Wido den Hollander created CLOUDSTACK-8629:
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Summary: Use Ceph RBD storage pool for writing HA heartbeats
Key: CLOUDSTACK-8629
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8629
Project: CloudStack
Issue Type: Improvement
Security Level: Public (Anyone can view this level - this is the default.)
Components: KVM
Reporter: Wido den Hollander
Assignee: Wido den Hollander
Fix For: Future
Just like NFS we should write a heartbeat for each Instance to RADOS.
Each hosts could write a simple object like: <pool>/<host ip>
They simply write the timestamp to the object encoded in JSON.
Other hosts can read that object and see if the host wrote the timestamp
lately. If it did it means that it is still up and running and Fencing is not
needed or required.
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