Can any one explain the grok pattern for the below lines,
[2017-08-19T12:47:43,822][INFO][logstash.agent] Successfully started Logstash API endpoint {:port=>9600}
[2017-08-19T12:49:47,213][WARN][logstash.agent] stopping pipeline {:id=>"main"}
Apache, Apache Lucene, Apache Hadoop, Hadoop, HDFS and the yellow elephant
logo are trademarks of the
Apache Software Foundation
in the United States and/or other countries.