title: Elasticsearch crashes when updated data path
body: <p>Elasticsearch setup works fine with default configurations.
    But when updated its path.data setting from elasticsearch.yml file it crashes with below error</p>
  
  <pre><code>[2015-11-19 12:39:56,194][ERROR][bootstrap                ] Exception
  java.lang.IllegalStateException: Unable to access 'path.data' (/home/hadoop/bigdata/data/elasticsearch)
          at org.elasticsearch.bootstrap.Security.addPath(Security.java:197)
          at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:170)
          at org.elasticsearch.bootstrap.Security.configure(Security.java:100)
          at org.elasticsearch.bootstrap.Bootstrap.setupSecurity(Bootstrap.java:181)
          at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:159)
          at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270)
          at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35)
  Caused by: java.nio.file.AccessDeniedException: /home/hadoop/bigdata/data
          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.checkAccess(UnixFileSystemProvider.java:308)
          at java.nio.file.Files.createDirectories(Files.java:702)
          at org.elasticsearch.bootstrap.Security.ensureDirectoryExists(Security.java:218)
          at org.elasticsearch.bootstrap.Security.addPath(Security.java:195)
          ... 6 more
  </code></pre>
  
  <p>I have copied elasticsearch directory from /var/lib location with preserved mode. But no success.
  Can anybody please help me to come out of this error</p>
  
  <p>Thanks,
  Sanjay Bhosale</p>