Log Fields

log.level

Original log level of the log event.

Some examples are warn, error, i.

type: keyword

example: err

core

log.logger

The name of the logger inside an application. This is usually the name of the class which initialized the logger, or can be a custom name.

type: keyword

example: org.elasticsearch.bootstrap.Bootstrap

core

log.original

This is the original log message and contains the full log message before splitting it up in multiple parts.

In contrast to the message field which can contain an extracted part of the log message, this field contains the original, full log message. It can have already some modifications applied like encoding or new lines removed to clean up the log message.

This field is not indexed and doc_values are disabled so it can’t be queried but the value can be retrieved from _source.

type: keyword

example: Sep 19 08:26:10 localhost My log

core