解决 Elasticsearch 启动异常 AccessDeniedException

异常信息：

[xzlawin@hadoop10 elasticsearch-7.8.0]$ bin/elasticsearch
future versions of Elasticsearch will require Java 11; your Java version from [/usr/local/opt/jdk1.8.0_192/jre] does not meet this requirement
future versions of Elasticsearch will require Java 11; your Java version from [/usr/local/opt/jdk1.8.0_192/jre] does not meet this requirement
Exception in thread "main" java.nio.file.AccessDeniedException: /usr/local/opt/elasticsearch-7.8.0/config/elasticsearch.keystore
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
	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 org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)
	at org.elasticsearch.common.settings.KeyStoreWrapper.load(KeyStoreWrapper.java:220)
	at org.elasticsearch.common.settings.HasPasswordKeyStoreCommand.execute(HasPasswordKeyStoreCommand.java:42)
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127)
	at org.elasticsearch.cli.MultiCommand.execute(MultiCommand.java:91)
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127)
	at org.elasticsearch.cli.Command.main(Command.java:90)
	at org.elasticsearch.common.settings.KeyStoreCli.main(KeyStoreCli.java:43)
Java HotSpot(TM) 64-Bit Server VM warning: Cannot open file logs/gc.log due to Permission denied

Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.AccessDeniedException: /usr/local/opt/elasticsearch-7.8.0/config/elasticsearch.keystore
Likely root cause: java.nio.file.AccessDeniedException: /usr/local/opt/elasticsearch-7.8.0/config/elasticsearch.keystore
	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
	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 org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)
	at org.elasticsearch.common.settings.KeyStoreWrapper.load(KeyStoreWrapper.java:220)
	at org.elasticsearch.bootstrap.Bootstrap.loadSecureSettings(Bootstrap.java:240)
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349)
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170)
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161)
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127)
	at org.elasticsearch.cli.Command.main(Command.java:90)
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126)
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)

分析原因：elasticsearch目录文件写入失败

解决方法：修改elasticsearch目录权限

cd /usr/local/opt
chown -R xzlawin:devgroup elasticsearch-7.8.0

cd /usr/local/opt/elasticsearch-7.8.0
chmod 755 -R elasticsearch-7.8.0