CentOS Root Run Elasticsearch abnormal problem solving _linux

Running Elasticsearch 2.3 on CentOS 6.5, the exception is as follows:

Exception in thread "main" Java.lang.RuntimeException:don ' t run Elasticsearch as root.
     At Org.elasticsearch.bootstrap.Bootstrap.initializeNatives (bootstrap.java:93) at
    Org.elasticsearch.bootstrap.Bootstrap.setup (bootstrap.java:144) at
    Org.elasticsearch.bootstrap.Bootstrap.init (bootstrap.java:270) at
    Org.elasticsearch.bootstrap.Elasticsearch.main (elasticsearch.java:35)
refer to the log for complete error details .

The exception is described as not being able to run Elasticsearch with root permissions. The solution is to add parameters at run time:

Bin/elasticsearch-des.insecure.allow.root=true

or modify the Bin/elasticsearch, plus the es_java_opts attribute:

Es_java_opts= "-des.insecure.allow.root=true"

Restart Elasticsearch after saving.

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