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Load balanced cells


In some situations the nova-cell process can become a bottle neck and not consume messages from the RPC system fast enough.


This blueprint sets out to enable multiple 'nova-cell' consumers from a single RPC queue.

It should work all scenarios, for example:

  • Global cell
nova-api instances put messages in the queue, multiple nova-cell instances push those messages down to child cells
  • Child cell
incoming command messages come from a parent cell into our RPC queue, multiple 'nova-cell' workers consume and process these messages.