nodetool setcachekeystosave
Sets the number of keys saved by each cache for faster post-restart warmup.
Sets the number of keys saved by each cache for faster post-restart warmup.
Synopsis
C:\> %CASSANDRA_HOME%\bin\nodetool <options> setcachekeystosave -- <key-cache-keys-to-save> <row-cache-keys-to-save>
| 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. |
| key-cache-keys-to-save | The number of keys from the key cache to save to the saved caches directory. To disable, set to 0. | |
| row-cache-keys-to-save | The number of keys from the row cache to save to the saved caches directory. To disable, set to 0. | |
| counter-cache-keys-to-save | The number of keys from the counter cache to saved to the saved caches directory. To disable, set to 0. | |
-- |
Separates an option from an argument that could be mistaken for a option. | |
Description
This command saves the specified number of key and row caches to the saved caches directory, which you specify in the cassandra.yaml. The key-cache-keys-to-save argument corresponds to the key_cache_keys_to_save in the cassandra.yaml, which is disabled by default, meaning all keys will be saved. The row-cache-keys-to-save argument corresponds to the row_cache_keys_to_save in the cassandra.yaml, which is disabled by default.
The location of the cassandra.yaml file depends on the type of
installation:
| Windows 3.x installations | C:\Program Files\DataStax-DDC\apache-cassandra\conf\cassandra.yaml |
CASSANDRA_HOME
On a standard Windows installation, the installation wizard creates
%CASSANDRA_HOME% as an environment variable.
| Windows 3.0 installations | C:\Program Files\Datastax Community\apache-cassandra\ |
| Windows 3.x installations | C:\Program Files\Datastax-DDC\apache-cassandra\ |