Zookeeper

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Zookeeper

  • Zookeeper is an open-source project that provides services like maintaining configuration information, naming, providing distributed synchronization, etc.

  • Zookeeper has ephemeral nodes representing different region servers. Master servers use these nodes to discover available servers.

  • In addition to availability, the nodes are also used to track server failures or network partitions.

  • Clients communicate with region servers via zookeeper.

  • In pseudo and standalone modes, HBase itself will take care of zookeeper.

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