Precondition:

hadoop 2.7.1

hbase 0.98.13

solr 5.2.1 / Apache Solr 4.8.1

http://archive.apache.org/dist/lucene/solr/4.8.1/

gora 0.6.1

gora编译和Nutch编译部署

1. Gora下载

最新版本号呢gora是0.6.1，下载或者直接通过git获取 git clonehttps://github.com/apache/gora.git

2.  改动gora pom.xml

下面可能是Nutch2.3能终于执行的关键。没有1.0.1.1-hadoop2:)

<hadoop-1.version>1.2.1</hadoop-1.version>

<hadoop-2.version>2.7.1</hadoop-2.version>

<hadoop-1.test.version>1.2.1</hadoop-1.test.version>

<hadoop-2.test.version>2.7.1</hadoop-2.test.version>

<hbase.version>0.98.13-hadoop2</hbase.version>

<hbase.test.version>0.98.13-hadoop2</hbase.test.version>

3. 编译gora

mvn clean install -DskipTests

mvn install -DskipTests

4. 改动$NUTCH_HOME/conf/nutch-site.xml

<configuration>

<property>

	<name>storage.data.store.class</name>

	<value>org.apache.gora.hbase.store.HBaseStore</value>

	<description>Default class for storing data</description>

</property>

<property>

	<name>http.agent.name</name>

	<value>My Nutch Spider</value>

</property>

<property>

	<name>plugin.includes</name>

	<value>protocol-httpclient|urlfilter-regex|parse-(html|tika)|index-(basic|anchor)|indexer-solr|scoring-opic|urlnormalizer-(pass|regex|basic)</value>

</property>

</configuration>

5. 改动$NUTCH_HOME/ivy/ivy.xml

全部"org.apache.gora"涉及到的rev改动为0.6。比如：

<dependency org="org.apache.gora" name="gora-hbase" rev="0.5" conf="*->default" /> =>

<dependency org="org.apache.gora" name="gora-hbase" rev="0.6" conf="*->default" />

删除"org.apache.hadoop"。加入：

<dependency org="org.apache.hadoop" name="hadoop-client" rev="2.7.1" conf="*->default"/>

6.改动$NUTCH_HOME/ivy/ivysettings.xml

<ivysettings>

<settings defaultResolver="default"/>

<property name="m2-pattern" value="${user.home}/.m2/repository/[organisation]/[module]/[revision]/[module]-[revision](-[classifier]).[ext]" override="false" />

<resolvers>

<chain name="default">

<filesystem name="local-maven2" m2compatible="true" >

<artifact pattern="${m2-pattern}"/>

<ivy pattern="${m2-pattern}"/>

</filesystem>

<ibiblio name="central" m2compatible="true"/>

</chain>

</resolvers>

</ivysettings> 

7. $NUTCH_HOME/conf/gora.properties 加入

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

8. 依据须要改动 $NUTCH_HOME/conf/regex-urlfilter.txt $NUTCH_HOME/conf/nutch-default.xml

能够不用改

9. 编译。要非常长时间

ant runtime

10. 将gora以下的hadoop*.jar复制到runtime/local/lib/

cp /disk/gora/gora-core/lib/hadoop* /disk2/nutch/nutch-2.3/runtime/local/lib/

11. 建立搜索url

mkdir urls

echo http://nutch.apache.org/ >> urls/seek.txt

12. 測试执行

cd runtime/local/

bin/nutch inject urls/seek.txt

solr5.2.1 部署执行

1. 下载解压

2. example/example-DIH 包括了完整的solr home配置，复制到server/solr

cp -rf /disk2/solr/solr-5.2.1/example/example-DIH/solr/* /disk2/solr/solr-5.2.1/server/solr/

3. 解决Nutch执行中可能遇到的Error
404: Prob accessing /solr/solr/update. Reason: Not Found

cd /disk2/solr/solr-5.2.1/server/solr

cp /disk2/solr/solr-5.2.1/example/exampledocs/monitor.xml .

curl http://127.0.0.1:8983/solr/solr/update --data-binary
@monitor.xml -H 'Content-type:application/xml'

3. 为nutch crawl执行。还要改动/disk2/solr/solr-5.2.1/server/solr/solr/conf/schema.xml。加上:

	<field name="host" type="string" stored="false" indexed="true"/>

	<field name="site" type="string" stored="false" indexed="true"/>

	<field name="cache" type="string" stored="true" indexed="false"/>

	<field name="digest" type="string" stored="true" indexed="false"/>

	<field name="segment" type="string" stored="true" indexed="false"/>

	<field name="boost" type="float" stored="true" indexed="false"/>

	<field name="tstamp" type="date" stored="true" indexed="false"/>

	<field name="stamp" type="date" stored="true" indexed="false"/>

	<field name="anchor" type="string" stored="true" indexed="true" multiValued="true"/>

4. bin/solr start

5. http://192.168.1.106:8983/solr

6. bin/crawl urls/seek.txt TestCrawl http://192.168.1.106:8983/solr/solr
2

FAQ

以下是过程中遇到的让人愤慨的。。。

1. 错误: 找不到或无法载入主类 org.apache.nutch.crawl.InjectorJob:

没有ant runtime

2. Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/HBaseConfiguration

nutch2.3 须要使用hbase 0.98.13 的几个hbase-comm*.jar / hbase-client*.jar / hbase-protocol*.jar。千万不要用hbase1.0.1.1的。

cd /disk2/hbase/hbase-0.98.13-hadoop2/lib

cp hbase-common* /disk2/nutch/nutch-2.3/runtime/local/lib/

cp hbase-client-0.98.13-hadoop2.jar /disk2/nutch/nutch-2.3/runtime/local/lib/

cp hbase-protocol* /disk2/nutch/nutch-2.3/runtime/local/lib/

3. Exception in thread "main" java.lang.NoSuchFieldError: HBASE_CLIENT_PREFETCH_LIMIT

原因同上。hbase 和 nutch不匹配

4. 2015-07-21 13:53:53,238 WARN  util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

就让他native好了

mkdir -p /disk2/nutch/nutch-2.3/runtime/local/lib/native/Linux-amd64-64/

cd /disk2/hadoop/hadoop-2.7.1/lib/native/

cp * /disk2/nutch/nutch-2.3/runtime/local/lib/native/Linux-amd64-64/

cp * /disk2/nutch/nutch-2.3/runtime/local/lib/native/