Em 5 de set de 2017 05:52, "Weichih Lu" <zxcv811013.cs...@g2.nctu.edu.tw> escreveu:
Dear all, I have a compute node with 64GB ram. And I set 50 hugepages wiht 1GB hugepage size. I used command "free", it shows free memory is about 12GB. And free hugepages is 50. Then I launch an instance with 16GB memory, set flavor tag : hw:mem_page_size=large. It show Error: No valid host was found. There are not enough hosts available. And I check nova-scheduler log. My compute is removed by RamFilter. I can launch an instance with 8GB memory successfully, or I can launch an instance with 16GB memory sucessfully by remove RamFilter. Does RamFilter only check free memory but not free hugepages? How can I solve this problem? I use openstack mitaka version. Did you enable NUMATopologyFilter? This is required for using huge pages[1]. 1: https://docs.openstack.org/nova/pike/admin/huge-pages.html Regards, Vagner Farias.
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