Windows 下安装单机版 elasticsearch 7.10.2 教程

小渣渣

首先，下载 elasticsearch-7.10.2 版本解压到自定义目录下面，进入到 bin 目录下面，执行如下命令：

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由于我本机安装了 Java 1.8 版本的 JDK，并设置了 JAVA_HOME 环境变量，所以运行命令会报错如下：

future versions of Elasticsearch will require Java 11; your Java version from [C:\Java\jdk1.8.0_192\jre] does not meet this requirement
Installing service      :  "elasticsearch-service-x64"
Using JAVA_HOME (64-bit):  "C:\Java\jdk1.8.0_192"
Warning: with JDK 8 on Windows, Elasticsearch may be unable to derive correct
  ergonomic settings due to a JDK issue (JDK-8074459). Please use a newer
  version of Java.
Warning: MaxDirectMemorySize may have been miscalculated due to JDK-8074459.
  Please use a newer version of Java or set MaxDirectMemorySize explicitly.
-Des.networkaddress.cache.ttl=60;-Des.networkaddress.cache.negative.ttl=10;-XX:+AlwaysPreTouch;-Xss1m;-Djava.awt.headless=true;-Dfile.encoding=UTF-8;-Djna.nosys=true;-XX:-OmitStackTraceInFastThrow;-Dio.netty.noUnsafe=true;-Dio.netty.noKeySetOptimization=true;-Dio.netty.recycler.maxCapacityPerThread=0;-Dio.netty.allocator.numDirectArenas=0;-Dlog4j.shutdownHookEnabled=false;-Dlog4j2.disable.jmx=true;-Djava.locale.providers=SPI,JRE;-Xms1g;-Xmx1g;-XX:+UseConcMarkSweepGC;-XX:CMSInitiatingOccupancyFraction=75;-XX:+UseCMSInitiatingOccupancyOnly;-Djava.io.tmpdir=C:\Users\ITSVSE~1\AppData\Local\Temp\elasticsearch;-XX:+HeapDumpOnOutOfMemoryError;-XX:HeapDumpPath=data;-XX:ErrorFile=logs/hs_err_pid%p.log;-XX:+PrintGCDetails;-XX:+PrintGCDateStamps;-XX:+PrintTenuringDistribution;-XX:+PrintGCApplicationStoppedTime;-Xloggc:logs/gc.log;-XX:+UseGCLogFileRotation;-XX:NumberOfGCLogFiles=32;-XX:GCLogFileSize=64m;-XX:MaxDirectMemorySize=536870912
The service 'elasticsearch-service-x64' has been installed.

elasticsearch 7.10.2 压缩包里面其实已经内置了 JDK 11，我们让程序使用内置的 JDK 需要稍作修改，编辑 elasticsearch-env.bat 文件，修改如下：

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如果允许 elasticsearch 外网访问的话，需要修改 elasticsearch.yml 配置文件，添加如下配置：

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（完）

小渣渣

elasticsearch 单例模式并启动外网访问，elasticsearch.yml 配置如下：

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小渣渣

【实战】Elasticsearch-7.x 使用 xpack 进行安全认证
https://www.itsvse.com/thread-10206-1-1.html