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Andrew Wang commented on HADOOP-13155: -------------------------------------- LGTM +1, will commit shortly. Thanks for working on this Xiao. Could you also add a release note about the new config requirement for renewal? Also, should we do anything about this for Hadoop 3? For instance, deprecate and remove the "dfs._" key in favor of the "hadoop._" key? > Implement TokenRenewer to renew and cancel delegation tokens in KMS > ------------------------------------------------------------------- > > Key: HADOOP-13155 > URL: https://issues.apache.org/jira/browse/HADOOP-13155 > Project: Hadoop Common > Issue Type: Bug > Reporter: Xiao Chen > Assignee: Xiao Chen > Attachments: HADOOP-13155.01.patch, HADOOP-13155.02.patch, > HADOOP-13155.03.patch, HADOOP-13155.04.patch, HADOOP-13155.05.patch, > HADOOP-13155.06.patch, HADOOP-13155.07.patch, HADOOP-13155.pre.patch > > > Service DelegationToken (DT) renewal is done in Yarn by > {{org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer}}, > where it calls {{Token#renew}} and uses ServiceLoader to find the renewer > class > ([code|https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/Token.java#L382]), > and invokes the renew method from it. > We seem to miss the token renewer class in KMS / HttpFSFileSystem, and hence > Yarn defaults to {{TrivialRenewer}} for DT of such kinds, resulting in the > token not being renewed. > As a side note, {{HttpFSFileSystem}} does have a {{renewDelegationToken}} > API, but I don't see it invoked in hadoop code base. KMS does not have any > renew hook. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org