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Editor to share with you how Apache Skywalking uses OpenSearch to replace Elasticsearch, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Apache Skywalking announced the use of OpenSearch to replace Elasticsearch as a new back-end storage solution.

Earlier this year, Elasticsearch and Kibana announced that they would change their previous use of Apache License 2.0 to dual licenses: Server Side Public License (SSPL) and Elastic License. One stone stirred up thousands of waves, and Elastic's move sparked a heated debate in the open source community.

At the time, Apache Skywalking responded to Elasticsearch's license change by saying that "due to the incompatibility between SSPL and Apache License 2.0, we can no longer only use Elasticsearch. We will consider other storage schemes, such as InfluxDB, TiDB, and H2 Server, which are also licensed for Apache License 2.0", and even plan to build a storage scheme for our own use.

Last month, AWS announced the launch of the OpenSearch project, an open source branch of fork from Elasticsearch and Kibana. The OpenSearch project consists of OpenSearch (fork Elasticsearch 7.10.2) and OpenSearch Dashboards (fork Kibana 7.10.2), including enterprise security, alarm, machine learning, SQL, index state management and other functions. All the software in the OpenSearch project uses the Apache License 2.0 open source license agreement. Several organizations, including Red Hat, SAP, Capital One, and Logz.io, are also involved in maintaining this new Elasticsearch branch.

Apache Skywalking said that after the news was announced, they began to evaluate the storage scheme using OpenSearch as the SkyWalking. After many tests, it is now officially announced to use OpenSearch instead of Elastcsearch as the storage solution.

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