elasticsearch 7.10 启动报错（一）

测试 环境一个es发现停了，启动提示异常

future versions of Elasticsearch will require Java 11; your Java version from [/opt/jdk1.8.0_71/jre] does not meet this requirement
Exception in thread "main" java.nio.file.FileSystemException: /opt/elasticsearch-7.10.2/config/jvm.options/jvm.options: 不是目录
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
	at sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:214)
	at java.nio.file.Files.newByteChannel(Files.java:361)
	at java.nio.file.Files.newByteChannel(Files.java:407)
	at java.nio.file.spi.FileSystemProvider.newInputStream(FileSystemProvider.java:384)
	at java.nio.file.Files.newInputStream(Files.java:152)
	at org.elasticsearch.tools.launchers.JvmOptionsParser.readJvmOptionsFiles(JvmOptionsParser.java:167)
	at org.elasticsearch.tools.launchers.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:128)
	at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:95)

jdk 还是1.8

看这个错误，需要jdk11.

网速不好，不安装了，用es 自带的jdk 替代下。

elasticsearch/bin目录下vim elasticsearch-env：大约40多活位置

vim elasticsearch-env

去掉标红圈的。不用jdk1.8的，ES_HOME指 elasticsearch自带的jdk。

报存重启即可。