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Meta data information for a block |
Added Classes and Interfaces | |
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BlockRecoveryCommand is an instruction to a data-node to recover the specified blocks. |
RecoveringBlock |
This is a block with locations from which it should be recovered and the new generation stamp which the block will have after successful recovery. |
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Checkpoint command. |
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Base class for name-node command. |
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The full set of RPC methods implemented by the Namenode. |
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Information sent by a subordinate name-node to the active name-node during the registration process. |
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Generic class specifying information which need to be sent to the name-node during the registration process. |
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Replica recovery information. |
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Base class for a server command. |
Changed Classes and Interfaces | |
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Base class for data-node command. |
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Protocol that a DFS datanode uses to communicate with the NameNode. |
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DatanodeRegistration class contains all information the name-node needs to identify and verify a data-node when it contacts the name-node. |
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An inter-datanode protocol for updating generation stamp |
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Protocol that a secondary NameNode uses to communicate with the NameNode. |
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NamespaceInfo is returned by the name-node in reply to a data-node handshake. |
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