Using Ambari Core Services
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HDFS top n

Metrics that show top-level usage in HDFS.

Metrics that show
  • Which users perform most HDFS operations on the cluster

  • Which HDFS operations run most often on the cluster.

Table 1. HDFS top n metrics descriptions
Row Metrics Description
TOP N - OPERATIONS COUNT

Top N Total Operations Count

1 min sliding window

Represents the metrics that show the total operation count per operation for all users.

Shown for 1-minute interval.

Top N Total Operations Count

5 min sliding window

Represents the metrics that show the total operation count per operation for all users.

Shown for 5-minute interval.

Top N Total Operations Count

25 min sliding window

Represents the metrics that show the total operation count per operation for all users.

Shown for 25-minute interval.

TOP N - TOTAL OPERATIONS COUNT BY USER

Top N Total Operations Count by User

1 min sliding window

Represents the metrics that show the total operation count per user.

Shown for 1-minute intervals.

Top N Total Operations Count by User

5 min sliding window

Represents the metrics that show the total operation count per user.

Shown for 5-minute intervals.

Top N Total Operations Count by User

25 min sliding window

Represents the metrics that show the total operation count per user.

Shown for 25-minute intervals.

TOP N - OPERATIONS BY USER

TOP N - Operations by User

1 min sliding window

Represents the drilled down User x Op metrics against the TotalCount

Shown for 1-minute intervals.

TOP N - Operations by User

5 min sliding window

Represents the drilled down User x Op metrics against the TotalCount.

Shown for 5-minute intervals.

TOP N - Operations by User

25 min sliding window

Represents the drilled down User x Op metrics against the TotalCount.

Shown for 25-minute intervals.