Apache Ambari Operations
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System - Home

Metrics to see the overall status of the cluster.

RowMetrics

Description

OVERVIEW AVERAGES

Logical CPU Count Per Server

Average number of CPUs (including hyperthreading) aggregated for selected hosts.

Total Memory Per Server

Total system memory available per server aggregated for selected hosts.

Total Disk Space Per Server

Total disk space per server aggregated for selected hosts.

OVERVIEW - TOTALS

Logical CPU Count Total

Total Number of CPUs (including hyperthreading) aggregated for selected hosts.

Total Memory

Total system memory available per server aggregated for selected hosts.

Total Disk Space

Total disk space per server aggregated for selected hosts.

CPU

CPU Utilization -Average

CPU utilization aggregated for selected hosts.

SYSTEM LOAD

System Load - Average

Load average (1 min, 5 min and 15 min) aggregated for selected hosts.

MEMORY

Memory - Average

Average system memory utilization aggregated for selected hosts.

Memory - Total

Total system memory available aggregated for selected hosts.

DISK UTILITZATION

Disk Utilitzation - Average

Average disk usage aggregated for selected hosts.

Disk Utilitzation - Total

Total disk available for selected hosts.

DISK IO

Disk IO - Average

(upper chart)

Disk read/write counts (iops) co-related with bytes aggregated for selected hosts.

Disk IO - Average

(lower chart)

Average Individual read/write statistics as MBps aggregated for selected hosts.

Disk IO - Total

Sum of read/write bytes/sec aggregated for selected hosts.

NETWORK IO

Network IO - Average

Average Network statistics as MBps aggregated for selected hosts.

NETWORK PACKETS

Network IO - Total

Sum of Network packets as MBps aggregated for selected hosts.

Network Packets -Average

Average of Network packets as KBps aggregated for selected hosts.

SWAP/NUM PROCESSES

Swap Space - Average

Average swap space statistics aggregated for selected hosts.

Num Processes - Average

Average number of processes aggregated for selected hosts.

[Note]Note

  • Average implies sum/count for values reported by all hosts in the cluster. Example: In a 30 second window, if 98 out of 100 hosts reported 1 or more value, it is the SUM(Avg value from each host + Interpolated value for 2 missing hosts)/100.

  • Sum/Total implies the sum of all values in a timeslice (30 seconds) from all hosts in the cluster. The same interpolation rule applies.