Hadoop DataNode

Table 1-138 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 1-139 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 1-140 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 1-141 Status and Performance Metrics for Generic Target

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