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Suresh Srinivas commented on HDFS-4362: --------------------------------------- Incompatible means a contract is being broken. In this case it is wire protocol. Incompatible change && does not affect any one does not make it compatible change. That is the difference. Hence It is okay to say, this is an incompatible change, but will not affect any body in production. > GetDelegationTokenResponseProto does not handle null token > ---------------------------------------------------------- > > Key: HDFS-4362 > URL: https://issues.apache.org/jira/browse/HDFS-4362 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.0.2-alpha > Reporter: Suresh Srinivas > Assignee: Suresh Srinivas > Priority: Critical > Fix For: 2.0.3-alpha > > Attachments: HDFS-4362.patch > > > While working on HADOOP-9173, I notice that the > GetDelegationTokenResponseProto declares the token field as required. However > return of null token is to be expected both as defined in > FileSystem#getDelegationToken() and also based on HDFS implementation. This > jira intends to make the field as optional. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira