Package org.apache.hadoop.hdfs.server.datanode.metrics
package org.apache.hadoop.hdfs.server.datanode.metrics
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ClassDescriptionThis class detects and maintains DataNode disk outliers and their latencies for different ops (metadata, read, write).This structure is a wrapper over disk latencies.This class is for maintaining the various DataNode statistics and publishing them through the metrics interfaces.This class maintains DataNode peer metrics (e.g. numOps, AvgTime, etc.) for various peer operations.This Interface defines the methods to get the status of a the FSDataset of a data node.A utility class to help detect resources (nodes/ disks) whose aggregate latency is an outlier within a given set.