nodetool netstats
Provides network information about the host.
Synopsis
nodetool <options> netstats -H
Tarball and Installer No-Services path:
<installation_location>/resources/cassandra/bin
Short | Long | Description |
---|---|---|
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Hostname or IP address. |
|
|
Port number. |
|
|
Password file path. |
|
|
Password. |
|
|
Remote JMX agent username. |
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Display bytes in human readable form: KiB (kibibyte), MiB (mebibyte), GiB (gibibyte), TiB (tebibyte). |
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Separates an option from an argument that could be mistaken for an 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
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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.
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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