- Filebeat Reference: other versions:
- Overview
- Get started
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- Upgrade
- How Filebeat works
- Configure
- Inputs
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- add_cloud_metadata
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- filebeat.reference.yml
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- Beats central management
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- Modules overview
- ActiveMQ module
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- Common problems
- Can’t read log files from network volumes
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IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Rename fields from events
editRename fields from events
editThe rename processor specifies a list of fields to rename. Under the fields
key, each entry contains a from: old-key and a to: new-key pair, where:
-
fromis the original field name -
tois the target field name
The rename processor cannot be used to overwrite fields. To overwrite fields
either first rename the target field, or use the drop_fields processor to drop
the field and then rename the field.
You can rename fields to resolve field name conflicts. For example, if an
event has two fields, c and c.b (where b is a subfield of c), assigning
scalar values results in an Elasticsearch error at ingest time. The assignment {"c": 1,
"c.b": 2} would result in an error because c is an object and cannot be
assigned a scalar value. To prevent this conflict, rename c to c.value
before assigning values.
processors: - rename: fields: - from: "a.g" to: "e.d" ignore_missing: false fail_on_error: true
The rename processor has the following configuration settings:
-
ignore_missing -
(Optional) If set to true, no error is logged in case a key
which should be renamed is missing. Default is
false. -
fail_on_error -
(Optional) If set to true, in case of an error the renaming of
fields is stopped and the original event is returned. If set to false, renaming
continues also if an error happened during renaming. Default is
true.
See Conditions for a list of supported conditions.
You can specify multiple ignore_missing processors under the processors
section.
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