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GUC Parameters of the GaussDB(DWS) Database/
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Disk Caching
Updated on 2025-06-12 GMT+08:00
Disk Caching
The following parameters are supported only by clusters of version 9.1.0 or later.
enable_disk_cache
Parameter description: Specifies whether to enable file caching. Setting this parameter to on only takes effect when enable_aio_scheduler is set to on and obs_worker_pool_size is greater than or equal to 4.
Type: USERSET
Value range: Boolean
Default value: off
enable_disk_cache_recovery
Parameter description: Specifies whether file caching can be restored when the cluster is restarted.
Type: USERSET
Value range: Boolean
Default value: off
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