I think reserved_host_memory is the amount of disk resources reserved so that
they are always available to host.
The disk usage gets reported back to the scheduler from nova-compute running
on the compute nodes. To prevent the disk resources from being considered as
available, this option is used to reserve disk space for that host.
Hence, I don't think nova should automatically detect system memory to
populate reserved_host_memory. Marking this bug as invalid.
** Changed in: nova
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1600143
Title:
property reserved_host_memory_mb size problem
Status in OpenStack Compute (nova):
Invalid
Bug description:
The file of nova.conf in compute node has a property
reserved_host_memory_mb .When I deploy compute node in used
computer,then I need to set the property reserved_host_memory_mb.
But most of time I don't kown how to set this property.
I see the code of nova,I found the default value of
reserved_host_memory_mb is 512M. I think nova project should automatic
detect system memory.
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