用solr DIH 实现mysql 数据定时,增量同步到solr

基础环境：

（二）设置增量导入为定时执行的任务：
很多人利用Windows计划任务，或者Linux的Cron来定期访问增量导入的连接来完成定时增量导入的功能，这其实也是可以的，而且应该没什么问题。
但是更方便，更加与Solr本身集成度高的是利用其自身的定时增量导入功能。
1、下载apache-solr-dataimportscheduler-1.0.jar放到Tomcat的webapps的solr目录的WEB-INF的lib目录下：

下载地址：http://yunpan.cn/cdIpMthFdFcgn （提取码：5a1c）

由于我采用的jetty+zk配置

我将apache-solr-dataimportscheduler-1.0.jar 放在solr-4.10.4/example/solr-webapp/webapp/WEB-INF/lib目录下

2、部分配置文件： db-data-config.xml

文件目录位置：/solr-4.10.4/example/solr/collection1/conf

         <entity name="bns_sentence" pk="id"
                query ="select id, uid, createname, createheadimg, wid, word, content, articlenum, state, feel, forwardnum, supportnum, updatetime, createtime from bns_sentence"
                deltaImportQuery ="select id, uid, createname, createheadimg, wid, word, content, articlenum, state, feel, forwardnum, supportnum, updatetime, createtime from bns_sentence where id='${dataimporter.delta.ID}'"
                deltaQuery ="select id, uid, createname, createheadimg, wid, word, content, articlenum, state, feel, forwardnum, supportnum, updatetime, createtime from bns_sentence where  updatetime  '${dataimporter.last_index_time}'">
                <field column="id" name="id"/>
                <field column="uid" name="uid"/>
        <field column="createname" name="createname"/>
        <field column="createheadimg" name="createheadimg"/>
        <field column="wid" name="wid"/>
        <field column="word" name="word"/>
        <field column="content" name="content"/>
        <field column="articlenum" name="articlenum"/>
        <field column="state" name="state"/>
        <field column="feel" name="feel"/>
        <field column="forwardnum" name="forwardnum"/>
        <field column="supportnum" name="supportnum"/>
        <field column="updatetime" name="updatetime"/>
        <field column="createtime" name="createtime"/>

3、配置文件头尾

<?xml version="1.0" encoding="UTF-8" ?>
<dataConfig>
    <dataSource driver="com.mysql.jdbc.Driver"    
                    url="jdbc:mysql://ip:3306/database"     
                                    user="username"     
                                     password="password"   />
                                                                   <span style="color:#FF0000;"> batchSize="-1"</span>/><!-- 注意：mysql中一定要batchSize="-1" 否则会报异常-->
    <document>
         

       <entity name="tablename" pk="id"  
                 
                      </entity>
     
        </document>
       <!--deltaQuery="select id, content, avgfeel, state, sentencenum, articlenum,updatetime, createtime  from bns_word where  to_char(updatetime,'yyyy-mm-dd hh24:mi:ss')> '${dataimporter.last_index_time}'"-->

 </dataConfig>

4、修改配置文件dataimport.properties

我是放在/solr-4.10.4/example/solr/conf 目录下

配置文件如下

#################################################
#                                               #
#       dataimport scheduler properties         #
#                                               #
#################################################

#  to sync or not to sync
#  1 - active; anything else - inactive
syncEnabled=1

#  which cores to schedule
#  in a multi-core environment you can decide which cores you want syncronized
#  leave empty or comment it out if using single-core deployment
syncCores=game,resource

#  solr server name or IP address
#  [defaults to localhost if empty]
server=ip

#  solr server port
#  [defaults to 80 if empty]
port=8983

#  application name/context
#  [defaults to current ServletContextListener's context (app) name]
webapp=solr

#  URL params [mandatory]
#  remainder of URL
params=/dataimport?command=delta-import&clean=true&commit=true  

#  schedule interval
#  number of minutes between two runs
#  [defaults to 30 if empty]
interval=1

#  重做索引的时间间隔，单位分钟，默认7200，即1天; 
#  为空,为0,或者注释掉:表示永不重做索引
reBuildIndexInterval=7200

#  重做索引的参数
reBuildIndexParams=/dataimport?command=full-import&clean=true&commit=true 

#  重做索引时间间隔的计时开始时间，第一次真正执行的时间=reBuildIndexBeginTime+reBuildIndexInterval*60*1000；
#  两种格式：2012-04-11 03:10:00 或者  03:10:00，后一种会自动补全日期部分为服务启动时的日期
reBuildIndexBeginTime=03:10:00

5、第一次启动会出现：

 sorry, no dataimport-handler defined!

 解决办法

找到配置文件example/solr/collection1/conf 下的solrconfig.xml添加

 <requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImportHandler">
                      <lst name="defaults">
                       <str name="config">db-data-config.xml</str>
                        </lst>
             </requestHandler>

6、启动后报错信息：

- 2015-08-19 23:31:13.591; org.apache.solr.handler.dataimport.scheduler.BaseTimerTask; [game] <index update process> Response message                     Not Found
INFO  - 2015-08-19 23:31:13.592; org.apache.solr.handler.dataimport.scheduler.BaseTimerTask; [game] <index update process> Response code                        404
INFO  - 2015-08-19 23:31:13.592; org.apache.solr.core.SolrResourceLoader; JNDI not configured for solr (NoInitialContextEx)
INFO  - 2015-08-19 23:31:13.593; org.apache.solr.core.SolrResourceLoader; solr home defaulted to 'solr/' (could not find system property or JNDI)
INFO  - 2015-08-19 23:31:13.593; org.apache.solr.core.SolrResourceLoader; new SolrResourceLoader for deduced Solr Home: 'solr/'
INFO  - 2015-08-19 23:31:13.609; org.apache.solr.handler.dataimport.scheduler.SolrDataImportProperties; Instance dir = solr/

错误原因：

 改成启动方式：

 java -Dsolr.solr.home=/home/hadoop/cloudsolr/solr-4.10.4/example -DzkHost=192.168.0.157:2181,192.168.0.158:2181,192.168.0.159:2181 -DnumShards=2 -Dbootstrap_confdir=./solr/collection1/conf -Dcollection.configName=myconf -jar start.jar
 7、错误信息如下：

1045 [main] ERROR org.apache.solr.handler.dataimport.scheduler.SolrDataImportProperties  – Error locating DataImportScheduler dataimport.properties file
java.io.FileNotFoundException: /home/hadoop/cloudsolr/solr-4.10.4/example/conf/dataimport.properties (No such file or directory)

将配置文件dataimport.properties移动对应的目录

8、错误信息：

ter  – Could not start Solr. Check solr/home property and the logs
1146 [main] ERROR org.apache.solr.core.SolrCore  – null:org.apache.solr.common.SolrException: solr.xml does not exist in /home/hadoop/cloudsolr/solr-4.10.4/example/solr.xml cannot start Solr
    at org.apache.solr.core.ConfigSolr.fromFile(ConfigSolr.java:62)

将对应的solr.xml 复制到对应的目录即可

9、错误信息：

in] ERROR org.apache.solr.servlet.SolrDispatchFilter  – Could not start Solr. Check solr/home property and the logs
3230 [main] ERROR org.apache.solr.core.SolrCore  – null:org.apache.solr.common.SolrException: Found multiple cores with the name [collection1], with instancedirs [/home/hadoop/cloudsolr/solr-4.10.4/example/example-schemaless/solr/collection1/] and [/home/hadoop/cloudsolr/solr-4.10.4/example/solr/collection1/]
解决办法：example-schemaless/solr/collection1 将例子的core重新命名为其他的名字，并且在core.properties 也修改即可
10、在执行的时候另一个错误:
dding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-http-8.1.10.v20130312.jar' to classloader
481115 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.SolrDataImportProperties  – Instance dir = /home/hadoop/cloudsolr/solr-4.10.4/example/
481116 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Disconnected from server        ip
481117 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Process ended at ................ 20.08.2015 01:37:00 595
541047 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [game] <index update process> Process started at .............. 20.08.2015 01:38:00 525
541049 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [game] <index update process> Full URL                http://ip:8983/solr/game/dataimport?command=delta-import&clean=true&commit=true
541057 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [game] <index update process> Response message            Not Found
541058 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [game] <index update process> Response code            404
541058 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – JNDI not configured for solr (NoInitialContextEx)
541059 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – using system property solr.solr.home: /home/hadoop/cloudsolr/solr-4.10.4/example
541059 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – new SolrResourceLoader for deduced Solr Home: '/home/hadoop/cloudsolr/solr-4.10.4/example/'
541061 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-deploy-8.1.10.v20130312.jar' to classloader
541061 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-xml-8.1.10.v20130312.jar' to classloader
541062 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-servlet-8.1.10.v20130312.jar' to classloader
541062 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-io-8.1.10.v20130312.jar' to classloader
541063 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-util-8.1.10.v20130312.jar' to classloader
541063 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-security-8.1.10.v20130312.jar' to classloader
541064 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-server-8.1.10.v20130312.jar' to classloader
541065 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-continuation-8.1.10.v20130312.jar' to classloader
541065 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/ext/' to classloader
541066 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-webapp-8.1.10.v20130312.jar' to classloader
541067 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/servlet-api-3.0.jar' to classloader
541067 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-jmx-8.1.10.v20130312.jar' to classloader
541068 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-http-8.1.10.v20130312.jar' to classloader
541085 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.SolrDataImportProperties  – Instance dir = /home/hadoop/cloudsolr/solr-4.10.4/example/
541085 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [game] <index update process> Disconnected from server        ip
541086 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [game] <index update process> Process ended at ................ 20.08.2015 01:38:00 564
541086 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Process started at .............. 20.08.2015 01:38:00 564
541087 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Full URL                http://ip:8983/solr/resource/dataimport?command=delta-import&clean=true&commit=true
541091 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Response message            Not Found
541091 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Response code            404
541091 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – JNDI not configured for solr (NoInitialContextEx)
541091 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – using system property solr.solr.home: /home/hadoop/cloudsolr/solr-4.10.4/example
541091 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – new SolrResourceLoader for deduced Solr Home: '/home/hadoop/cloudsolr/solr-4.10.4/example/'
541092 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-deploy-8.1.10.v20130312.jar' to classloader
541092 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-xml-8.1.10.v20130312.jar' to classloader
541092 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-servlet-8.1.10.v20130312.jar' to classloader
541092 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-io-8.1.10.v20130312.jar' to classloader
541093 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-util-8.1.10.v20130312.jar' to classloader
541093 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-security-8.1.10.v20130312.jar' to classloader
541093 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-server-8.1.10.v20130312.jar' to classloader
541093 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-continuation-8.1.10.v20130312.jar' to classloader
541094 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/ext/' to classloader
541094 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-webapp-8.1.10.v20130312.jar' to classloader
541094 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/servlet-api-3.0.jar' to classloader
541094 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-jmx-8.1.10.v20130312.jar' to classloader
541094 [Timer-0] INFO  org.apache.solr.core.SolrResourceLoader  – Adding 'file:/home/hadoop/cloudsolr/solr-4.10.4/example/lib/jetty-http-8.1.10.v20130312.jar' to classloader
541106 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.SolrDataImportProperties  – Instance dir = /home/hadoop/cloudsolr/solr-4.10.4/example/
541106 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Disconnected from server       ip
541111 [Timer-0] INFO  org.apache.solr.handler.dataimport.scheduler.BaseTimerTask  – [resource] <index update process> Process ended at ................ 20.08.2015 01:38:00 589

问题原因：

solr版本不支持

解决办法：

 jar包换1.1版本。

 

 错误原因：

deltaQuery="select id, content, avgfeel, state, sentencenum, articlenum,updatetime, createtime  from bns_word  where  updatetime  &gt;=  '${dataimporter.last_index_time}'">

 在xml 中定义大于号小于号:

原符号   <    <=    >    >=     &      '       "
替换符号 &lt; &lt;= &gt; &gt;= &amp; &apos; &quot;

11、导入数据后出现控制台有出现导入数据成功，但是solr查询不到数据

错误原因:

db-data-config.xml
配置文件中
         <entity name="bns_sentence" pk="id"
                query ="select id, uid, createname, createheadimg, wid, word, content, articlenum, state, feel, forwardnum, supportnum, updatetime, createtime from bns_sentence"
                deltaImportQuery ="select id, uid, createname, createheadimg, wid, word, content, articlenum, state, feel, forwardnum, supportnum, updatetime, createtime from bns_sentence where id='${dataimporter.delta.id}'"
 
dataimporter.delta.id 需要改为小写的id

12 、配置完启动出错：

48 [coreLoadExecutor-5-thread-1] ERROR org.apache.solr.core.CoreContainer  ? Error creating core [collection1]: RequestHandler init failure
org.apache.solr.common.SolrException: RequestHandler init failure
	at org.apache.solr.core.SolrCore.<init>(SolrCore.java:881)
	at org.apache.solr.core.SolrCore.<init>(SolrCore.java:654)
	at org.apache.solr.core.CoreContainer.create(CoreContainer.java:491)
	at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:255)
	at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:249)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.solr.common.SolrException: RequestHandler init failure
	at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:172)
	at org.apache.solr.core.SolrCore.<init>(SolrCore.java:800)
	... 8 more
Caused by: org.apache.solr.common.SolrException: Error loading class 'org.apache.solr.handler.dataimport.DataImportHandler'
	at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:490)
	at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:421)
	at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:551)
	at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:624)
	at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:158)
	... 9 more
Caused by: java.lang.ClassNotFoundException: org.apache.solr.handler.dataimport.DataImportHandler
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:274)
	at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:474)
	... 13 more

 错误原因：

解决办法：

软件包下载地址：http://yunpan.cn/cHTNPkchYSCrX （提取码：e5ee）

将solr-4.10.4/dist下的
solr-dataimporthandler-4.10.4.jar
solr-dataimporthandler-extras-4.10.4.jar
考到solr web的lib目录下，然后重启即可

[root@devnote ~]# cp solr-4.5.1/dist/solr-dataimporthandler-*.jar /opt/tomcat/webapps/solr/WEB-INF/lib/

13 、 solr 清空所有数据：

http://ip:port/solr/corename/update/?stream.body=%3Cdelete%3E%3Cquery%3E*:*%3C/query%3E%3C/delete%3E&stream.contentType=text/xml;charset=utf-8&commit=true

参考地址：http://josh-persistence.iteye.com/blog/2017155

14、如果是solr和tomcat 集成，参考http://www.aboutyun.com/thread-10496-1-1.html， 这步是必须的

、修改solr的WEB-INF目录下面的web.xml文件：
为<web-app>元素添加一个子元素

    <listener>   
        <listener-class>   
                org.apache.solr.handler.dataimport.scheduler.ApplicationListener   
        </listener-class>   
      </listener>

 

 15、如果出现：Unsupported Media Type 错误提示，数据增量导入失败

错误原因： 我部署的是在tomcat 下 的solr /WEB-INF/lib 下将apache-solr-dataimportscheduler-1.0.jar 包删除

解决办法： 将/WEB-INF/lib 下将apache-solr-dataimportscheduler-1.0.jar 删除， 替换上solr-dataimportscheduler-1.1.jar
软件包下载地址：http://yunpan.cn/cHTNPkchYSCrX （提取码：e5ee）

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原文地址：https://www.cnblogs.com/zhanggl/p/4744199.html