nodetool removenode
Returns the status of current node removal. Forces completion of pending removal or removes identified node.
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Run this command only on nodes that are down because this command triggers cluster streaming. In large environments, the additional streaming activity causes more pending gossip tasks in the output of nodetool tpstats. Nodes can start to appear offline and might need to be restarted to clear up the backlog of pending gossip tasks. |
Use when nodetool decommission cannot be used. If the cluster does not use vnodes, adjust the tokens before running this command.
Synopsis
nodetool [<connection_options>] removenode
[--] <status> | <force> | <ID>
Syntax legend
| Syntax conventions | Description |
|---|---|
Italic, bold, or |
Syntax diagrams and code samples use one or more of these styles to mark placeholders for variable values. Replace placeholders with a valid option or your own user-defined value. In CQL statements, angle brackets are required to enclose data types in a set, list, map, or tuple.
Separate the data types with a comma.
For example: In Search CQL statements, angle brackets are used to identify the entity and literal value to overwrite the XML element in the schema and |
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Square brackets surround optional command arguments. Do not type the square brackets. |
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Parentheses identify a group to choose from. Do not type the parentheses. |
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A pipe separates alternative elements. Type any one of the elements. Do not type the pipe. |
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Indicates that you can repeat the syntax element as often as required. |
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Single quotation marks must surround literal strings in CQL statements.
Use single quotation marks to preserve upper case.
+
For Search CQL only: Single quotation marks surround an entire XML schema declaration, such as |
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Map collection.
Curly braces enclose maps ( |
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Ends a CQL statement. |
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Separate command line options from command arguments with two hyphens. This syntax is useful when arguments might be mistaken for command line options. |
Options
If an option has a short and long form, both forms are given, separated by a comma.
- -h, --host hostname
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The hostname or IP address of a remote node or nodes. When omitted, the default is the local machine.
- -p, --port jmx_port
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The JMX port number.
- -pw, --password jmxpassword
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The JMX password for authenticating with secure JMX. If a password is not provided, you are prompted to enter one.
- -pwf, --password-file jmx_password_filepath
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The filepath to the file that stores JMX authentication credentials.
- -u, --username jmx_username
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The username for authenticating with secure JMX.
- force
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Force completion of pending removal.
- ID
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UUID of node to remove.
- status
-
Show status of current node removal.
Examples
Determine UUID of the node to remove
nodetool status
Datacenter: DC1
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns (effective) Host ID Rack
UN 192.168.2.101 112.82 KB 256 31.7% 420129fc-0d84-42b0-be41-ef7dd3a8ad06 RAC1
DN 192.168.2.103 91.11 KB 256 33.9% d0844a21-3698-4883-ab66-9e2fd5150edd RAC1
UN 192.168.2.102 124.42 KB 256 32.6% 8d5ed9f4-7764-4dbd-bad8-43fddce94b7c RAC1
Remove down node with UUID
nodetool removenode d0844a21-3698-4883-ab66-9e2fd5150edd
RemovalStatus: No token removals in process.
Confirm node has been removed
nodetool status
The removed node no longer shows in the Host ID column.
Datacenter: DC1
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns (effective) Host ID Rack
UN 192.168.2.101 112.82 KB 256 37.7% 420129fc-0d84-42b0-be41-ef7dd3a8ad06 RAC1
UN 192.168.2.102 124.42 KB 256 38.3% 8d5ed9f4-7764-4dbd-bad8-43fddce94b7c RAC1