org.apache.hadoop.hdfs.server.datanode.metrics (Apache Hadoop HDFS 3.5.0 API)
Description: declaration: package: org.apache.hadoop.hdfs.server.datanode.metrics

# Package org.apache.hadoop.hdfs.server.datanode.metrics

package org.apache.hadoop.hdfs.server.datanode.metrics

- Related Packages
  Package
  Description
  org.apache.hadoop.hdfs.server.datanode
  org.apache.hadoop.hdfs.server.datanode.checker
  Datanode support for running disk checks.
  org.apache.hadoop.hdfs.server.datanode.erasurecode
  Datanode side striping + erasure coding related task processing.
  org.apache.hadoop.hdfs.server.datanode.fsdataset
  org.apache.hadoop.hdfs.server.datanode.web
  Data node HTTP classes.
- Class
  Description
  DataNodeDiskMetrics
  This class detects and maintains DataNode disk outliers and their latencies for different ops (metadata, read, write).
  DataNodeDiskMetrics.DiskLatency
  This structure is a wrapper over disk latencies.
  DataNodeMetricHelper
  DataNodeMetrics
  This class is for maintaining the various DataNode statistics and publishing them through the metrics interfaces.
  DataNodePeerMetrics
  This class maintains DataNode peer metrics (e.g. numOps, AvgTime, etc.) for various peer operations.
  FSDatasetMBean
  This Interface defines the methods to get the status of a the FSDataset of a data node.
  OutlierDetector
  A utility class to help detect resources (nodes/ disks) whose aggregate latency is an outlier within a given set.