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2019-09-09 01:50:17 -0500 commented question Error: No valid host was found. There are not enough hosts available

Addition information to above. I have installed controller and compute node on single server. I have checked the nova-scheduler

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2019-09-07 08:41:23 -0500 commented question Error: No valid host was found. There are not enough hosts available

LXC: Checking for cgroup 'memory' controller support : PASS

LXC: Checking for cgroup 'memory' controller mount-point : FAIL (Mount 'memory' cgroup controller (suggested at /sys/fs/cgroup/memory))

2019-09-07 08:38:09 -0500 asked a question Error: No valid host was found. There are not enough hosts available

HI,

I have verified the workarounds given in the blog regarding the same error "Error: No valid host was found. There are not enough hosts available" All looks fine in my system except one. I done the system validation using command "virt-host-validate" and its output given below. Memory and CPU mount point showing failed. Is this could be the reason for my issue ? IF so could any one please help me how to resolve that mount issue

root@mitaka-ctlnode:~# virt-host-validate QEMU: Checking for hardware virtualization : PASS QEMU: Checking if device /dev/kvm exists : PASS QEMU: Checking if device /dev/kvm is accessible : PASS QEMU: Checking if device /dev/vhost-net exists : PASS QEMU: Checking if device /dev/net/tun exists : PASS QEMU: Checking for cgroup 'memory' controller support : PASS QEMU: Checking for cgroup 'memory' controller mount-point : WARN (Mount 'memory' cgroup controller (suggested at /sys/fs/cgroup/memory)) QEMU: Checking for cgroup 'cpu' controller support : PASS QEMU: Checking for cgroup 'cpu' controller mount-point : WARN (Mount 'cpu' cgroup controller (suggested at /sys/fs/cgroup/cpu)) QEMU: Checking for cgroup 'cpuacct' controller support : PASS QEMU: Checking for cgroup 'cpuacct' controller mount-point : WARN (Mount 'cpuacct' cgroup controller (suggested at /sys/fs/cgroup/cpuacct)) QEMU: Checking for cgroup 'devices' controller support : PASS QEMU: Checking for cgroup 'devices' controller mount-point : WARN (Mount 'devices' cgroup controller (suggested at /sys/fs/cgroup/devices)) QEMU: Checking for cgroup 'net_cls' controller support : WARN (Enable CONFIG_NET_CLS_CGROUP in kernel Kconfig file) QEMU: Checking for cgroup 'blkio' controller support : PASS QEMU: Checking for cgroup 'blkio' controller mount-point : WARN (Mount 'blkio' cgroup controller (suggested at /sys/fs/cgroup/blkio)) QEMU: Checking for device assignment IOMMU support : PASS QEMU: Checking if IOMMU is enabled by kernel : WARN (IOMMU appears to be disabled in kernel. Add intel_iommu=on to kernel cmdline arguments) LXC: Checking for Linux >= 2.6.26 : PASS LXC: Checking for namespace ipc : PASS LXC: Checking for namespace mnt : PASS LXC: Checking for namespace pid : PASS LXC: Checking for namespace uts : PASS LXC: Checking for namespace net : PASS LXC: Checking for namespace user : PASS LXC: Checking for cgroup 'memory' controller support : PASS LXC: Checking for cgroup 'memory' controller mount-point : FAIL (Mount 'memory' cgroup controller (suggested at /sys/fs/cgroup/memory)) LXC: Checking for cgroup 'cpu' controller support : PASS LXC: Checking for cgroup 'cpu' controller mount-point : FAIL (Mount 'cpu' cgroup controller (suggested at /sys/fs/cgroup/cpu)) LXC: Checking for cgroup 'cpuacct' controller support : PASS LXC: Checking for cgroup 'cpuacct' controller mount-point : FAIL (Mount 'cpuacct' cgroup controller (suggested at /sys/fs/cgroup/cpuacct)) LXC: Checking for cgroup 'devices' controller support : PASS LXC: Checking for cgroup 'devices' controller mount-point : FAIL (Mount 'devices' cgroup controller (suggested at /sys/fs/cgroup/devices)) LXC: Checking for cgroup 'net_cls' controller support : WARN (Enable CONFIG_NET_CLS_CGROUP in kernel Kconfig file) LXC: Checking for cgroup 'freezer' controller support : PASS LXC: Checking for cgroup 'freezer' controller mount-point : WARN (Mount 'freezer' cgroup controller (suggested at /sys/fs/cgroup/freezer))

Thanks in advance, Karthik

2018-08-21 08:35:58 -0500 received badge  Popular Question (source)
2018-08-06 07:39:07 -0500 asked a question Unable to launch more than 1 instance in Openstack Mitaka

Hi,

I am having one control node and one compute node. I have installed cinder with 1 TB capacity and launched an instance using that cinder. But I am unable to create more than one VM as it is throwing error "No valid host was found. There are not enough hosts available" but I am having enough CPU, RAM and Volumes. Please help to understand where I am doing mistake in launching instance. My setup supports hardware virutalization(please find screen shot below)

Please find below virt-host-validate output

root@kvmos-ctlnode:~# virt-host-validate
  QEMU: Checking for hardware virtualization                                 : PASS
  QEMU: Checking if device /dev/kvm exists                                   : PASS
  QEMU: Checking if device /dev/kvm is accessible                            : PASS
  QEMU: Checking if device /dev/vhost-net exists                             : PASS
  QEMU: Checking if device /dev/net/tun exists                               : PASS
  QEMU: Checking for cgroup 'memory' controller support                      : PASS
  QEMU: Checking for cgroup 'memory' controller mount-point                  : WARN (Mount 'memory' cgroup controller (suggested at /sys/fs/cgroup/memory))
  QEMU: Checking for cgroup 'cpu' controller support                         : PASS
  QEMU: Checking for cgroup 'cpu' controller mount-point                     : WARN (Mount 'cpu' cgroup controller (suggested at /sys/fs/cgroup/cpu))
  QEMU: Checking for cgroup 'cpuacct' controller support                     : PASS
  QEMU: Checking for cgroup 'cpuacct' controller mount-point                 : WARN (Mount 'cpuacct' cgroup controller (suggested at /sys/fs/cgroup/cpuacct))
  QEMU: Checking for cgroup 'devices' controller support                     : PASS
  QEMU: Checking for cgroup 'devices' controller mount-point                 : WARN (Mount 'devices' cgroup controller (suggested at /sys/fs/cgroup/devices))
  QEMU: Checking for cgroup 'net_cls' controller support                     : WARN (Enable CONFIG_NET_CLS_CGROUP in kernel Kconfig file)
  QEMU: Checking for cgroup 'blkio' controller support                       : PASS
  QEMU: Checking for cgroup 'blkio' controller mount-point                   : WARN (Mount 'blkio' cgroup controller (suggested at /sys/fs/cgroup/blkio))
  QEMU: Checking for device assignment IOMMU support                         : PASS
  QEMU: Checking if IOMMU is enabled by kernel                               : WARN (IOMMU appears to be disabled in kernel. Add intel_iommu=on to kernel cmdline arguments)
   LXC: Checking for Linux >= 2.6.26                                         : PASS
   LXC: Checking for namespace ipc                                           : PASS
   LXC: Checking for namespace mnt                                           : PASS
   LXC: Checking for namespace pid                                           : PASS
   LXC: Checking for namespace uts                                           : PASS
   LXC: Checking for namespace net                                           : PASS
   LXC: Checking for namespace user                                          : PASS
   LXC: Checking for cgroup 'memory' controller support                      : PASS
   LXC: Checking for cgroup 'memory' controller mount-point                  : FAIL (Mount 'memory' cgroup controller (suggested at /sys/fs/cgroup/memory))
   LXC: Checking for cgroup 'cpu' controller support                         : PASS
   LXC: Checking for cgroup 'cpu' controller mount-point                     : FAIL (Mount 'cpu' cgroup controller (suggested at /sys/fs/cgroup/cpu))
   LXC: Checking for cgroup 'cpuacct' controller support                     : PASS
   LXC: Checking for cgroup 'cpuacct' controller mount-point                 : FAIL (Mount 'cpuacct' cgroup controller (suggested at /sys/fs/cgroup/cpuacct))
   LXC: Checking for cgroup 'devices' controller support                     : PASS
   LXC: Checking for cgroup 'devices' controller mount-point                 : FAIL (Mount 'devices' cgroup controller (suggested at /sys/fs/cgroup/devices))
   LXC: Checking for cgrou
p 'net_cls' controller support                     : WARN (Enable CONFIG_NET_CLS_CGROUP in kernel Kconfig file)
   LXC: Checking for cgroup 'freezer' controller support                     : PASS
   LXC: Checking for cgroup 'freezer' controller mount-point                 : WARN (Mount 'freezer' cgroup controller (suggested at /sys/fs/cgroup/freezer))

****Error:****

File "/usr/lib/python2 ...
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2016-12-17 11:13:40 -0500 answered a question How to install monasca

I am trying to install monasca in my ubuntu 14.04 mitaka openstack. My first doubt is that Monasca has to be installed on top on Mitaka (openstack) or we need to create VM in openstack and install monasca on that VM ?

Please help me to understand.

Thanks, KKK