Troubleshooting a Failed Overcloud Deployment --------------------------------------------- If an Overcloud deployment has failed, the OpenStack clients and service log files can be used to troubleshoot the failed deployment. The following commands are all run on the Undercloud and assume a stackrc file has been sourced. Identifying Failed Component ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ In most cases, Heat will show the failed overcloud stack when a deployment has failed:: $ heat stack-list +--------------------------------------+------------+--------------------+----------------------+ | id | stack_name | stack_status | creation_time | +--------------------------------------+------------+--------------------+----------------------+ | 7e88af95-535c-4a55-b78d-2c3d9850d854 | overcloud | CREATE_FAILED | 2015-04-06T17:57:16Z | +--------------------------------------+------------+--------------------+----------------------+ Occasionally, Heat is not even able to create the stack, so the ``heat stack-list`` output will be empty. If this is the case, observe the message that was printed to the terminal when ``openstack overcloud deploy`` or ``heat stack-create`` was run. Next, there are a few layers on which the deployment can fail: * Orchestration (Heat and Nova services) * Bare metal provisioning (Ironic service) * Post-deploy configuration (Puppet) As Ironic service is in the middle layer, you can use its shell to guess the failed layer. Issue ``ironic node-list`` command to see all registered nodes and their current status, you will see something like:: +--------------------------------------+------+---------------+-------------+-----------------+-------------+ | UUID | Name | Instance UUID | Power State | Provision State | Maintenance | +--------------------------------------+------+---------------+-------------+-----------------+-------------+ | f1e26112-5fbd-4fc4-9612-ecce7a1d86aa | None | None | power off | available | False | | f0b8c105-f1d7-4059-a9a3-b050c3340340 | None | None | power off | available | False | +--------------------------------------+------+---------------+-------------+-----------------+-------------+ Pay close attention to **Provision State** and **Maintenance** columns in the resulting table. * If the command shows empty table or less nodes that you expect, or **Maintenance** is ``True``, or **Provision State** is ``manageable``, there was a problem during node enrolling and introspection. Please go back to these steps. For example, **Maintenance** goes to ``True`` automatically, if wrong power credentials are provided. * If **Provision State** is ``available`` then the problem occurred before bare metal deployment has even started. Proceed with `Debugging Using Heat`_. * If **Provision State** is ``active`` and **Power State** is ``power on``, then bare metal deployment has finished successfully, and problem happened during the post-deployment configuration step. Again, refer to `Debugging Using Heat`_. * If **Provision State** is ``wait call-back``, then bare metal deployment is not finished for this node yet. You may want to wait until the status changes. * If **Provision State** is ``error`` or ``deploy failed``, then bare metal deployment has failed for this node. Issue :: ironic node-show and look for **last_error** field. It will contain error description. If the error message is vague, you can use logs to clarify it:: sudo journalctl -u openstack-ironic-conductor -u openstack-ironic-api If you see wait timeout error, and node **Power State** is ``power on``, then try to connect to the virtual console of the failed machine. Use ``virt-manager`` tool for virtual machines and vendor-specific virtual console (e.g. iDRAC for DELL) for bare metal machines. Debugging Using Heat ^^^^^^^^^^^^^^^^^^^^ * Identifying the failed Heat resource List all the stack resources to see which one failed. :: $ heat resource-list overcloud +-----------------------------------+-----------------------------------------------+---------------------------------------------------+-----------------+----------------------+ | resource_name | physical_resource_id | resource_type | resource_status | updated_time | +-----------------------------------+-----------------------------------------------+---------------------------------------------------+-----------------+----------------------+ | BlockStorage | 9e40a1ee-96d3-4920-868d-683d3788e129 | OS::Heat::ResourceGroup | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | BlockStorageAllNodesDeployment | 2c453f6b-7378-44c8-a0ad-57de57d9c57f | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | BlockStorageNodesPostDeployment | | OS::TripleO::BlockStoragePostDeployment | INIT_COMPLETE | 2015-04-06T21:15:20Z | | CephClusterConfig | 1684e7a3-0e42-44fe-9db4-7543b742fbfc | OS::TripleO::CephClusterConfig::SoftwareConfig | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | CephStorage | 48b3460c-bf9a-4663-99fc-2b4fa01b8dc1 | OS::Heat::ResourceGroup | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | CephStorageAllNodesDeployment | 76beb3a9-8327-4d2e-a206-efe12f1613fb | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | CephStorageCephDeployment | af8fb02a-5bc6-468c-8fac-fbe7e5b2c689 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | CephStorageNodesPostDeployment | | OS::TripleO::CephStoragePostDeployment | INIT_COMPLETE | 2015-04-06T21:15:20Z | | Compute | e5e6ec84-197f-4bf6-b8ac-eb11fe494cdf | OS::Heat::ResourceGroup | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ComputeAllNodesDeployment | e6d44fbf-9683-4765-acbb-4a3d31c8fd48 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerNodesPostDeployment | e551e472-f2db-4468-b586-0374678d71a3 | OS::TripleO::ControllerPostDeployment | CREATE_FAILED | 2015-04-06T21:15:20Z | | ComputeCephDeployment | 673608d5-70d7-453a-ac78-7987bc2c0158 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ComputeNodesPostDeployment | 1078e3e3-9f6f-48b9-8961-a30f44098856 | OS::TripleO::ComputePostDeployment | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControlVirtualIP | 6402b396-84aa-4cf6-9849-305205755604 | OS::Neutron::Port | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | Controller | ffc45352-9708-486d-81ac-3b60efa8e8b8 | OS::Heat::ResourceGroup | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerAllNodesDeployment | f73c6e33-3dd2-46f1-9eca-0d2981a4a986 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerBootstrapNodeConfig | 01ce5b6a-794a-4828-bad9-49d5fbfd55bf | OS::TripleO::BootstrapNode::SoftwareConfig | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerBootstrapNodeDeployment | c963d53d-879b-4a41-a10a-9000ac9f02a1 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerCephDeployment | 2d4281df-31ea-4433-820d-984a6dca6eb1 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerClusterConfig | 719c0d30-a4b8-4f77-9ab6-b3c9759abeb3 | OS::Heat::StructuredConfig | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerClusterDeployment | d929aa40-1b73-429e-81d5-aaf966fa6756 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ControllerSwiftDeployment | cf28f9fe-025d-4eed-b3e5-3a5284a2aa60 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | HeatAuthEncryptionKey | overcloud-HeatAuthEncryptionKey-5uw6wo7kavnq | OS::Heat::RandomString | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | MysqlClusterUniquePart | overcloud-MysqlClusterUniquePart-vazyj2s4n2o5 | OS::Heat::RandomString | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | MysqlRootPassword | overcloud-MysqlRootPassword-nek2iky7zfdm | OS::Heat::RandomString | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ObjectStorage | 47327c98-533e-4cc2-b1f3-d8d0eedba822 | OS::Heat::ResourceGroup | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ObjectStorageAllNodesDeployment | 7bb691aa-fa93-4f10-833e-6edeccc61408 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ObjectStorageNodesPostDeployment | d4d16f39-384a-4d6a-9719-1dd9b2d4ff09 | OS::TripleO::ObjectStoragePostDeployment | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | ObjectStorageSwiftDeployment | afc87385-8b40-4097-b529-2a5bc81c94c8 | OS::Heat::StructuredDeployments | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | PublicVirtualIP | 4dd92878-8f29-49d8-9d3d-bc0cd44d26a9 | OS::Neutron::Port | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | RabbitCookie | overcloud-RabbitCookie-uthzbos3l66v | OS::Heat::RandomString | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | SwiftDevicesAndProxyConfig | e2141170-bb77-4509-b8bd-58447b2cd15f | OS::TripleO::SwiftDevicesAndProxy::SoftwareConfig | CREATE_COMPLETE | 2015-04-06T21:15:20Z | | allNodesConfig | cbd42692-fffa-4527-a519-bd4014ebf0fb | OS::TripleO::AllNodes::SoftwareConfig | CREATE_COMPLETE | 2015-04-06T21:15:20Z | +-----------------------------------+-----------------------------------------------+---------------------------------------------------+-----------------+----------------------+ In this example, notice how the **ControllerNodesPostDeployment** resource has failed. The **\*PostDeployment** resources are the configuration that is applied to the deployed Overcloud nodes. When these resources have failed it indicates that something went wrong during the Overcloud node configuration, perhaps when Puppet was run. * Show the failed resource :: $ heat resource-show overcloud ControllerNodesPostDeployment +------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Property | Value | +------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | attributes | {} | | description | | | links | http://192.168.24.1:8004/v1/cea2a0c78d2447bc9a0f7caa35c9224c/stacks/overcloud/ec3e3251-f949-4df9-92be-dbd37c6992a1/resources/ControllerNodesPostDeployment (self) | | | http://192.168.24.1:8004/v1/cea2a0c78d2447bc9a0f7caa35c9224c/stacks/overcloud/ec3e3251-f949-4df9-92be-dbd37c6992a1 (stack) | | | http://192.168.24.1:8004/v1/cea2a0c78d2447bc9a0f7caa35c9224c/stacks/overcloud-ControllerNodesPostDeployment-6kcqm5zuymqu/e551e472-f2db-4468-b586-0374678d71a3 (nested) | | logical_resource_id | ControllerNodesPostDeployment | | physical_resource_id | e551e472-f2db-4468-b586-0374678d71a3 | | required_by | BlockStorageNodesPostDeployment | | | CephStorageNodesPostDeployment | | resource_name | ControllerNodesPostDeployment | | resource_status | CREATE_FAILED | | resource_status_reason | ResourceUnknownStatus: Resource failed - Unknown status FAILED due to "None" | | resource_type | OS::TripleO::ControllerPostDeployment | | updated_time | 2015-04-06T21:15:20Z | +------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------+ The ``resource-show`` doesn't always show a clear reason why the resource failed. In these cases, logging into the Overcloud node is required to further troubleshoot the issue. * Logging into Overcloud nodes Use the nova client to see the IP addresses of the Overcloud nodes. :: $ nova list +--------------------------------------+-------------------------------------------------------+--------+------------+-------------+---------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+-------------------------------------------------------+--------+------------+-------------+---------------------+ | 18014b02-b143-4ca2-aeb9-5553bec93cff | ov-4tvbtgpv7w-0-soqocxy2w4fr-NovaCompute-nlrxd3lgmmlt | ACTIVE | - | Running | ctlplane=192.168.24.13 | | 96a57a46-1e48-4c66-adaa-342ee4e98972 | ov-rf4hby6sblk-0-iso3zlqmyzfe-Controller-xm2imjkzalhi | ACTIVE | - | Running | ctlplane=192.168.24.14 | +--------------------------------------+-------------------------------------------------------+--------+------------+-------------+---------------------+ Login as the ``heat-admin`` user to one of the deployed nodes. In this example, since the **ControllerNodesPostDeployment** resource failed, login to the controller node. The ``heat-admin`` user has sudo access. :: $ ssh heat-admin@192.168.24.14 While logged in to the controller node, examine the log for the ``os-collect-config`` log for a possible reason for the failure. :: $ sudo journalctl -u os-collect-config * Failed Nova Server ResourceGroup Deployments In some cases, Nova fails deploying the node in entirety. This situation would be indicated by a failed ``OS::Heat::ResourceGroup`` for one of the Overcloud role types such as Control or Compute. Use nova to see the failure in this case. :: $ nova list $ nova show The most common error shown will reference the error message ``No valid host was found``. Refer to `No Valid Host Found Error`_ below. In other cases, look at the following log files for further troubleshooting:: /var/log/nova/* /var/log/heat/* /var/log/ironic/* * Using SOS SOS is a set of tools that gathers information about system hardware and configuration. The information can then be used for diagnostic purposes and debugging. SOS is commonly used to help support technicians and developers. SOS is useful on both the undercloud and overcloud. Install the ``sos`` package and then generate a report:: $ sudo sosreport --all-logs .. _no-valid-host: No Valid Host Found Error ^^^^^^^^^^^^^^^^^^^^^^^^^ Sometimes ``/var/log/nova/nova-conductor.log`` contains the following error:: NoValidHost: No valid host was found. There are not enough hosts available. "No valid host was found" means that the Nova Scheduler could not find a bare metal node suitable for booting the new instance. This in turn usually means some mismatch between resources that Nova expects to find and resources that Ironic advertised to Nova. Start with checking `Ironic troubleshooting guide on this topic `_. If you're using advanced profile matching with multiple flavors, make sure you have enough nodes corresponding to each flavor/profile. Watch ``capabilities`` key in ``properties`` field for ``ironic node-show``. It should contain e.g. ``profile:compute``.