fix: restore bfj v8 buffer params to prevent export hang [DX-1002]#2344
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bfj 9.x reduced DEFAULT_BUFFER_LENGTH from 1024 to 256 and yieldRate from 16384 to 1024. On large exports these smaller values fill the buffer before the stream can drain, causing bfj's tryer loop to spin indefinitely with no timeout. Explicitly passing the v8 values restores the pre-regression behavior without reverting the CVE-2026-1615 security fix. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Lisa White (whitelisab)
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Tyler Pina (tylerpina)
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DX-1002
Summary
contentful space exporthangs indefinitely at "Writing data to file" on large exports when using bfj 9.xDEFAULT_BUFFER_LENGTHfrom 1024 → 256 andyieldRatefrom 16384 → 1024; on data-heavy exports the buffer fills before the stream can drain, causing bfj'stryerloop to spin forever with no timeoutbufferLength: 1024, yieldRate: 16384) restores pre-regression behavior while keeping the CVE-2026-1615 security fix in placeTest plan
npm run test:unit)contentful space exportagainst a space with 3,000+ entries and confirm the export completes without hangingGenerated with Claude Code