不能从MySQL数据库导入/索引数据使用到Solr dataimporthandler

当我运行完全导入我的日志得到一个错误

I am trying to import database table from my mysql database to solr Index 
through Dataimporthandler. 
I have configured all needed files as below: 

Data-config.xml 
`<dataConfig> 
<dataSource type="JdbcDataSource" 
driver="com.mysql.jdbc.Driver" 
url="jdbc:mysql://127.0.0.1:81/indcat" 
user="root" 
password=""/> 
<document> 
<entity name="enewtheses" 
pk="inf_control_no" 
query="select * from enewtheses"> 
<field column="inf_control_no" name="inf_control_no"/> 
<field column="location" name="location"/> 
<field column="date_of_entry" name="date_of_entry"/> 
<field column="language" name="language"/> 
<field column="physical_medium" name="physical_medium"/> 
<field column="type_of_material" name="type_of_material"/> 
<field column="document_number" name="document_number"/> 
<field column="title" name="title"/> 
<field column="parallel_title" name="parallel_title"/> 
<field column="other_title" name="other_title"/> 
<field column="name_of_researcher" name="name_of_researcher"/> 
<field column="name_of_guide" name="name_of_guide"/> 
<field column="name_of_corporate_body" name="name_of_corporate_body"/> 
<field column="place_and_publisher" name="place_and_publisher"/> 
<field column="date_of_publication" name="date_of_publication"/> 
<field column="date_related_to_thesis_diss" 
name="date_related_to_thesis_diss"/>  
<field column="physical_description" name="physical_description"/> 
<field column="note" name="note"/> 
<field column="abstract" name="abstract"/> 
<field column="class_scheme_notation" name="class_scheme_notation"/> 
<field column="subject_descriptor" name="subject_descriptor"/> 
<field column="reserved_for_thesis_diss" name="reserved_for_thesis_diss"/> 
<field column="accession_number" name="accession_number"/> 
<field column="uri" name="uri"/> 
<field column="flag" name="flag"/> 
<field column="bibliographical_note" name="bibliographical_note"/> 
<field column="last_updated_date" name="last_updated_date"/> 
<field column="last_updated_by" name="last_updated_by"/> 
<field column="prepared_by" name="prepared_by"/> 
<field column="bulk" name="bulk"/> 
</entity> 
</document> 
</dataConfig>`

：异常而处理：enewtheses文件：SolrInputDocument（字段： []）：组织。 apache.solr.handler.dataimport.DataImportHandlerException：无法执行查询：select * from enewtheses处理文档＃1
数据配置文件很好我检查了1000次，无法找到真正的问题在这里是什么完整堆栈如下所示：不能从MySQL数据库导入/索引数据使用到Solr dataimporthandler

at org.apache.solr.handler.dataimport.DocBuilder.execute 
(DocBuilder.java:270) 
at org.apache.solr.handler.dataimport.DataImporter.doFullImport 
(DataImporter.java:415) 
at org.apache.solr.handler.dataimport.DataImporter.runCmd 
(DataImporter.java:474) 
at org.apache.solr.handler.dataimport.DataImporter.lambda$runAsync$0 
(DataImporter.java:457) 
at java.lang.Thread.run(Unknown Source) 
Caused by: java.lang.RuntimeException: 
org.apache.solr.handler.dataimport.DataImportHandlerException: Unable to 
execute query: select * from enewtheses Processing Document # 1 
at org.apache.solr.handler.dataimport.DocBuilder.buildDocument 
(DocBuilder.java:416) 
at org.apache.solr.handler.dataimport.DocBuilder.doFullDump 
(DocBuilder.java:329) 
at org.apache.solr.handler.dataimport.DocBuilder.execute 
(DocBuilder.java:232) 
... 4 more 
Caused by: org.apache.solr.handler.dataimport.DataImportHandlerException: 
Unable to execute query: select * from enewtheses Processing Document # 1 
atorg.apache.solr.handler.dataimport.DataImportHandlerException.wrapAndThrow 
(DataImportHandlerException.java:69) 
at org.apache.solr.handler.dataimport.JdbcDataSource$ResultSetIterator. 
<init>(JdbcDataSource.java:327) 
at org.apache.solr.handler.dataimport.JdbcDataSource.createResultSetIterator 
(JdbcDataSource.java:288) 
at org.apache.solr.handler.dataimport.JdbcDataSource.getData 
(JdbcDataSource.java:283) 
at org.apache.solr.handler.dataimport.JdbcDataSource.getData 
(JdbcDataSource.java:52) 
at org.apache.solr.handler.dataimport.SqlEntityProcessor.initQuery 
(SqlEntityProcessor.java:59) 
at org.apache.solr.handler.dataimport.SqlEntityProcessor.nextRow 
(SqlEntityProcessor.java:73) 
at org.apache.solr.handler.dataimport.EntityProcessorWrapper.nextRow 
(EntityProcessorWrapper.java:267) 
atorg.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.jav 
a:475) 
at 
org.apache.solr.handler.dataimport.DocBuilder.buildDocument 
(DocBuilder.java:41) 
... 6 more 
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: 
Communications link failure 

The last packet sent successfully to the server was 0 milliseconds ago. The 
driver has not received any packets from the server. 
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) 
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) 
at java.lang.reflect.Constructor.newInstance(Unknown Source) 
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) 
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989) 
at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:632) 
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1016) 
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2198) 
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2229) 
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2024) 
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:779) 
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) 
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) 
at java.lang.reflect.Constructor.newInstance(Unknown Source) 
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) 
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389) 
atcom.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330) 
atorg.apache.solr.handler.dataimport.JdbcDataSource$1.call(JdbcDataSource.ja 
va:192) 
atorg.apache.solr.handler.dataimport.JdbcDataSource$1.call(JdbcDataSource.ja 
va:172) 
atorg.apache.solr.handler.dataimport.JdbcDataSource.getConnection(JdbcDataSo 
urce.java:528) 
at org.apache.solr.handler.dataimport.JdbcDataSource$ResultSetIterator. 
<init>(JdbcDataSource.java:317) 
... 14 more 
Caused by: java.io.EOFException: Can not read response from server. Expected 
to 
read 4 bytes, read 0 bytes before connection was unexpectedly lost. 
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011) 
at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:567) 
... 31 more

来源

2017-08-10 Agrawal Ankush

添加堆栈跟踪信息的其余部分信息 – Persimmonium

我已添加堆栈跟踪信息，请检查。 –

mysql服务器没有响应，确保你的mysql服务器启动了，你的数据库服务器配置在solr中是正确的，意思是你确定'jdbc：mysql：//127.0.0.1:81/indcat'是mysql地址，通常mysql在端口3306上运行。 –