cat nodeattrs

The nodeattrs command shows custom node attributes.

% curl 192.168.56.10:9200/_cat/nodeattrs
node    host    ip          attr  value
DKDM97B epsilon 192.168.1.8 rack  rack314
DKDM97B epsilon 192.168.1.8 azone us-east-1

The first few columns give you basic info per node.

node    host    ip
DKDM97B epsilon 192.168.1.8
DKDM97B epsilon 192.168.1.8

The attr and value columns can give you a picture of custom node attributes.

attr  value
rack  rack314
azone us-east-1

Below is an exhaustive list of the existing headers that can be passed to nodeattrs?h= to retrieve the relevant details in ordered columns. If no headers are specified, then those marked to Appear by Default will appear. If any header is specified, then the defaults are not used.

Aliases can be used in place of the full header name for brevity. Columns appear in the order that they are listed below unless a different order is specified (e.g., h=attr,value versus h=value,attr).

When specifying headers, the headers are not placed in the output by default. To have the headers appear in the output, use verbose mode (v). The header name will match the supplied value (e.g., pid versus p). For example:

% curl 192.168.56.10:9200/_cat/nodeattrs?v&h=name,pid,attr,value
name    pid   attr  value
DKDM97B 28000 rack  rack314
DKDM97B 28000 azone us-east-1