apache--hertzbeat/home/versioned_docs/version-1.6.x/help/linux.md

id, title, sidebar_label, keywords

id	title	sidebar_label	keywords
linux	Monitoring：Linux operating system monitoring	Linux operating system	open source monitoring tool open source linux monitoring tool monitoring linux metrics

Collect and monitor the general performance Metrics of Linux operating system.

Configuration parameter

Parameter name	Parameter help description
Monitoring Host	Monitored IPV4, IPV6 or domain name. Note⚠️Without protocol header (eg: https://, http://)
Monitoring name	Identify the name of this monitoring. The name needs to be unique
Port	Port provided by Linux SSH. The default is 22
Username	SSH connection user name, optional
Password	SSH connection password, optional
Collection interval	Interval time of monitor periodic data collection, unit: second, and the minimum interval that can be set is 30 seconds
Whether to detect	Whether to detect and check the availability of monitoring before adding monitoring. Adding and modifying operations will continue only after the detection is successful
Description remarks	For more information about identifying and describing this monitoring, users can note information here

Collection Metric

Metric set：basic

Metric name	Metric unit	Metric help description
hostname	none	Host name
version	none	Operating system version
uptime	none	System running time

Metric set：cpu

Metric name	Metric unit	Metric help description
info	none	CPU model
cores	cores	Number of CPU cores
interrupt	number	Number of CPU interrupts
load	none	Average load of CPU in the last 1/5/15 minutes
context_switch	number	Number of current context switches
usage	%	CPU usage

Metric set：memory

Metric name	Metric unit	Metric help description
total	Mb	Total memory capacity
used	Mb	User program memory
free	Mb	Free memory capacity
buff_cache	Mb	Memory occupied by cache
available	Mb	Remaining available memory capacity
usage	%	Memory usage

Metric set：disk

Metric name	Metric unit	Metric help description
disk_num	blocks	Total number of disks
partition_num	partitions	Total number of partitions
block_write	blocks	Total number of blocks written to disk
block_read	blocks	Number of blocks read from disk
write_rate	iops	Rate of writing disk blocks per second

Metric set：interface

Metric name	Metric unit	Metric help description
interface_name	none	Network card name
receive_bytes	byte	Inbound data traffic(bytes)
transmit_bytes	byte	Outbound data traffic(bytes)

Metric set：disk_free

Metric name	Metric unit	Metric help description
filesystem	none	File system name
used	Mb	Used disk size
available	Mb	Available disk size
usage	%	usage
mounted	none	Mount point directory