Enabling and configuring caching
Use CQL to enable or disable caching by configuring the caching table property.
Set parameters in the cassandra.yaml file to configure global caching properties:
-
How often DataStax Enterprise saves partition key caches to disk
-
How often DSE saves row caches to disk
Configuring the row_cache_size_in_mb (in the cassandra.yaml configuration file) determines how much space in memory the database allocates to store rows from the most frequently read partitions of the table.
Where is the cassandra.yaml file?
The location of the cassandra.yaml file depends on the type of installation:
| Installation Type | Location |
|---|---|
Package installations + Installer-Services installations |
|
Tarball installations + Installer-No Services installations |
|
Procedure
Set the table caching property that configures the partition key cache and the row cache.
CREATE TABLE users (
userid text PRIMARY KEY,
first_name text,
last_name text,
)
WITH caching = { 'keys' : 'NONE', 'rows_per_partition' : '120' };