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[elastic@node2 elasticsearch-7.0.0]$ bin/elasticsearchOpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.AccessDeniedException: /opt/elasticsearch-7.0.0/config/elasticsearch.keystoreLikely root cause: java.nio.file.AccessDeniedException: /opt/elasticsearch-7.0.0/config/elasticsearch.keystore	at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:90)	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)	at java.base/sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:219)	at java.base/java.nio.file.Files.newByteChannel(Files.java:373)	at java.base/java.nio.file.Files.newByteChannel(Files.java:424)	at org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)	at org.elasticsearch.common.settings.KeyStoreWrapper.load(KeyStoreWrapper.java:215)	at org.elasticsearch.bootstrap.Bootstrap.loadSecureSettings(Bootstrap.java:224)	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:289)	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159)	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150)	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124)	at org.elasticsearch.cli.Command.main(Command.java:90)	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115)	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)Refer to the log for complete error details.[elastic@node2 elasticsearch-7.0.0]$

查找原因，elasticsearch.keystore的宿主是root

[elastic@node2 elasticsearch-7.0.0]$ ll config/total 40-rw-rw---- 1 root    root      207 May  5 02:28 elasticsearch.keystore-rw-rw---- 1 elastic elastic  2841 May  5 02:33 elasticsearch.yml-rw-rw---- 1 elastic elastic  3524 May  5 02:25 jvm.options-rw-rw---- 1 elastic elastic 17170 May  5 02:25 log4j2.properties-rw-rw---- 1 elastic elastic   473 May  5 02:25 role_mapping.yml-rw-rw---- 1 elastic elastic   197 May  5 02:25 roles.yml-rw-rw---- 1 elastic elastic     0 May  5 02:25 users-rw-rw---- 1 elastic elastic     0 May  5 02:25 users_roles[elastic@node2 elasticsearch-7.0.0]$

重新更改宿主

[elastic@node3 elasticsearch-7.0.0]$ su rootPassword: [root@node3 elasticsearch-7.0.0]# chown -R elastic:elastic /opt/elasticsearch-7.0.0[root@node3 elasticsearch-7.0.0]#

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