nodetool netstats

Provides network information about the host.

Synopsis

install_location/bin/nodetool <options> netstats -H

Table 1. Options
Short	Long	Description
`-h`	`--host`	Hostname or IP address.
`-p`	`--port`	Port number.
`-pwf`	`--password-file`	Password file path.
`-pw`	`--password`	Password.
`-u`	`--username`	Remote JMX agent username.
`-H`	`--human-readable`	Display bytes in human readable form: KiB (kibibyte), MiB (mebibyte), GiB (gibibyte), TiB (tebibyte).
`--`	Separates an option from an argument that could be mistaken for a option.

Description

The default host is the connected host if the user does not include a host name or IP address in the command. The output includes the following information:

JVM settings
Mode
The operational mode of the node: JOINING, LEAVING, NORMAL, DECOMMISSIONED, CLIENT
Read repair statistics
Attempted
The number of successfully completed read repair operations.
Mismatch (blocking)
The number of read repair operations since server restart that blocked a query.
Mismatch (background)
The number of read repair operations since server restart performed in the background.
Pool name
Information about client read and write requests by thread pool size.
Active, pending, and completed number of commands and responses

Example

Get the network information of the local node:

nodetool netstats

The output is:

Mode: NORMAL
Not sending any streams.
Read Repair Statistics:
Attempted: 0
Mismatch (Blocking): 1
Mismatch (Background): 1
Pool Name                    Active   Pending      Completed   Dropped
Large messages                  n/a         0              0         0
Small messages                  n/a         0          23295         0
Gossip messages                 n/a         0        1853117         0