nodetool disablehintsfordc

Disable hints for a datacenter.

Synopsis

Disable hints for a datacenter.

C:\> %CASSANDRA_HOME%\bin\nodetool [options] disablehintsfordc [--] <datacenter>
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.
datacenter The data center to disable.
-- Separates an option from an argument that could be mistaken for a option.
Note:
  • If a username and password for RMI authentication are set explicitly in the cassandra-env.ps1 file for the host, then you must specify credentials.
  • nodetool disablehintsfordc operates on a single node in the cluster if -h is not used to identify one or more other nodes. If the node from which you issue the command is the intended target, you do not need the -h option to identify the target; otherwise, for remote invocation, identify the target node, or nodes, using -h.
  • [--] can be used to separate command-line options from the list of arguments, when the list might be mistaken for options.

Description

The nodetool disablehintsfordc command is used to turn off hints for a datacenter. This can be useful if there is a downed datacenter, but hints should continue on other datacenters. Another common case is during datacenter failover, when hints will put unnecessary pressure on the datacenter.

Examples

C:\> %CASSANDRA_HOME%\bin\nodetool -u cassandra -pw cassandra disablehintsfordc DC2
The location of the cassandra-env.ps1 is:
Windows 3.0 installations C:\Program Files\DataStax Community\apache-cassandra\conf\cassandra-env.ps1
Windows 3.x installations C:\Program Files\DataStax-DDC\apache-cassandra\conf\cassandra-env.ps1
CASSANDRA_HOME
Windows 3.0 installations C:\Program Files\Datastax Community\apache-cassandra\
Windows 3.x installations C:\Program Files\Datastax-DDC\apache-cassandra\
On a standard Windows installation, the installation wizard creates %CASSANDRA_HOME% as an environment variable.