A Reddit Post yesterday by FoxPT might have uncovered some drainage that was going amiss. If you have been experiencing severe lag in your PC or find League of Legend client crashing over and over again, deleting log might fix it. Since the update of Patch 10.7 from April 7, players have experienced crashes with connection errors all over the world.
Though Riot has been quick at solving the problems as they resurface, some of them still persist and this might be the cause of the problem. The Redditor says “I’ve been having some trouble lately connecting to EUW server. In the night from April 7th to 8th, the LoL Launcher / Menu wasn’t able to startup, or it crashed after starting. A friend told me to kill some Riot Processes in my PC so I did that and it worked once or twice.
Today I noticed my System drive was almost full, so I checked on WinDirStat and found out LoL logs were using 36GB of disk space.
You should probably check this out in your own PC and most likely delete these logs if your drive is almost full.”
The logs are a way of finding out the problems and bug info for Riot but apparently a repeated error message is causing the log files to size up to 100s of GBs even. It kills the performance for the PC for every game, process or App and has to be deleted at once.
Another Redditor, Pascals_Tricycle found the root of the problem as he states “I’m looking at the log file. Looks like every few milliseconds it is sending an API request to https://pas.geo.si.riotgames.com/pas/v1/service/chat, which obviously some kind of chat service. Since the chat server was likely down at this time, it was returning error messages and each error message was being logged.
So yeah, if you log a decent-sized error message every few milliseconds for the entire time you’ve got the client open then that’ll add up fast. I’m guessing that the client was (probably fixed by now) programmed to start making these chat API requests at some point in the login process and when logging in failed the client never stopped making these API requests to the chat server.
So I’m guessing we opened up our clients, tried to log in, saw the “authentication failed message” and from this moment on the client was invisibly just logging these error messages every few milliseconds until we finally closed our client.”
Now to fix the problem is simply deleting the log files by navigating to the log files folder. First, go to your drive then find Riot Games > League of Legends > Logs > LeagueClient Logs should pull up all recent logs. You can freely delete them to help free up some space. The other files are in the App Data > Local > Riot Games > Riot Client > Logs, and delete them all. This should effectively solve all the problems.
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