You need to provide more information. If the time field is always surrounded by square brackets it is easy to dissect that out and then mutate+gsub it away.
What identifies ACTION_TYPE? Is it always the fourth field after the [time_field]. We need to know how to find it.
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.