Solr4.8.0源码分析(4)之Eclipse Solr调试环境搭建
由于公司里的Solr调试都是用远程jpda进行的，但是家里只有一台电脑所以不能jpda进行调试，这是因为jpda的端口冲突。所以只能在Eclipse 搭建Solr的环境，折腾了一小时终于完成了。
1. JDPA远程调试
搭建换完成Solr环境后，对${TOMCAT_HOME}/bin/startup.sh 最后一行进行修改，如下所示:
1 set JPDA_ADDRESS=7070
2 exec "$PRGDIR"/"$EXECUTABLE" jpda start "$@"
后在eclipse新建debug配置，这样就可以远程调试solr了，要注意服务器端Solr.war包的代码与eclipse的Solr代码一致。
二.Eclipse 的Solr环境搭建
2.1 Solr的编译
进入solr的目录，运行ant：
1 192:solr-4.8.0 rcf$ ant
2 Buildfile: /Users/rcf/workspace/java/solr/solr-4.8.0/build.xml
3
4 -projecthelp:
5 [-] Buildfile: /Users/rcf/workspace/java/solr/solr-4.8.0/build.xml
6
7 Main targets:
8
9 check-svn-working-copy Checks the status of the SVN working copy
10 clean Clean Lucene and Solr build dirs
11 clean-eclipse Removes all Eclipse configuration files
12 clean-idea Removes all IntelliJ IDEA configuration files
13 clean-jars Remove all JAR files from lib folders in the checkout
14 clean-maven-build Clean up Maven POMs in working copy
15 clean-netbeans Removes all Netbeans configuration files
16 compile Compile Lucene and Solr
17 compile-test Compile Lucene and Solr tests and test-frameworks
18 documentation Generate Lucene and Solr Documentation
19 documentation-lint Validates the generated documentation (HTML errors, broken links,...)
20 eclipse Setup Eclipse configuration
21 generate-maven-artifacts Generate Maven Artifacts for Lucene and Solr
22 get-maven-poms Copy Maven POMs from dev-tools/maven/ to maven-build/
23 idea Setup IntelliJ IDEA configuration
24 ivy-bootstrap Download and install Ivy in the users ant lib dir
25 jar Build Lucene and Solr Jar files
26 jar-checksums Recompute SHA1 checksums for all JAR files.
27 jar-src Build Lucene and Solr Source Jar files
28 netbeans Setup Netbeans configuration
29 nightly-smoke Builds an unsigned release and smoke tests it
30 pitest Run PITest on both Lucene and Solr
31 precommit Run basic checks before committing
32 rat-sources Runs rat across all sources and tests
33 regenerate Runs all code regenerators
34 remove-maven-artifacts Removes all Lucene/Solr Maven artifacts from the local repository
35 resolve Resolves all dependencies
36 run-clover Runs all tests to measure coverage and generates report (pass "ANT_OPTS=-Xmx1536M" as environment)
37 run-maven-build Runs the Maven build using automatically generated POMs
38 test Test both Lucene and Solr
39 test-help Test runner help
40 test-with-heapdumps Runs tests with heap dumps on OOM enabled (if VM supports this)
41 validate Validate dependencies, licenses, etc.
42 validate-maven-dependencies Validates maven dependencies, licenses, etc.
43 Default target: -projecthelp
44
45 BUILD SUCCESSFUL
46 Total time: 0 seconds
运行ant eclipse就可以对solr源码进行编译成eclipse工程。在编译ant eclipse时候可能会失败，这是可以运行 ant ivy-bootstrap
2.2 将eclipse工程转换成WEB工程
将编译好的solr工程导入eclipse，后右键点击Properties，选中Project Facets,如图所示
选择OK后，就转换Solr的WEB工程了，这是有些xml文件会出现错误的红叉叉，不用管它。
2.3 solr.war包生成
进入solr/solr目录，运行ant dist,如下图所示
1 192:~ rcf$ cd /Users/rcf/workspace/java/solr/solr-4.8.0/solr
2 192:solr rcf$ ls
3 CHANGES.txt README.txt build.xml contrib docs package solrj
4 LICENSE.txt SYSTEM_REQUIREMENTS.txt cloud-dev core example scripts test-framework
5 NOTICE.txt build common-build.xml dist licenses site webapp
6 192:solr rcf$ ant dist
7 Buildfile: /Users/rcf/workspace/java/solr/solr-4.8.0/solr/build.xml
8 [echo] Building solr...
9
10 init-dist:
11
12 dist-solrj:
13 [echo] Building solr-solrj...
14
15 check-lucene-core-uptodate:
16
17 jar-lucene-core:
编译完成后会再dist目录下生产solr.war包
2.4 solr配置
1、 将solr.warcopy到solr/WebContent目录下并进行解压；
2、 在WebRoot/META-INF目下创建context.xml文件，配置solr/home；
1 <?xml version='1.0' encoding='utf-8'?>
2 <Context>
3 <Environment name="solr/home" type="java.lang.String" value="/Users/rcf/workspace/java/solr/Solr" override="true" />
4 </Context>
3、 创建solr/home,在里面放入solr.xml；
1 <?xml version="1.0" encoding="UTF-8" ?>
2 <solr>
3 <solrcloud>
4 <str name="host">${host:}</str>
5 <int name="hostPort">${jetty.port:8983}</int>
6 <str name="hostContext">${hostContext:solr}</str>
7 <int name="zkClientTimeout">${zkClientTimeout:30000}</int>
8 <bool name="genericCoreNodeNames">${genericCoreNodeNames:true}</bool>
9 </solrcloud>
10 <shardHandlerFactory name="shardHandlerFactory" class="HttpShardHandlerFactory">
11 <int name="socketTimeout">${socketTimeout:0}</int>
12 <int name="connTimeout">${connTimeout:0}</int>
13 </shardHandlerFactory>
14 </solr>
4、 这样就可以进行调试solr了；
三.Solr环境搭建
真实的solr环境搭建，跟eclipse的环境搭建类似，主要分为以下几步：
1、 对solr源码进行编译，antdist生成solr.war；
2、 下载tomcat并进行安装(tomcat的配置并不需要修改)；
3、 将solr.war复制到${TOMCAT_HOME}/wepapps目录下并将solr.war包解压成solr目录；
4、 将solr/dist目录下的jar包全部拷贝到${TOMCAT_HOME}/wepapps/solr/lib目录下；
5、 在${TOMCAT_HOME}/conf/Catalina/localhost/创建solr.xml,里面设置了solr/home；
1 <Context docBase="/Users/rcf/workspace/java/tomcat/apache-tomcat-8.0.9/webapps/solr.war" debug="0" crossContext="true" >
2 <Environment name="solr/home" type="java.lang.String" value="/Users/rcf/workspace/java/solr/Solr" override="true" />
3 </Context>
6、 创建solr/home，也创建solr.xml；
1 <?xml version="1.0" encoding="UTF-8" ?>
2 <solr>
3 <solrcloud>
4 <str name="host">${host:}</str>
5 <int name="hostPort">${jetty.port:8983}</int>
6 <str name="hostContext">${hostContext:solr}</str>
7 <int name="zkClientTimeout">${zkClientTimeout:30000}</int>
8 <bool name="genericCoreNodeNames">${genericCoreNodeNames:true}</bool>
9 </solrcloud>
10 <shardHandlerFactory name="shardHandlerFactory" class="HttpShardHandlerFactory">
11 <int name="socketTimeout">${socketTimeout:0}</int>
12 <int name="connTimeout">${connTimeout:0}</int>
13 </shardHandlerFactory>
14 </solr>
7、 在将solr源码包里的log4j.properties拷贝到${TOMCAT_HOME}/lib目录下，并修改log文件路径；
1 1 # Logging level
2 2 solr.log=/Users/rcf/workspace/java/tomcat/apache-tomcat-8.0.9/logs
3 3 log4j.rootLogger=INFO, file, CONSOLE
4 4
5 5 log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
6 6
7 7 log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
8 8 log4j.appender.CONSOLE.layout.ConversionPattern=%-4r [%t] %-5p %c %x \u2013 %m%n
9 9
10 10 #- size rotation with log cleanup.
11 11 log4j.appender.file=org.apache.log4j.RollingFileAppender
12 12 log4j.appender.file.MaxFileSize=4MB
13 13 log4j.appender.file.MaxBackupIndex=9
14 14
15 15 #- File to log to and log format
16 16 log4j.appender.file.File=${solr.log}/solr.log
17 17 log4j.appender.file.layout=org.apache.log4j.PatternLayout
18 18 log4j.appender.file.layout.ConversionPattern=%-5p - %d{yyyy-MM-dd HH:mm:ss.SSS}; %C; %m\n
19 19
20 20 log4j.logger.org.apache.zookeeper=WARN
21 21 log4j.logger.org.apache.hadoop=WARN
22 22
23 23 # set to INFO to enable infostream log messages
24 24 log4j.logger.org.apache.solr.update.LoggingInfoStream=OFF
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