Apache Ambari Operations
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YARN - ResourceManager

Metrics to see status of ResourceManagers on the YARN cluster.

RowMetrics

Description

RPC STATS

RPC Avg Processing / Queue Time

Average time for processing/queuing a RPC call.

RPC Call Queue Length

The length of the RPC call queue.

RPC Slow calls

Number of slow RPC calls.

MEMORY USAGE

Heap Mem Usage

Current heap memory usage.

NonHeap Mem Usage

Current non-heap memory usage.

GC STATS

GC count

Accumulated GC count over time.

GcTime

Accumulated GC time over time.

LOG ERRORS

Log Error / Fatal

Number of ERROR/FATAL logs.

AUTHORIZATION & AUTHENTICATION FAILURES

RPC Authorization Failures

Number of authorization failures.

RPC Authentication Failures

Number of authentication failures.