Rebuild search index not working after upgrading to XF2.3.4

Hi,
just like XF2.3.0, I'm again facing Rebuild search index failure on XF 2.3.4 because of high memory use.

here is the log:

Server error log

• XFES\Elasticsearch\BulkRequestException: Elasticsearch indexing error: Elasticsearch bulk action error (first error: [conversation-1] index [technofi_su.....] blocked by: [TOO_MANY_REQUESTS/12/disk usage exceeded flood-stage watermark, index has read-only-allow-delete block]
• src/addons/XFES/Elasticsearch/Api.php:487
• Generated by...

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