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https://issues.apache.org/jira/browse/TINKERPOP-1346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stephen mallette updated TINKERPOP-1346:
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Summary: Gryo 4.0 (was: Create custom ReferenceXXX GryoSerializers)
This ticket was about changing the format of Reference* classes, but it really
is about stamping out a new version of Gryo which I don't think we'll do for
3.4.x (i think we need to let the serializers settle after the big changes
there for 3.3.0). I think that if we look at the Reference* classes, we might
look at the Detached* classes as well, though as we go deeper into 3.x releases
the reliance on Detached* becomes less and less I guess. Anyway, I think this
ticket can be the catch-all for ideas related to Gryo 4.0.
> Gryo 4.0
> --------
>
> Key: TINKERPOP-1346
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1346
> Project: TinkerPop
> Issue Type: Improvement
> Components: io, structure
> Affects Versions: 3.2.0-incubating
> Reporter: Marko A. Rodriguez
> Priority: Major
> Labels: breaking
>
> Right now, to send a {{ReferenceEdge}} message, we serialize the form as:
> {code}
> KryoClassInteger[ReferenceEdge] + KryoClassObject[Edge ID] +
> KryoClassInteger[ReferenceVertex] + KryoClassObject[Vertex ID] +
> KryoClassInteger[ReferenceVertex] + KryoClassObject[Vertex ID]
> {code}
> Assuming {{Long}} Element ids, the math says:
> {code}
> 48 bytes = 4 bytes + (4 bytes + 8 bytes [long]) + 4 bytes + (4 bytes + 8
> bytes [long]) + 4 bytes + (4 bytes + 8 bytes [long])
> {code}
> We could get this smaller by not relying on Kryo's {{FieldSerializer}}.
> {code}
> KryoClassInteger[ReferenceEdge] + KryoClassInteger[VertexIDClass] +
> KryoClassObject[Edge ID] + KryoObject[Vertex ID] + KryoObject[Vertex ID]
> {code}
> The math says:
> {code}
> 36 bytes = 4 bytes + 4 bytes + (4 bytes + 8 bytes [long]) + 8 bytes [long] +
> 8 bytes [long]
> {code}
> Similar techniques would apply to {{ReferenceVertexProperty}} and
> {{ReferenceProperty}}.
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