Can we live migrate between compute node and controller node?

live-migration

asked 2017-03-02 04:52:09 -0600

ShubhamMeshram
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Can we live migrate between compute node and controller node?

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does your controller have nova-compute installed ? I mean, if it has, your question is can we live migrate between two compute nodes

omkar_telee ( 2017-03-02 05:50:41 -0600 )edit

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answered 2017-03-02 06:08:19 -0600

ShubhamMeshram
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updated 2017-03-07 00:21:17 -0600

This is what I get if I type the command on my controller node

controller@controller-ESPRIMO-P400:~$ openstack host list

+------------------------------------------------------+------------------+----------+

| Host Name................................................| Service.........| Zone....|

+------------------------------------------------------+------------------+----------+

| controller-ESPRIMO-P400........................| consoleauth | internal |

| controller-ESPRIMO-P400........................| scheduler.....| internal |

| controller-ESPRIMO-P400........................| conductor.....| internal |

| compute-HP-Compaq-6200-Pro-SFF-PC | compute.......| nova.....|

+------------------------------------------------------+------------------+----------+

So Im guessing the controller doesnt have the nova-compute installed in it.

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answered 2017-03-02 06:16:14 -0600

omkar_telee
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In Your case, you have only one compute node.

Live migration is functionality for moving an instance hosted on one compute node to another compute node. So, If you have multiple compute nodes, then only you can use live migration.

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So how can I include the compute node component(nova) in my controller node so that I have 2 compute nodes to do the VM Migration?

ShubhamMeshram ( 2017-03-02 23:45:39 -0600 )edit

You just go through the same installation steps as you did with the Compute node.

Bernd Bausch ( 2017-03-07 04:35:25 -0600 )edit

Use Installation guide: Step 1 : Follow all steps to setup environment Step 2: Install nova on compute node (skip controller setup steps) Step 3: Install Neutron component for compute node (Skip controller setup steps)

omkar_telee ( 2017-03-07 05:10:11 -0600 )edit

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Asked: 2017-03-02 04:52:09 -0600

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Last updated: Mar 07 '17

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