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Posted to issues@commons.apache.org by "murray hughes (JIRA)" <ji...@apache.org> on 2016/09/16 10:46:20 UTC

[jira] [Created] (SCXML-252) support using it for sessions.

murray hughes created SCXML-252:
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             Summary: support using it for sessions.
                 Key: SCXML-252
                 URL: https://issues.apache.org/jira/browse/SCXML-252
             Project: Commons SCXML
          Issue Type: New Feature
    Affects Versions: 2.0
            Reporter: murray hughes


It would be nice to support a number of scinstances with the same scxml and replicate them across a cluster.  The key to success with cluster replication is getting the serialized size right down.  Ideally under 1.4k.
To check, I started a microwave-01.scxml, called detachInstance(), serialized the resulting SCInstance, and measured its size.  It was greater than 10KB.   To get this in perspective, the microwave-01.scxml has just a few variables and states.  In theory this could be stored in less than 100 bytes. 
Half of the 10k was the sxcml object.  We should be able to separate that because they are the same/shared between multiple scinstances.   Unsure what is using the remaining 5K, but can it all be removed from the detatched/serialized scinstance?  Just leave the states and contexts?



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