That was because I had to restart the crawler for update. This disconnects the crawler from all reachable nodes temporarily and it will take about 15 minutes (3 snapshots) before the crawler stabilize again. I will look into annotating these drops with a note.
Cheers,
Addy
On Thu, Mar 27, 2014 at 12:07 AM, Mike Hearn <mike@plan99.net> wrote:
Hey Addy,
I am seeing a big drop in reachable nodes on http://getaddr.bitnodes.io/dashboard/ starting from about March 25th 7:20pm and coming back 9:35pm. Is this a glitch in the monitoring system or did some real network event happen then?