Hi guys, I’m having issues with the speed of blockchain sync. I’ve setup an Umbrel instance on GCP (Ubuntu - 1vcpu - 4GB ram - HDD - us-central). Everything was going ok (and fast) until it reached 30% aprox. Now the sync is way way too slow and I have no idea why. It’s validates 2 blocks every ~3…

Thanks for your feedback. Then it can actually be that :thinking: I’ll setup a new one in paralel ussing an SSD and see if it’s any better! Not sure how hard would be to migrate the data though but that’s a problem of future me lol Edit: New node is up, same specs the only difference is SSD. Let’s …

If you have an SSD, stop and start over. If you haven’t opened any channels (which is pretty sure because you haven’t finished syncing), restarting is no problem at all. You can just add the seed and you’re ready to restart syncing. The reason SSD is better for a node is because SSD as more reliabl…

Maybe a little bit off-topic here but SSD is not more reliable than a regular HDD, it’s in fact the opposite. SSD’s are better because they are way way waaaaaay faster to do read/write operations than mechanical disks which is quite convenient on a 360GB database like Bitcoin blockchain. Ok on-topi…

Depends on your use case. If it’s in a very stable environment with no vibration and no temperature changes you’re right that HDD can last more than SSD. But in portable devices SSD is much more reliable. So, yeah maybe in an Umbrel node HDD may be better indeed, aside from the speed.

I have been testing various pi setups and I found these things slow it down. Things that can be fixed: Use SSD saves around 20/40% Use cable over wifi Use a 8gb pi (2gb is possible but takes ages and 4gb takes about twice as slow) Make sure you are using an official power supply as if you do no…

Thanks @cryptokskillz . In this particular case I’m running them on Google Cloud, not on a Pi! I could try increasing the ram though.

Is there a way to disable TOR just for the initial sync, then re-enable it once done?

I have 2Gbps internet and an SSD and mine is still slow! Would be nice to turn off TOR for initial sync. Also would be nice to get more that 10 peers. Please help I need to kill my 2Gbps fiber pipe. :slight_smile:

Great advice! Another “trick” also: If you have another node in your LAN (local network), you can use it WITHOUT interruption or manually copying the data. You can connect the new node to your local node IP and sync it from there, faster and locally. Use the SSH command bitcoin-cli addnode "192…

That’s a cool trick. I’ll definitely do that as I do have two nodes currently. I restored a new build with the seed for my first node but oddly its missing the bitcoin in the wallet that I transferred to the first node. The first node isn’t fully synced either as I lit it up 3 days before my new and…

Blockchain sync is way too slow

Support and Troubleshooting

iguanasoft December 5, 2021, 9:14pm 17

umbrel@umbrel:~/umbrel $ docker exec bitcoin bitcoin-cli addnode "192.168.1.57:8333" "onetry"

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Blockchain sync is way too slow

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