speed tests are timing out

[blnprasad]

seems like speed test from cli failing. but same working from UI.

out/librespeed-cli-linux-amd64
Retrieving server list from https://librespeed.org/backend-servers/servers.php
Selecting the fastest server based on ping
Error checking for server status: Get "https://speedtest5.wegozyn.eu/backend/empty.php": dial tcp: lookup speedtest5.wegozyn.eu on 8.8.8.8:53: no such host
Server Frankfurt am Main, Germany (speedtest5.wegozyn.eu) doesn't seem to be up, skipping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Server New York, United States (1) (BuyVM) (ny1.backend.librespeed.nixnet.services) doesn't seem to be up, skipping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Failed to ping target host: socket: permission denied
Will try TCP ping
Error checking for server status: Get "https://la1.us.backend.librespeed.org/empty.php": dial tcp 185.198.26.89:443: connect: no route to host
Server Los Angeles, United States (2) (HostHatch) (la1.us.backend.librespeed.org) doesn't seem to be up, skipping
Failed to ping target host: socket: permission denied
Will try TCP ping
Error checking for server status: Get "https://il1.us.backend.librespeed.org/empty.php": context deadline exceeded (Client.Timeout exceeded while awaiting headers)
Server Chicago, United States (HostHatch) (il1.us.backend.librespeed.org) doesn't seem to be up, skipping
Failed to ping target host: socket: permission denied
Will try TCP ping --> hangs here

[adolfintel]

This may be related to some attacks that we've been getting on some of our servers.

[blnprasad]

I could still see its failing but always working with UI. when I debugged I found that due to some race condition, it stuck at collecting ping results job. with below changes I found it always working.

git diff speedtest/speedtest.go
diff --git a/speedtest/speedtest.go b/speedtest/speedtest.go
index 4323560..ac2bae5 100644
--- a/speedtest/speedtest.go
+++ b/speedtest/speedtest.go
@@ -258,8 +258,8 @@ func SpeedTest(c *cli.Context) error {
               log.Info("Selecting the fastest server based on ping")

               var wg sync.WaitGroup
-               jobs := make(chan PingJob, 10)
-               results := make(chan PingResult, 10)
+               jobs := make(chan PingJob, len(servers))
+               results := make(chan PingResult, len(servers))
               done := make(chan struct{})

[maddie]

Nice catch! Would you mind submitting a PR?

[blnprasad]

sure. I do not have permissions to push remote branch and raise PR.

[maddie]

You can fork the repo into your own namespace and make changes there, then you can submit PR from your repo.

[blnprasad]

thanks. i've raised PR for same.

[maddie]

Merged, thanks!

Closing this issue now.