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。

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:

set JPDA_ADDRESS=7070
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。

Eclipse 的Solr环境搭建

2.1 Solr的编译

进入solr的目录，运行ant：

192:solr-4.8.0 rcf$ ant
Buildfile: /Users/rcf/workspace/java/solr/solr-4.8.0/build.xml

-projecthelp:
        [-] Buildfile: /Users/rcf/workspace/java/solr/solr-4.8.0/build.xml

Main targets:

 check-svn-working-copy       Checks the status of the SVN working copy
 clean                        Clean Lucene and Solr build dirs
 clean-eclipse                Removes all Eclipse configuration files
 clean-idea                   Removes all IntelliJ IDEA configuration files
 clean-jars                   Remove all JAR files from lib folders in the checkout
 clean-maven-build            Clean up Maven POMs in working copy
 clean-netbeans               Removes all Netbeans configuration files
 compile                      Compile Lucene and Solr
 compile-test                 Compile Lucene and Solr tests and test-frameworks
 documentation                Generate Lucene and Solr Documentation
 documentation-lint           Validates the generated documentation (HTML errors, broken links,...)
 eclipse                      Setup Eclipse configuration
 generate-maven-artifacts     Generate Maven Artifacts for Lucene and Solr
 get-maven-poms               Copy Maven POMs from dev-tools/maven/ to maven-build/
 idea                         Setup IntelliJ IDEA configuration
 ivy-bootstrap                Download and install Ivy in the users ant lib dir
 jar                          Build Lucene and Solr Jar files
 jar-checksums                Recompute SHA1 checksums for all JAR files.
 jar-src                      Build Lucene and Solr Source Jar files
 netbeans                     Setup Netbeans configuration
 nightly-smoke                Builds an unsigned release and smoke tests it
 pitest                       Run PITest on both Lucene and Solr
 precommit                    Run basic checks before committing
 rat-sources                  Runs rat across all sources and tests
 regenerate                   Runs all code regenerators
 remove-maven-artifacts       Removes all Lucene/Solr Maven artifacts from the local repository
 resolve                      Resolves all dependencies
 run-clover                   Runs all tests to measure coverage and generates report (pass "ANT_OPTS=-Xmx1536M" as environment)
 run-maven-build              Runs the Maven build using automatically generated POMs
 test                         Test both Lucene and Solr
 test-help                    Test runner help
 test-with-heapdumps          Runs tests with heap dumps on OOM enabled (if VM supports this)
 validate                     Validate dependencies, licenses, etc.
 validate-maven-dependencies  Validates maven dependencies, licenses, etc.
Default target: -projecthelp

BUILD SUCCESSFUL
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

192:~ rcf$ cd /Users/rcf/workspace/java/solr/solr-4.8.0/solr
192:solr rcf$ ls
CHANGES.txt        README.txt        build.xml        contrib            docs            package            solrj
LICENSE.txt        SYSTEM_REQUIREMENTS.txt    cloud-dev        core            example            scripts            test-framework
NOTICE.txt        build            common-build.xml    dist            licenses        site            webapp
192:solr rcf$ ant dist
Buildfile: /Users/rcf/workspace/java/solr/solr-4.8.0/solr/build.xml
     [echo] Building solr...

init-dist:

dist-solrj:
     [echo] Building solr-solrj...

check-lucene-core-uptodate:

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；

<?xml version='1.0' encoding='utf-8'?>
<Context> 
         <Environment name="solr/home" type="java.lang.String" value="/Users/rcf/workspace/java/solr/Solr" override="true" />
</Context>

3、创建solr/home,在里面放入solr.xml；

<?xml version="1.0" encoding="UTF-8" ?>
<solr>
    <solrcloud>
        <str name="host">${host:}</str>
        <int name="hostPort">${jetty.port:8983}</int>
        <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>

4、这样就可以进行调试solr了；

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；

<?xml version="1.0" encoding="UTF-8" ?>
 <solr>
     <solrcloud>
         <str name="host">${host:}</str>
         <int name="hostPort">${jetty.port:8983}</int>
         <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>

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；

 Logging level
solr.log=/Users/rcf/workspace/java/tomcat/apache-tomcat-8.0.9/logs
log4j.rootLogger=INFO, file, CONSOLE

log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender

log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%-4r [%t] %-5p %c %x \u2013 %m%n

 size rotation with log cleanup.
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.MaxFileSize=4MB
log4j.appender.file.MaxBackupIndex=9

 File to log to and log format
log4j.appender.file.File=${solr.log}/solr.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%-5p - %d{yyyy-MM-dd HH:mm:ss.SSS}; %C; %m\n

log4j.logger.org.apache.zookeeper=WARN
log4j.logger.org.apache.hadoop=WARN

set to INFO to enable infostream log messages
log4j.logger.org.apache.solr.update.LoggingInfoStream=OFF

04、Solr4.8.0源码分析(4)之Eclipse Solr调试环境搭建