<html><body><p>I had similar issues. after a lot of searching, I finally figured that the compute node uses a location which has very little space left. By default, the instance_path point to /var/lib/nova/instances, on some of the machines, you may have very little space there if you use SSD to just to hold your OS. So I changed compute node configuration /etc/nova/nova.conf instances_path to point to a location which has plenty of space. Then you restart your compute node, that solved my problem. Try the same thing and see if the filters are happy. Also it is entirely possible that your neutron l2 agent may not work correctly.<br><br>good luck.<br><br>Tong Li<br>IBM Open Technology<br>Building 501/B205<br>litong01@us.ibm.com<br><br><img width="16" height="16" src="cid:1__=0ABBF523DFDB4C678f9e8a93df938690918c0AB@" border="0" alt="Inactive hide details for Irfan Sayed ---05/11/2016 12:39:27 AM---Hello, I am trying to integrate the Ironic service with other"><font color="#424282">Irfan Sayed ---05/11/2016 12:39:27 AM---Hello, I am trying to integrate the Ironic service with other openstack services.</font><br><br><font size="2" color="#5F5F5F">From: </font><font size="2">Irfan Sayed <irfu.sayed@gmail.com></font><br><font size="2" color="#5F5F5F">To: </font><font size="2">openstack@lists.openstack.org</font><br><font size="2" color="#5F5F5F">Date: </font><font size="2">05/11/2016 12:39 AM</font><br><font size="2" color="#5F5F5F">Subject: </font><font size="2">[Openstack] Error: No valid host was found. There are not enough hosts available</font><br><hr width="100%" size="2" align="left" noshade style="color:#8091A5; "><br><br><br><font size="4">Hello,</font><br><font size="4">I am trying to integrate the Ironic service with other openstack services. I am using liberty release of openstack.</font><br><br><font size="4">installed and configured the Ironic service. </font><br><font size="4">here is the setup:</font><br><br><font size="4">1: all openstack services are deployed on VM</font><br><font size="4">2: controller is on one VM (along with other services) and compute is on another VM</font><br><font size="4">3: one bare metal machine / desktop is there which i want to provision using the ironic service. </font><br><font size="4">4: nova compute service which runs on compute node is serving hypervisor for VMs and another nova compute service which is running on controller is acting hypervisor for bare metal node ... </font><br><font size="4">5: so actually i have hybrid model of VMs and physical server for openstack private cloud.</font><br><font size="4">6: i am using pxe_wol driver to boot the node. using ironic service also i can boot the node. </font><br><br><font size="4">so, this is the brief about the environment setup which i have as of now ...</font><br><font size="4">the issue is , when i am trying to launch the instance from horizon dashboard .. i am getting above error </font><br><br><font size="4">in the scheduler log, here is the output.</font><br><br><font size="4">2016-05-11 09:17:30.529 15559 INFO nova.filters [req-6c68100d-420f-43ad-878e-7819a43298e6 5c50e3803049470283f7a9d18e871096 28d5644376ba4d3bab3a30e09a0b28d1 - - -] Filter ExactRamFilter returned 0 hosts</font><br><font size="4">2016-05-11 09:17:30.530 15559 INFO nova.filters [req-6c68100d-420f-43ad-878e-7819a43298e6 5c50e3803049470283f7a9d18e871096 28d5644376ba4d3bab3a30e09a0b28d1 - - -] Filtering removed all hosts for the request with reservation ID 'r-mld1goh8' and instance ID '98c49d72-9d8e-4377-bbe0-6dbef187e75a'. Filter results: ['RetryFilter: (start: 3, end: 3)', 'AvailabilityZoneFilter: (start: 3, end: 3)', 'ComputeFilter: (start: 3, end: 3)', 'ComputeCapabilitiesFilter: (start: 3, end: 3)', 'ImagePropertiesFilter: (start: 3, end: 3)', 'ExactRamFilter: (start: 3, end: 0)']</font><br><br><font size="4">now i dont understand what is the meaning of "ExactRamFilter returned 0 hosts"</font><br><br><font size="4">please help </font><br><br><font size="4">Regards,</font><br><br><tt>_______________________________________________<br>Mailing list: </tt><tt><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a></tt><tt><br>Post to : openstack@lists.openstack.org<br>Unsubscribe : </tt><tt><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack</a></tt><tt><br></tt><br><br><BR>
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