ComfyUI Node: Clear Cache Key

Clear Cache Key:

The easy clearCacheKey node is designed to help you manage and optimize your cache by allowing you to clear specific cache entries based on a given key. This node is particularly useful when you need to free up memory or ensure that outdated or unnecessary data is removed from the cache. By providing a straightforward method to target and clear specific cache entries, this node helps maintain the efficiency and performance of your system. Whether you are working with large datasets or frequently updating models, the easy clearCacheKey node ensures that your cache remains clean and relevant, thereby enhancing the overall workflow.

Clear Cache Key Input Parameters:

anything

This parameter acts as a placeholder and is always set to *. It is used internally to match any input and does not require any specific value from you. Its primary function is to ensure that the node can be executed without any mandatory input values.

cache_key

The cache_key parameter specifies the key of the cache entry you wish to clear. By providing the exact key, you can target and remove specific entries from the cache, ensuring that only the relevant data is retained. This parameter accepts a string value, and the default value is *, which means all cache entries will be cleared if no specific key is provided. Using this parameter effectively can help you manage your cache more precisely and avoid unnecessary memory usage.

unique_id

This optional parameter allows you to specify a unique identifier for the cache entry. It can be useful when you have multiple entries with similar keys but need to distinguish between them. If not provided, the node will operate based on the cache_key alone. This parameter accepts a string value and can be left empty if not needed.

extra_pnginfo

Another optional parameter, extra_pnginfo, allows you to include additional metadata or information related to the cache entry. This can be useful for debugging or tracking purposes. Like unique_id, this parameter accepts a string value and can be left empty if not required.

Clear Cache Key Output Parameters:

None

The easy clearCacheKey node does not produce any output parameters. Its primary function is to perform an action (clearing cache entries) rather than generating data or results. Once the specified cache entries are cleared, the node completes its execution without returning any values.

Clear Cache Key Usage Tips:

• Use the cache_key parameter to target specific cache entries that you want to clear, ensuring that only unnecessary data is removed.
• If you have multiple cache entries with similar keys, utilize the unique_id parameter to distinguish between them and clear the correct entry.
• Include additional metadata using the extra_pnginfo parameter for better tracking and debugging of cache entries.
• Regularly clear outdated or unused cache entries to maintain optimal system performance and avoid memory bloat.

Clear Cache Key Common Errors and Solutions:

invalid <cache_key>

• Explanation: This error occurs when the specified cache_key does not exist in the cache.
• Solution: Ensure that the cache_key you provide matches an existing entry in the cache. Double-check for any typos or incorrect values.

KeyError: Key <cache_key> does not exist

• Explanation: This error indicates that the specified cache_key was not found in the cache.
• Solution: Verify that the cache_key is correct and exists in the cache. If necessary, use the unique_id parameter to further specify the cache entry.

Cache clearing has no effect

• Explanation: This issue arises when the cache remains unchanged after attempting to clear entries.
• Solution: Ensure that the cache_key and optional parameters (unique_id, extra_pnginfo) are correctly specified. If using the default * value, confirm that there are cache entries to be cleared.