nodetool setcachekeystosave

Sets the global number of keys saved by each cache for faster post-restart warmup.

Overrides the configured value of the row_cache_keys_to_save parameter in cassandra.yaml.

To change the current setting, use nodetool setcachekeystosave.

Synopsis

nodetool [<connection_options>] setcachekeystosave
<key-cache-keys-to-save> <row-cache-keys-to-save> <counter-cache-keys-to-save>

If a parameter has multiple forms, the following reference provides both the short form and long form, separated by a comma.

-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 file path to the file that stores JMX authentication credentials.
-u, --username jmx_username: The username for authenticating with secure JMX.

counter-cache-keys-to-save

Counter cache capacity in MB units:

key-cache-keys-to-save*

Corresponds to the key_cache_keys_to_save (deprecated) parameter in the cassandra.yaml file:

row-cache-keys-to-save

Corresponds to the row_cache_keys_to_save parameter in cassandra.yaml.

Set the global number of keys to 2147483647, row cache to 1073741824, and counter cache to 2147483647:
```
nodetool setcachekeystosave 2147483647 1073741824 2147483647
```

Ensure cache keys to save were updated:

nodetool getcachekeystosave

Key cache keys to save: 2147483647
Row cache keys to save: 1073741824
Counter cache keys to save: 2147483647