CLI /quit takes ~20s after shutdown UI due nested in-process app-server shutdown timeouts and OTEL metrics flush
Open 💬 1 comment Opened Jun 28, 2026 by KaminariOS
What version of Codex CLI is running?
codex-cli 0.142.0
What subscription do you have?
Pro lite
Which model were you using?
GPT-5.5
What platform is your computer?
Linux 6.18.33 x86_64 unknown
What terminal emulator and version are you using (if applicable)?
wezterm
Codex doctor report
{
"schemaVersion": 1,
"generatedAt": "1782664344s since unix epoch",
"overallStatus": "fail",
"codexVersion": "0.142.0",
"checks": {
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"id": "app_server.status",
"category": "app-server",
"status": "ok",
"summary": "background server is not running",
"details": {
"control socket": "/home/kosumi/.codex/app-server-control/app-server-control.sock",
"daemon state dir": "/home/kosumi/.codex/app-server-daemon",
"mode": "persistent",
"pid file": "/home/kosumi/.codex/app-server-daemon/app-server.pid (missing)",
"settings": "/home/kosumi/.codex/app-server-daemon/settings.json (file)",
"status": "not running",
"update-loop pid file": "/home/kosumi/.codex/app-server-daemon/app-server-updater.pid (file)"
},
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"durationMs": 0
},
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"status": "ok",
"summary": "auth is configured",
"details": {
"auth file": "/home/kosumi/.codex/auth.json",
"auth storage mode": "File",
"stored API key": "false",
"stored ChatGPT tokens": "true",
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},
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"id": "config.load",
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"cwd": "/home/kosumi",
"enabled feature flags": "shell_tool, unified_exec, shell_snapshot, terminal_resize_reflow, sqlite, hooks, enable_request_compression, multi_agent, tool_suggest, in_app_browser, browser_use, browser_use_external, computer_use, plugin_sharing, image_generation, resize_all_images, skill_mcp_dependency_install, mentions_v2, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, personality, fast_mode, tui_app_server, auto_compaction, remote_compaction_v2, workspace_dependencies",
"feature flag overrides": "apps=false, plugins=false",
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"mcp servers": "1",
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"sqlite home": "/home/kosumi/.codex"
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"git.environment": {
"id": "git.environment",
"category": "git",
"status": "ok",
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"details": {
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"git build options": "git version 2.54.0; cpu: x86_64; no commit associated with this build; sizeof-long: 8; sizeof-size_t: 8; shell-path: /nix/store/gik3rh1vz2jlgnifb9dh6vc6sxwwz9jj-bash-5.3p9/bin/bash; rust: enabled; gettext: enabled; libcurl: 8.20.0; OpenSSL: OpenSSL 3.6.2 7 Apr 2026; zlib-ng: 2.3.3; SHA-1: SHA1_DC; SHA-256: SHA256_BLK; default-ref-format: files; default-hash: sha1",
"git exec path": "/nix/store/bqz9b72r66apn6lrn5qxpklscld1mdik-git-with-svn-2.54.0/libexec/git-core",
"git version": "git version 2.54.0",
"repo detected": "true",
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"durationMs": 15
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"installation": {
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"status": "ok",
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"details": {
"PATH codex #1": "/home/kosumi/.nix-profile/bin/codex",
"current executable": "/nix/store/s5rfjwqp1miwh2xkaip1l7iiwshhh6rr-codex-0.142.0/bin/codex-raw",
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"mcp.config": {
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"stdio servers": "1"
},
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"durationMs": 0
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"network.env": {
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"status": "ok",
"summary": "network-related environment looks readable",
"details": {
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"remediation": null,
"durationMs": 0
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"network.provider_reachability": {
"id": "network.provider_reachability",
"category": "reachability",
"status": "fail",
"summary": "one or more required provider endpoints are unreachable over HTTP",
"details": {
"ChatGPT base URL": "https://chatgpt.com/backend-api/ request timed out (required)",
"reachability mode": "ChatGPT auth"
},
"remediation": "Check proxy, VPN, firewall, DNS, and custom CA configuration.",
"durationMs": 3015
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"network.websocket_reachability": {
"id": "network.websocket_reachability",
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"status": "ok",
"summary": "Responses WebSocket handshake succeeded",
"details": {
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"auth mode": "chatgpt",
"connect timeout": "15000 ms",
"endpoint": "wss://chatgpt.com/backend-api/<redacted>",
"handshake result": "HTTP 101 Switching Protocols",
"model provider": "openai",
"models etag present": "true",
"provider name": "OpenAI",
"proxy env vars": "none",
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"durationMs": 1446
},
"runtime.provenance": {
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"status": "ok",
"summary": "running local build on linux-x86_64",
"details": {
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"current executable": "/nix/store/s5rfjwqp1miwh2xkaip1l7iiwshhh6rr-codex-0.142.0/bin/codex-raw",
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"version": "0.142.0"
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"runtime.search": {
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"summary": "search is OK (system)",
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"search command readiness": "ripgrep 15.1.0",
"search provider": "system"
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"durationMs": 1
},
"sandbox.helpers": {
"id": "sandbox.helpers",
"category": "sandbox",
"status": "ok",
"summary": "sandbox configuration is readable",
"details": {
"approval policy": "OnRequest",
"codex-linux-sandbox helper": "/home/kosumi/.codex/tmp/arg0/codex-arg0o5m7c1/codex-linux-sandbox",
"execve wrapper helper": "/home/kosumi/.codex/tmp/arg0/codex-arg0o5m7c1/codex-execve-wrapper",
"filesystem sandbox": "restricted",
"network sandbox": "restricted"
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"durationMs": 0
},
"state.paths": {
"id": "state.paths",
"category": "state",
"status": "ok",
"summary": "state paths and databases are inspectable",
"details": {
"CODEX_HOME": "/home/kosumi/.codex (dir)",
"active rollout files": "4764 files, 1259616463 total bytes, 264403 average bytes",
"archived rollout files": "0 files, 0 total bytes, 0 average bytes",
"goals DB": "/home/kosumi/.codex/goals_1.sqlite (file)",
"goals DB integrity": "ok",
"log DB": "/home/kosumi/.codex/logs_2.sqlite (file)",
"log DB integrity": "ok",
"log dir": "/tmp/opencode/codex-logs (dir)",
"memories DB": "/home/kosumi/.codex/memories_1.sqlite (file)",
"memories DB integrity": "ok",
"sqlite home": "/home/kosumi/.codex (dir)",
"state DB": "/home/kosumi/.codex/state_5.sqlite (file)",
"state DB integrity": "ok"
},
"remediation": null,
"durationMs": 386
},
"state.rollout_db_parity": {
"id": "state.rollout_db_parity",
"category": "threads",
"status": "ok",
"summary": "rollout files and state DB thread inventory agree",
"details": {
"default model provider": "openai",
"rollout DB active files": "4764",
"rollout DB active rows": "4764",
"rollout DB archive mismatches": "0",
"rollout DB archived files": "0",
"rollout DB archived rows": "0",
"rollout DB duplicate DB paths": "0",
"rollout DB duplicate rollout thread ids": "0",
"rollout DB malformed file names": "0",
"rollout DB missing active rows": "0",
"rollout DB missing archived rows": "0",
"rollout DB model providers": "openai=4764",
"rollout DB rows": "4764",
"rollout DB scan cap reached": "false",
"rollout DB scan errors": "0",
"rollout DB sources": "exec=3311, cli=1276, vscode=157, mcp=11, subagent:review=5, subagent:thread_spawn=4",
"rollout DB stale rows": "0"
},
"remediation": null,
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},
"system.environment": {
"id": "system.environment",
"category": "system",
"status": "ok",
"summary": "OS language en-US",
"details": {
"EDITOR": "set",
"LANG": "en_US.UTF-8",
"PAGER": "set",
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"os": "NixOS 26.11.0 [64-bit]",
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},
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"durationMs": 0
},
"terminal.env": {
"id": "terminal.env",
"category": "terminal",
"status": "fail",
"summary": "TERMINFO unreadable - terminal capabilities are unknown",
"details": {
"COLORTERM": "truecolor",
"DISPLAY": "present",
"TERMINFO_DIRS entry": [
"/home/kosumi/.nix-profile/share/terminfo (dir)",
"/nix/profile/share/terminfo (missing)",
"/home/kosumi/.local/state/nix/profile/share/terminfo (missing)",
"/etc/profiles/per-user/kosumi/share/terminfo (missing)",
"/nix/var/nix/profiles/default/share/terminfo (missing)",
"/run/current-system/sw/share/terminfo (dir)"
],
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"terminal size": "157x42",
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},
"issues": [
{
"severity": "fail",
"cause": "TERMINFO unreadable - terminal capabilities are unknown",
"measured": null,
"expected": "readable terminfo file or directory",
"remedy": "check that $TERMINFO points to a readable directory",
"fields": [
"TERMINFO",
"TERMINFO_DIRS entry"
]
}
],
"remediation": null,
"durationMs": 0
},
"terminal.title": {
"id": "terminal.title",
"category": "title",
"status": "ok",
"summary": "terminal title default",
"details": {
"terminal title activity": "true",
"terminal title items": "activity, project-name",
"terminal title project source": "git repo root",
"terminal title project value": "kosumi",
"terminal title source": "default"
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"durationMs": 0
},
"updates.status": {
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"category": "updates",
"status": "ok",
"summary": "update configuration is locally consistent",
"details": {
"cached latest version": "0.142.3",
"check for update on startup": "false",
"dismissed version": "0.135.0",
"last checked at": "2026-06-27T16:07:48.836062088Z",
"latest version": "0.142.3",
"latest version status": "newer version is available",
"update action": "manual or unknown",
"version cache": "/home/kosumi/.codex/version.json"
},
"remediation": null,
"durationMs": 1727
}
}
}What issue are you seeing?
In the Codex CLI TUI, /quit is accepted quickly and the shutdown UI paints almost immediately, but the process stays alive for about 20 seconds before the terminal returns.
This is not just terminal/pane detection. A real WezTerm pane harness that records the Codex PID shows the Codex process itself exits after ~20s.
Local mitigation:
[otel]
metrics_exporter = "none"
reduces the delay from ~20s to 10s, so roughly half of the delay is OTEL/Statsig metrics shutdown. The remaining 10s appears to be nested in-process app-server shutdown fallback waits.What steps can reproduce the bug?
- Run Codex CLI TUI in a real terminal.
- Wait until the initial model/session UI has loaded.
- Type /quit and press Enter.
- Observe that the shutdown UI appears quickly, but the process exits much later.
Measured locally with Codex 0.142.0:
default release config
shutdown_paint_ms=377 process_exit_ms=20296 pane_exit_ms=20296
shutdown_paint_ms=846 process_exit_ms=20695 pane_exit_ms=20695
with [otel] metrics_exporter = "none"
shutdown_paint_ms=377 process_exit_ms=10260 pane_exit_ms=10260
shutdown_paint_ms=395 pane_exit_ms=10181
What is the expected behavior?
After /quit is accepted and the shutdown UI is painted, the CLI should exit promptly.
If graceful app-server/thread/telemetry cleanup cannot complete quickly, it should be timeout-isolated or detached so a user-initiated quit does not wait ~10-20 seconds.
Additional information
_No response_
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