nodetool removenode

Shows the status of current node removal; forces completion of pending removal, or removes identified node.

Shows the status of current node removal; forces completion of pending removal, or removes identified node.

Use when the node is down and nodetool decommission cannot be used. If the cluster does not use vnodes, adjust the tokens before running this command.

Warning: Run this command only on nodes that are down. 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.

Synopsis

nodetool [connection_options] removenode
[--] status | force | host_ID
Table 1. Legend
Syntax conventions Description
UPPERCASE Literal keyword.
Lowercase Not literal.
Italics Variable value. Replace with a valid option or user-defined value.
[ ] Optional. Square brackets ( [ ] ) surround optional command arguments. Do not type the square brackets.
( ) Group. Parentheses ( ( ) ) identify a group to choose from. Do not type the parentheses.
| Or. A vertical bar ( | ) separates alternative elements. Type any one of the elements. Do not type the vertical bar.
... Repeatable. An ellipsis ( ... ) indicates that you can repeat the syntax element as often as required.
'Literal string' Single quotation ( ' ) marks must surround literal strings in CQL statements. Use single quotation marks to preserve upper case.
{ key:value } Map collection. Braces ( { } ) enclose map collections or key value pairs. A colon separates the key and the value.
<datatype1,datatype2> Set, list, map, or tuple. Angle brackets ( < > ) enclose data types in a set, list, map, or tuple. Separate the data types with a comma.
cql_statement; End CQL statement. A semicolon ( ; ) terminates all CQL statements.
[ -- ] Separate the command line options from the command arguments with two hyphens ( -- ). This syntax is useful when arguments might be mistaken for command line options.
' <schema> ... </schema> ' Search CQL only: Single quotation marks ( ' ) surround an entire XML schema declaration.
@xml_entity='xml_entity_type' Search CQL only: Identify the entity and literal value to overwrite the XML element in the schema and solrconfig files.

Definition

The short form and long form parameters are comma-separated.

Connection options

-h, --host hostname
The hostname or IP address of a remote node or nodes. When omitted, the default is the local machine.
-p, --port jmx_port
The JMX port number.
-pw, --password jmxpassword
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
The filepath to the file that stores JMX authentication credentials.
-u, --username jmx_username
The user name for authenticating with secure JMX.

Command arguments

force
Force completion of pending removal.
ID
Remove provided ID.
status
Show status of current node removal.

Examples

Determine UUID of the node to remove 

nodetool removenode 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

View status of operation to remove node

nodetool removenode status
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