plugin/transfer: fix goroutine leak on axfr err#7516
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e2e tests fail until #7515 is merged in. Will rebase this once it's in. |
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #7516 +/- ##
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+ Coverage 55.70% 61.77% +6.07%
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Files 224 274 +50
Lines 10016 18233 +8217
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+ Hits 5579 11264 +5685
- Misses 3978 6307 +2329
- Partials 459 662 +203 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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Lets check the test coverage. We should remain at least on the same level. |
Fixes a goroutine leak in zone transfers: when a client disconnects mid-transfer, the server could return without draining the producer channel, leaving the producer goroutine blocked on a small buffer. The writer goroutine only sends an error after channel is closed. At this point "pchan" is fully drained, in the new implementation, so nothing to drain on error anyway. Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>
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Much better. :-) |
yongtang
approved these changes
Sep 5, 2025
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1. Why is this pull request needed and what does it do?
Fixes a goroutine leak in zone transfers: when a client disconnects (or
tr.Outerrors) mid-transfer, the server could return without draining the producer channel, leaving the producer goroutine blocked on a small buffer. This change drains the producer channel on client error, ensuring the producer completes and preventing leaks.Adds a unit test to verify the producer finishes after a simulated write failure. These tests fail against
master. Increases test coverage forplugin/transferfrom 67.5% to 70.7%.2. Which issues (if any) are related?
#6548
3. Which documentation changes (if any) need to be made?
None.
4. Does this introduce a backward incompatible change or deprecation?
No. The server now drains the producer channel to completion instead of leaking a goroutine.