Task Polkadot-validator : initialize server keys fails

[trungngv]

I am running ansible to secure the validator as instructed, but it fails at per the below message

TASK [polkadot-validator : initialize server keys] ***** fatal: [IP_ADDRESS]: FAILED! => {"changed": false, "content": "", "msg": "Status code was -1 and not [200]: Request failed: <urlopen error [Errno 111] Connection refused>", "redirected": false, "status": -1, "url": "http://localhost:9933"} to retry, use: --limit @/root/blockchain/ksm_validators/ansible/main.retry

I don't know what this error is and how can it be resolved? Please help.

Thank you.

[RomeroYang]

same issue, waiting for help...

[RomeroYang]

I am running ansible to secure the validator as instructed, but it fails at per the below message

TASK [polkadot-validator : initialize server keys] ***** fatal: [IP_ADDRESS]: FAILED! => {"changed": false, "content": "", "msg": "Status code was -1 and not [200]: Request failed: <urlopen error [Errno 111] Connection refused>", "redirected": false, "status": -1, "url": "http://localhost:9933"} to retry, use: --limit @/root/blockchain/ksm_validators/ansible/main.retry

I don't know what this error is and how can it be resolved? Please help.

Thank you.

I just researched the source code of substrate. This error was cause by the --rpc-methods=Unsafe param here: https://github.com/w3f/polkadot-secure-validator/blob/65e8cf3b99bf32d238c90acd257f8c808ef030ef/ansible/roles/polkadot-validator/templates/polkadot.service.j2#L12

Just change it to lower case: --rpc-methods=unsafe, and the rpc-service will listen on 9933 port.

[zcryptox]

same issue, tried changing it to lower case: --rpc-methods=unsafe but still getting the error. waiting for help fatal: [xx.xx.xx.xx]: FAILED! => {"changed": false, "elapsed": 0, "msg": "Status code was -1 and not [200]: Request failed: <urlopen error [Errno 111] Connection refused>", "redirected": false, "status": -1, "url": "http://localhost:9933"}

[simplyvj]

+1 with this issue

[the-love-guru]

Anyone know why this happens? I am using GCP. Thanks

[ilijad1]

Other than --rpc-methods=Unsafe issue, there might be issues with the naming format or the start command.

Refer to the process log to gather the exact issue. If its configured trough SystemD check with journalctl -f -n 550 -u polkadot.service

[the-love-guru]

I have updated the --rpc-methods=Unsafe to --rpc-methods=unsafe which made no different.

It's failing on this Ansible step: https://github.com/w3f/polkadot-secure-validator/blob/65e8cf3b99bf32d238c90acd257f8c808ef030ef/ansible/roles/polkadot-validator/tasks/session.yml#L17

All the other tasks work. For troubleshooting I jumped onto the host and tried to telnet to http://localhost:9933 and the connection timed out / got denied.

I will log on and check the process log now. Thanks for getting back to us.

Vj

[the-love-guru]

FIXED! Thanks @TickBrick that enabled to me to see that I had --name set in the main.json file when it wasnt actually needed as it was trying to set the name twice.

I just removed --name which I had added and it worked a treat :)

[tweak96]

Using ansible and have the same issue

fatal: []: FAILED! => {"changed": false, "content": "", "msg": "Status code was -1 and not [200]: Request failed: <urlopen error [Errno 111] Connection refused>", "redirected": false, "status": -1, "url": "http://localhost:9933"} to retry, use: --limit @/home/ansible_user/polkadot-secure-validator/ansible/main.retry

tried changing --rpc-methods=unsafe but no luck.

Any sloutions?

[lamafab]

@tweak96 Hi, sorry for the late response. What does sudo journalctl -u polkadot.service say? The issues mentioned above have been fixed. Do you by any chance use a custom db path?

[Ohmarr]

FIXED! Thanks @TickBrick that enabled to me to see that I had --name set in the main.json file when it wasnt actually needed as it was trying to set the name twice.

I just removed --name which I had added and it worked a treat :)

If using ansible, comment out the line in below in the inventory.yml file:

node_name='Alice Validator'

[Ohmarr]

NOTE: the original file in the repo is 'inventory.sample', but was renamed to 'inventory.yml'