hi all: I have 3 compute nodes,but one(node 3) is down: root@controller:~/vms# nova-manage service list 2012-12-11 15:10:50 DEBUG nova.utils [req-a103d7d9-265c-4ef4-a11d-1dba1ccbc9e2 None None] backend <module 'nova.db.sqlalchemy.api' from '/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/api.pyc'> from (pid=14904) __get_backend /usr/lib/python2.7/dist-packages/nova/utils.py:494 Binary Host Zone Status State Updated_At nova-scheduler controller nova enabled :-) 2012-12-11 07:10:48 nova-network controller nova enabled XXX 2012-11-22 02:05:14 nova-compute controller nova enabled XXX 2012-11-21 03:44:34 nova-cert controller nova enabled :-) 2012-12-11 07:10:46 nova-consoleauth controller nova enabled :-) 2012-12-11 07:10:41 nova-volume controller nova enabled :-) 2012-12-11 07:10:48 nova-compute node1 nova enabled :-) 2012-12-11 07:10:42 nova-network node1 nova enabled XXX 2012-11-22 02:05:31 nova-compute node2 nova enabled :-) 2012-12-11 07:10:41 nova-network node2 nova enabled XXX 2012-11-22 02:05:31 *nova-compute node3 nova enabled XXX 2012-12-07 09:03:06*
When I am going to launch a instance, it often turns out that the task is launched on the unavailable node so the task fails: 2012-12-11 15:20:10 DEBUG nova.scheduler.filters.retry_filter [req-5b648097-33c8-426d-aea8-74be196f8f25 5eb9644d73544e04b347666d1156a002 e6621dd241764ddbaf9cd556882c5aa7] Previously tried hosts: [u'node1', u'node2']. (host=node3) from (pid=24208) host_passes /usr/lib/python2.7/dist-packages/nova/scheduler/filters/retry_filter.py:39 2012-12-11 15:20:10 DEBUG nova.scheduler.filters.ram_filter [req-5b648097-33c8-426d-aea8-74be196f8f25 5eb9644d73544e04b347666d1156a002 *e6621dd241764ddbaf9cd556882c5aa7] host 'node3': free_ram_mb:476 free_disk_mb:22528 does not have 4096 MB usable ram, it only has 970.0 MB usable ram. from (pid=24208) host_passes * /usr/lib/python2.7/dist-packages/nova/scheduler/filters/ram_filter.py:48 2012-12-11 15:20:10 DEBUG nova.scheduler.host_manager [req-5b648097-33c8-426d-aea8-74be196f8f25 5eb9644d73544e04b347666d1156a002 e6621dd241764ddbaf9cd556882c5aa7] Host filter function <bound method RamFilter.host_passes of <nova.scheduler.filters.ram_filter.RamFilter object at 0x43be250>> failed for node3 from (pid=24208) passes_filters /usr/lib/python2.7/dist-packages/nova/scheduler/host_manager.py:166 2012-12-11 15:20:10 WARNING nova.scheduler.driver [req-5b648097-33c8-426d-aea8-74be196f8f25 5eb9644d73544e04b347666d1156a002 e6621dd241764ddbaf9cd556882c5aa7] [instance: 557ade83-151c-425c-bf38-2770e25d0450] *Setting instance to ERROR state.* I do not know why, any suggestion? p.s. I use ubuntu 12.10 with Openstack 2012.2
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