使用intellij idea 运行nutch 2.2.1 + hbase 0.90.4 + elasticsearch 0.90.5

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使用intellij idea 运行nutch 2.2.1 + hbase 0.90.4 + elasticsearch 0.90.5

2018年04月08日 ⁄ 综合 ⁄ 共 6112字 ⁄ 字号小中大 ⁄ 评论关闭

使用https://github.com/apache/nutch.git导入nutch项目到intellij

配置ivy.xml和conf下的gora.properties、nutch-site.xml

修改ivy/ivy.xml

修改elasticsearch版本

    <dependency org="org.elasticsearch" name="elasticsearch" rev="0.90.5" conf="*->default"/>

去掉如下内容注解

    <dependency org="org.apache.gora" name="gora-hbase" rev="0.3" conf="*->default" />

修改软件版本，从1.2.15改成1.2.16，解决部分包导入失败问题

     <dependency org="log4j" name="log4j" rev="1.2.16" conf="*->master" />

修改gora.properties

注掉如下几行

     #gora.sqlstore.jdbc.driver=org.hsqldb.jdbc.JDBCDriver
     #gora.sqlstore.jdbc.url=jdbc:hsqldb:hsql://localhost/nutchtest
     #gora.sqlstore.jdbc.user=sa
     #gora.sqlstore.jdbc.password=

添加一行

     gora.datastore.default=org.apache.gora.hbase.store.HBaseStore

修改nutch-site.xml，增加如下配置项

    <property>
        <name>storage.data.store.class</name>
        <value>org.apache.gora.hbase.store.HBaseStore</value>
    </property>
    <property>
        <name>http.agent.name</name>
        <value>NutchCrawler</value>
    </property>
    <property>
        <name>parser.character.encoding.default</name>
        <value>utf-8</value>
    </property>
    <property>
        <name>http.accept.language</name>
        <value>ja-jp, en-us, zh-cn,en-gb,en;q=0.7,*;q=0.3</value>
    </property>
    <property>  
        <name>generate.batch.id</name>  
        <value>1</value>  
    </property>

增加hbase配置文件hbase-site.xml到nutch/conf中

<configuration>
    <property>
        <name>hbase.rootdir</name>
        <value>file:///data/hbase</value>
    </property>
    <property>
        <name>hbase.zookeeper.property.dataDir</name>
        <value>/data/zookeeper</value>
    </property>
</configuration>

修改nutch/src/bin/nutch，文件开头增加

NUTCH_JAVA_HOME=/usr/local/jdk

修改src下org.apache.nutch.indexer.elastic.ElasticWriter 109行，使支持es0.90.5

item.isFailed()

删除nutch/conf下所有template文件

编译nutch

ant clean

ant runtime

修改nutch-site.xml

    <property>
        <name>plugin.folders</name>
        <value>/home/eryk/workspace/nutch/runtime/local/plugins</value>
    </property>

设置intelil，增加nutch/conf和nutch/runtime/lib到classpath

File->Project Structure->Dependencies 增加nutch/conf和nutch/runtime/local/lib目录

增加pom.xml的依赖库

            <dependency>
                <groupId>net.sourceforge.nekohtml</groupId>
                <artifactId>nekohtml</artifactId>
                <version>1.9.15</version>
            </dependency>
            <dependency>
                <groupId>org.ccil.cowan.tagsoup</groupId>
                <artifactId>tagsoup</artifactId>
                <version>1.2</version>
            </dependency>
            <dependency>
                <groupId>rome</groupId>
                <artifactId>rome</artifactId>
                <version>1.0</version>
            </dependency>

修改pom.xml中es版本

    <dependency>
         <groupId>org.elasticsearch</groupId>
         <artifactId>elasticsearch</artifactId>
         <version>0.90.5</version>
         <optional>true</optional>
    </dependency>

修正依赖库的版本冲突

     <dependency>
         <groupId>org.restlet.jse</groupId>
         <artifactId>org.restlet.ext.jackson</artifactId>
         <version>2.0.5</version>
                    <exclusions>
                        <exclusion>
                            <artifactId>jackson-core-asl</artifactId>
                            <groupId>org.codehaus.jackson</groupId>
                        </exclusion>
                        <exclusion>
                            <artifactId>jackson-mapper-asl</artifactId>
                            <groupId>org.codehaus.jackson</groupId>
                        </exclusion>
                    </exclusions>
                    <optional>true</optional>
      </dependency>
          <dependency>
                        <groupId>org.apache.gora</groupId>
                        <artifactId>gora-core</artifactId>
                        <version>0.3</version>
                    <exclusions>
                        <exclusion>
                            <artifactId>jackson-mapper-asl</artifactId>
                            <groupId>org.codehaus.jackson</groupId>
                        </exclusion>
                    </exclusions>
                    <optional>true</optional>
                </dependency>

修改src下org.apache.nutch.crawl.Crawler代码，增加-elasticindex和-batchId参数

     Map<String,Object> argMap = ToolUtil.toArgMap(
        Nutch.ARG_THREADS, threads,
        Nutch.ARG_DEPTH, depth,
        Nutch.ARG_TOPN, topN,
        Nutch.ARG_SOLR, solrUrl,
        ElasticConstants.CLUSTER,elasticSearchAddr,      //使用es建立索引
        Nutch.ARG_SEEDDIR, seedDir,
        Nutch.ARG_NUMTASKS, numTasks,
        Nutch.ARG_BATCH,batchId,      //解决NullPointerException问题
        GeneratorJob.BATCH_ID,batchId);       //解决NullPointerException问题，貌似没用
    run(argMap);

修改org.apache.nutch.indexer.elastic.ElasticWriter代码，支持-elasticindex ip:port传参

public void open(TaskAttemptContext job) throws IOException {
    String clusterName = job.getConfiguration().get(ElasticConstants.CLUSTER);
    if (clusterName != null && !clusterName.contains(":")) {
      node = nodeBuilder().clusterName(clusterName).client(true).node();
    } else {
      node = nodeBuilder().client(true).node();
    }
    LOG.info(String.format("clusterName=[%s]",clusterName));

    if(clusterName.contains(":")){
        String[] addr = clusterName.split(":");
        client = new TransportClient()
                .addTransportAddress(new InetSocketTransportAddress(addr[0],Integer.parseInt(addr[1])));

    }else{
        client = node.client();
    }

    bulk = client.prepareBulk();
    defaultIndex = job.getConfiguration().get(ElasticConstants.INDEX, "index");
    maxBulkDocs = job.getConfiguration().getInt(
        ElasticConstants.MAX_BULK_DOCS, DEFAULT_MAX_BULK_DOCS);
    maxBulkLength = job.getConfiguration().getInt(
        ElasticConstants.MAX_BULK_LENGTH, DEFAULT_MAX_BULK_LENGTH);
  }

在nutch目录下增加urls目录，在url目录下新建seed.txt，写入要爬的种子地址

运行Crawler

传入参数

urls -elasticindex a2:9300 -threads 10 -depth 3 -topN 5 -batchId 1

观察nutch/hadoop.log日志

           2013-11-03 22:57:36,682 INFO  elasticsearch.node - [Ikonn] started
2013-11-03 22:57:36,682 INFO  elastic.ElasticWriter - clusterName=[a2:9300]
2013-11-03 22:57:36,692 INFO  elasticsearch.plugins - [Electron] loaded [], sites []
2013-11-03 22:57:36,863 INFO  basic.BasicIndexingFilter - Maximum title length for indexing set to: 100
2013-11-03 22:57:36,864 INFO  indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2013-11-03 22:57:36,864 INFO  anchor.AnchorIndexingFilter - Anchor deduplication is: off
2013-11-03 22:57:36,865 INFO  indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2013-11-03 22:57:37,946 INFO  elastic.ElasticWriter - Processing remaining requests [docs = 86, length = 130314, total docs = 86]
2013-11-03 22:57:37,988 INFO  elastic.ElasticWriter - Processing to finalize last execute
2013-11-03 22:57:41,986 INFO  elastic.ElasticWriter - Previous took in ms 1590, including wait 3998
2013-11-03 22:57:42,020 INFO  elasticsearch.node - [Ikonn] stopping ...
2013-11-03 22:57:42,032 INFO  elasticsearch.node - [Ikonn] stopped
2013-11-03 22:57:42,032 INFO  elasticsearch.node - [Ikonn] closing ...
2013-11-03 22:57:42,039 INFO  elasticsearch.node - [Ikonn] closed
2013-11-03 22:57:42,041 WARN  mapred.FileOutputCommitter - Output path is null in cleanup
2013-11-03 22:57:42,057 INFO  elastic.ElasticIndexerJob - Done

查询es

http://a2:9200/_search?q=%E7%BE%8E%E5%A5%B3&pretty=true

返回结果，说明已经跑通了，观察hbase中，表已经自动建好，并存入了已经爬到的数据

参考

http://www.blogjava.net/paulwong/archive/2013/08/31/403513.html

http://my.oschina.net/mynote/blog/152845

http://www.searchtech.pro/nutch2.1-elasticsearch-mysql-local-Integrate

http://blog.csdn.net/laigood/article/details/7625862