# HighlightChunkSize

The maximum size, in bytes, of the chunks that text is broken into before highlighting. This size must be less than the value of the MaxFileUploadSize configuration parameter.

You can also set `HighlightChunkSize` to `-1`, which gives an unlimited chunk size. In this case, the entire document is highlighted as a single chunk.

You might want to increase the chunk size if some highlights are missed when you view documents by using the View action with the Boolean parameter set to `True`. If you are highlighting a Boolean expression (for example, `cat AND dog`), some highlights might be missed if one of the terms occurs only in one document chunk, and the other term only in another document chunk. Increasing the `HighlightChunkSize` ensures that these highlights are not missed.

Type: | Long
Default: | `393216`
Allowed Range: | Minimum: 8192 Maximum: the value of MaxFileUploadSize
Required: | No
Configuration Section: | Viewing
Example: | `HighlightChunkSize=24576`
See Also: | MaxFileUploadSize View action

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