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wiki/concepts/OpenSearch.md
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title: "OpenSearch"
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type: concept
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tags: [Log-Analytics, AWS, Open-Source, Elasticsearch]
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date: 2026-04-14
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---
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## Definition
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OpenSearch 是 AWS 的开源日志分析和搜索引擎,基于 Elasticsearch 和 Kibana 的开源分支,提供托管服务。
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## Description
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OpenSearch 是 ELK Stack 的 AWS 托管替代方案,由 AWS 维护。与 Logz.io 等商业解决方案相比,OpenSearch 提供更低成本(约 $1,500/月 vs $4,000/月)和更高的可用性 SLA(99.9% vs 99.8%)。
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## Features
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- 托管日志分析服务
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- 与 ELK Stack 兼容
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- 自动快照备份
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- 支持细粒度访问控制
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## Cost Comparison(单农场、14天保留、每日 100GB)
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- Logz.io:约 $4,000/月
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- AWS OpenSearch:约 $1,500/月
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- 自托管 ELK:成本最低但维护量大
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## Connections
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- [[OpenSearch]] ← extends ← [[ELK Stack]]
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- [[Log Analytics]] ← implements ← [[OpenSearch]]
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