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https://issues.apache.org/jira/browse/HADOOP-19958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18103583#comment-18103583
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ASF GitHub Bot commented on HADOOP-19958:
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smengcl opened a new pull request, #8669:
URL: https://github.com/apache/hadoop/pull/8669
### Description of PR\n\nJira:
[HADOOP-19958](https://issues.apache.org/jira/browse/HADOOP-19958)\n\nParent
Jira:
[HADOOP-11890](https://issues.apache.org/jira/browse/HADOOP-11890)\n\nDelegation
token services use . This representation is ambiguous when the host is an IPv6
literal.\n\nThis change:\n\n- adds a shared helper that formats IPv6 addresses
as ;\n- accepts bracketed IPv6 authorities when creating socket addresses;\n-
uses the shared format for delegation token services in both token-service
modes;\n- verifies token service round trips when is or ;\n- rejects
ambiguous unbracketed IPv6 authorities; and\n- preserves existing DNS and IPv4
behavior.\n\n### How was this patch tested?\n\n- \n- Result: 76 tests passed
with no failures, errors, or skips.\n- \n\n### For code changes:\n\n- [x] Does
the title of this PR start with the corresponding JIRA issue id\n (e.g.
'HADOOP-17799. Your PR title ...')?\n- [ ] Object storage: Have the integration
tests been executed and the endpoint\n declared according to the
connector-specific documentation? *Note: Automated CI\n testing doesn't
cover all cases so manual testing with cloud storage is still\n required.*
Not applicable to this change.\n- [x] If adding new dependencies to the code,
are these dependencies licensed in a way that is compatible for inclusion\n
under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? No new
dependencies are added.\n- [x] If applicable, have you updated the , ,
files?\n No license or notice changes are required.\n\n### AI
Tooling\n\nContains content generated by Codex.\n\nIf an AI tool was used:\n\n-
[x] The PR includes the phrase "Contains content generated by <tool>"\n
where <tool> is the name of the AI tool used.\n- [x] My use of AI contributions
follows the ASF legal policy\n
https://www.apache.org/legal/generative-tooling.html
> Support IPv6 delegation token service addresses
> -----------------------------------------------
>
> Key: HADOOP-19958
> URL: https://issues.apache.org/jira/browse/HADOOP-19958
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Siyao Meng
> Priority: Major
>
> Hadoop formats delegation token services as host:port. This format is
> ambiguous for IPv6 literals. Update NetUtils and SecurityUtil to use
> bracketed IPv6 authorities. Verify round trips with
> hadoop.security.token.service.use_ip set to true and false. Reject ambiguous
> unbracketed IPv6 authorities.
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