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https://issues.apache.org/jira/browse/IGNITE-5496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amelchev Nikita reassigned IGNITE-5496:
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Assignee: Amelchev Nikita
> Externalizable classes get registered twice
> -------------------------------------------
>
> Key: IGNITE-5496
> URL: https://issues.apache.org/jira/browse/IGNITE-5496
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 1.7
> Reporter: Alexey Goncharuk
> Assignee: Amelchev Nikita
> Labels: important
> Fix For: 2.2
>
>
> I observed a strange behavior on ignite-1.7. If I have an externalizable
> class inside of a serializable class and BinaryMarshaller is used, the
> externalizable class gets registered twice with different typeIds.
> Looks like this happens because in BinaryWriterExImpl#marshal0 we first call
> ctx.descriptorForClass(cls, false) which will calculate and register type
> with one typeId. Then we figure out that the class is externalizable and
> switch to optimized marshaller (U.marshal(ctx.optimizedMarsh(), obj)) which
> will register another type ID.
> Need to check if this is still reproducible in 2.1-2.2 as it may be a
> performance issue.
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