CODEWITHSUNDEEP
openstackkvm
user1097153
user1097153

Reputation: 81

How to achieve high availability of instance in openstack

I wanted to launch an instance with high availability with out having risk factor i.e, an instance will be launched in multiple regions(zones) that to sync the state like database(master-slave). When some applications got installed, same should reflect in another region/zone also(mostly image format). Can we do that?.

I have checked some links based on this. I got a confusion after reading all the docs.

Exactly what is the difference among. VM replication & syncing is possiblein Openstack?

Upvotes: 0

Views: 878

Answers (1)

xan
xan

Reputation: 11

To the best of my knowledge, Open Stack does not support VM replication for now.

There is a component called Remus under the Xen project, which could potentially used by manual configuration as Open Stack supports Xen (https://www.xenproject.org/directory/directory/projects/70-remus.html). But it seems to be slow and unstable.

The newest approach is called reversed virtual machine replication (http://dl.acm.org/citation.cfm?id=2996894&CFID=918229768&CFTOKEN=85577813), this one seems to be very interesting and some critical problems in VM replication is well defined and elegantly solved. However, I did not find the open source project for it.

Upvotes: 1

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