Having issue with DigitalOcean node

Nodes & Mining Problems
#1

hey all. Been having an issue with digital ocean node. NKNx.org says its offline. I checked everything in DO and it appears fine. nkn-commercial service running. But when I try to run ./nknd, I get this:

2021/11/19 20:13:49.863238 [INFO ] GID 1, use default https certs
2021/11/19 20:13:49.863464 [INFO ] GID 1, use default wss certs
2021/11/19 20:13:49.864461 [ERROR] GID 28, create new certManager err: unexpected end of JSON input
2021/11/19 20:13:49.977668 [INFO ] GID 1, database Version: 1
2021/11/19 20:13:50.265821 [ERROR] GID 1, chain.initialization error: open ChainDB/13304351.ldb: too many open files

nkn-commercial service is running - nknx.org still says its offline. I did have to make a couple of tweaks to the config.json files, but this consisted of copying from one working file into this one, so it shouldn’t change things.

Can anyone help? If I have to nuke this node, am I able to preserve the wallet info so I don’t have to pay another registration fee? IE could I just download the wallet files and upload those ot the new node? Trying to figure out how to best resolve this.

#2

It might be that your SyncBatchWindowSize is too high? You might want to post your config.json (delete your personal stuff) and let us have a look.

On another note, if you save your wallet.json and wallet.pswd, you can copy to a new machine and start a new node. It will not need generate ID fees. But you have to turn off the old node. Since one set of wallet/password correspond to one NKN node ID, and that has to be unique.

#3

Where woudl I find config.json in a digital ocean install? I’ve tried /home/nkn/nkn-commercial/services/nkn-node/ but I’m not sure if thats where it should be.

#4

Yes /home/nkn/nkn-commercial/services/nkn-node/ is the right place

#5

I been getting a lot of the those chain initialization errors too. I just re-download the ChainDB and resync and all is good again.