= split
:type: processor
:status: stable
:categories: ["Utility"]



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Breaks message batches (synonymous with multiple part messages) into smaller batches. The size of the resulting batches are determined either by a discrete size or, if the field `byte_size` is non-zero, then by total size in bytes (which ever limit is reached first).

```yml
# Config fields, showing default values
label: ""
split:
  size: 1
  byte_size: 0
```

This processor is for breaking batches down into smaller ones. In order to break a single message out into multiple messages use the xref:components:processors/unarchive.adoc[`unarchive` processor].

If there is a remainder of messages after splitting a batch the remainder is also sent as a single batch. For example, if your target size was 10, and the processor received a batch of 95 message parts, the result would be 9 batches of 10 messages followed by a batch of 5 messages.

== Fields

=== `size`

The target number of messages.


*Type*: `int`

*Default*: `1`

=== `byte_size`

An optional target of total message bytes.


*Type*: `int`

*Default*: `0`