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https://issues.apache.org/jira/browse/HADOOP-13155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Chen updated HADOOP-13155:
-------------------------------
Attachment: HADOOP-13155.02.patch
Thanks Wei-Chiu for the review comments.
# I think the API in KMS documentation are for the HTTP REST APIs, which is on
{{org.apache.hadoop.crypto.key.kms.server.KMS}}, so no need to update.
# Good catch on the xml, added it to core-defaults.xml as well. The only
intention was that KMSUtil cannot access HDFSConfigKeys, so I had to expose it
into a header that common can use. I guess we have to keep it in both places...
Patch 2 also fixes javac/checkstyle above. Please take a look and provide your
feedback. Thanks!
> Implement TokenRenewer in KMS and HttpFS
> ----------------------------------------
>
> 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.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.
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