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Junping Du commented on YARN-667: --------------------------------- Thanks for your comments, [~zjshen]! bq. Shall we consider the version of history data as well? That's good point. We should consider history data, like: ApplicationHistoryData, ApplicationAttemptHistoryData, ContainerHistoryData, etc. could be variable in future and make them proper versioned. In addition, any changes on format (i.e. APPLICATION_PREFIX, etc.) and path of history file (root+appID for now) could be very challenge on rolling upgrade (also seen as incompatible change I think). [~zjshen], do you have sense on how possibility it could happen in 2.X as you are currently work on ATS? > Data persisted in RM should be versioned > ---------------------------------------- > > Key: YARN-667 > URL: https://issues.apache.org/jira/browse/YARN-667 > Project: Hadoop YARN > Issue Type: Sub-task > Affects Versions: 2.0.4-alpha > Reporter: Siddharth Seth > Assignee: Junping Du > > Includes data persisted for RM restart, NodeManager directory structure and > the Aggregated Log Format. -- This message was sent by Atlassian JIRA (v6.2#6252)