用wget和dpkg命令安装了ES2.3.1，到/usr/share/elasticsearch/bin目录下运行./elasticsearch的时候，出现了以下错误：
Exception in thread "main" ElasticsearchException[Failed to load logging configuration]; nested: NoSuchFileException[/usr/share/elasticsearch/config];
Likely root cause: java.nio.file.NoSuchFileException: /usr/share/elasticsearch/config
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99)
at java.nio.file.Files.readAttributes(Files.java:1737)
at java.nio.file.FileTreeWalker.getAttributes(FileTreeWalker.java:225)
at java.nio.file.FileTreeWalker.visit(FileTreeWalker.java:276)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:322)
at java.nio.file.Files.walkFileTree(Files.java:2662)
at org.elasticsearch.common.logging.log4j.LogConfigurator.resolveConfig(LogConfigurator.java:142)
at org.elasticsearch.common.logging.log4j.LogConfigurator.configure(LogConfigurator.java:103)
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:243)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35)
Refer to the log for complete error details.
原因是因为使用了root身份来运行ES，解决方法是使用service elasticsearch start。