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2026-09-22
OpenSearch — an open data search and analytics system most often used for centralized log storage. It is a fork of Elasticsearch and Kibana: in 2021, after Elastic changed the license to SSPL and the Elastic License, …
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Metrics show something is wrong with the system: response time has increased, memory is exhausted, the share of successful requests has dropped. To understand why this happened, you need logs — records of events written …
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