{"record":{"id":"f4e074f7583c368f","repo":"apache/seatunnel","slug":"failed-to-execute-http-request-to-firebase-endpoin","errorCode":null,"errorMessage":"Failed to execute HTTP request to Firebase endpoint","messagePattern":"Failed to execute HTTP request to Firebase endpoint","errorType":"exception","errorClass":"SeaTunnelException","httpStatus":null,"severity":"error","filePath":"seatunnel-connectors-v2/connector-firebase/src/main/java/org/apache/seatunnel/connectors/seatunnel/firebase/client/FirebaseHttpClient.java","lineNumber":219,"sourceCode":"                                new BufferedReader(\n                                        new InputStreamReader(\n                                                inputStream, StandardCharsets.UTF_8))) {\n                    StringBuilder responseBuilder = new StringBuilder();\n                    String line;\n                    while ((line = reader.readLine()) != null) {\n                        responseBuilder.append(line);\n                    }\n                    return responseBuilder.toString();\n                }\n            } else {\n                String rawErrorBody = readErrorStream(connection);\n                throw new SeaTunnelException(\n                        String.format(\n                                \"Firebase HTTP request failed with status code %d. Response body: %s\",\n                                responseCode, rawErrorBody.isEmpty() ? \"N/A\" : rawErrorBody));\n            }\n        } catch (IOException e) {\n            throw new SeaTunnelException(\"Failed to execute HTTP request to Firebase endpoint\", e);\n        } finally {\n            if (connection != null) {\n                connection.disconnect();\n            }\n        }\n    }\n\n    private String encodeUriComponent(String value) {\n        try {\n            return URLEncoder.encode(value, StandardCharsets.UTF_8.name())\n                    .replaceAll(\"\\\\+\", \"%20\"); // Handle space encoding for URIs\n        } catch (UnsupportedEncodingException e) {\n            throw new RuntimeException(e);\n        }\n    }\n\n    private String readErrorStream(HttpURLConnection connection) {\n        InputStream errorStream = connection.getErrorStream();","sourceCodeStart":201,"sourceCodeEnd":237,"githubUrl":"https://github.com/apache/seatunnel/blob/cf67b549a7a6c35fa0beb12d83c62892427ea919/seatunnel-connectors-v2/connector-firebase/src/main/java/org/apache/seatunnel/connectors/seatunnel/firebase/client/FirebaseHttpClient.java#L201-L237","documentation":"executeGet catches IOException from the underlying HttpURLConnection (connect/read failures) and wraps it in this SeaTunnelException. It indicates the HTTP request to Firebase never completed at the transport level — DNS failure, connection refused/reset, timeout, or SSL error. The original IOException is preserved as the cause.","triggerScenarios":"Network outage or DNS resolution failure for the Firebase host; connect timeout exceeded (timeout_ms too small); SSL handshake failure; connection reset by proxy/firewall.","commonSituations":"Running in an isolated network without internet or without proxy configuration; timeout_ms set too low for slow networks; TLS interception appliances breaking the handshake; transient network blips during long jobs.","solutions":["Inspect the wrapped IOException cause to identify DNS vs connect vs SSL vs timeout failure.","Increase timeout_ms if reads are timing out on slow networks.","Configure JVM proxy settings (https.proxyHost/https.proxyPort) if the environment requires a proxy.","Add retry with backoff for transient network errors."],"exampleFix":"null","handlingStrategy":"retry","validationCode":"InetAddress addr = InetAddress.getByName(\"mydb.firebaseio.com\");\nif (addr == null) throw new IllegalStateException(\"DNS cannot resolve Firebase host\");","typeGuard":null,"tryCatchPattern":"catch (SeaTunnelException e) { if (e.getCause() instanceof IOException) { retryWithBackoff(); } else { throw e; } }","preventionTips":["Verify network/DNS reachability from the job environment","Set timeout_ms generously for slow networks","Configure JVM proxy settings if behind a proxy","Add retry with exponential backoff for transient IO failures"],"tags":["firebase","network","http","io"],"backgroundTag":"network-request-failed","analyzedSha":"cf67b549a7a6c35fa0beb12d83c62892427ea919","analyzedAt":"2026-09-10T21:44:55.265Z","contentChangedAt":"2026-09-10T21:44:55.265Z","schemaVersion":2},"datasetVersion":"2026-09-14T11:17:12.474Z"}