in_elasticsearch: respond to malformed bulk payloads - #12445
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Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>
Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>
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Included review availability: Your plan provides up to 8 included reviews per hour; 6 remain after this review. 📝 WalkthroughWalkthroughThe Elasticsearch bulk input now distinguishes invalid payloads from ingestion failures and maps them to HTTP responses. Parser handling and integration tests cover malformed data, trailing bytes, busy ingress, and recovery. A runtime test checks the HTTP response when ingestion fails. ChangesElasticsearch bulk error handling
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Merge Risk: ⚪ Minimal · up to No actionable merge-blocking issue is established from the supplied evidence; proceed with normal validation. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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| if (ret != 0 && ret != FLB_INPUT_INGRESS_BUSY) { | ||
| send_response_ng(response, 400, NULL, "error: invalid bulk payload\n"); |
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When a valid bulk item reaches in_elasticsearch_ingest_logs(), either the worker-queue allocation path or flb_input_log_append() can return -1; process_ndpack() propagates that value through parse_payload_ndjson(), so this blanket branch commits HTTP 400 for transient allocation, processor, or storage failures. Clients commonly treat 4xx responses as permanent and may discard valid records, whereas these internal failures should be distinguished from malformed JSON and receive a retryable 5xx response.
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Actionable comments posted: 1
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@plugins/in_elasticsearch/in_elasticsearch_bulk_prot.c`:
- Around line 634-635: Update the response handling around process_ndpack and
send_response_ng so parser failures retain HTTP 400, while ingestion or
downstream input/processor failures return an appropriate 5xx status; continue
treating FLB_INPUT_INGRESS_BUSY separately.
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plugins/in_elasticsearch/in_elasticsearch_bulk_prot.ctests/integration/scenarios/elasticsearch_invalid_bulk/tests/test_elasticsearch_invalid_bulk.py
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Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>
Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>
…checks Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>
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- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@plugins/in_elasticsearch/in_elasticsearch_bulk_prot.c`:
- Line 488: Update parse_payload_ndjson to inspect the bytes after
pack_state.last_byte before resetting pack_state or processing the packed
records; reject the request if any trailing bytes are non-whitespace, while
allowing whitespace-only trailing data.
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plugins/in_elasticsearch/in_elasticsearch_bulk_prot.ctests/integration/scenarios/elasticsearch_invalid_bulk/tests/test_elasticsearch_invalid_bulk.pytests/runtime/in_elasticsearch.c
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Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>
Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>
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Malformed Elasticsearch Bulk API payloads now receive a prompt HTTP 400 instead of waiting for the connection I/O timeout. Internal ingestion or encoding failures receive HTTP 500 so clients can retry valid records; worker ingress queue saturation retains HTTP 503. Ingestion failures are preserved before checking for an incomplete bulk item. The entire request is checked for unconsumed non-whitespace data before ingestion, so a complete bulk prefix followed by truncated data is rejected with HTTP 400 without ingesting the prefix. Whitespace-only suffixes remain accepted. Valid bulk responses and item-level operation errors retain their existing behavior.
The regression scenario uses the suite's shared FluentBitManager, including Valgrind and macOS Leaks launch and strict result validation. Tests cover malformed and nested payload recovery, worker queue saturation, and an append failure while the HTTP listener remains active.
Validation on this branch's Linux build:
ctest --test-dir build -R '^flb-rt-in_elasticsearch$' --output-on-failure: passed.Exact focused integration commands:
Trailing-data fix validation commands:
Append-failure memory check:
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