{"record":{"id":"c6435390963baf22","repo":"lionsoul2014/ip2region","slug":"ip2region-no-region-found-for-ip-address","errorCode":null,"errorMessage":"ip2region: no region found for IP address","messagePattern":"ip2region: no region found for IP address","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"binding/nginx/src/ngx_http_ip2region_module.c","lineNumber":473,"sourceCode":"                        } else {\n                            ngx_log_error(NGX_LOG_WARN, r->connection->log, 0,\n                                          \"ip2region search failed for IPv6 address\");\n                        }\n                    }\n                } else {\n                    ngx_log_error(NGX_LOG_WARN, r->connection->log, 0,\n                                  \"no IPv6 searcher available for IPv6 address\");\n                }\n            }\n            break;\n\n#endif\n\n    }\n    // 如果搜索失败，释放 region buffer\n    xdb_region_buffer_free(&region);\n\n    ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,\n                  \"ip2region: no region found for IP address\");\n    v->not_found = 1;\n    return NGX_OK;\n}\n\n\nstatic void\nngx_http_ip2region_cleanup(void *data)\n{\n    ngx_http_ip2region_conf_t *ip2region_conf = data;\n\n    // 清理 IPv4 searcher\n    if(ip2region_conf->v4_searcher != NULL) {\n        xdb_close(&ip2region_conf->v4_searcher->searcher);\n\n        // check and free the vector index\n        if (ip2region_conf->v4_searcher->v_index != NULL) {\n            xdb_free_vector_index((void *)ip2region_conf->v4_searcher->v_index);","sourceCodeStart":455,"sourceCodeEnd":491,"githubUrl":"https://github.com/lionsoul2014/ip2region/blob/c1a1fc7d5941760db3f8431dc05c48cf7f0e30a1/binding/nginx/src/ngx_http_ip2region_module.c#L455-L491","documentation":"nginx end-of-variable info log: after the search path completes (whether or not a region was found) the module frees the region buffer and emits this informational message — it fires for every evaluated request when no region data was produced, e.g. empty search result or skipped lookup, not only on hard errors.","triggerScenarios":"Thrown at binding/nginx/src/ngx_http_ip2region_module.c:473 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Raise the log level above info to silence per-request noise","Treat an empty variable as 'unknown region' in your templates","Investigate repeated no-region results only if valid public IPs are affected"],"exampleFix":null,"handlingStrategy":"fallback","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"c1a1fc7d5941760db3f8431dc05c48cf7f0e30a1","analyzedAt":"2026-09-02T16:58:39.988Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-09T21:17:11.164Z"}