On the 3xP custom map CJ server theres a command that displays all the maps and it lags the server. I've found a few players taking advantage of the bug and spamming it. Me and a friend were in the server alone with one other person and they were spamming it. Their alias was GOLD.
Command Bug
- marty
- Erledigt
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PM the command(s) please.
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add me to the conversation pls
I think I know the command, but it should not cause lags on the server. All CoDx Servers have a increased rcon rate. This means that 80 or more /rcon says per second shouldn't be a problem
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I can confirm the command lags the server for a second or so, I've been in when people have typed it, as well as tested it myself.
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I have no idea how this is implemented in 3xP, but here's some background on it, with possible causes and fixes:
In case the command polls a readdir() thingy, hdd access times might be the blame for this (fix: cache the damn directory at map start)
In case the command tries to set 64+ cvars at once, a soft overflow might occur (the soft kind of "server command overflow" crash), which will trigger a re-ordering of the messages the server sends to the client
In case the command tries to set 128+ cvars at once, a hard overflow occurs, and the client will crash out with "server command overflow". Same should happen if someone /rcon say s over 128 messages in a single server frame (should disconnect all players with the command overflow)
Fix for the cvar stuff should be just a wait 0.05 between every 20 setclientdvar() calls, or query the amount of messages that the server intents to send to a client and adjust your rate accordingly. -
the command just outputs all maps which are available on the server.
- The gsm parses the json file with all maps,
- makes a huge string with all map names,
- split them in smaller parts (so they will fit in the char limit for /rcon say)
- send them over /rcon say
but I can't see any lags on the server, when I use it
