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Chris Whittleston:

> Do you think it might help to restart tor every 24 hours or so
> using cron Dan - or would that adversely affect the network too
> much/not actually help?

Generally restarting a Tor relay is something you want to do as little
as possible.  I'm not sure if a quick graceful restart will ruin your
Stable flag, but if you do have a Stable flag, you're killing every
circuit through you when you restart.

So, try to keep tor up 24/7 rather than restarting it a lot.

Best,
- -Gordon M.

> On 14 Oct 2013 22:32, "Dan Staples" <danstaples@disman.tl> wrote:
>
>> In my experience, setting the bandwidth advertising options does
>> nothing to stop the "storms" of circuit creation requests. It
>> *will* affect the *average* bandwidth used by your relay, but
>> every once in a while, I'll still get circuit-creation storms
>> that completely overwhelm my RPi and knock it offline (I'm
>> talking continuous 3Mbps bandwidth use for several hours when
>> MaxAdvertisedBandwidth is 200 kbps). It seems from past
>> discussions on the mailing list, this is still an unresolved
>> issue.
>>
>> On Mon 14 Oct 2013 04:43:50 PM EDT, Chris Whittleston wrote:
>>> Thanks Logforme - yeah I was trying that before I sent the
>>> first email in this chain, but maybe I didn't go low enough
>>> with the advertised bandwidth. When the 0.2.4 compilation is
>>> done (it's still chugging along) I'll try going lower and see
>>> if it helps.
>>>
>>> Chris
>>>
>>>
>>> On 14 October 2013 21:38, Logforme <m7527@abc.se
>>> <mailto:m7527@abc.se>> wrote:
>>>
>>> On 2013-10-14 22:01, Chris Whittleston wrote:
>>>> I see - so I'll probably still see the problem with a huge
>>>> number
>> of
>>>> circuits being created after I've finished building 0.2.4. Is
>>>> there any way to limit this, I'm guessing reducing the
>>>> bandwidth wouldn't actually help? I guess I'll look into how
>>>> much further I can
>>> overclock
>>>> the CPU...
>>> Only option that I know of is to reduce the bandwidth you
>>> advertise
>> to
>>> the network. The more bandwidth you advertise the more
>>> circuits the tor network will throw at your relay. The
>>> following flags in the torrc file can be used (with my current
>>> understanding of them): BandwidthRate : The max bandwidth you
>>> provide over a long period of time BandwidthBurst : The max
>>> bandwidth you provide over a short period of time
>>> MaxAdvertisedBandwidth : The max bandwidth you tell the tor
>>> network about So you can set BandwidthRate to the real max you
>>> want to provide and then set MaxAdvertisedBandwidth to a number
>>> low enough to prevent circuit overload.
>>>

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