Scheduler shows "Not usable RAM error" after RAM up-gradation in compute node?

asked 2015-10-23 04:07:34 -0600

Vinoth gravatar image

updated 2015-10-23 04:09:32 -0600


Recently I have done RAM upgradation in my compute node from 16GB to 32GB. Now I am facing no host found errors. So I checked the scheduler log which shows following errors:

Paste #477244

DEBUG nova.scheduler.filters.ram_filter [req-ffc8b5b4-84df-4821-94a1-7b3fe6c52fce None] (juno-mega-compute03, juno-mega-compute03) ram:-15547 disk:604160 io_ops:0 instances:17 does not have 4096 MB usable ram, it only has 487.5 MB usable

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I believe RAM filter looks at available RAM. It probably uses the free command or something equivalent to check this. Have a look on the server, perhaps something is using up the 32GB.

Bernd Bausch gravatar imageBernd Bausch ( 2015-10-23 21:00:12 -0600 )edit