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ServiceWatch metric

Event Streams sends metrics to ServiceWatch. The metrics provided by basic monitoring are data collected at 1‑minute intervals.

Reference

For how to view metrics in ServiceWatch, refer to the ServiceWatch guide.

Basic Metrics

The following are the basic metrics for the Event Streams namespace.

The indicators whose names are displayed in bold below are the key indicators selected from the basic indicators provided by Event Streams. Major indicators are used to configure service dashboards that are automatically built for each service in ServiceWatch.

Each metric provides guidance in the user guide on which statistical values are meaningful when viewing that metric, and among the meaningful statistics, the values shown in bold are the primary statistics. In the service dashboard, you can view key metrics through primary statistical values.

OS Basic Metrics

Classification	Performance items	unit	Detailed description	meaningful statistics
CPU	CPU Usage	Percent	CPU usage	Total Average Maximum Minimum
Disk	Disk Usage	Percent	Disk 사용률	합계 평균 최대 최소
Disk	Disk Write Bytes	Bytes/Second	Write throughput on block device (bytes/second)	Total Average Maximum Minimum
Disk	Disk Read Bytes	Bytes/Second	Read throughput from block device (bytes/second)	Total Average Maximum Minimum
Disk	Disk Write Requests	Count/Second	Number of write requests on block device (requests per second)	Total Average Maximum Minimum
Disk	Disk Read Requests	Count/Second	Number of read requests on block device (requests per second)	Total Average Maximum Minimum
Disk	Average Disk I/O Queue Size	None	Average queue length of requests issued to the block device	Total Average Maximum Minimum
Disk	Disk I/O Utilization	Percent	The proportion of time the block device actually handled I/O operations	Total Average Maximum Minimum
Memory	Memory Usage	Percent	Memory usage	Total Average Maximum Minimum
Memory	Swap Out Bytes	Bytes/Second	Data transferred from memory to swap area (bytes/second)	Total Average Maximum Minimum
Memory	Swap Used Bytes	Bytes	Current swap space size	Total Average Maximum Minimum
Memory	Swap Cached Usage	Percent	Cache swap usage	Total Average Maximum Minimum
Memory	Swap Total Bytes	Bytes	Total swap space size configured on the system	Total Average Maximum Minimum
Memory	Swap In Bytes	Bytes/Second	Amount read from swap area into memory (bytes/second)	Total Average Maximum Minimum
Memory	Swap Usage	Percent	Current usage ratio of total swap space	Total Average Maximum Minimum
Memory	Swap Cached Bytes	Bytes	Size of pages that have been restored to memory but still have a copy in the swap area	Total Average Maximum Minimum
Memory	Swap Free Bytes	Bytes	Size of unused swap space	Total Average Maximum Minimum
Network	Network In Bytes	Bytes/Second	Received capacity (bytes/second) on the network interface	Total Average Maximum Minimum
Network	Network Out Bytes	Bytes/Second	Transmitted capacity (bytes/second) on the network interface	Total Average Maximum Minimum
Network	TCP Connections	Count/Second	Total number of TCP connections currently established correctly	Total Average Maximum Minimum
Network	Network In Packets	Count	Number of packets received on the network interface	Total Average Maximum Minimum
Network	Network Out Packets	Count	Number of packets transmitted on the network interface	Total Average Maximum Minimum
Network	Network In Dropped	Count	Number of packet drops received on the network interface	Total Average Maximum Minimum
Network	Network Out Dropped	Count	Number of packet drops transmitted from the network interface	Total Average Maximum Minimum
Network	Network In Errors	Count	Number of packet errors received on the network interface	Total Average Maximum Minimum
Network	Network Out Errors	Count	Number of packet errors transmitted from the network interface	Total Average Maximum Minimum
OS	OS Uptime	Seconds	Time elapsed (seconds) since the system was last booted	Total Average Maximum Minimum

Table. OS basic metrics

Event Streams basic metrics

Category	Performance items	unit	Detailed description	meaningful statistics
JVM	Threads Current	Count	Number of currently active threads	Total Average Maximum Minimum
JVM	JVM Memory Usage	Bytes	Current memory usage of the JVM	Total Average Maximum Minimum
JVM	Time spent in GC	None	Time the JVM spent on garbage collection (GC time seconds/min)	Total Average Maximum Minimum
JVM	Count in GC	Count/Minute	Number of times the JVM executed the garbage collection method	Total Average Maximum Minimum
kafka_controller	Offline Partitions	Count	Number of partitions that cannot be written to or read from because there is no active reader	Total Average Maximum Minimum
kafka_controller	Active Controller	Count	Number of active controllers in the cluster	Total Average Maximum Minimum
kafka_controller	Total of Topics	Count	Number of global topics observed in the active controller	Total Average Maximum Minimum
kafka_controller	Leader Elections	Count/Minute	Leader election during broker failure	Total Average Maximum Minimum
kafka_controller	Unclean Leader Elections	Count/Minute	Elect a broker with an OSR (out-of-sync replica) as the leader.	Total Average Maximum Minimum
kafka_network	Request Queue	Count	Request queue size	Total Average Maximum Minimum
kafka_server	Zookeeper Expired Sessions	Count/Minute	Zookeeper Expired Sessions	Total Average Maximum Minimum
kafka_server	Incoming Messages	Count/Second	Messages received by the broker	Total Average Maximum Minimum
kafka_server	Producer requests	Count/Second	Requests received by the broker (Produce)	Total Average Maximum Minimum
kafka_server	Consumer requests	Count/Second	Requests received by Broker (Fetch)	Total Average Maximum Minimum
kafka_server	Failed Fetch Requests	Count/Minute	Number of failed Fetches by Consumer	Total Average Maximum Minimum
kafka_server	Failed Produce Requests	Count/Minute	Number of failed requests by the producer	Total Average Maximum Minimum
kafka_server	Incoming Byte Rate	Bytes/Seconds	Byte transmission rate received from clients (per broker)	Total Average Maximum Minimum
kafka_server	Outgoing Byte Rate	Bytes/Seconds	Byte transmission rate sent to the client (per broker)	Total Average Maximum Minimum
kafka_server	Rejected Byte Rate	Bytes/Seconds	The number of bytes rejected per broker because the record batch size is larger than the max.message.bytes setting	Total Average Maximum Minimum
kafka_server	Online Partitions	Count	Total number of partitions	Total Average Maximum Minimum
kafka_server	Leader Partitions	Count	leader partition count	Total Average Maximum Minimum
kafka_server	Under Replicated Partitions	Count	Number of partitions with insufficient replica count	Total Average Maximum Minimum
kafka_server	Under Minisr Partitions	Count	Number of partitions whose synchronized replica count is less than minIsr	Total Average Maximum Minimum
Systemd	Active Systemd Unit	None	Service status	Total Average Maximum Minimum

Table. Event Streams basic metrics

Monitoring Metrics

How-to guides