# CN pool collapse a few hours every day **URL:** \ **Category:** Server operators\ **Created:** [February 5, 2024, 11:33am UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225 "2024-02-05T11:33:23Z")\ **Posts on this page:** 9\ **Page:** 3
**Author:** ![HAHAHAHA](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/hahahaha/32/2475_2.png) [@HAHAHAHA](https://community.ntppool.org/u/HAHAHAHA)\ **Post date:** [February 11, 2024, 2:14pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/41 "2024-02-11T14:14:05Z")
TLDR, adding ipv6 to the main domain and let everybody to use it is the way to go. ---
**Author:** ![PoolMUC](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/poolmuc/32/1473_2.png) [@PoolMUC](https://community.ntppool.org/u/PoolMUC)\ **Post date:** [February 11, 2024, 2:22pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/42 "2024-02-11T14:22:56Z")
Sure, and flipping the switch on the wall is what makes the light bulb glow. And when it doesn’t, just keep yanking the switch until it does. 😉 ---
**Author:** ![iocc](https://avatars.discourse-cdn.com/v4/letter/i/ba9def/32.png) [@iocc](https://community.ntppool.org/u/iocc)\ **Post date:** [February 11, 2024, 6:30pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/43 "2024-02-11T18:30:28Z")
> [@Bas](#): > > But they can use [pool.ntp.org](http://pool.ntp.org) or [pool2.ntp.org](http://pool2.ntp.org) > > I fail to see the problem on this matter. > > The time will be correct and plenty servers will help them out. But now is the case that they have [cn.pool.ntp.org](http://cn.pool.ntp.org) configurated and not something else. > [@Bas](#): > > As for overloading, have you tried to find what specific IP’s are causing this? Maybe just a few overload your system, then you could block them and see if it helps. Its just to much traffic during peak but I have identified a few networks that just sends too many requests. No idea if its just broken or intensional. Or maybe many behind NAT. I have had them blocked for many years. I notice now that a few of them actually have stopped sending traffic and some are still sending traffic. ---
**Author:** ![iocc](https://avatars.discourse-cdn.com/v4/letter/i/ba9def/32.png) [@iocc](https://community.ntppool.org/u/iocc)\ **Post date:** [February 11, 2024, 6:32pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/44 "2024-02-11T18:32:15Z")
Many wise and interesting comments in this thread. No need to repeat things. However, no word from ask and no action has happend and I cant wait so I have lowerd the bandwidth even more - so hopefully I can survive the CN pool collapse better next time. Sadly, a consequence of this, alot of bandwidth and resources wont be used at all. It would be better if they could be used in the global pool but not in the CN pool during peak time. If that would be possible @ask ? ---
**Author:** ![apuls](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/apuls/32/1467_2.png) [@apuls](https://community.ntppool.org/u/apuls)\ **Post date:** [February 11, 2024, 9:18pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/45 "2024-02-11T21:18:06Z")
Can the CN zone server operators take a look to their traffic in the next days ? ---
**Author:** ![iocc](https://avatars.discourse-cdn.com/v4/letter/i/ba9def/32.png) [@iocc](https://community.ntppool.org/u/iocc)\ **Post date:** [February 13, 2024, 7:17pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/46 "2024-02-13T19:17:17Z")
For me it has been greatly improved. Almost no red dots and not as bad score anymore. Im not sure exactly how many servers that was in the pool during the peak but I noticed that it was much better and that is the same for servers that the change I did 2 days ago didnt affect. What did you do? 🙂 Tomorrow I will take a closer look during peak. ---
**Author:** ![apuls](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/apuls/32/1467_2.png) [@apuls](https://community.ntppool.org/u/apuls)\ **Post date:** [February 14, 2024, 4:50pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/47 "2024-02-14T16:50:01Z")
Sounds good. Pressing both thumbs that it will work in the future. Long storry - short: I’ve asked a big company which is already present in the pool for some help and they saied: yes, sure 🙂 ---
**Author:** ![iocc](https://avatars.discourse-cdn.com/v4/letter/i/ba9def/32.png) [@iocc](https://community.ntppool.org/u/iocc)\ **Post date:** [February 17, 2024, 6:34pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/48 "2024-02-17T18:34:31Z")
It seems like it did. I was a bit suprised and I wonder where did the traffic go… I did as I said and checked during peak 4 days ago. Yes, it was a bit higher during peak but it was a quite “flat” bump. Approx 26 active servers and -8 during peak, that has been repeated over the next days. I guess the problem is solved now. Say thanks to the company, it really helped 🙂 ---
**Author:** ![system](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/system/32/1_2.png) [@system](https://community.ntppool.org/u/system)\ **Post date:** [March 18, 2024, 6:34pm UTC](https://community.ntppool.org/t/cn-pool-collapse-a-few-hours-every-day/3225/49 "2024-03-18T18:34:50Z")
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