Host Fields

host.architecture

Operating system architecture.

type: keyword

example: x86_64

core

host.boot.id

[beta] This field is beta and subject to change.

Linux boot uuid taken from /proc/sys/kernel/random/boot_id. Note the boot_id value from /proc may or may not be the same in containers as on the host. Some container runtimes will bind mount a new boot_id value onto the proc file in each container.

type: keyword

example: 88a1f0ed-5ae5-41ee-af6b-41921c311872

extended

host.cpu.usage

Percent CPU used which is normalized by the number of CPU cores and it ranges from 0 to 1.

Scaling factor: 1000.

For example: For a two core host, this value should be the average of the two cores, between 0 and 1.

type: scaled_float

extended

host.disk.read.bytes

The total number of bytes (gauge) read successfully (aggregated from all disks) since the last metric collection.

type: long

extended

host.disk.write.bytes

The total number of bytes (gauge) written successfully (aggregated from all disks) since the last metric collection.

type: long

extended

host.domain

Name of the domain of which the host is a member.

For example, on Windows this could be the host’s Active Directory domain or NetBIOS domain name. For Linux this could be the domain of the host’s LDAP provider.

type: keyword

example: CONTOSO

extended

host.hostname

Hostname of the host.

It normally contains what the hostname command returns on the host machine.

type: keyword

core

host.id

Unique host id.

As hostname is not always unique, use values that are meaningful in your environment.

Example: The current usage of beat.name.

type: keyword

core

host.ip

Host ip addresses.

type: ip

Note: this field should contain an array of values.

core

host.mac

Host MAC addresses.

The notation format from RFC 7042 is suggested: Each octet (that is, 8-bit byte) is represented by two [uppercase] hexadecimal digits giving the value of the octet as an unsigned integer. Successive octets are separated by a hyphen.

type: keyword

Note: this field should contain an array of values.

example: ["00-00-5E-00-53-23", "00-00-5E-00-53-24"]

core

host.name

Name of the host.

It can contain what hostname returns on Unix systems, the fully qualified domain name (FQDN), or a name specified by the user. The recommended value is the lowercase FQDN of the host.

type: keyword

core

host.network.egress.bytes

The number of bytes (gauge) sent out on all network interfaces by the host since the last metric collection.

type: long

extended

host.network.egress.packets

The number of packets (gauge) sent out on all network interfaces by the host since the last metric collection.

type: long

extended

host.network.ingress.bytes

The number of bytes received (gauge) on all network interfaces by the host since the last metric collection.

type: long

extended

host.network.ingress.packets

The number of packets (gauge) received on all network interfaces by the host since the last metric collection.

type: long

extended

host.pid_ns_ino

[beta] This field is beta and subject to change.

This is the inode number of the namespace in the namespace file system (nsfs). Unsigned int inum in include/linux/ns_common.h.

type: keyword

example: 256383

extended

host.type

Type of host.

For Cloud providers this can be the machine type like t2.medium. If vm, this could be the container, for example, or other information meaningful in your environment.

type: keyword

core

host.uptime

Seconds the host has been up.

type: long

example: 1325

extended

host.geo.*

geo

Fields describing a location.

host.os.*

os

OS fields contain information about the operating system.

host.risk.*

risk

Fields for describing risk score and level.