{"record":{"id":"c0f915ff0a9d8357","repo":"stamparm/maltrail","slug":"trail-update-failed-reason","errorCode":null,"errorMessage":"trail update failed: {reason}","messagePattern":"trail update failed: (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"sensor/src/main.rs","lineNumber":1011,"sourceCode":"                    \"[i] trail updates disabled ('DISABLE_TRAIL_UPDATES'); using '{}' as-is\",\n                    cfg.trails_file.display()\n                );\n                warn_if_trails_are_stale(cfg);\n            }\n        }\n        trailupdate::Outcome::Unavailable(reason) => {\n            ceprintln!(\"[!] cannot update trails: {reason}\");\n            ceprintln!(\n                \"[?] the sensor needs Maltrail's own updater (core/update.py) to refresh '{}'; \\\n                 without it, IOCs added since that file was written are NOT detected\",\n                cfg.trails_file.display()\n            );\n            output::log_error(&format!(\"trail update unavailable: {reason}\"), true);\n            warn_if_trails_are_stale(cfg);\n        }\n        trailupdate::Outcome::Failed(reason) => {\n            ceprintln!(\"[!] trail update failed ({reason}); continuing with the existing trails\");\n            output::log_error(&format!(\"trail update failed: {reason}\"), true);\n            warn_if_trails_are_stale(cfg);\n        }\n    }\n}\n\n/// Loudly flag a trails file older than one update period — the failure mode that cost a live\n/// detection: an old file looks perfectly healthy while the sensor quietly misses new IOCs.\nfn warn_if_trails_are_stale(cfg: &Config) {\n    let Some(age) = trailupdate::trails_age_secs(&cfg.trails_file) else {\n        ceprintln!(\"[!] no trails file at '{}' - the sensor will detect NOTHING\", cfg.trails_file.display());\n        return;\n    };\n    if age > cfg.update_period.max(1) {\n        let days = age as f64 / 86400.0;\n        ceprintln!(\n            \"[!] '{}' is {:.1} day(s) old (older than UPDATE_PERIOD): every trail added since then \\\n             is NOT being detected\",\n            cfg.trails_file.display(),","sourceCodeStart":993,"sourceCodeEnd":1029,"githubUrl":"https://github.com/stamparm/maltrail/blob/77cfb06d7606506d101bbcec0786c77166c4255e/sensor/src/main.rs#L993-L1029","documentation":"The trail update subsystem returned Outcome::Failed(reason): the updater was available and attempted the refresh but the update itself failed. The sensor logs \"trail update failed: {reason}\", keeps operating with the existing trails, and calls warn_if_trails_are_stale to flag staleness if the file ages past one update period.","triggerScenarios":"refresh_trails receives trailupdate::Outcome::Failed(reason) after invoking the updater: the update process exits non-zero, download of the trails archive fails, or the downloaded data cannot be parsed/written to cfg.trails_file.","commonSituations":"Temporary upstream outages or CDN errors for the trails sources; rate limiting by IOC feed providers; TLS/certificate problems on the host; disk full when writing the new trails file; corrupt partial downloads.","solutions":["Read the ({reason}) detail to identify whether it is network, parse, or write related.","Check outbound network access and retry after transient upstream failures.","Free disk space and verify write permissions on cfg.trails_file.","If persistent, update the trails sources list or refresh manually and restart the sensor."],"exampleFix":null,"handlingStrategy":"retry","validationCode":"// preflight the updater\nlet status = std::process::Command::new(\"python3\").arg(\"core/update.py\").arg(\"--check\").status();\nassert!(status.map(|s| s.success()).unwrap_or(false), \"updater not runnable\");","typeGuard":null,"tryCatchPattern":"match refresh_trails().await {\n    Outcome::Failed(reason) => { log_update_failed(&reason); retry_with_backoff(); keep_existing_trails(); }\n    _ => {}\n}","preventionTips":["Alert on repeated trail update failures across consecutive cycles","Watch trails file age and warn past one update period","Verify upstream trails sources availability and host TLS/DNS health regularly"],"tags":["rust","trails","update","network"],"backgroundTag":"http-request-failed","analyzedSha":"77cfb06d7606506d101bbcec0786c77166c4255e","analyzedAt":"2026-09-13T03:50:16.010Z","contentChangedAt":"2026-09-13T03:50:16.010Z","schemaVersion":2},"datasetVersion":"2026-09-16T09:17:16.951Z"}