CHAINLINK 节点：我该如何解决“无法锁定 ORM”错误？

Question

I am not overly familiar with the process of setting up a chainlink node. I have done so today, but am running into an issue. On the very last step, when attempting to start the chainlink node I put the following into the command line:

cd ~/.chainlink-kovan && docker run -p 6688:6688 -v ~/.chainlink-kovan:/chainlink -it --env-file=.env smartcontract/chainlink local n

When this runs the pulls all say "pull complete"

I am getting the following ORM errors:

2020-10-15T22:07:30Z [ERROR] unable to lock ORM: dial tcp 127.0.0.1:5432: connec t: connection refused logger/default.go:139
stacktrace=github.com/smartcontrac
tkit/chainlink/core/logger.Error

/usr/local/go/src/runtime/proc.go:203 2020-10-15T22:07:30Z [FATAL] Unable to initialize ORM: dial tcp 127.0.0.1:5432:
connect: connection refused unable to open for gorm DB

I am not sure what might be the issue. Could someone point me in the direction I might start in the debug this issue?

Answer 1

[ERROR] unable to lock ORM is the default message given when the data is not able to be reached, and it also don't see another user with a lock. You can see the reason it can't connect to the ORM is because: dial tcp 127.0.0.1:5432: connec t: connection refused To fix, you can try a number of different things:

1. Try to access the postgress database using the parameters of the DATABASE_URL

If you can't get into the DB with the parameters of the DATABASE_URL there might be something wrong with that. You can see if you can connect by downloading the psql client . If on ubuntu you can use:

sudo apt-get update
sudo apt-get install postgresql-client

and then running something like psql -h IP_HERE -U USER_HERE and then entering your password

2. Add --network host for local databases

If you are running your node/database locally you'll have to add --network host to your chainlink docker command.

3. Try localhost , 172.17.0.1 , or use a cloud DB if you're using a mac.

Docker is a little tricky when it comes to IPs. If you are running a local DB and you are trying to use 127.0.0.1 , you may want to try localhost . On a mac, you'll run into issues since the docker gateway doesn't play nicely with macos, and easy work around is to get a database URL from a cloud database like on heroku, GCP, or AWS.

If none of these work for you, please add a comment and we can update this answer.

Answer 2

在查看 Patrick 的视频后，我注意到我正在复制公共 IP，而实际上，GCP 的私有 IP 是您在命令中运行 docker 时需要使用的