Jason Tedor 2b47d67d95
Remove the index thread pool (#29556)
Now that single-document indexing requests are executed on the bulk
thread pool the index thread pool is no longer needed. This commit
removes this thread pool from Elasticsearch.
2018-04-18 09:18:08 -04:00

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[[breaking_70_settings_changes]]
=== Settings changes
==== Percolator
* The deprecated `index.percolator.map_unmapped_fields_as_string` setting has been removed in favour of
the `index.percolator.map_unmapped_fields_as_text` setting.
==== Index thread pool
* Internally, single-document index/delete/update requests are executed as bulk
requests with a single-document payload. This means that these requests are
executed on the bulk thread pool. As such, the indexing thread pool is no
longer needed and has been removed. As such, the settings
`thread_pool.index.size` and `thread_pool.index.queue_size` have been removed.