中的任何命中的权重高十倍=] 字段.
fl（字段列表）参数调整在响应中返回哪些字段，如果您只需要可用字段的一小部分（例如只是 id）以避免更大的响应，并且必须为返回的每个文档从磁盘加载所有字段值。
我是 运行 Nutch 1.16 爬虫实例和 Solr 8.3.0 版本。我已经能够在本地目录中抓取文件，并编辑 nutch-site.xml，从中提取一些元数据（尽管没有我希望的那么多）运行 bin/crawl -s urls dircrawl 2 >& dircrawl.log。然后通过 bin/nutch index dircrawl/crawldb/ -linkdb dircrawl/linkdb/ -dir dircrawl/segments/ -filter -normalize 将爬取的数据发送到 Solr，然后通过其标签存储和管理条目。
现在，运行 来自 UI 的 Solr Admin，我正在尝试搜索数据。我确保将我感兴趣的所有条目都标记为 indexed=true。但是，运行 除了 *:* returns 零结果之外的任何搜索。我已经尝试了搜索字段的所有可能组合，也没有骰子。我将 link 描述我的配置文件，首先是 solr，然后是 nutch...
schema.xml (becomes managed-schema when running it, for some reason)
<?xml version="1.0" encoding="UTF-8"?>
<schema name="nutch-crawler-indexing-config" version="1.6">
<uniqueKey>id</uniqueKey>
<fieldType name="_nest_path_" class="solr.NestPathField" omitTermFreqAndPositions="true" omitNorms="true" maxCharsForDocValues="-1" stored="false"/>
<fieldType name="ancestor_path" class="solr.TextField">
<analyzer type="index">
<tokenizer class="solr.KeywordTokenizerFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.PathHierarchyTokenizerFactory" delimiter="/"/>
</analyzer>
</fieldType>
(all fieldTypes are the default ones)
<fieldType name="text_cjk" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.CJKWidthFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.CJKBigramFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_general_rev" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.StopFilterFactory" words="stopwords.txt" ignoreCase="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.ReversedWildcardFilterFactory" maxPosQuestion="2" maxFractionAsterisk="0.33" maxPosAsterisk="3" withOriginal="true"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.SynonymGraphFilterFactory" expand="true" ignoreCase="true" synonyms="synonyms.txt"/>
<filter class="solr.StopFilterFactory" words="stopwords.txt" ignoreCase="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_gl" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_gl.txt" ignoreCase="true"/>
<filter class="solr.GalicianStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_hi" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.IndicNormalizationFilterFactory"/>
<filter class="solr.HindiNormalizationFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_hi.txt" ignoreCase="true"/>
<filter class="solr.HindiStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_hu" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_hu.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Hungarian"/>
</analyzer>
</fieldType>
<fieldType name="text_hy" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_hy.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Armenian"/>
</analyzer>
</fieldType>
<fieldType name="text_id" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_id.txt" ignoreCase="true"/>
<filter class="solr.IndonesianStemFilterFactory" stemDerivational="true"/>
</analyzer>
</fieldType>
<fieldType name="text_it" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.ElisionFilterFactory" articles="lang/contractions_it.txt" ignoreCase="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_it.txt" ignoreCase="true"/>
<filter class="solr.ItalianLightStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_ja" class="solr.TextField" autoGeneratePhraseQueries="false" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.JapaneseTokenizerFactory" mode="search"/>
<filter class="solr.JapaneseBaseFormFilterFactory"/>
<filter class="solr.JapanesePartOfSpeechStopFilterFactory" tags="lang/stoptags_ja.txt"/>
<filter class="solr.CJKWidthFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_ja.txt" ignoreCase="true"/>
<filter class="solr.JapaneseKatakanaStemFilterFactory" minimumLength="4"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_ko" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.KoreanTokenizerFactory" outputUnknownUnigrams="false" decompoundMode="discard"/>
<filter class="solr.KoreanPartOfSpeechStopFilterFactory"/>
<filter class="solr.KoreanReadingFormFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_lv" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_lv.txt" ignoreCase="true"/>
<filter class="solr.LatvianStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_nl" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_nl.txt" ignoreCase="true"/>
<filter class="solr.StemmerOverrideFilterFactory" dictionary="lang/stemdict_nl.txt" ignoreCase="false"/>
<filter class="solr.SnowballPorterFilterFactory" language="Dutch"/>
</analyzer>
</fieldType>
<fieldType name="text_no" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_no.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Norwegian"/>
</analyzer>
</fieldType>
<fieldType name="text_pt" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_pt.txt" ignoreCase="true"/>
<filter class="solr.PortugueseLightStemFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="text_ro" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_ro.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Romanian"/>
</analyzer>
</fieldType>
<fieldType name="text_ru" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_ru.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Russian"/>
</analyzer>
</fieldType>
<fieldType name="text_sv" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_sv.txt" ignoreCase="true"/>
<filter class="solr.SnowballPorterFilterFactory" language="Swedish"/>
</analyzer>
</fieldType>
<fieldType name="text_th" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.ThaiTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_th.txt" ignoreCase="true"/>
</analyzer>
</fieldType>
<fieldType name="text_tr" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.TurkishLowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" words="lang/stopwords_tr.txt" ignoreCase="false"/>
<filter class="solr.SnowballPorterFilterFactory" language="Turkish"/>
</analyzer>
</fieldType>
<fieldType name="text_ws" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
</analyzer>
</fieldType>
<field name="_nest_path_" type="_nest_path_"/>
<field name="_root_" type="string" docValues="false" indexed="true" stored="false"/>
<field name="_text_" type="text_general" multiValued="true" indexed="true" stored="false"/>
<field name="_version_" type="plong" indexed="false" stored="false"/>
<field name="boost" type="pdoubles"/>
<field name="content" type="text_general"/>
<field name="digest" type="text_general"/>
<field name="id" type="string" multiValued="false" indexed="true" required="true" stored="true"/>
<field name="metatag.author" type="text_general" indexed="true"/>
<field name="metatag.channels" type="plongs"/>
<field name="metatag.creator" type="text_general" indexed="true"/>
<field name="metatag.samplerate" type="plongs"/>
<field name="metatag.version" type="text_general"/>
<field name="title" type="text_general" indexed="true"/>
<field name="tstamp" type="pdates"/>
<field name="url" type="text_general" stored="true"/>
<dynamicField name="*_txt_en_split_tight" type="text_en_splitting_tight" indexed="true" stored="true"/>
<dynamicField name="*_descendent_path" type="descendent_path" indexed="true" stored="true"/>
<dynamicField name="*_ancestor_path" type="ancestor_path" indexed="true" stored="true"/>
<dynamicField name="*_txt_en_split" type="text_en_splitting" indexed="true" stored="true"/>
<dynamicField name="*_txt_sort" type="text_gen_sort" indexed="true" stored="true"/>
<dynamicField name="ignored_*" type="ignored"/>
<dynamicField name="*_txt_rev" type="text_general_rev" indexed="true" stored="true"/>
<dynamicField name="*_phon_en" type="phonetic_en" indexed="true" stored="true"/>
<dynamicField name="*_s_lower" type="lowercase" indexed="true" stored="true"/>
<dynamicField name="*_txt_cjk" type="text_cjk" indexed="true" stored="true"/>
<dynamicField name="random_*" type="random"/>
<dynamicField name="*_t_sort" type="text_gen_sort" multiValued="false" indexed="true" stored="true"/>
<dynamicField name="*_txt_en" type="text_en" indexed="true" stored="true"/>
<dynamicField name="*_txt_ar" type="text_ar" indexed="true" stored="true"/>
<dynamicField name="*_txt_bg" type="text_bg" indexed="true" stored="true"/>
<dynamicField name="*_txt_ca" type="text_ca" indexed="true" stored="true"/>
<dynamicField name="*_txt_cz" type="text_cz" indexed="true" stored="true"/>
<dynamicField name="*_txt_da" type="text_da" indexed="true" stored="true"/>
<dynamicField name="*_txt_de" type="text_de" indexed="true" stored="true"/>
<dynamicField name="*_txt_el" type="text_el" indexed="true" stored="true"/>
<dynamicField name="*_txt_es" type="text_es" indexed="true" stored="true"/>
<dynamicField name="*_txt_et" type="text_et" indexed="true" stored="true"/>
<dynamicField name="*_txt_eu" type="text_eu" indexed="true" stored="true"/>
<dynamicField name="*_txt_fa" type="text_fa" indexed="true" stored="true"/>
<dynamicField name="*_txt_fi" type="text_fi" indexed="true" stored="true"/>
<dynamicField name="*_txt_fr" type="text_fr" indexed="true" stored="true"/>
<dynamicField name="*_txt_ga" type="text_ga" indexed="true" stored="true"/>
<dynamicField name="*_txt_gl" type="text_gl" indexed="true" stored="true"/>
<dynamicField name="*_txt_hi" type="text_hi" indexed="true" stored="true"/>
<dynamicField name="*_txt_hu" type="text_hu" indexed="true" stored="true"/>
<dynamicField name="*_txt_hy" type="text_hy" indexed="true" stored="true"/>
<dynamicField name="*_txt_id" type="text_id" indexed="true" stored="true"/>
<dynamicField name="*_txt_it" type="text_it" indexed="true" stored="true"/>
<dynamicField name="*_txt_ja" type="text_ja" indexed="true" stored="true"/>
<dynamicField name="*_txt_ko" type="text_ko" indexed="true" stored="true"/>
<dynamicField name="*_txt_lv" type="text_lv" indexed="true" stored="true"/>
<dynamicField name="*_txt_nl" type="text_nl" indexed="true" stored="true"/>
<dynamicField name="*_txt_no" type="text_no" indexed="true" stored="true"/>
<dynamicField name="*_txt_pt" type="text_pt" indexed="true" stored="true"/>
<dynamicField name="*_txt_ro" type="text_ro" indexed="true" stored="true"/>
<dynamicField name="*_txt_ru" type="text_ru" indexed="true" stored="true"/>
<dynamicField name="*_txt_sv" type="text_sv" indexed="true" stored="true"/>
<dynamicField name="*_txt_th" type="text_th" indexed="true" stored="true"/>
<dynamicField name="*_txt_tr" type="text_tr" indexed="true" stored="true"/>
<dynamicField name="*_point" type="point" indexed="true" stored="true"/>
<dynamicField name="*_srpt" type="location_rpt" indexed="true" stored="true"/>
<dynamicField name="attr_*" type="text_general" multiValued="true" indexed="true" stored="true"/>
<dynamicField name="*_txt" type="text_general" indexed="true" stored="true"/>
<dynamicField name="*_str" type="strings" docValues="true" indexed="false" stored="false" useDocValuesAsStored="false"/>
<dynamicField name="*_dts" type="pdate" multiValued="true" indexed="true" stored="true"/>
<dynamicField name="*_dpf" type="delimited_payloads_float" indexed="true" stored="true"/>
<dynamicField name="*_dpi" type="delimited_payloads_int" indexed="true" stored="true"/>
<dynamicField name="*_dps" type="delimited_payloads_string" indexed="true" stored="true"/>
<dynamicField name="*_is" type="pints" indexed="true" stored="true"/>
<dynamicField name="*_ss" type="strings" indexed="true" stored="true"/>
<dynamicField name="*_ls" type="plongs" indexed="true" stored="true"/>
<dynamicField name="*_bs" type="booleans" indexed="true" stored="true"/>
<dynamicField name="*_fs" type="pfloats" indexed="true" stored="true"/>
<dynamicField name="*_ds" type="pdoubles" indexed="true" stored="true"/>
<dynamicField name="*_dt" type="pdate" indexed="true" stored="true"/>
<dynamicField name="*_ws" type="text_ws" indexed="true" stored="true"/>
<dynamicField name="*_i" type="pint" indexed="true" stored="true"/>
<dynamicField name="*_s" type="string" indexed="true" stored="true"/>
<dynamicField name="*_l" type="plong" indexed="true" stored="true"/>
<dynamicField name="*_t" type="text_general" multiValued="false" indexed="true" stored="true"/>
<dynamicField name="*_b" type="boolean" indexed="true" stored="true"/>
<dynamicField name="*_f" type="pfloat" indexed="true" stored="true"/>
<dynamicField name="*_d" type="pdouble" indexed="true" stored="true"/>
<dynamicField name="*_p" type="location" indexed="true" stored="true"/>
<copyField source="digest" dest="digest_str" maxChars="256"/>
<copyField source="title" dest="title_str" maxChars="256"/>
<copyField source="url" dest="url_str" maxChars="256"/>
<copyField source="content" dest="content_str" maxChars="256"/>
<copyField source="metatag.author" dest="metatag.author_str" maxChars="256"/>
<copyField source="metatag.version" dest="metatag.version_str" maxChars="256"/>
<copyField source="metatag.creator" dest="metatag.creator_str" maxChars="256"/>
</schema>
然后 nutch-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>http.agent.name</name>
<value>NutchSpiderTest</value>
</property>
<property>
<name>http.robots.agents</name>
<value>NutchSpiderTest,*</value>
<description>...
</description>
</property>
<property>
<name>plugin.includes</name>
<value>protocol-file|urlfilter-regex|parse-(html|tika|metatags|text)|index-(basic|anchor|metadata)|indexer-solr|scoring-opic|urlnormalizer-(pass|regex|basic)</value>
<description>...
</description>
</property>
<property>
<name>file.content.limit</name>
<value>-1</value>
<description> Needed to stop buffer overflow errors - Unable to read.....</description>
</property>
<property>
<name>file.crawl.parent</name>
<value>false</value>
<description>The crawler is not restricted to the directories that you specified in the
Urls file but it is jumping into the parent directories as well. For your own crawlings you can
change this behavior (set to false) the way that only directories beneath the directories that you specify get
crawled.</description>
</property>
<property>
<name>parser.skip.truncated</name>
<value>false</value>
<description>Boolean value for whether we should skip parsing for truncated documents. By default this
property is activated due to extremely high levels of CPU which parsing can sometimes take.
</description>
</property>
<!--
<value>protocol-file|protocol-http|protocol-httpclient|urlfilter-(regex|validator)|parse-(html|tika|text)|index-(basic|anchor)|indexer-solr|scoring-opic|urlnormalizer-(pass|regex|basic)|index-more</value>
-->
<!-- Used only if plugin parse-metatags is enabled. -->
<property>
<name>metatags.names</name>
<value>*</value>
<description> ...
</description>
</property>
<property>
<name>index.parse.md</name>
<value>metatag.description,metatag.keywords,metatag.author,metatag.channels,metatag.content_encoding,metatag.content_type,metatag.creator,metatag.dc_creator,metatag.dc_title,metatag.id,metatag.meta_author,metatag.samplerate,metatag.stream_content_type,metatag.stream_name,metatag.stream_size,metatag.stream_source_info,metatag.title,metatag.version,metatag.x_parsed_by,metatag.xmpdm_album,metatag.album,metatag.xmpdm_albumartist,metatag.albumartist,metatag.xmpdm_artist,metatag.artist,metatag.xmpdm_audiochanneltype,metatag.audiochanneltype,metatag.xmpdm_audiocompressor,metatag.audiocompressor,metatag.xmpdm_audiosamplerate,metatag.audiosamplerate,metatag.xmpdm_composer,metatag.composer,metatag.xmpdm_discnumber,metatag.discnumber,metatag.xmpdm_duration,metatag.duration,metatag.xmpdm_genre,metatag.genre,metatag.xmpdm_releasedate,metatag.releasedate,metatag.xmpdm_tracknumber,metatag.tracknumber,metatag.copyright,author,Genre</value>
<description>
Comma-separated list of keys to be taken from the parse metadata to generate fields.
Can be used e.g. for 'description' or 'keywords' provided that these values are generated
by a parser (see parse-metatags plugin)
</description>
</property>
</configuration>
运行 查询“:”的结果:
{
"responseHeader":{
...,
"params":{
"q":"*:*",
"_":"..."}},
"response":{"numFound":24,"start":0,"docs":[
{...
运行 任何其他类型查询的响应：
{
"responseHeader":{
...
"params":{
"q":"Bumblebee",
"_":"..."}},
"response":{"numFound":0,"start":0,"docs":[]
}}
此外，我要索引的数据是免费音乐存档中的各种 .mp3 文件。
编辑：我要搜索的文件如下所示：
{
"metatag.author":["A Kombi",
"A Kombi"],
"metatag.samplerate":[44100,
44100],
"title":["Plight Of The Bumblebee"],
"url":["file:/c:/Users/.../fma/fma_small/009/009476.mp3"],
"content":["Plight Of The Bumblebee\nPlight Of The Bumblebee\nA Kombi\nMusic to Drive By, track 2\n2004-09-14T00:00:00\nField Recordings\n30014.912\n"],
"metatag.creator":["A Kombi",
"A Kombi"],
"tstamp":["2020-04-02T15:26:29.507Z"],
"digest":["ddd4ab2288c5799a5646592e1a63437f"],
"boost":[0.20851442],
"id":"file:/c:/Users/.../fma/fma_small/009/009476.mp3",
"metatag.version":["MPEG 3 Layer III Version 1",
"MPEG 3 Layer III Version 1"],
"metatag.channels":[2,
2],
"_version_":1662875102548590596}
您必须设置要搜索的字段 - 除非您 have a default search field configured。在旧版本的 schema.xml 中，这可以为架构配置，但推荐的方法是在查询本身中配置它。
但是，要支持自由文本搜索，最好使用 edismax 查询解析器，方法是提供 defType=edismax，然后通过 qf (查询字段）参数。
q=Bumblebee&qf=title&defType=edismax
.. 将在 title 字段中搜索 Bumblebee。也可以给多个字段名给qf，也可以调整给每个字段的权重：
qf=title^10 content
.. 将在 title 和 content 中进行搜索，并且与 [=18] 中的命中相比，title 字段中的任何命中的权重高十倍=] 字段.
fl（字段列表）参数调整在响应中返回哪些字段，如果您只需要可用字段的一小部分（例如只是 id）以避免更大的响应，并且必须为返回的每个文档从磁盘加载所有字段值。