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2016-05-05 02:39:26 -0500 commented answer Memcached: All nodes or just controller?

And be aware to sync memcache if to use it as keystone token backend for a multi-node controller cluster

2016-03-19 01:00:27 -0500 commented question troubleshooting external network after upgrade to kilo

You might want to check if the new network_type and physical_network for ext net match your configs. After that try to recreate another ext router.

2016-03-11 21:06:14 -0500 commented question Open vSwitch Issue

It'd be helpful if neutron server and agent logs are included.

2015-07-17 00:40:19 -0500 answered a question How to implement openstack using 2/3 nodes

Alternatively you can deploy openstack on vagrant based vms from one single box.

2015-06-17 02:05:43 -0500 answered a question Nova spawning docker instance on kvm hypervisor not docker one

Did you create a glance image with docker container format? Did you boot a VM with the docker image? Have you tried to designate the hypervisor for docker containers using --availability-zone ?

2015-06-17 01:53:44 -0500 commented question how do i keep vm running after compute reboot without controller accessability

The best practice is not to reboot compute nodes during controller connection outage window. You can restart a VM by using virsh if using qemu/kvm. The VM however might not be able to get its IP unless DHCP agent is also running on that compute node.

2015-06-09 01:33:22 -0500 answered a question keystone error in kilo with ubuntu 14.04

Try to use mod_wsgi instead of eventlet. This link has details. http://docs.openstack.org/kilo/instal...

2015-05-03 12:34:29 -0500 answered a question Migration from older releases to Kilo

I have not seen any docs for code upgrade to Kilo from previous releases. Data modeling changes and Oslo library adoption are two top challenges. There are also substantial configuration changes from auth to wsgi. Sidegrade probably is a more doable option.

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2015-04-11 02:04:26 -0500 answered a question Maximum amount of instances deployed at same time

Many factors might impact max concurrency such as controllers' CPU clock speed, the cluster size and network topology. There is max concurrency cap for any given environment. Capacity planning and CLI/API call retry are recommended best practices.

2015-03-21 01:40:18 -0500 commented answer Can haproxy be deployed on one vm of tenant?

Haproxy does not require an agent. It's a virtual layer 7 LB and able to direct traffic to intended services running on the local VM or remote ones, as long as haproxy can access the IPs:Ports. For LBaaS data flow, this page might be able to help.

2015-03-17 01:54:19 -0500 answered a question Can haproxy be deployed on one vm of tenant?

Its perfectly OK to run haproxy on one or more VMs to load balance services running on those and/or other VMs. You can manage haproxy by using socket tools such as socat. Unlike LBaaS, the haproxy does not have native APIs however there are some "API wrappers" available.

2015-02-23 16:18:04 -0500 commented answer instance boot up hangs in multi-node setup

Also please check the image's grub.conf to make sure it does not depenf on vnc as the serial graphic devices. Otherwise the vnc service needs to be enabled.

2015-02-21 00:05:09 -0500 answered a question Why we need to integrate contrail with openstack ? does it provide any extra features than neutron ?

OpenContrail is a SDN solution which offers additional networking features such as vDNS, IPAM and security ACL on both subnets and individual VM levels. It has a centralized controller serving as control plane and a distributed virtual router serving as forwarding/data plane. OpenContrail vrouter operates on each hypervisor abd VM is attached to the vRouter by VRF (virtual Forward Routing). The forwarding plane supports MPLS over GRE, VXLAN, L2/3 unicase and L3 Multicase for interconnection between virtual and physical networks. This http://www.opencontrail.org/opencontrail-architecture-documentation/#section1 (page) has excellent architecture overview for OpenContrail.

2015-02-21 00:05:09 -0500 answered a question instance boot up hangs in multi-node setup

We ran into exactly the same issue. After upgrading to the latest C65 image with grub-0.97-93.el6.x86_64 and 2.6.32-504.1.3.el6.x86_64 kernel it resolved this issue.