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fix(core): increase default headers timeout to 5 minutes#20890

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gundermanc merged 1 commit intomainfrom
gundermanc/fix-timeout
Mar 2, 2026
Merged

fix(core): increase default headers timeout to 5 minutes#20890
gundermanc merged 1 commit intomainfrom
gundermanc/fix-timeout

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This PR fixes a timeout issue introduced in #20441

Issue:
The previous PR inadvertently set the default headersTimeout for the undici global dispatcher to 60 seconds (60,000 ms). This overridden Node.js's native default of 5 minutes (300,000 ms), causing nightly evaluations and long-running context queries to fail abruptly with HeadersTimeoutError: Headers Timeout Error (UND_ERR_HEADERS_TIMEOUT).

Fix:
This PR restores the 5-minute timeout window by increasing DEFAULT_HEADERS_TIMEOUT to 300,000 ms, ensuring complex model generation requests have sufficient time to return their initial response headers.

…ndici timeouts

Fixes an issue introduced in #20441
where the `headersTimeout` was inadvertently lowered from Node's 5 minute default
to 60 seconds, which caused nightly evaluations to fail with
`HeadersTimeoutError: Headers Timeout Error (UND_ERR_HEADERS_TIMEOUT)`.
@gundermanc gundermanc requested a review from a team as a code owner March 2, 2026 22:03
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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a critical timeout regression that was causing failures in operations requiring extended response times, such as nightly evaluations and complex model queries. By restoring the headersTimeout to its original 5-minute default, it ensures that the system can properly handle requests without premature disconnections, preventing HeadersTimeoutError.

Highlights

  • Headers Timeout Fix: Increased the DEFAULT_HEADERS_TIMEOUT constant from 60,000 ms (60 seconds) to 300,000 ms (5 minutes) to resolve HeadersTimeoutError issues.
Changelog
  • packages/core/src/utils/fetch.ts
    • Increased DEFAULT_HEADERS_TIMEOUT to 300,000 ms (5 minutes).
Activity
  • No specific activity has been recorded for this pull request yet.
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Code Review

This pull request correctly addresses a timeout issue by increasing the DEFAULT_HEADERS_TIMEOUT from 60 seconds to 5 minutes (300,000 ms). This change, made in packages/core/src/utils/fetch.ts, restores the intended timeout duration that was inadvertently shortened in a previous update, aligning it with the DEFAULT_BODY_TIMEOUT. The fix directly resolves the problem of premature timeouts for long-running model generation requests.

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github-actions bot commented Mar 2, 2026

Size Change: -2 B (0%)

Total Size: 25.8 MB

ℹ️ View Unchanged
Filename Size Change
./bundle/gemini.js 25.3 MB -2 B (0%)
./bundle/node_modules/@google/gemini-cli-devtools/dist/client/main.js 221 kB 0 B
./bundle/node_modules/@google/gemini-cli-devtools/dist/src/_client-assets.js 227 kB 0 B
./bundle/node_modules/@google/gemini-cli-devtools/dist/src/index.js 11.5 kB 0 B
./bundle/node_modules/@google/gemini-cli-devtools/dist/src/types.js 132 B 0 B
./bundle/sandbox-macos-permissive-open.sb 890 B 0 B
./bundle/sandbox-macos-permissive-proxied.sb 1.31 kB 0 B
./bundle/sandbox-macos-restrictive-open.sb 3.36 kB 0 B
./bundle/sandbox-macos-restrictive-proxied.sb 3.56 kB 0 B
./bundle/sandbox-macos-strict-open.sb 4.82 kB 0 B
./bundle/sandbox-macos-strict-proxied.sb 5.02 kB 0 B

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@gemini-cli gemini-cli bot added the status/need-issue Pull requests that need to have an associated issue. label Mar 2, 2026
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lgtm

@gundermanc gundermanc added this pull request to the merge queue Mar 2, 2026
Merged via the queue into main with commit 3f7ef81 Mar 2, 2026
30 checks passed
@gundermanc gundermanc deleted the gundermanc/fix-timeout branch March 2, 2026 22:48
BryanBradfo pushed a commit to BryanBradfo/gemini-cli that referenced this pull request Mar 5, 2026
struckoff pushed a commit to struckoff/gemini-cli that referenced this pull request Mar 6, 2026
liamhelmer pushed a commit to badal-io/gemini-cli that referenced this pull request Mar 12, 2026
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3 participants