九.Elasticsearch 如何处理写入的时候某个副本不可用-白红宇

九.Elasticsearch 如何处理写入的时候某个副本不可用

阅读量：507 次

发布时间：2019-03-06

本文共 255 字，大约阅读时间需要 1 分钟。

分布式系统中的副本分片管理策略

在分布式系统中，副本分片的管理是确保数据一致性的关键环节。当请求到达主分片后，集群会通过元数据信息获取所有副本分片的位置，进而对请求进行并行转发。这种机制能够显著提升系统的处理效率。

在实际运行过程中，可能会出现某些副本分片不可达的情况。为了确保系统的稳定性，主分片会向Master节点报告这些问题。Master节点会根据故障信息，指导集群删除不再可用的副本分片，并启动一个新的同步副本分片创建过程。这一流程确保了分片副本数量的一致性，从而保障了数据的可靠性和系统的整体稳定性。

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