diff --git a/doc/source/troubleshooting.rst b/doc/source/troubleshooting.rst index 3fff5e7..d110789 100644 --- a/doc/source/troubleshooting.rst +++ b/doc/source/troubleshooting.rst @@ -3,9 +3,8 @@ Troubleshooting A list of common problems and their solutions. ----- - -**Problem**: Nodes hang while downloading the deploy ramdisk or kernel. +Nodes hang while downloading the deploy ramdisk or kernel +--------------------------------------------------------- **Cause**: Improper MTU settings on deployment interfaces. @@ -17,10 +16,10 @@ and that the DHCP server responding to PXE requests advertises the same MTU. Note that this MTU should be 50 bytes smaller than the physical MTU of the host cloud. ----- +Nodes are deployed, but cannot talk to each other +------------------------------------------------- -**Problem**: Nodes are deployed, but cannot talk to each other. In OpenStack -deployments, this often presents as rabbitmq connectivity issues +In OpenStack deployments, this often presents as rabbitmq connectivity issues from compute nodes. **Cause**: Improper MTU settings on deployed instances. @@ -30,10 +29,8 @@ being used on the deployed instances is 50 bytes smaller than the physical MTU of the host cloud. Again, for TripleO-based deployments the readme has details on how to do this. ----- - -**Problem**: After deploying to an OVB environment once, the nodes refuse to PXE -boot on subsequent deployments. +Nodes fail to PXE boot +---------------------- **Cause**: The nodes are not configured to PXE boot properly. @@ -44,9 +41,10 @@ nova-compute service has been restarted. If the ipxe-boot image is being used without the Nova patch, the baremetal instances must be rebuilt to the ipxe-boot image before subsequent deployments. ----- +Nodes fail to PXE boot 2 +------------------------ -**Problem**: Nodes fail to PXE boot. DHCP requests are seen on the undercloud +DHCP requests are seen on the undercloud VM, but responses never get to the baremetal instances. **Cause**: Neutron port security blocking DHCP from the undercloud. @@ -56,9 +54,8 @@ driver, or the port-security extension must be used to disable port-security on the appropriate ports. As of this writing that requires use of the port-security branch of OVB. ----- - -**Problem**: The BMC does not respond to IPMI requests. +The BMC does not respond to IPMI requests +----------------------------------------- **Cause**: Several. Neutron may not be configured to allow the BMC to listen on arbitrary addresses. The BMC deployment may have failed for some