mirror of
https://github.com/elastic/logstash.git
synced 2025-04-24 22:57:16 -04:00
39 lines
1.5 KiB
Text
39 lines
1.5 KiB
Text
[float]
|
|
[[reserved-fields]]
|
|
==== Reserved fields in {ls} events
|
|
|
|
Some fields in {ls} events are reserved, or are required to adhere to a certain
|
|
shape. Using these fields can cause runtime exceptions when the event API or
|
|
plugins encounter incompatible values.
|
|
|
|
[cols="<,<",options="header",]
|
|
|=======================================================================
|
|
| |
|
|
| <<metadata,`@metadata`>> |A key/value map.
|
|
|
|
Ruby-based Plugin API: value is an
|
|
https://javadoc.io/static/org.jruby/jruby-core/9.2.5.0/org/jruby/RubyHash.html[org.jruby.RubyHash].
|
|
|
|
Java-based Plugin API: value is an
|
|
https://github.com/elastic/logstash/blob/master/logstash-core/src/main/java/org/logstash/ConvertedMap.java[org.logstash.ConvertedMap].
|
|
|
|
In serialized form (such as JSON): a key/value map where the keys must be
|
|
strings and the values are not constrained to a particular type.
|
|
|
|
| `@timestamp` |An object holding representation of a specific moment in time.
|
|
|
|
Ruby-based Plugin API: value is an
|
|
https://javadoc.io/static/org.jruby/jruby-core/9.2.5.0/org/jruby/RubyTime.html[org.jruby.RubyTime].
|
|
|
|
Java-based Plugin API: value is a
|
|
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/time/Instant.html[java.time.Instant].
|
|
|
|
In serialized form (such as JSON) or when setting with Event#set: an
|
|
ISO8601-compliant String value is acceptable.
|
|
|
|
| `@version` |A string, holding an integer value.
|
|
| `tags` |An array of distinct strings
|
|
|=======================================================================
|
|
|
|
|
|
|