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Vinod Kumar Vavilapalli commented on YARN-668: ---------------------------------------------- I think [~sseth]'s solution in the description is a much simpler way to address this bq. The current serialization is Writable. A simple way to achieve this would be to have a Proto object as the payload for TokenIdentifiers, instead of individual fields. > TokenIdentifier serialization should consider Unknown fields > ------------------------------------------------------------ > > Key: YARN-668 > URL: https://issues.apache.org/jira/browse/YARN-668 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Siddharth Seth > Assignee: Vinod Kumar Vavilapalli > Priority: Blocker > > This would allow changing of the TokenIdentifier between versions. The > current serialization is Writable. A simple way to achieve this would be to > have a Proto object as the payload for TokenIdentifiers, instead of > individual fields. > TokenIdentifier continues to implement Writable to work with the RPC layer - > but the payload itself is serialized using PB. -- This message was sent by Atlassian JIRA (v6.3.4#6332)