I'm running Juno. Here's my situation: 1) There are a bunch of cached images on the compute nodes (/var/lib/nova/instances/_base/) 2) I want to keep the images in the cache as long as possible (for performance reasons) 3) I want to be able to spawn instances with an uncached image
What I've observed is that if the cache is full, it won't automatically be cleaned up when a new image tries to be cached. Instead, I get a "no valid host" error when trying to boot a new instance. I've found the following relevant config parameters: image_cache_manager_interval remove_unused_base_images remove_unused_original_minimum_age_seconds These work, but don't really help me. I don't want time-based cache management, but on-demand cache management. Basically, if removed_unused_base_images is true, the oldest image should be removed from the cache to make room for the new one. Has anyone else encountered this situation? Maybe there's something I'm missing? Thanks, -Chris
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