Fix: retry httpx.RemoteProtocolError in the SSE chat client - #1752
Fix: retry httpx.RemoteProtocolError in the SSE chat client#1752Tomkess wants to merge 2 commits into
Conversation
Mid-stream disconnects ("peer closed connection without sending
complete message body") were not retried at all -- _is_retryable_exc
only handled TransientChatError and HTTPStatusError. Confirmed live:
this contaminated ~1-4% of visualization runs with a hard fail on pure
network flake, indistinguishable from a real agent/content failure in
the result.
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📝 WalkthroughWalkthroughThe SSE client now retries ChangesSSE retry handling
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to The change adds retries for connection failures, but disconnects occurring during SSE response parsing can still bypass retry handling and fail the conversation. Retrying conversation creation may also create duplicate or orphaned conversations when the server succeeds but the response is lost, so the PR is not merge-ready until these behaviors are addressed or explicitly accepted. Suggested reviewers: Poem
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✅ Passed checks (4 passed)
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Inline comments:
In `@packages/gooddata-eval/src/gooddata_eval/core/chat/sse_client.py`:
- Around line 92-97: Update parse_sse_lines to catch httpx.RemoteProtocolError
from the SSE line iterator before the generic exception handler and raise
TransientChatError while preserving the partial result; add a regression test
that triggers the error during iterator consumption and verifies the transient
error and partial-result behavior.
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Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
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packages/gooddata-eval/src/gooddata_eval/core/chat/sse_client.pypackages/gooddata-eval/tests/test_sse_client.py
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #1752 +/- ##
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Coverage 80.16% 80.16%
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Files 272 272
Lines 19120 19125 +5
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+ Hits 15327 15332 +5
Misses 3793 3793 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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…t time parse_sse_lines wrapped every next(it) failure in the non-retryable ChatError, including httpx.RemoteProtocolError -- so _is_retryable_exc's RemoteProtocolError branch only ever fired for a disconnect at connect time, never for the mid-stream case CodeRabbit flagged and the one actually seen in production. Raise TransientChatError instead when the wrapped exception is a RemoteProtocolError.
1 participant
Summary
_is_retryable_exconly handledTransientChatErrorandhttpx.HTTPStatusError(status-code based) — a mid-stream disconnect (httpx.RemoteProtocolError, e.g. "peer closed connection without sending complete message body") fell through toreturn Falseand hard-failed with zero retry attempts.visualizationeval runs: this pure network flake contaminated ~1-4% of runs with a hard fail, indistinguishable in the result from a real agent/content failure.Test plan
test_create_conversation_retries_remote_protocol_error— raisesRemoteProtocolErrortwice then succeeds, confirms the standard backoff schedule applies.pytest packages/gooddata-eval/tests/test_sse_client.py— 59/59 pass.openainot being installed locally (llm-judge extra), not by this change.Summary by CodeRabbit
Bug Fixes
Tests