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#memory-leak

2 stories

Banner: Laravel queue workers growing in memory for hours until they are OOM-killed

Web Development Bug Report

Laravel queue workers grow in memory for hours, slow down, then get OOM-killed

Daniel Tran · Aug 5, 2025 · 8 min read

Our Laravel export workers started at 70 MB and reached 1 GB after six hours, getting slower until Kubernetes killed them mid-job. An always-on query log, a static memo cache and whole-table loads were to blame. We fixed each and added worker limits.

Banner: Node.js memory leak from event listeners added per request on a shared EventEmitter

Programming Languages Bug Report

Node.js memory leak from event listeners added per request (MaxListenersExceededWarning)

Daniel Tran · Dec 5, 2024 · 8 min read

Our price streaming API grew from 180 MB to 1.4 GB of heap in a day and was restarted by the orchestrator every night. A listener was attached to a shared EventEmitter on every request and never removed. Heap snapshots proved it; removing listeners on close fixed it.