Launcher Creates Enormous Logs When Error Tracking Site Domain is Blocked

I recently had a problem where Minecraft launcher wouldn’t start. After troubleshooting, I discovered that the issue wasn’t with the launcher itself, but it was more of a network-related problem. During my investigation, I noticed that the launcher was generating hundreds of gigabytes of log files.

When I managed to get the launcher running again, I checked the new logs, and they were still growing very fast. I deleted the previous log files, but the new file continued to increase in size rapidly. Upon inspection, I found that the launcher was repeatedly logging the same error, which appeared thousands of times, like this:

[Info: date time: jW7UQm37jmw=: NetQueue.cpp(100)] NetQueue: Action finished: https://sentry.io/api/2703928/store/
[Error: date time: jW7UQm37jmw=: SentryAPI.cpp(121)] 0 Failed to connect to sentry.io port 443 after 0 ms: Could not connect to server
[Warning: date time: jW7UQm37jmw=: NetQueue.cpp(122)] Action https://sentry.io/api/2703928/store/ failed in response handler. response code: 0 - error string: 'Failed to connect to sentry.io port 443 after 0 ms: Could not connect to server
[Info: date time: jW7UQm37jmw=: NetQueue.cpp(208)] NetQueue: Starting net action https://sentry.io/api/2703928/store/
[Error: date time: jW7UQm37jmw=: CurlNetQueue.cpp(574)] NetQueue: No ip address available. Error code 7, Host: sentry.io
[Error: date time: jW7UQm37jmw=: CurlNetQueue.cpp(649)] NetQueue: Action failed with result "Failed to connect to sentry.io port 443 after 0 ms: Could not connect to server" (7) : https://sentry.io/api/2703928/store/

It turns out that the root cause was the recent installation of hblock, which blocked access to the Sentry API domain (sentry.io). Although this was the cause of the error (a blocked domain), the launcher’s error handling mechanism was really aggressive. Instead of simply retrying a few times, the launcher tried to send requests in an infinite loop.