How could I properly configure Solr to index my Oracle database? -


i've been trying configure solr work oracle 11.2 database datasource nothing works. have thoroughly explored documentations , seems lack , working guide.

for simple scenario, want index single table [topic]

the structure of table topic shown below:

  • id (autonumber)
  • topic (varchar 50) i want index this
  • info (varchar 255) i want index this

my solr configurations (so far)

i have added new collection oracle, name "oracle_test". configure folder structure guided official documentation collection follows:

  • ~/solr/server/solr/
    • oracle_test
      • conf
        • data-config.xml
        • elevate.xml
        • schema.xml
        • solrconfig.xml

data-config.xml

i have configured working datasource connection string oracle, specified query topic table, fields want solr up.

<dataconfig>     <datasource name="jdbc" driver="oracle.jdbc.driver.oracledriver" url="jdbc:oracle:system@//127.0.0.1:1521/orcl/" user="system" password="*****"/>     <document>         <entity name="help" query="select \"topic\",\"info\" \"topic\"" datasource="jdbc">             <field column="topic" name="topic"/>             <field column="info" name="info"/>         </entity>     </document> </dataconfig>

schema.xml

i put definitions of fields here.

<schema name="oracle_help" version="1.1">     <fieldtype name="string" class="solr.strfield"/>     <field name="topic" type="string" indexed="true" stored="true" multivalued="false"/>     <defaultsearchfield>info</defaultsearchfield>     <field name="topic" type="string" indexed="true" stored="true"/>     <field name="info" type="string" indexed="true" stored="true"/> </schema>

solrconfig.xml

since configuration file big , includes everything. take excerpts configuration file related oracle configuration follows:

i specify field (topic) want index:

<initparams path="/update/**,/query,/select,/tvrh,/elevate,/spell,/browse">     <lst name="defaults">        <str name="df">topic</str>     </lst> </initparams>

under processor section, have 1 default field type defined string:

<processor class="solr.addschemafieldsupdateprocessorfactory">   <str name="defaultfieldtype">strings</str>   ... </processor>

then tried importing datasource via solr admin

using "dataimport" on solr admin dashboard, once execute command, got response i'm not sure whether correctly indexed oracle table:

{     "responseheader": {     "status": 0,     "qtime": 1 }, "initargs": [     "defaults",     [         "config",         "data-config.xml"     ] ], "command": "status", "status": "idle", "importresponse": "", "statusmessages": {} }

weird thing is, status indicated "idle".

i tried execute search query, returns error

use search query "test" follows:

$> curl http://localhost:8983/solr/oracle_test/select?q=test&wt=json&indent=true

solr returns me "undefined field topic".

{     "responseheader": {     "status": 400,     "qtime": 1,     "params": {         "q": "called",         "indent": "true",         "wt": "json",         "_": "1434341618019"     } }, "error": {    "msg": "undefined field topic",    "code": 400   } }

but, shown @ earlier part, have defined field "topic" in schema.xml. seems lack of documentation or guide on solr official sites , tried doing research on internet, i've got nothing @ all.

can might familiar solr - oracle integration please me figure out? suggestion?

i think solr server should generate error upon start-up or when trying access index uses schema.xml have defined. please have logs of solr server.

it has formal errors, these prevent index starting , in turn dih have defined running

  • <types /> missing around field types
  • <fields /> missing around fields
  • <defaultsearchfield /> missplaced inside fields
  • you have defined field named topic twice

the structure of schema.xml documented in solr's wiki. valid version of schema.xml sample below. 

<schema name="oracle_help" version="1.1">   <types>     <fieldtype name="string" class="solr.strfield"/>   </types>    <defaultsearchfield>info</defaultsearchfield>    <fields>     <field name="topic" type="string" indexed="true" stored="true" multivalued="false"/>     <field name="info" type="string" indexed="true" stored="true"/>   </fields> </schema>

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