[tor-bugs] #4964 [- Select a component]: Resource starvation causes arm to overwhelm server
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Thu Jan 26 07:29:17 UTC 2012
#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.
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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4964>
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