Windows安装 Elasticsearch 教程

下载地址

Past Releases of Elastic Stack Software | Elastic

解压

解压完的样子

进入BIN目录

D:\Develop\elasticsearch\elasticsearch-7.12.0\bin

按住shift +鼠标右键打开 powershell 窗口

查看ES版本

 .\elasticsearch.bat --version

出现问题了

警告：不赞成使用JAVA_HOME，请使用ES_JAVA_HOME

PS D:\Develop\elasticsearch\elasticsearch-7.12.0\bin> .\elasticsearch.bat --version
"warning: usage of JAVA_HOME is deprecated, use ES_JAVA_HOME"
Future versions of Elasticsearch will require Java 11; your Java version from [C:\Program Files\Java\jdk1.8.0_241\jre] does not meet this requirement. Consider switching to a distribution of Elasticsearch with a bundled JDK. If you are already using a distribution with a bundled JDK, ensure the JAVA_HOME environment variable is not set.
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.
Version: 7.12.0, Build: default/zip/78722783c38caa25a70982b5b042074cde5d3b3a/2021-03-18T06:17:15.410153305Z, JVM: 1.8.0_241

新增一个 ES_JAVA_HOME

再次执行 .\elasticsearch.bat --version

PS D:\Develop\elasticsearch\elasticsearch-7.12.0\bin> .\elasticsearch.bat --version
Future versions of Elasticsearch will require Java 11; your Java version from [C:\Program Files\Java\jdk1.8.0_241\jre] does not meet this requirement. Consider switching to a distribution of Elasticsearch with a bundled JDK. If you are already using a distribution with a bundled JDK, ensure the JAVA_HOME environment variable is not set.
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.
Version: 7.12.0, Build: default/zip/78722783c38caa25a70982b5b042074cde5d3b3a/2021-03-18T06:17:15.410153305Z, JVM: 1.8.0_241

不报错了。