nodetool decommission
Causes a live node to decommission itself, streaming its data to the next node on the ring to replicate appropriately.
Decommission puts a node in LEAVING state.
The leaving node keeps its CQL port open and continues to serve read and write queries while the decommission process streams data to other nodes.
When the decommission finishes, the node stops providing CQL service and gossip while leaving the JVM alive.
When decommissioning a DSEFS node, you must unmount DSEFS before removing that node.
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Synopsis
nodetool [<connection_options>] decommission
[-f]
Syntax legend
| Syntax conventions | Description |
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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, use angle brackets 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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Use single quotation marks to 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.
- -f, --force
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Force decommission of the node even when it reduces the number of replicas to below configured RF.
Examples
Decommission a remote node
nodetool -h 10.46.123.12 decommission