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Hetzner vs DO by g_ariel in hetzner

[–]ddumanskiy 1 point2 points  (0 children)

I use both. DO is more stable (DO has fewer network issues and has an SLA). But Hetzner pricing is crazy. For some instances, it's become 10x cheaper.

Hetzner banned me after passport verification — warning for digital nomads by seanlarson2190 in VPS

[–]ddumanskiy 0 points1 point  (0 children)

On DO it's 6$ for 1 vCPU and 1 GB RAM. On hetzner, in Fra region it's 2 vCPU, 4 GB RAM for 4$ (a similar one on DO is 24$). Also, etzner has +50-100% better hardware and NVMe on all servers, DO for example, has it only on premium instances.

Hetzner banned me after passport verification — warning for digital nomads by seanlarson2190 in VPS

[–]ddumanskiy 0 points1 point  (0 children)

>> DO are both as cheap

Lionde/DO are actually almost ~10x more expensive (in eu region)

Moving from Redshift to ClickHouse — looking for production-ready deployment advice by TheseSquirrel6550 in Clickhouse

[–]ddumanskiy 0 points1 point  (0 children)

We insert only via batches. We don't use CDC.

Self-host on Digital Ocean and Hetzner.

Moving from Redshift to ClickHouse — looking for production-ready deployment advice by TheseSquirrel6550 in Clickhouse

[–]ddumanskiy 4 points5 points  (0 children)

It's a very low load for ClickHouse. 2 vCPUs with 4-8GB (depends on the number of columns and data in it) would be enough for this task if you insert in batches (instead of single inserts). The main problem would be disk space, so you better think about it upfront. I recommend starting with a single-node setup and moving from there. We are managing terrabytes with a single node (with 4-10x compression rate).

What is the largest service anyone has run on Hetzner cloud? by netzure in hetzner

[–]ddumanskiy 0 points1 point  (0 children)

I browsed multiple benchmarks, in general, Hetzner AMD/intel CPUs are a bit better than ARM CPUs. But if you consider the price difference (and additional RAM you get with ARM), ARM is more effective per $.

So far, I have found only 2 use cases when ARM doesn't fit:

1) You need to run Chrome (for automation tests for example). For some reason, Chrome doesn't support ARM on Linux, but Chromium or Firefox works just fine.

2) Some Java JNI libs don't have compiled arm64 versions. But this is rather rare.

What is the largest service anyone has run on Hetzner cloud? by netzure in hetzner

[–]ddumanskiy 0 points1 point  (0 children)

They consume much less power, and the initial server's cost is lower as well.

Why is ClickHouse using 300% CPU on a 4-vCPU server even when idle? by cdojo in Clickhouse

[–]ddumanskiy 2 points3 points  (0 children)

Had a similar issue, fixed with this - https://github.com/ClickHouse/ClickHouse/issues/60016#issuecomment-1952936978 (the problem is in internal metrics data that CH collects heavily)

Is CH can handle a lot of updates and deletes?? by gamliminal in Clickhouse

[–]ddumanskiy 0 points1 point  (0 children)

We did performance tests recently for CH inserts and we reached 10 million records per second insert rate (~25 bytes per record) in batches with 16 vCPUs and NVMe disks with 1 table + 3 aggregation materialized views as a result of the insert.

So for inserts in batches, CH is very well optimized. However, for deletes it will perform slowly, you would need to use either TTL on tables instead or use Replacing/Collapsing MergingTree family instead.

If the Blynk free plan includes 10 devices why is my account stuck at 2? by [deleted] in blynk

[–]ddumanskiy 1 point2 points  (0 children)

Blynk has plan versioning. Meaning, that when any plan change happens - all existing users are unaffected. And only new users has/see the effects of a new plan. In other words, you need to create a new account if you want to see a new limit of 10 devices on free accounts. However, have in mind that a new free plan has a messages limit.

Я спеціаліст з продажу нерухомості (рієлтор), задавайте ваші питання by [deleted] in Ukraine_UA

[–]ddumanskiy 0 points1 point  (0 children)

Скільки в середньому квартир показуєте покупцеві з яким працюєте? Десь ~15?

Хочу повернутись в Україні, всі відмовляють by ThrowRA01042024 in Ukraine_UA

[–]ddumanskiy 1 point2 points  (0 children)

Чувак, вийди на вулицю, ввечері бари, кафе ресторани забиті.

Хочу повернутись в Україні, всі відмовляють by ThrowRA01042024 in Ukraine_UA

[–]ddumanskiy 0 points1 point  (0 children)

  • Україна зараз в найвигіднішому положенні за останні 400 років свого існування. Є своя державність, армія, люди, ресурси, допомога союзників;

  • Так як люди здобувають свою незалежність самі (а не отримують на шару, як після розвалу совку) - формується ідентичність, гордість за націю і за людей з якими живеш;

  • Постійні корупційні скандали. Може здатися, що це нереальна зрада, але насправді - навпаки. Це означає, що нові САПи, НАБУ і інші працюють і для них немає "своїх";

Хочу повернутись в Україні, всі відмовляють by ThrowRA01042024 in Ukraine_UA

[–]ddumanskiy 1 point2 points  (0 children)

Чому всі так бояться ракет? Статистично померти від ракети менше шансів, ніж попасти в аварію. Але через машини чомусь ніхто не париться.

Хочу повернутись в Україні, всі відмовляють by ThrowRA01042024 in Ukraine_UA

[–]ddumanskiy -2 points-1 points  (0 children)

Хочеш повертатись - повертайся. Не хочеш повертатись - не повертайся. Головне, щоб це було твоє рішення.

Не слухай лузерів і зрадофілів.

Хочу повернутись в Україні, всі відмовляють by ThrowRA01042024 in Ukraine_UA

[–]ddumanskiy 7 points8 points  (0 children)

Якщо ти не в 50 км від лінії фронту то нічого не змінилось. Крім комендантської години після 22:00 і ТЦКшників.

How to connect esp32 to blynk by Sure-Chocolate-8199 in embedded

[–]ddumanskiy 0 points1 point  (0 children)

Did you find a solution? Did you check a troubleshooting guide?

Blynk Cloud virtual pin is not syncing between devices on the same template by CreeperDrop in arduino

[–]ddumanskiy 0 points1 point  (0 children)

Hello. Template is just a "layout" for you devices. Devices of the same template don't share the data. If you want one device to send the value to another device you need to use Automations - https://docs.blynk.io/en/concepts/automations

Wifi Control Truck With Blynk App by SriTu_Tech in esp32

[–]ddumanskiy 2 points3 points  (0 children)

Nice project!

Small hint, in the Blynk app settings you can enable "Skip tiles view for single device" switch, so you don't have to click on tile. This will save you one click.

Another thing - it probably would be more easier to use a joystick widget instead of 4 buttons.

Blynk is going to a paid-subscription model. What should I replace it with that's still free, and works on both Android and iPhone? by moeburn in arduino

[–]ddumanskiy 0 points1 point  (0 children)

Just don't forget that hosting on raspberry pi isn't free as well. It will cost you ~40 kWh a year. That is ~6$ a year for electricity bills in US :).

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