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Service Outage Report - 20180321

Summary

This outage was caused by too many authentication requests to Mudfish Authentication Server. It was like DoS (Denial Of Service) attack but I think one of mudfish users wrote a program to use HTTP Proxy feature but wrote wrong code to handle threads. :-(

Outage Time

  • 2018-03-21 7:30 PM ~ 2018-03-21 9:00 PM (KST)
    • It lasts around one and half hours.

Done

  • Leaved a warning(?) message to the user but don't know it'd be reached. ;-)

  • Rejects a request if too many auth requests in seconds. Auth server daemon is fixed now.