nodetool setcachekeystosave
Sets the global number of keys saved by each cache for faster post-restart warmup.
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Overrides the configured value of the row_cache_keys_to_save parameter in |
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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>Definition
The short- and long-form options are comma-separated.
Connection options
- -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.
Command arguments
- counter-cache-keys-to-save
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Counter cache capacity in MB units.
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number: the number of keys saved by each cache
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0: disable counter caching and save all keys.
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- key-cache-keys-to-save
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Corresponds to the
key_cache_keys_to_save(deprecated) parameter in thecassandra.yamlfile.-
number: the number of keys saved by each cache
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0: disable counter caching and save all keys.
Default: 0 (disabled, meaning all keys will be saved)
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- row-cache-keys-to-save
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Corresponds to the row_cache_keys_to_save parameter in
cassandra.yaml.-
number: The number of keys saved by each cache
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0: Disable counter caching
Default: 0 (disabled).
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Examples
Set the global number of keys to 2147483647, row cache to 1073741824, and counter cache to 2147483647
nodetool setcachekeystosave 2147483647 1073741824 2147483647Ensure cache keys to save were updated.
nodetool getcachekeystosaveResults
Key cache keys to save: 2147483647
Row cache keys to save: 1073741824
Counter cache keys to save: 2147483647