[tor-relays] Possible Connection Storm

[Eddie]

Checking my relays after being away for a few days, noticed that one of 
them was showing as Overloaded, which I've never seen in over a year's 
running.

Looking in the logs, it looks like there was a huge increase in 
connections, which has now settled down and I'm no longer showing as 
overloaded.  Here's some relevant pieces:

Apr 21 03:45:08.000 [notice] Heartbeat: Tor's uptime is 110 days 12:00 
hours, wi
th 6977 circuits open. I've sent 5236.04 GB and received 5121.19 GB. 
I've receiv
ed 5232797 connections on IPv4 and 269395 on IPv6. I've made 2018765 
connections
  with IPv4 and 580408 with IPv6.
Apr 21 03:45:08.000 [notice] Circuit handshake stats since last time: 
1901/1901
TAP, 244943/244943 NTor.

Apr 21 07:04:49.000 [warn] Your computer is too slow to handle this many 
circuit
  creation requests! Please consider using the MaxAdvertisedBandwidth 
config opti
on or choosing a more restricted exit policy.

Apr 21 09:45:08.000 [notice] Heartbeat: Tor's uptime is 110 days 18:00 
hours, wi
th 47998 circuits open. I've sent 5263.73 GB and received 5148.85 GB. 
I've recei
ved 5244063 connections on IPv4 and 270025 on IPv6. I've made 2021914 
connection
s with IPv4 and 581488 with IPv6.
Apr 21 09:45:08.000 [notice] Circuit handshake stats since last time: 
1609/1609
TAP, 6391488/6532508 NTor.

Apr 21 15:45:08.000 [notice] Heartbeat: Tor's uptime is 111 days 0:00 
hours, wit
h 45439 circuits open. I've sent 5300.03 GB and received 5185.19 GB. 
I've receiv
ed 5253283 connections on IPv4 and 270537 on IPv6. I've made 2024515 
connections
  with IPv4 and 582464 with IPv6.
Apr 21 15:45:08.000 [notice] Circuit handshake stats since last time: 
467/467 TA
P, 9937327/9984534 NTor.

Is this anything I need to be concerned about, or is it just one of 
things that occasionally happens.

Cheers.