89fe504abf
If the nova compute image cache is on the same disk as the instance directory then the images in the cache will consume the same disk resource as the nova instances which can lead to disk overallocation. This patch adds a new config option [workarounds]/reserve_disk_resource_for_image_cache . If it is set the libvirt driver will reserve DISK_GB resources in placement for the actual size of the image cache. This is a low complexity solution with known limitations: * Reservation is updated long after the image is downloaded * This code allows the reservation to push the provider into negative available resource if the reservation + allocations exceed the total inventory. Change-Id: If874f018ea996587e178219569c2903c2ee923cf Closes-Bug: #1878024 |
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| .. | ||
| storage | ||
| volume | ||
| __init__.py | ||
| blockinfo.py | ||
| config.py | ||
| designer.py | ||
| driver.py | ||
| guest.py | ||
| host.py | ||
| imagebackend.py | ||
| imagecache.py | ||
| instancejobtracker.py | ||
| migration.py | ||
| utils.py | ||
| vif.py | ||