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  1. Couchbase Server
  2. MB-26394

Detecting virtual machine live migrations like vmotion

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    Description

      Background

      A number of users deploy on VMware and use vMotion/DRS/Snapshot/etc.

      Problem
      When VMs are moved with vMotion, they can be stunned for up to 100 seconds. As a result operations will timeout and the node can be auto failed over. In these situation Support are forced to RCA the problem. A lot of times the DBA is not aware that vMotion is even happening.

      Suggestion

      I suspect there is no way to directly detect if a VM is being moved by vMotion (We should investigate in case I'm wrong) but there are indirect ways such as erlang detecting time jump. It would be good to display an alert to the use explain that there was some kind of CPU contention which might have been caused by issues at the hypervisor.

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              dfinlay Dave Finlay
              pvarley Patrick Varley (Inactive)
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