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Hadoop的HA机制浅析
Zookeeper在Hadoop的HA中的应用
非HA的弊端
:
HDFS集群的分布式存储是靠namenode节点(namenode负责响应客户端请求)来实现。在非HA集群中一旦namenode宕机,虽然元数据不会丢失,但整个集群将无法对外提供服务,导致HDFS服务的可靠性不高,这在实际应用场景中显然是不可行的。
HA机制
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原文地址:https://www.cnblogs.com/tongxupeng/p/10420797.html
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