Hadoop Unified Dashboard

The Hadoop Unified Dashboard provides predefined list views for monitoring the performance of a Hadoop cluster.
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The Hadoop Unified Dashboard provides predefined list views for monitoring the performance of a Hadoop cluster.
Contents
Required Data Sources
The following table contains the monitors that you must activate to see data in the Hadoop Unified Dashboard.
Probe
Dashboard Chart
QoS
Subkey/Target
hadoop
Cluster Summary
QOS_HADOOP_CLUSTER_DECOM_NODES
*
QOS_HADOOP_CLUSTER_LIVE_NODES
*
QOS_HADOOP_CLUSTER_DEAD_NODES
*
HDFS Capacity
QOS_HADOOP_HDFS_CAPACITY_TOTAL
*
QOS_HADOOP_HDFS_CAPACITYUSED
*
QOS_HADOOP_HDFS_CAPACITYREMAINING
*
QOS_HADOOP_HDFS_BLOCKCAPACITY
*
QOS_HADOOP_HDFS_TOTALFILES
*
QOS_HADOOP_HDFS_SNAPSHOTS
*
QOS_HADOOP_HDFS_BLOCKSTOTAL
*
Host Summary
QOS_HADOOP_SYS_CPU_SYS
*
QOS_HADOOP_SYS_CPU_USER
*
QOS_HADOOP_SYS_CPU_WAIT
*
QOS_HADOOP_SYS_MEM_USED_PERCENT
*
Role CPU Summary
QOS_HADOOP_PROC_CPU_PERCENT
*
QOS_HADOOP_PROC_CPU_TOTAL
*
QOS_HADOOP_PROC_CPU_USER
*
QOS_HADOOP_PROC_CPU_SYS
*
An asterisk (*) means that the value for the first entry for the QoS is used.
Cluster Summary
This chart displays information about the datanodes in a Hadoop cluster.
Column
Description
Host
The name or IP address of the host system.
Target
The name of the host system.
Decom Nodes
The number of decommissioned datanodes.
Live Nodes
The number of live datanodes.
Dead Nodes
The number of dead datanodes.
HDFS Capacity
This chart displays information about a Hadoop Distributed File System (HDFS).
Column
Description
Host
The name or IP address of the host system.
Capacity Total
The total amount of HDFS capacity configured.
Capacity Used
The total amount HDFS capacity in use.
Capacity Remaining
The total amount of HDFS capacity remaining.
Block Capacity
The total amount of block capacity configured.
Total Files
The total number of files and directories in the HDFS.
Total Snapshots
The total number of HDFS snapshots that are taken.
Total Blocks
The total number of blocks.
Host Summary
This chart displays information about the host systems in a Hadoop cluster.
Column
Description
Host
The name or IP address of the host system.
CPU Kernel
The percent CPU use by the system level.
CPU User
The percent CPU use by the user level
CPU Wait
The percentage of CPU capacity that was idle due to waiting for an I/O request.
Memory Used
The percent total system memory that is in use.
Role CPU Summary
This chart displays information about CPU use by Hadoop system processes.
Column
Description
Host
The name or IP address of the host system.
Roles
The name of Hadoop system process.
Usage
The percent CPU use by the role.
Total Time
The total process CPU time.
User Time
The process CPU user time.
Kernel Time
The process CPU kernel time.