Package org.apache.hadoop.hdfs.shortcircuit
package org.apache.hadoop.hdfs.shortcircuit
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ClassDescriptionA reference to a memory-mapped region used by an HDFS client.DfsClientShm is a subclass of ShortCircuitShm which is used by the DfsClient.Manages short-circuit memory segments for an HDFS client.The ShortCircuitCache tracks things which the client needs to access HDFS block files via short-circuit.A ShortCircuitReplica object contains file descriptors for a block that we are reading via short-circuit local reads.A shared memory segment used to implement short-circuit reads.Identifies a DfsClientShm.Uniquely identifies a slot.