# Elastic-Search Index not deleted but received ack. true
**URL:** https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111
**Category:** Elasticsearch
**Created:** [May 18, 2020, 1:18pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111 "2020-05-18T13:18:21Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@het](https://discuss.elastic.co/u/het)
#### Post date: [May 18, 2020, 1:18pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/1 "2020-05-18T13:18:21Z")
Delete index API of elastic has responded with acknowledgment = true but the actual index is not deleted.
We are using ES 5.3 Java TCP Client. We have 4 data nodes and 3 master nodes. In the elastic-search logs, we could not get an exception.
Overall we have approx.. 150 indexes with 2 primary shards and 1 replica. Each data node has 16 GB.
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### Author:  [@het](https://discuss.elastic.co/u/het)
#### Post date: [May 23, 2020, 12:50am UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/2 "2020-05-23T00:50:33Z")
@elasticsearch -- any update on this?
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [May 23, 2020, 9:31pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/3 "2020-05-23T21:31:30Z")
What does your node configuration look like? Do you have any non-default settings? Does the request return a successful response?
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### Author:  [@het](https://discuss.elastic.co/u/het)
#### Post date: [May 27, 2020, 1:12pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/4 "2020-05-27T13:12:29Z")
Request return ack. true. I have default setting for the nodes. we have changed refresh interval from default 10 sec to 30 second. Other then we did not change anything.
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [May 27, 2020, 1:31pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/5 "2020-05-27T13:31:52Z")
What do you have minimum\_master\_nodes set to?
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### Author:  [@het](https://discuss.elastic.co/u/het)
#### Post date: [May 27, 2020, 1:33pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/6 "2020-05-27T13:33:32Z")
> [@Christian\_Dahlqvist](#):
>
> minimum\_master\_nodes
We have set this discovery.zen.minimum\_master\_nodes property to 2
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### Author:  [@het](https://discuss.elastic.co/u/het)
#### Post date: [June 8, 2020, 11:58am UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/7 "2020-06-08T11:58:40Z")
Hi @Christian_Dahlqvist, Any update on this?
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [June 8, 2020, 12:02pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/8 "2020-06-08T12:02:13Z")
No, I have run out of ideas.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2020, 12:02pm UTC](https://discuss.elastic.co/t/elastic-search-index-not-deleted-but-received-ack-true/233111/9 "2020-07-06T12:02:14Z")
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