smengcl opened a new pull request, #8852:
URL: https://github.com/apache/hadoop/pull/8852
Generated-by: Claude Code (Opus 5.5)
### Description of PR
`DatanodeManager#getDnDescriptorsFromIpAddr` took the host from a slow peer
key with `split(":")[0]`. For an IPv6 info address such as `2001:db8::1:9864`
or `[2001:db8::1]:9864` that yields `2001` or `[2001`, so the DataNode was
never found and slow node exclusion did nothing on IPv6 clusters.
The host is now everything before the last `:`, with surrounding brackets
removed. IPv4 and hostname keys parse the same as before.
### How was this patch tested?
Added `TestDatanodeManager#testSlowPeersResolvedForIpv4AndIpv6`, which
registers IPv4 and IPv6 DataNodes, reports them as slow peers using plain IPv4,
plain IPv6 and bracketed IPv6 info addresses, and checks that
`getAllSlowDataNodes` returns all three. It fails without the fix.
`TestReplicationPolicyExcludeSlowNodes` still passes.
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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