Usage exceeded flood-stage watermark index has read-only-allow-delete when trying to delete document
Problem Description:
I have issue with deleting document from elasticsearch with command:
DELETE /indexName/_doc/1
When trying to fire above http request I am getting too_many_requests/12/disk usage exceeded flood-stage watermark index has read-only-allow-delete. And I understand that I need to increase disc size for my node to make it work or disable flood-stage watermark.
But when I saw read-only-allow-delete I thought that I can READ from given index and DELETE documents to free some space. But in realty I can only READ, why is that?
Does ...-allow-delete means something different or is it not related to rest call and I need to clean my node by ‘hand’?
Solution – 1
Your understanding is correct. You can READ the document but you can not DELETE single document from index. However, This will allow to delete entire index. You can read same explanation in this documentation.
Deleting documents from an index to release resources – rather than
deleting the index itself – can increase the index size over time.
When index.blocks.read_only_allow_delete is set to true, deleting
documents is not permitted. However, deleting the index itself
releases the read-only index block and makes resources available
almost immediately.