You decide to create a cluster which runs HDFS in High Availability mode with automatic failover, using Quorum Storage. What is the purpose of ZooKeeper in such a configuration?

Question

Options

• AIt only keeps track of which NameNode is Active at any given time
• BIt monitors an NFS mount point and reports if the mount point disappears
• CIt both keeps track of which NameNode is Active at any given time, and manages the Edits file.
• DIf only manages the Edits file, which is log of changes to the HDFS filesystem
• EClients connect to ZooKeeper to determine which NameNode is Active

• A
  69% (20)
• B
  7% (2)
• C
  3% (1)
• D
  17% (5)
• E
  3% (1)

Explanation

Availability-Guide.pdf(page 15)

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