NSURLCache does not respect diskCapacity
Originator: | pe.linked | ||
Number: | rdar://29945424 | Date Originated: | 10-Jan-2017 |
Status: | Open | Resolved: | |
Product: | iOS + SDK | Product Version: | 10.2 |
Classification: | Serious bug | Reproducible: | Always |
Area: Foundation Summary: NSURLCache does not respect the value of its `diskCapacity` property. Instead of limiting the on-disk cache to the specified size, it keeps growing uncontrollably, to the order of hundreds of megabytes or more. Steps to Reproduce: 1. Set the `diskCapacity` property of `NSURLCache.sharedURLCache` to 10 * 1024 * 1024 2. Create http requests (using NSURLSession), downloading data. 3. Continue downloading data, checking the value of `NSURLCache.sharedURLCache.currentDiskUsage` after each response received. Expected Results: `currentDiskUsage` should remain less than or equal to `diskCapacity`. Actual Results: `currentDiskUsage` grows (far) beyond `diskCapacity`. Version: 10.2 (14C92)
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Marked duplicate of rdar://29642285