# ScanError while scrolling more than 10k docs **URL:** \ **Category:** OpenSearch\ **Created:** [October 22, 2023, 6:20am UTC](https://forum.opensearch.org/t/scanerror-while-scrolling-more-than-10k-docs/16376 "2023-10-22T06:20:21Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Mans](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@Mans](https://forum.opensearch.org/u/Mans)\ **Post date:** [October 22, 2023, 6:20am UTC](https://forum.opensearch.org/t/scanerror-while-scrolling-more-than-10k-docs/16376/1 "2023-10-22T06:20:21Z")
**Versions** 2.5 **Describe the issue** : I am getting ScanError (ScanError(‘Scroll request has only succeeded on 7 (+5 skipped) shards out of 15.’)) when the search results is large (mostly when it is more than 10k). I have a few questions about it: 1. What is the underlying reasons for this issue ? 2. Is this related to number of shards or the number of search results ? 3. Is there a way to handle this by some elasticsearch property setting or query parameters or scaling or shard count/settings ? 4. I found a suggestion that can avoid this by using the flag (raise\_on\_error in the python library) but that will result in suppressing the exception and returning incomplete results. Please let me know what’s the correct way of solving this issue. **Configuration** : ### Node Config Number of nodes 3 Storage type EBS EBS volume type General Purpose (SSD) - gp2 EBS volume size 2000 GiB ### Dedicated master nodes Enabled Yes Instance type r6g.xlarge.search Number of nodes 3 ### Warm and cold data storage UltraWarm data nodes enabled No **Relevant Logs or Screenshots** :