openai/codex · error · anyhow::Error

duplicate compaction request start for {}

Error message

duplicate compaction request start for {}

What it means

Error "duplicate compaction request start for {}" thrown in openai/codex.

Source

Thrown at codex-rs/rollout-trace/src/reducer/compaction.rs:32

use crate::model::ExecutionStatus;
use crate::model::ExecutionWindow;
use crate::payload::RawPayloadRef;
use crate::raw_event::RawEventSeq;

impl TraceReducer {
    /// Starts one upstream request attempt for a compaction operation.
    pub(super) fn start_compaction_request(
        &mut self,
        seq: RawEventSeq,
        wall_time_unix_ms: i64,
        started: StartedCompactionRequest,
    ) -> Result<()> {
        if self
            .rollout
            .compaction_requests
            .contains_key(&started.compaction_request_id)
        {
            bail!(
                "duplicate compaction request start for {}",
                started.compaction_request_id
            );
        }
        self.thread_mut(&started.thread_id)?;
        let Some(turn) = self.rollout.codex_turns.get(&started.codex_turn_id) else {
            bail!(
                "compaction request {} referenced unknown codex turn {}",
                started.compaction_request_id,
                started.codex_turn_id
            );
        };
        if turn.thread_id != started.thread_id {
            bail!(
                "compaction request {} used thread {}, but codex turn {} belongs to {}",
                started.compaction_request_id,
                started.thread_id,
                started.codex_turn_id,

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/rollout-trace/src/reducer/compaction.rs:32 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/15e9a5b0b517169f. Report an issue: GitHub.