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[tor-talk] running a stable exit node on a Raspberry Pi B+ (can it handle it?)

I'm running a brand new US exit node on a dedicated B+ model Raspberry Pi server (relay nickname: sonsorolDotNet ) configured per all the guides and running the reduced exit policy.

Trying to avoid being one of the new folks who obsess about flag status but the relay lost the Stable flag sometime yesterday despite being up and running nonstop. I want to make sure it's not because I've tuned badly or because the B+ server is underpowered for what it needs to do.

Tried to set torrc conservatively at first for bandwidth:
RelayBandwidthRate 800 KB
RelayBandwidthBurst 1600 KB

The 'arm' utility says average up/down traffic is 1Mb/sec

Log data:
Dec 24 14:35:33.000 [notice] Heartbeat: Tor's uptime is 9 days 17:55 hours, with 332 circuits open. I've sent 58.85 GB and received 60.64 GB.
Dec 24 14:35:33.000 [notice] Average packaged cell fullness: 97.712%
Dec 24 14:35:33.000 [notice] TLS write overhead: 2%
Dec 24 14:35:33.000 [notice] Circuit handshake stats since last time: 17845/2749463 TAP, 7845/8431 NTor.

The only interesting system log entry recently:
[839721.095364] TCP: TCP: Possible SYN flooding on port 9030. Sending cookies. Check SNMP counters.

Looking for pointers/tips/data on:

1. Can the raspberry pi B+ handle exit relay duties or is it potentially underpowered?

2. Best logging/debug tips to dive into stability or connection issues with the tor service?

3. raspberrian or torcc tuning tips from people with similar setups


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