[tor-bugs] #4964 [- Select a component]: Resource starvation causes arm to overwhelm server

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#4964: Resource starvation causes arm to overwhelm server
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 Reporter:  kerrupt               |          Owner:     
     Type:  defect                |         Status:  new
 Priority:  normal                |      Milestone:     
Component:  - Select a component  |        Version:     
 Keywords:                        |         Parent:     
   Points:                        |   Actualpoints:     
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 I'm running a fast relay/exit node and as part of an audit, I ran a DoS
 attack upon the server which starved system resources.

 Once the process was complete, it caused arm to use 51% of system ram,
 approx 760mb, and 99% of available CPU power.

 The chart attached shows CPU during and after the DoS attack, and after
 7.04am the light blue shows arm's affect on the server.

 A second attachment is (unhelpfully a screenshot) of top showing the
 resources arm is using.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4964>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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