In response to Elastic closing the source of the ELK Stack in March 2022, AWS launched OpenSearch and OpenSearch Dashboards as open-source alternatives to Elasticsearch and Kibana, leading to a burgeoning OpenSearch community. OpenSearch offers features like role-based access control and machine learning-powered anomaly detection, although it lacks a direct equivalent of Logstash, which can be replaced by lighter log processing tools like Fluentd. Companies such as AWS, Aiven, Opster, and Logz.io have developed managed services around OpenSearch to facilitate its deployment and scalability, each offering unique benefits and responsibilities. AWS offers automated scaling and management but requires users to maintain the integrity of their data pipeline. Aiven provides quick access to new OpenSearch features and a unified platform for managing various data technologies. Opster focuses on optimizing performance and cost efficiency, while Logz.io offers a SaaS solution that manages the entire data pipeline and enhances OpenSearch capabilities with built-in features. The choice of a managed OpenSearch service depends on factors like cost, resource availability, and the need for troubleshooting, with each option catering to different user priorities.