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Disable concurrent search for composite agg (#6444)

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Signed-off-by: Sorabh Hamirwasia <hsorabh@amazon.com>
Co-authored-by: Sorabh Hamirwasia <hsorabh@amazon.com>
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Sorabh 2024-02-19 16:40:08 -08:00 committed by GitHub
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_search-plugins/concurrent-segment-search.md
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@ -82,6 +82,7 @@ The `search.concurrent.max_slice_count` setting can take the following valid val
The following aggregations do not support the concurrent search model. If a search request contains one of these aggregations, the request will be executed using the non-concurrent path even if concurrent segment search is enabled at the cluster level or index level.
- Parent aggregations on [join]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/join/) fields. See [this GitHub issue](https://github.com/opensearch-project/OpenSearch/issues/9316) for more information.
- `sampler` and `diversified_sampler` aggregations. See [this GitHub issue](https://github.com/opensearch-project/OpenSearch/issues/11075) for more information.
- Composite aggregations. See [this GitHub issue](https://github.com/opensearch-project/OpenSearch/issues/12331) for more information.
## Other considerations
@ -103,9 +104,6 @@ Non-concurrent search calculates the document count error and returns it in the
For more information about how `shard_size` can affect both `doc_count_error_upper_bound` and collected buckets, see [this GitHub issue](https://github.com/opensearch-project/OpenSearch/issues/11680#issuecomment-1885882985).
The [Anomaly Detection](https://opensearch.org/docs/latest/observing-your-data/ad/index/) plugin is not compatible with concurrent segment search. To use concurrent segment search with the Anomaly Detection plugin, disable concurrent segment search for the anomaly detection result indexes by applying the index-level setting. By default, the result indexes are specified by the `.opendistro-anomaly-results` alias. See [this GitHub issue](https://github.com/opensearch-project/OpenSearch/issues/12331) for more information.
{: .warning}
## Developer information: AggregatorFactory changes