anchor.diff:  
   === Loading State
   
  -Our `onStart` implementation contained a method to load the snapshot. Now we have seen how the snapshot is written, we
  -can look at how it is loaded. The `Image` provided to the `onStart` has a method that will indicate if there is no more
  -data available. However, application code should also encode enough information that the end of the stream can be
  -detected from the store messages. The two approaches can be used to do sanity checking that all the data is received.
  +Our `onStart` implementation contained a method to load the snapshot. Now we have seen how to take a snapshot, we
  +can now look at how it is loaded. The `Image` provided to the `onStart` has a method that will indicate if there is no
  +more data available. However, application code should also encode enough information that the end of the stream can be
  +detected from the store messages. The two approaches can be used to sanity check all the data is received.
   
   [source, Java, indent=0, options="nowrap"]
   ----
  
positive.code: 
  <4> Serialise response message.
  
  <5> Calling `offer` on the client session will send the response on the egress channel. Make sure the return value
  for `offer` is checked as it is a non-blocking call and not guaranteed to succeed.
  
  <6> When doing any busy loops within the clustered application use the Cluster's `IdleStrategy::idle(int)` within the
  wait loop to allow the service to wait while allowing other threads to progress. It will take care of handling thread
  
negative.code: snapshot the state of the service.
  
  Aeron Cluster provides an `ExclusivePublication` to write a snapshot as the serialised representation of the application
  logic's state. For real world applications snapshotting can become tricky. The two big concerns you have includes:
  ensuring that you consistently write snapshots, and dealing with fragmentation of the application state across messages.
  For now, our state is so simple neither of those will impact us.
  
  [source%autofit, Java, indent=0, options="nowrap"]
  ----
  