Incident Postmortem

Didi Tech

Nov 23, 2023 · Operations

Root Cause Analysis of Java Process Termination Caused by Linux OOM Killer Triggered by Vim Opening a 37 GB Log File

The Java service crashed when the Linux OOM killer terminated its process after a developer opened a 37 GB log file with Vim, which loaded the entire file into the container’s 8 GB memory, triggering a port alarm and prompting investigation and recommendations to use streaming tools instead of Vim.