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Warn for dangerous IndexWriter settings

Description

Usually we let the user set all IndexWriter tuning settings in a different way in "batch" mode or in "transaction" mode.

MAX_FIELD_LENGTH and USE_COMPOUND_FILE are actually not impacting only performance but also how and what gets indexed,
so for MAX_FIELD_LENGTH we need to log a warning (because it sounds really wrong but someone may like it),
and throw an exception for USE_COMPOUND_FILE (because this would be dangerous).

Environment

None

Status

Assignee

Emmanuel Bernard

Reporter

Sanne Grinovero

Fix versions

Affects versions

3.1.0.Beta2

Priority

Trivial