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.