Solr现在是一个独立的服务器。
从Solr5.0开始，Solr不再发布为在任何Servlet容器中部署的“war”Web应用程序包（Web Application Archive）。Solr现在部署为一个独立的java服务器应用程序，包含在Unix和Windows平台上可以使用的启动和停止脚本，以及将Solr作为服务安装到类Unix平台的/etc/init.d下的安装脚本。
本质上，Solr仍然以Servlet APIs实现，并在Jetty上运行，但只是作为一个实现。部署为“webapp”到其他的Servlet容器（或其他Jetty实例）上不被支持，可能在未来的Solr 5.x版本不会工作。而可能会带来Solr的其他改变，事实上是利用自定义网络协议栈功能。
安装JRE
1.需要Java Runtime Environment(JRE) 1.7或更高版本，先验证。
# java -version
2.安装可参考《在CentOS下安装JDK8》，包含JRE。 见
安装Solr5.3
1.去下载Solr安装文件solr-5.3.0.tgz。
2.将solr-5.3.0.tgz文件放到/tmp目录下，执行如下脚本：
# cd /tmp
# tar -zxvf solr-5.3.0.tgz // 解压压缩包
3.创建应用程序和数据目录
# mkdir -p /data/solr /usr/local/solr
4.创建运行solr的用户并赋权
# groupadd solr
# useradd -g solr solr
# chown -R solr.solr /data/solr /usr/local/solr
5.安装solr服务
# solr-5.3.0/bin/install_solr_service.sh solr-5.3.0.tgz -d /data/solr -i /usr/local/solr
6.检查服务状态
# service solr status
将会看到如下输出：
Solr process 29692 running on port 8983
{
"solr_home":"/data/solr/data/",
"version":"5.3.0 1696229 - noble - 2015-08-17 17:10:43",
"startTime":"2015-09-16T01:32:03.919Z",
"uptime":"0 days, 0 hours, 3 minutes, 6 seconds",
"memory":"89.8 MB (%18.3) of 490.7 MB"}
solr命令用法
1.定位到solr应用程序目录
# cd /usr/local/solr/solr
2.查看solr命令选项
# ./bin/solr
Usage: solr COMMAND OPTIONS where COMMAND is one of: start, stop, restart, status, healthcheck, create, create_core, create_collection, delete
Standalone server example (start Solr running in the background on port 8984):
./solr start -p 8984
SolrCloud example (start Solr running in SolrCloud mode using localhost:2181 to connect to ZooKeeper, with 1g max heap size and remote Java debug options enabled):
./solr start -c -m 1g -z localhost:2181 -a "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1044"
Pass -help after any COMMAND to see command-specific usage information, such as: ./solr start -help or ./solr stop -help
# ./bin/solr start -help
Usage: solr start [-f] [-c] [-h hostname] [-p port] [-d directory] [-z zkHost] [-m memory] [-e example] [-s solr.solr.home] [-a "additional-options"] [-V]
-f Start Solr in foreground; default starts Solr in the background and sends stdout / stderr to solr-PORT-console.log
-c or -cloud Start Solr in SolrCloud mode; if -z not supplied, an embedded ZooKeeper instance is started on Solr port+1000, such as 9983 if Solr is bound to 8983
-h <host> Specify the hostname for this Solr instance
-p <port> Specify the port to start the Solr HTTP listener on; default is 8983 The specified port (SOLR_PORT) will also be used to determine the stop port STOP_PORT=($SOLR_PORT-1000) and JMX RMI listen port RMI_PORT=(1$SOLR_PORT). For instance, if you set -p 8985, then the STOP_PORT=7985 and RMI_PORT=18985
-d <dir> Specify the Solr server directory; defaults to server
-z <zkHost> ZooKeeper connection string; only used when running in SolrCloud mode using -c To launch an embedded ZooKeeper instance, don't pass this parameter.
-m <memory> Sets the min (-Xms) and max (-Xmx) heap size for the JVM, such as: -m 4g results in: -Xms4g -Xmx4g; by default, this script sets the heap size to 512m
-s <dir> Sets the solr.solr.home system property; Solr will create core directories under this directory. This allows you to run multiple Solr instances on the same host while reusing the same server directory set using the -d parameter. If set, the specified directory should contain a solr.xml file, unless solr.xml exists in ZooKeeper. This parameter is ignored when running examples (-e), as the solr.solr.home depends on which example is run. The default value is server/solr.