{"record":{"id":"15e9a5b0b517169f","repo":"openai/codex","slug":"duplicate-compaction-request-start-for","errorCode":null,"errorMessage":"duplicate compaction request start for {}","messagePattern":"duplicate compaction request start for (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"codex-rs/rollout-trace/src/reducer/compaction.rs","lineNumber":32,"sourceCode":"use crate::model::ExecutionStatus;\nuse crate::model::ExecutionWindow;\nuse crate::payload::RawPayloadRef;\nuse crate::raw_event::RawEventSeq;\n\nimpl TraceReducer {\n    /// Starts one upstream request attempt for a compaction operation.\n    pub(super) fn start_compaction_request(\n        &mut self,\n        seq: RawEventSeq,\n        wall_time_unix_ms: i64,\n        started: StartedCompactionRequest,\n    ) -> Result<()> {\n        if self\n            .rollout\n            .compaction_requests\n            .contains_key(&started.compaction_request_id)\n        {\n            bail!(\n                \"duplicate compaction request start for {}\",\n                started.compaction_request_id\n            );\n        }\n        self.thread_mut(&started.thread_id)?;\n        let Some(turn) = self.rollout.codex_turns.get(&started.codex_turn_id) else {\n            bail!(\n                \"compaction request {} referenced unknown codex turn {}\",\n                started.compaction_request_id,\n                started.codex_turn_id\n            );\n        };\n        if turn.thread_id != started.thread_id {\n            bail!(\n                \"compaction request {} used thread {}, but codex turn {} belongs to {}\",\n                started.compaction_request_id,\n                started.thread_id,\n                started.codex_turn_id,","sourceCodeStart":14,"sourceCodeEnd":50,"githubUrl":"https://github.com/openai/codex/blob/339751715c64496cb86246bfb3935f40e309dd3d/codex-rs/rollout-trace/src/reducer/compaction.rs#L14-L50","documentation":"Error \"duplicate compaction request start for {}\" thrown in openai/codex.","triggerScenarios":"Thrown at codex-rs/rollout-trace/src/reducer/compaction.rs:32 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"339751715c64496cb86246bfb3935f40e309dd3d","analyzedAt":"2026-08-25T05:35:09.876Z","schemaVersion":2},"datasetVersion":"2026-08-25T06:17:31.827Z"}