RockteMQ-AI commented on issue #10834:
URL: https://github.com/apache/rocketmq/issues/10834#issuecomment-5225049966
**Issue Evaluation**
Category: `type/bug` | Status: **Confirmed**
The reported issue has been verified against the current codebase (`develop`
branch).
**Root Cause:** `RemotingHelper.parseHostFromAddress` (line 268) uses
`address.split(":")` which incorrectly splits bracketed IPv6 addresses like
`[2001:db8::1]:10911` into multiple parts. Returns `[2001` instead of
`2001:db8::1`.
**Impact:** HA connection notifications use truncated host for IPv6 brokers,
breaking high-availability failover in IPv6 environments.
**Severity:** medium
**Affected code:**
`remoting/src/main/java/org/apache/rocketmq/remoting/common/RemotingHelper.java`
An automated fix proposal will be generated. Reply `/approve` to proceed
with PR generation.
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