All Content tagged with Amazon OpenSearch Service
Search, visualize, and analyze up to petabytes of text and unstructured data
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**Region**: ap-south-1
**OpenSearch Version**: 3.3
** Issue**:
Our OpenSearch domain is completely unreachable. The cluster health shows "-" in the AWS console and the domain is not accepting a...
I had my previous support case being unanswered for 11 days i closed it and opened two new ones they already exist for 20 hours and no answer from support. What can be done in this case if i on free t...
N_AgarwalEXPERT
published 22 days ago0 votes72 views
This article provides a decision framework for AWS customers running Amazon OpenSearch Service indices exceeding 500 GB per shard who question whether reindexing is necessary when search latency is ac...
I initiated a customer config change at ~23:30 UTC on 2026-05-15 to change my OpenSearch instance type from `t3.small.search` to `t3.medium.search` on a single-node domain. The change has been stuck i...
**Background**
We are building a small internal autoscaler that increases the per-node EBS volume size automatically when storage usage gets high.
On 2026-05-11 a routine EBS volume size increase re...
N_AgarwalEXPERT
published a month ago1 votes121 views
This article provides a detailed, step-by-step guide for AWS customers who have very large indices (>1 TB) in their OpenSearch cluster and want to reduce shard size for better performance and stabilit...
Domain Name: imdelastic-staging
Change ID: 40104c79-01a1-4a06-81ef-0b3190ee4bdf
Modification Type: EBS volume type change from gp2 to gp3
Start Time: April 30th, 2026 at 17:45 Bangkok time (10:45 UTC)...
N_AgarwalEXPERT
published a month ago0 votes175 views
Amazon OpenSearch Service now supports OpenSearch 3.x, which introduces significant performance improvements through Apache Lucene 10, JVM 21, and enhanced vector search capabilities. Upgrading from 2...
We are facing an issue with our Amazon OpenSearch Service domain.
Details:
Domain Name: ghn-anon-elasticsearch
Region: Ireland (eu-west-1)
Update Trigger Time: Yesterday, 5th May - around 11:30 AM In...
We are observing inconsistent result counts for identical k-NN vector search queries in Amazon OpenSearch Service.
### Issue
The same k-NN query, executed against the same index with the same query v...
Case ID: ****************
I submitted a case for a billing dispute that has been "Unassigned" for 8 days with no response, and my bill is due. Urgently needs a resolution before too much more time pa...