I’ve just started seeing a significant increase in traffic to selected pool servers: https://libertysys.com.au/imagebin/NTP/pool-increase-20180630.html (graphs show one week of UDP packet counts, low traffic on the first one was covered in Server score took a dive [oceania] ). It seems a little odd …

The DNS rotation system is down - see https://ntppool.statuspage.io/# - the management server also appears to be down (or to be more exact the server that hosts it’s JS and CSS files)

It’s causing us enough pain that we’re considering pulling out of one of the badly under-served pools — traffic to our server in the China pool has quadrupled. Seems like many clients we just gained are not behaving properly when given a rate-limiting KOD :frowning:

…and it was a bit worse than just clients that don’t respect KOD. ntpd then gradually climbed to 100% CPU, which meant that we weren’t always responding, which meant we got more queries, which exacerbated the problem. Throwing more cores at that VPS (which already had four cores) doesn’t help, becau…

On my servers I see that the pattern of NTP traffic has changed yesterday (and for couple hours also on Wednesday), but the average rate hasn’t changed much. The packet rate is more stable, there are no longer cycles switching between a high rate and low rate. To me it looks like the addresses retur…

Same DNS issue again, starting about midnight BST ?

Yes, I see it on my servers too. Here are graphs from two servers: [image] [image] The average rate of incoming requests didn’t change much. The rate of dropped packets (due to rate limiting) increased on one, but decreased on the other. I’m wondering what’s going on. Edit: It turned out the se…

Seems like this has started again, even though https://ntppool.statuspage.io/ says everything is fine. My UK pool servers: [yJE5qsXL9TsKqqxM] [ZIHRBSIPNwG0xyLX]

What change in Jul 10th? [jp_pool]

Increase in traffic, not just Australian servers

Server operators

publicarray July 7, 2018, 2:37am 7

Some people could serve more clients by running a multi threaded rust implementation: https://github.com/mlichvar/rsntp

ref: Getting beyond 10k qps?

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Increase in traffic, not just Australian servers

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