I noticed that some (but not all) servers get polled less frequently now ( example ): [lessfreq] Other examples: 94.237.125.46 , 45.115.225.48 , 94.237.79.110 , 2a01:4f9:4a:460a::2 (these were not hard to find) However, according to https://status.ntppool.org/ the number of monitoring probes has not…

@avij how did you spot that so fast?! :slight_smile: Thanks everyone. One of the clickhouse shards had run out of storage (~150GB each) with the new system generating much more data. Monitoring was happening, but the graphs run off the clickhouse database that wasn’t (depending on which shard was u…

Similar story pool.ntp.org: Statistics for 69.111.183.21 [Screenshot 2026-01-02 at 3.54.08 PM]

I noticed that too. About half of my servers are still polled regularly, the rest much less than usual.

I’m not sure if it is a coincidence, but it only seems to affect the IPv4 side of my servers. The IPv6 graphs look normal.

For me too, except for one IPv6 server which is also affected.

Looks like the monitors stopped monitoring/reporting on 2025-01-02 at 15:57 UTC Is the monitoring system broken? https://www.ntppool.org/scores/69.111.183.21/log?limit=200&monitor=\ * ts_epoch,ts,offset,step,score,monitor_id,monitor_name,rtt,leap,error 1767371341,2026-01-02 16:29:01,0.001829978,1,…

I think it’s working again now.

@ask looks like the system is doing the same thing again. pool.ntp.org: Statistics for 69.111.183.21 [Screenshot 2026-01-10 at 1.01.30 PM]

Yes, i observe the same issue since around noon today, but only on some of my servers: [image]

I checked and it happens on all servers, except my monitor-only server, it seems to be checked the same ammount. And yes, it’s better to check less then before. Very good.

Some servers polled less frequently since noon today

Server operators

system Closed February 13, 2026, 2:45pm 18

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Some servers polled less frequently since noon today

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