Commit fd37fcf8 authored by Cleveland Bledsoe Jr's avatar Cleveland Bledsoe Jr Committed by Marcia Ramos

Add details about rejection messages

parent f4d98768
......@@ -1080,6 +1080,12 @@ If `ElasticCommitIndexerWorker` Sidekiq workers are failing with this error duri
- To decrease the indexing throughput you can decrease `Bulk request concurrency` (see [Advanced Search settings](#advanced-search-configuration)). This is set to `10` by default, but you change it to as low as 1 to reduce the number of concurrent indexing operations.
- If changing `Bulk request concurrency` didn't help, you can use the [queue selector](../administration/operations/extra_sidekiq_processes.md#queue-selector) option to [limit indexing jobs only to specific Sidekiq nodes](#index-large-instances-with-dedicated-sidekiq-nodes-or-processes), which should reduce the number of indexing requests.
### Indexing is very slow or fails with `rejected execution of coordinating operation` messages
Bulk requests are getting rejected by the Elasticsearch node(s) likely due to load and lack of available memory.
Ensure that your Elasticsearch cluster meets the [system requirements](#system-requirements) and has enough resources
to perform bulk operations. See also the error ["429 (Too Many Requests)"](#indexing-fails-with-error-elastic-error-429-too-many-requests).
### Access requirements for the self-managed AWS OpenSearch Service
To use the self-managed AWS OpenSearch Service with GitLab, configure your instance's domain access policies
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