SolrCloud+tomcat7+zookeeper集群配置

时间 2019-11-16

标签 solrcloud+tomcat7+zookeeper solrcloud tomcat zookeeper 集群配置栏目云服务繁體版

原文原文链接

solrCloud的主要功能:

主要功能包括强大的全文搜索、点击显示、面搜索、动态聚类、数据库集成、丰富的文件（如Word，PDF）处理，和空间搜索,并且它具备高度的可扩展性，提供容错的分布式搜索和索引。java

1）集中式的配置信息

         2）自动容错

         3）近实时搜索

         4）查询时自动负载均衡

图1. Collection大体结构图web

![osjp-vertx-fig1-thumb-100159570-orig](http://7xvmgi.com1.z0.glb.clouddn.com/1.png)<br>

一、下载https://zookeeper.apache.org/ 
    二、下载http://lucene.apache.org/solr/
    三、下载http://tomcat.apache.org/

下面我就开始学习之旅：

首先复制三个tomcat例如:
tomcat-server_1  端口：8080  
tomcat-server_2  端口：8090  
tomcat-server_3  端口：8100

1、在分别复制solr-4.7.0下面的example/webapps的solr.war解压复制到tomcat-server_一、tomcat-server_二、tomcat-server_3的webapp下面为solr，分别建立三个文件夹分别为solr_home_一、solr_home_二、solr_home_3做为存放solr的数据。将solr-4.7.0下面example/solr/分别复制到solr_home_一、solr_home_二、solr_home_3下面。数据库

图2:apache

2、分别修改solr_home_一、solr_home_二、solr_home_3下面的solr.xml。bootstrap

<solr>
            <solrcloud>
            <str name="host">${host:}</str>
            <int name="hostPort">${jetty.port:8080}</int>//端口分别对应tomcat的端口
            <str name="hostContext">${hostContext:solr}</str>
            <int name="zkClientTimeout">${zkClientTimeout:30000}</int>
            <bool name="genericCoreNodeNames">${genericCoreNodeNames:true}</bool>
            </solrcloud>
          <shardHandlerFactory name="shardHandlerFactory"
            class="HttpShardHandlerFactory">
          <int name="socketTimeout">${socketTimeout:0}</int>
          <int name="connTimeout">${connTimeout:0}</int>
          </shardHandlerFactory>
    </solr>
    其余solr.xml同理。

3、分别进入tomcat-server_一、tomcat-server_二、tomcat-server_3 下面的webapp下面的solr，而后去改WEB-INF下的web.xml，分别为下面的清单：tomcat

<env-entry>
               <env-entry-name>solr/home</env-entry-name>
               <env-entry-value>D:/solrCloud/solr_home_1</env-entry-value>//定义solr索引所存的地址
               <env-entry-type>java.lang.String</env-entry-type>
        </env-entry>

        <env-entry>
               <env-entry-name>solr/home</env-entry-name>
               <env-entry-value>D:/solrCloud/solr_home_2</env-entry-value>//定义solr索引所存的地址
               <env-entry-type>java.lang.String</env-entry-type>
        </env-entry>   

        <env-entry>
               <env-entry-name>solr/home</env-entry-name>
               <env-entry-value>D:/solrCloud/solr_home_3</env-entry-value>//定义solr索引所存的地址
               <env-entry-type>java.lang.String</env-entry-type>
        </env-entry>

4、分别在tomcat-server_一、tomcat-server_二、tomcat-server_3的bin下面的catalina.bat的添加app

set java_opts=-Dsolr.home=d:/solrCloud/solr_home_1 -Dbootstrap_confdir=D:/solrCloud/solr_home_1/collection1/conf -Dcollection.configName=myconf -DnumShards=2 -DzkHost=127.0.0.1:2181
    set JAVA_OPTS=-Dsolr.home=d:/solrCloud/solr_home_2 -DzkHost=127.0.0.1:2181
    set JAVA_OPTS=-Dsolr.home=d:/solrCloud/solr_home_3 -DzkHost=127.0.0.1:2181

5、复制三个zoo例如:负载均衡

zk-server_1  端口：2181
        zk-server_2  端口：2182
        zk-server_3  端口：2183
        在zk-server_一、zk-server_二、zk-server_3下面分别创建两个文件夹为data和logs用来存储数据和日志。
        分别再data目录下面建立myid，里面分别写一、二、3。
        配置D:\solrCloud\zk-server_1\conf\zoo.cfg以下:
        dataDir=D:/solrCloud/zk-server_1/data
        dataLogDir=D:/solrCloud/zk-server_1/logs
        clientPort=2181
        server.1=127.0.0.1:2888:3888
        server.2=127.0.0.1:2889:3889
        server.3=127.0.0.1:2890:3890
        其余两个配置如同上面配置。

图3:webapp

下面咱们启动zk_server一、zk_server二、zk_server3.以下图:

图4:socket

启动时，第一个报错是由于找不到其余两个zk，才会报错。这都是没关系的，三个启动好了就不会报错了。

下面咱们在启动tomcat-server_一、tomcat-server_二、tomcat-server_3。
图5:

图6:

建立

http://127.0.0.1:8080/solr/admin/collections?action=CREATE&name=collection1&numShards=3&replicationFactor=2&maxShardsPerNode=2&collection.configName=myconf

从新加载接口

http://127.0.0.1:8080/solr/admin/collections?action=RELOAD&name=collection1

删除

http://127.0.0.1:8080s/solr/admin/collections?action=DELETE&name=collection1

清单1. SolrCloud.java

import java.io.IOException;
    import java.util.ArrayList;
    import java.util.Collection;
    import java.util.Map;
    import org.apache.solr.client.solrj.SolrQuery;
    import org.apache.solr.client.solrj.SolrServer;
    import org.apache.solr.client.solrj.SolrServerException;
    import org.apache.solr.client.solrj.impl.CloudSolrServer;
    import org.apache.solr.client.solrj.response.QueryResponse;
    import org.apache.solr.common.SolrDocument;
    import org.apache.solr.common.SolrDocumentList;
    import org.apache.solr.common.SolrInputDocument;
    public class SolrCloud {
            private static CloudSolrServer cloudSolrServer;
            private static synchronized CloudSolrServer getCloudSolrServer(final String zkHost) {
            if (cloudSolrServer == null) {
                try {
                        cloudSolrServer = new CloudSolrServer(zkHost);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
            }

        return cloudSolrServer;
    }
    //添加索引
    private void addIndex(SolrServer solrServer) {
        try {
            SolrInputDocument doc1 = new SolrInputDocument();
            doc1.addField("id", "421245251215121452521251");
            doc1.addField("title", "张三");
            SolrInputDocument doc2 = new SolrInputDocument();
            doc2.addField("id", "4224558524254245848524243");
            doc2.addField("title", "李四");

            SolrInputDocument doc3 = new SolrInputDocument();
            doc3.addField("id", "4543543458643541324153453");
            doc3.addField("title", "王五");

            Collection<SolrInputDocument> docs = new ArrayList<SolrInputDocument>();
            docs.add(doc1);
            docs.add(doc2);
            docs.add(doc3);

            solrServer.add(docs);
            solrServer.commit();

        } catch (SolrServerException e) {
            System.out.println("Add docs Exception !!!");
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            System.out.println("Unknowned Exception!!!!!");
            e.printStackTrace();
        }

    }
   // 搜索
    public void search(SolrServer solrServer, String String) {
        SolrQuery query = new SolrQuery();
        query.setQuery(String);
        try {
            QueryResponse response = solrServer.query(query);
            SolrDocumentList docs = response.getResults();
            for (SolrDocument doc : docs) {
                for (Map.Entry<String, Object> entry : doc) {
                    System.out.println(entry.getKey()+"="+entry.getValue());
                } 
            }
        } catch (SolrServerException e) {
            e.printStackTrace();
        } catch (Exception e) {
            System.out.println("Unknowned Exception!!!!");
            e.printStackTrace();
        }
    }
    //删除
    public void deleteAllIndex(SolrServer solrServer) {
        try {
            solrServer.deleteByQuery("*:*");// delete everything!
            solrServer.commit();
        } catch (SolrServerException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            System.out.println("Unknowned Exception !!!!");
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        final String zkHost = "127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183";
        final String defaultCollection = "collection1";
        final int zkClientTimeout = 20000;
        final int zkConnectTimeout = 1000;

        CloudSolrServer cloudSolrServer = getCloudSolrServer(zkHost);
        System.out.println("The Cloud SolrServer Instance has benn created!");
        cloudSolrServer.setDefaultCollection(defaultCollection);
        cloudSolrServer.setZkClientTimeout(zkClientTimeout);
        cloudSolrServer.setZkConnectTimeout(zkConnectTimeout);
        cloudSolrServer.connect();
        System.out.println("The cloud Server has been connected !!!!");
        SolrCloud test = new SolrCloud();
         test.addIndex(cloudSolrServer);
         test.search(cloudSolrServer, "id:*");
         test.deleteAllIndex(cloudSolrServer);
         test.search(cloudSolrServer, "id:*");
         System.out.println("hashCode"+test.hashCode());
         cloudSolrServer.shutdown();
    }
}