Hadoop DataNode

Table 1-122 Supported Configuration Metrics for Hosted Target

Metric Group Name Unit Description
Resource Allocation Total CPUs N/A Total number of CPUs allocated or available to the entity
Resource Allocation Total Memory GB Total amount of usable Physical RAM allocated or available to the entity

Table 1-123 Supported Status and Performance Metrics for Hadoop DataNode

Metric Group Category Name Unit Description

Read Write Activity

Load

Reads from Local Client

ops/sec

Rate of read operations from local client

Read Write Activity

Load

Writes from Local Client

ops/sec

Rate of write operations from local client

Read Write Activity

Load

Reads from Remote Client

ops/sec

Rate of read operations from remote client

Read Write Activity

Load

Writes from Remote Client

ops/sec

Rate of write operations from remote client

Read Write Activity

Response

Average Block Write Time

ms

Average time for block write operations in milliseconds

Read Write Activity

Response

Average Block Read Time

ms

Average time for block read operations in milliseconds

Read Write Activity

Response

Average Block Copy Time

ms

Average time for block copy operations in milliseconds

Read Write Activity

Response

Average Block Replace Time

ms

Average time for block replace operations in milliseconds

Resource Utilization

Capacity

HDFS Storage Capacity Used

GB

Storage capacity used by HDFS files in GB

Resource Utilization

Capacity

Non-HDFS Storage Capacity Used

GB

Storage capacity used by non-HDFS files in GB

Resource Utilization

Capacity

HDFS Storage Capacity

GB

Total configured HDFS storage capacity in GB

Resource Utilization

Capacity

Cache Used

MB

Cache used in MB

Resource Utilization

Capacity

Cache Capacity

MB

Capacity of HDFS cache in MB

Resource Utilization

Load

Blocks Cached

blocks/sec

Rate at which the DataNode cached blocks

Resource Utilization

Load

Blocks Failed to Cache

blocks/sec

Rate at which the DataNode failed to cache blocks

JVM Memory Usage

Load

Non-Heap Memory Usage

MB

Non-heap memory used by JVM in MB

JVM Memory Usage

Load

Heap Memory Usage

MB

Heap memory used by JVM in MB

JVM Memory Usage

Load

Maximum Memory

MB

Maximum memory in MB

JVM Threads

Load

Blocked Threads

NA

Number of blocked threads in JVM

JVM Threads

Load

New Threads

NA

Number of new threads in JVM

JVM Threads

Load

Runnable Threads

NA

Number of runnable threads in JVM

JVM Threads

Load

Terminated Threads

NA

Number of terminated threads in JVM

JVM Threads

Load

Timed Waiting Threads

NA

Number of timed waiting threads in JVM

JVM Threads

Load

Waiting Threads

NA

Number of waiting threads in JVM

Block Operations

Response

Average Block Checksum Time

ms

Average time of block checksum operations in milliseconds

Block Operations

Response

Average Block Reports Time

ms

Average time of block report operations in milliseconds

Block Operations

Response

Average Flush Time

ns

Average flush time in nanoseconds

Block Operations

Response

Average Filesync Time

ns

Average filesync time in nanoseconds

Block Operations

Response

Average Packet Acknowledge Round Trip Time

ns

Average time for packet acknowledgement round trip in nanoseconds

Block Operations

Response

Data Packet Network Blocked Time

ns

Average time of data packet blocked on network in nanoseconds

Block Operations

Response

Data Packet Transfer Time

ns

Average transfer time of data packets in nanoseconds

Block Operations

Capacity

Transceivers

NA

Number of transceivers

RPC Activity

Load

RPC Queue Length

NA

Length of the RPC queue

RPC Activity

Response

Average RPC Processing Time

ms

Average RPC processing time in milliseconds

RPC Activity

Response

Average RPC Queue Time

ms

Average RPC queue time in milliseconds

Table 1-124 Supported Status and Performance Metrics for Hosted Target

Metric Group Category Name Unit Description
CPU Utilization CPU Usage sec All CPUs usage during the interval
CPU N/A CPU Utilization % Percentage of CPU that was utilized
CPU N/A Interval sec Interval of metric collection
Memory Load Memory Usage GB Memory used in GB
Memory Utilization Memory Utilization % Percentage of memory that is utilized
Memory N/A Interval sec Interval of metric collection

Table 1-125 Status and Performance Metrics for Generic Target

Metric Group Category Name Unit Description
Response Availability Status N/A Status of the target