Hi all i am new to apache solr. i have a pdf which is containing date informations like - bla bla bla 2012-11-23 11:11:12 bla bla ...- i want to get all dates from content.
i read some documentation (http://wiki.apache.org/solr/ExtractingRequestHandler) and i added date.formats to /update/extract
<requestHandler name="/update/extract"
startup="lazy"
class="solr.extraction.ExtractingRequestHandler" >
<lst name="defaults">
<!-- All the main content goes into "text"... if you need to return
the extracted text or do highlighting, use a stored field. -->
<str name="fmap.content">text</str>
<str name="lowernames">true</str>
<str name="uprefix">ignored_</str>
<!-- capture link hrefs but ignore div attributes -->
<str name="captureAttr">true</str>
<str name="fmap.a">links</str>
<str name="fmap.div">ignored_</str>
</lst>
<lst name="date.formats">
<str>yyyy-MM-dd</str>
<str>yyyy-MM-dd'T'HH:mm:ss'Z'</str>
<str>yyyy-MM-dd'T'HH:mm:ss</str>
<str>yyyy-MM-dd</str>
<str>yyyy-MM-dd hh:mm:ss</str>
<str>yyyy-MM-dd HH:mm:ss</str>
</lst>
i am adding pdf like below
curl "http://localhost:8983/solr/update/extract?literal.id=sql.txt&uprefix=attr_&fmap.content=attr_content&commit=true"&stream.file="/home/example/example.pdf"
and there is noting about date ? and content ?
Thnks
Related
I'm using Solr 6.2.1 and ExtractingRequestHandler (already included in Solr 6.2.1) to index pdf and word documents. All documents (pdf and word) are indexed with metadata (title, date, cp_revision, compagny, ...) but the content field is always empty.
According to the documentation I should have a non-empty content field : "Tika adds all the extracted text to the content field."
Has anybody know why the content field is empty ? According to this post answer it's maybe because I open my file in a non-binary mode but how to do it in binary mode ?
This is my solrconfig.xml file :
<lib dir="${solr.install.dir:../../../..}/contrib/extraction/lib" regex=".*\.jar" />
<lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-cell-\d.*\.jar" />
...
<requestHandler name="/update/extract"
startup="lazy"
class="solr.extraction.ExtractingRequestHandler" >
<lst name="defaults">
<str name="xpath">/xhtml:html/xhtml:body/descendant:node()</str>
<str name="capture">content</str>
<str name="fmap.meta">attr_meta_</str>
<str name="uprefix">attr_</str>
<str name="lowernames">true</str>
</lst>
</requestHandler>
Try indexing with the files example in the examples/files, it is designed to parse rich-text format. If that works, you can figure out what goes wrong in your definition. I suspect the xpath parameter may be wrong and returning just empty content.
I was using the solr:alpine Docker image and had the same problem. Turns out the "content" field was getting mapped to Solr's "text" field which is indexed but not stored by default. See if "fmap.content=doc_content" in Curl does the trick.
I was having a similar problem and I fixed by setting the /update/extracthandler request handler to this:
<requestHandler name="/update/extract"
startup="lazy"
class="solr.extraction.ExtractingRequestHandler" >
<lst name="defaults">
<str name="lowernames">true</str>
<str name="fmap.meta">ignored_</str>
<str name="fmap.content">content</str>
<str name="update.chain">uuid</str>
</lst>
The key part being the content where it maps the Tika obtained contents to your "content" field, which must be defined in your schema, probably as stored=true
I modified the techproducts example to learn more about synonyms. The added field has the type text2_de
<fieldType name="text2_de" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.ClassicTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" format="snowball" words="lang/stopwords_de.txt" ignoreCase="true"/>
<filter class="solr.SynonymFilterFactory" expand="true" ignoreCase="true" synonyms="index_synonyms.txt"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.ClassicTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
The index_synonyms.txt was expanded by hierarchical synonyms starting with a level for faceting according https://wiki.apache.org/solr/HierarchicalFaceting
aaafoo => aaabar
bbbfoo => bbbfoo bbbbar
cccfoo => cccbar cccbaz
fooaaa,baraaa,bazaaa
Umwelt => 1/HS , 2/HS/Bereich , 3/HS/Bereich/Umwelt
Mensch => 1/HS , 2/HS/Bereich , 3/HS/Bereich/Mensch
...
The loaded term info shows, that the analyzer works very well and found 60x "2/hs/bereich" in a document set.
loaded term info for the testfield
I'm not able to make a solr-query to find these 60 documents. The auto generated hyperlink of the loaded term info
http://localhost:8983/solr/#/test/query?q=testfield:2%2Fhs%2Fbereich
found no matches (numFound="0"):
<response>
<lst name="responseHeader">
<int name="status">0</int>
<int name="QTime">0</int>
<lst name="params">
<str name="q">testfield:2/hs/bereich</str>
<str name="indent">on</str>
<str name="wt">xml</str>
<str name="_">1463321610566</str>
</lst>
</lst>
<result name="response" numFound="0" start="0">
</result>
</response>
Please give me a tip to make an exact solr query syntax for synonyms to find these 60 documents!
Solution found: Please add wildcards in the auto generated query of the loaded term info in this example: testfield:2/hs/strahlung
<response>
<lst name="responseHeader">
<int name="status">0</int>
<int name="QTime">24</int>
<lst name="params">
<str name="q">*:*</str>
<str name="facet.field">testfield</str>
<str name="indent">on</str>
<str name="facet.prefix">3/hs/strahlung</str>
<str name="fq">testfield:*2/hs/strahlung*</str>
<str name="rows">0</str>
<str name="facet">on</str>
<str name="wt">xml</str>
<str name="_">1463590654764</str>
</lst>
</lst>
<result name="response" numFound="68" start="0">
</result>
<lst name="facet_counts">
<lst name="facet_queries"/>
<lst name="facet_fields">
<lst name="testfield">
<int name="3/hs/strahlung/neutronen">44</int>
<int name="3/hs/strahlung/wirkung">37</int>
<int name="3/hs/strahlung/strahlensschutz">34</int>
<int name="3/hs/strahlung/exposition">22</int>
<int name="3/hs/strahlung/radioaktivitaet">22</int>
<int name="3/hs/strahlung/radiologisch">12</int>
<int name="3/hs/strahlung/strahlenart">7</int>
</lst>
</lst>
<lst name="facet_ranges"/>
<lst name="facet_intervals"/>
<lst name="facet_heatmaps"/>
</lst>
</response>
In combination with the facet.prefix 3/hs/strahlung it was possible to drill down the question for the hierarchical synonyms.
Using this command
curl '://localhost:8983/solr/update/extract?literal.id=doc1&commit=true' -F "myfile=#maven_tutorial.pdf"
we can index single pdf files,by specifying our own id(DOC1), in solr. But I want to index many pdf files to solr all at once. let solr keep track of id automatically.
Please help me.
You can use UUID type field as unique key.
First define the UUID field type
<fieldType name="uuid" class="solr.UUIDField" indexed="true" />
Add your id field in the schema.xml
<field name="id" type="uuid" indexed="true" stored="true" multiValued="false"/>
Make this field as the unique key
<uniqueKey>id</uniqueKey>
In solrconfig.xml update the chain for autogenerating the id
<updateRequestProcessorChain name="uuid">
<updateRequestProcessorChain name="uuid">
<processor class="solr.UUIDUpdateProcessorFactory">
<str name="fieldName">id</str>
</processor>
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
Now attach this update chain to the request handler which is extracting the content from the pdf files that you are submitting to solr.
<requestHandler name="/update/extract"
startup="lazy"
class="solr.extraction.ExtractingRequestHandler" >
<lst name="defaults">
<str name="lowernames">true</str>
<str name="uprefix">ignored_</str>
<str name="captureAttr">true</str>
<str name="fmap.a">links</str>
<str name="fmap.div">ignored_</str>
<str name="update.chain">uuid</str>
</lst>
I am new to SOLR and I am trying to boost a result based on a parameter "country".
For example, I want to set the country to US and move all the results with US to the top.
This is how I am doing it right now but it doesn't work. :
sort=query({!qf=market v='US'}) desc
This is how the dismax request handler is set up:
<requestHandler name="dismax" class="solr.SearchHandler" >
<lst name="defaults">
<str name="defType">dismax</str>
<str name="echoParams">explicit</str>
<float name="tie">0.01</float>
<str name="qf">
text^0.5 features^1.0 name^1.2 sku^1.5 id^10.0 manu^1.1 cat^1.4
</str>
<str name="pf">
text^0.2 features^1.1 name^1.5 manu^1.4 manu_exact^1.9
</str>
<str name="bf">
popularity^0.5 recip(price,1,1000,1000)^0.3
</str>
<str name="fl">
id,name,price,score
</str>
<str name="mm">
2<-1 5<-2 6<90%
</str>
<int name="ps">100</int>
<str name="q.alt">*:*</str>
<!-- example highlighter config, enable per-query with hl=true -->
<str name="hl.fl">text features name</str>
<!-- for this field, we want no fragmenting, just highlighting -->
<str name="f.name.hl.fragsize">0</str>
<!-- instructs Solr to return the field itself if no query terms are
found -->
<str name="f.name.hl.alternateField">name</str>
<str name="f.text.hl.fragmenter">regex</str> <!-- defined below -->
</lst>
</requestHandler>
If you are using dismax/edismax query parser you can follow the way suggested by Karthik.
But, even if you use the standard query parser, you can query q=market:US^2. This should give you results having more priority where market:US.
Note: "market" is a field and "US" is it's value.
We have a requirement where we need to group our records by a particular field and take the sum of a corresponding numeric field
e.x. select userid, sum(click_count) from user_action group by userid;
We are trying to do this using apache solr and found that there were 2 ways of doing this:
Using the field collapsing feature (http://blog.jteam.nl/2009/10/20/result-grouping-field-collapsing-with-solr/) but found 2 problems with this:
1.1. This is not part of release and is available as patch so we are not sure if we can use this in production.
1.2. We do not get the sum back but individual counts and we need to sum it at the client side.
Using the Stats Component along with faceted search (http://wiki.apache.org/solr/StatsComponent). This meets our requirement but it is not fast enough for very large data sets.
I just wanted to know if anybody knows of any other way to achieve this.
Appreciate any help.
Thanks,
Terance.
Why instead don't you use the StatsComponent? - Available from Solr 1.4 up.
$ curl 'http://search/select?q=*&rows=0&stats=on&stats.field=click_count' |
tidy -xml -indent -quiet -wrap 2000000
<?xml version="1.0" encoding="utf-8"?>
<response>
<lst name="responseHeader">
<int name="status">0</int>
<int name="QTime">17</int>
<lst name="params">
<str name="q">*</str>
<str name="stats">on</str>
<arr name="stats.field">
<str>click_count</str>
</arr>
<str name="rows">0</str>
</lst>
</lst>
<result name="response" numFound="577" start="0" />
<lst name="stats">
<lst name="stats_fields">
<lst name="click_count">
<double name="min">1.0</double>
<double name="max">3487.0</double>
<double name="sum">47912.0</double>
<long name="count">577</long>
<long name="missing">0</long>
<double name="sumOfSquares">4.0208702E7</double>
<double name="mean">83.0363951473137</double>
<double name="stddev">250.79824725438448</double>
</lst>
</lst>
</lst>
</response>