Retry upload - in case there is a connection issue

[neoneye]

Problem

This problem arises when there is a temporary network outage or the server is down for maintenance.
Then mined programs doesn't get uploaded, and is unfortunately lost.

Kotenok2000 reported these errors during upload

[2022-11-29T11:19:25Z ERROR loda_rust::mine::upload_worker] upload_worker: failed program upload of A117673, error: reqwest::Error { kind: Request, url: Url { scheme: "http", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("api.loda-lang.org")), port: None, path: "/miner/v1/programs", query: None, fragment: None }, source: hyper::Error(Connect, ConnectError("dns error", Os { code: 11001, kind: Uncategorized, message: "This host is unknown" })) }
miner discovered a "faster" program. A029371
[2022-11-29T11:19:25Z ERROR loda_rust::mine::upload_worker] upload_worker: failed program upload of A029371, error: reqwest::Error { kind: Request, url: Url { scheme: "http", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("api.loda-lang.org")), port: None, path: "/miner/v1/programs", query: None, fragment: None }, source: hyper::Error(Connect, ConnectError("dns error", Os { code: 11001, kind: Uncategorized, message: "This host is unknown" })) }

Solution

Kotenok2000 suggests that the uploader "retries" a few times.

[neoneye]

I encountered this problem on my raspberrypi. Firefox couldn't open any webpages and showed the error DNS_PROBE_FINISHED_NO_INTERNET. I couldn't ping any other devices on the network. Solution was to reboot the computer. Here a retry upload mechanism makes good sense.

curl: (6) Could not resolve host: api.loda-lang.org
[2022-12-06T11:28:40Z ERROR loda_rust::mine::upload_worker] upload_worker: failed program upload of A201739, error: reqwest::Error { kind: Request, url: Url { scheme: "http", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("api.loda-lang.org")), port: None, path: "/miner/v1/programs", query: None, fragment: None }, source: hyper::Error(Connect, ConnectError("dns error", Custom { kind: Uncategorized, error: "failed to lookup address information: Temporary failure in name resolution" })) }
curl: (6) Could not resolve host: api.loda-lang.org
curl: (6) Could not resolve host: api.loda-lang.org
curl: (6) Could not resolve host: api.loda-lang.org
curl: (6) Could not resolve host: api.loda-lang.org
miner discovered a "faster" program. A119681
██████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ 6/38curl: (6) Could not resolve host: api.loda-lang.org
[2022-12-06T11:32:41Z ERROR loda_rust::mine::upload_worker] upload_worker: failed program upload of A119681, error: reqwest::Error { kind: Request, url: Url { scheme: "http", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("api.loda-lang.org")), port: None, path: "/miner/v1/programs", query: None, fragment: None }, source: hyper::Error(Connect, ConnectError("dns error", Custom { kind: Uncategorized, error: "failed to lookup address information: Temporary failure in name resolution" })) }
curl: (6) Could not resolve host: api.loda-lang.org
curl: (6) Could not resolve host: api.loda-lang.org