Factorio Forums

Hi,

I have a headless server to be able to switch locations without bringing my saves with me all the time. And quite often I find that I have been playing only on my local save without being connected to the server. I did some research and found out how my playing pattern is causing this.

If I play and my internet goes down, I get noticed with a warning, which is very good. If i minimize or the OS is pausing the factorio-process, the server drops me and I get noticed with a warning which is also very good. However, if I pause the game and get dropped (after some minutes), when I unpause again I am disconnected from the server, and the only notice is a faded text in the console saying "Server stopped communicating, cannot continue in game." (which I don't notice). Then I play for many hours thinking that I am still playing on the multiplayer server, while only playing local.

There really should be a huge blinking red light. The screen should shake and the game should be screaming a audible warning when this happens

Who wants it anyway ? If you are playing a multiplayer game and gets disconnected, I cannot imagine someone wanting to just be playing along locally. (OK, maybe someone, but it should be confirmed with a button saying "yes I want to continue locally"

Sorry for the rant, just looked forward to continue a game, and found out this had happened and the latest savegame is in a computer too far away

(Possibly also not a bug per se)

/Dag

Just enable Multiplayer_waiting_statistics in the debug-menu. If the server is gone then you are no longer connected.

Ok, thanks for the tip, it will make it easier to detect if I have lost communication at least.

Thanks for the report,

We will look at ways of solving this issue,
Though it may not strictly be a bug

Can't reproduce. Paused the game, disconnected the server and got the “Server stopped communicating, cannot continue in game.” dialog as I should.

It might be related to osx and powersaving/putting the process to sleep (by minimizing the window).

I also believe there is a difference in being disconnected and being dropped from the game ? Might be hard to reproduce if you can't sleep the process as I suppose OSX does when it's minimized. Maybe you can tell osx that you do not want it to be put to sleep ?

A minute or so after pausing and minimizing factorio, the logs starts saying:
29610.723 Info Synchronizer.cpp:444: NetworkTick(7730982) peer(12) drop detection state(100/600).
129613.553 Info Synchronizer.cpp:444: NetworkTick(7730988) peer(12) drop detection state(100/600).
129615.220 Info Synchronizer.cpp:444: NetworkTick(7730988) peer(12) drop detection state(200/600).

And when it gets to 600/600 I get dropped from the game. When I open factorio again, I see no change, still paused game. If I unpause and continue and play, it is on a local game.

This is how it looks after opening factorio and wanting to play again.
Yes, I might be the only person being annoyed about this (osx and minimizing a network-game) but thought you should know anyway (My first thought was, gah, the multiplayer-part in facotorio is so unstable).



Log says:

129610.723 Info Synchronizer.cpp:444: NetworkTick(7730982) peer(12) drop detection state(100/600).
129613.553 Info Synchronizer.cpp:444: NetworkTick(7730988) peer(12) drop detection state(100/600).
129615.220 Info Synchronizer.cpp:444: NetworkTick(7730988) peer(12) drop detection state(200/600).
129790.112 Info Synchronizer.cpp:444: NetworkTick(7741329) peer(12) drop detection state(100/600).
129791.779 Info Synchronizer.cpp:444: NetworkTick(7741329) peer(12) drop detection state(200/600).
129793.446 Info Synchronizer.cpp:444: NetworkTick(7741329) peer(12) drop detection state(300/600).
129795.112 Info Synchronizer.cpp:444: NetworkTick(7741329) peer(12) drop detection state(400/600).
129796.780 Info Synchronizer.cpp:444: NetworkTick(7741329) peer(12) drop detection state(500/600).
129798.445 Info Synchronizer.cpp:444: NetworkTick(7741329) peer(12) drop detection state(600/600).
129800.162 Info Synchronizer.cpp:444: NetworkTick(7741341) peer(12) drop detection state(100/600).
129801.829 Info Synchronizer.cpp:444: NetworkTick(7741341) peer(12) drop detection state(200/600).
129803.495 Info Synchronizer.cpp:444: NetworkTick(7741341) peer(12) drop detection state(300/600).
129805.162 Info Synchronizer.cpp:444: NetworkTick(7741341) peer(12) drop detection state(400/600).
129806.828 Info Synchronizer.cpp:444: NetworkTick(7741341) peer(12) drop detection state(500/600).
129808.495 Info Synchronizer.cpp:444: NetworkTick(7741341) peer(12) drop detection state(600/600).
129808.512 Info Synchronizer.cpp:590: NetworkTick(7741341) peer(12) peerHeartbeatsEmpty(false) is not responding, dropping.
129808.547 Warning Synchronizer.cpp:70: networkTick(7741342) received heartbeat(networkTick(7741335) closedTick(false) ) from unknown peer(12).
129808.548 Warning Synchronizer.cpp:70: networkTick(7741342) received heartbeat(networkTick(7741335) closedTick(false) ) from unknown peer(12).
129808.550 Warning Synchronizer.cpp:70: networkTick(7741342) received heartbeat(networkTick(7741335) closedTick(false) ) from unknown peer(12).
129808.551 Warning Synchronizer.cpp:70: networkTick(7741342) received heartbeat(networkTick(7741335) closedTick(false) ) from unknown peer(12).
129808.553 Warning Synchronizer.cpp:70: networkTick(7741342) received heartbeat(networkTick(7741335) closedTick(false) ) from unknown peer(12).
129808.553 Warning Synchronizer.cpp:70: networkTick(7741342) received heartbeat(networkTick(7741335) closedTick(false) ) from unknown peer(12).
*100 or something, then some lines with:
129808.584 Warning Synchronizer.cpp:70: networkTick(7741343) received heartbeat(networkTick(7741345) closedTick(true) ) from unknown peer(12).
129808.584 Warning Synchronizer.cpp:70: networkTick(7741343) received heartbeat(networkTick(7741346) closedTick(true) ) from unknown peer(12).
then alot of
129808.612 Warning Synchronizer.cpp:70: networkTick(7741343) received heartbeat(networkTick(7741347) closedTick(false) ) from unknown peer(12).
129808.612 Warning Synchronizer.cpp:70: networkTick(7741343) received heartbeat(networkTick(7741347) closedTick(false) ) from unknown peer(12).
and in the end:
129808.628 Info MultiplayerManager.cpp:1495: Peer dropout for peer (12) by peer (0) -- removing now
129808.629 Info MultiplayerManager.cpp:1010: networkTick(7741347) mapTick(16262677) removing peer(12) dropout(true)
129808.629 Info Synchronizer.cpp:516: networkTick(7741347) removing peer(12) success(false).
129808.629 Info MultiplayerManager.cpp:913: networkTick(7741347) mapTick(16262677) changing state from(InGame) to(InGameAligning)
129808.629 Info MultiplayerManager.cpp:1719: networkTick(7741347) mapTick(16262677) starting mapAlign
129808.629 Info MultiplayerManager.cpp:1633: networkTick(7741347) mapTick(16262677) adding mapAlignTask(RemovePlayerAlignTask)
129808.728 Info MultiplayerManager.cpp:1060: networkTick(7741353) mapTick(16262677) received stateChanged peerID(0) oldState(InGame) newState(InGameAligning)
129808.729 Info MultiplayerManager.cpp:1653: networkTick(7741353) mapTick(16262677) sending mapAlignAction
129808.828 Info MultiplayerManager.cpp:1307: networkTick(7741359) mapTick(16262677) received MapAlignAction from peer(0), mapAlignTick(16262678) appliedTickClosuresCount(0)
129808.829 Info MultiplayerManager.cpp:1735: networkTick(7741360) mapTick(16262677) mapAlign finished targetTick(16262678) updating map and running the tasks ...
129808.829 Info MultiplayerManager.cpp:1607: networkTick(7741360) mapTick(16262677) peerID(0) fullStateLog: local state(InGameAligning) local peers(((peerID(0) state(InGameAligning) mapAlignTick(16262678))
)
129808.853 Info MultiplayerManager.cpp:1754: maptick(16262678) crc before applying all ticks: -2140563956
129808.853 Info NetworkInputHandler.cpp:661: applyAllTickClosures: expectedMapTick(16262678) lastTickApplied(16262669) referenceMapTick(16262678) networkTick(7741360)
129808.854 Info MultiplayerManager.cpp:1762: maptick(16262678) crc after applying all ticks: -2140563956
129808.854 Info MultiplayerManager.cpp:913: networkTick(7741360) mapTick(16262678) changing state from(InGameAligning) to(InGameAligned)
129808.945 Info MultiplayerManager.cpp:1060: networkTick(7741366) mapTick(16262678) received stateChanged peerID(0) oldState(InGameAligning) newState(InGameAligned)
129808.945 Info MultiplayerManager.cpp:913: networkTick(7741366) mapTick(16262678) changing state from(InGameAligned) to(InGameWaitingForOthers)
129809.045 Info MultiplayerManager.cpp:1060: networkTick(7741372) mapTick(16262678) received stateChanged peerID(0) oldState(InGameAligned) newState(InGameWaitingForOthers)
129809.045 Info MultiplayerManager.cpp:1259: networkTick(7741372) mapTick(16262678) stopping mapAlign
129809.046 Info MultiplayerManager.cpp:1785: performing map align task (RemovePlayerAlignTask)
129809.046 Info MultiplayerManager.cpp:1809: networkTick(7741372) mapTick(16262678) finishing removing peer(12) hasPeer(false)
129809.046 Info MultiplayerManager.cpp:2121: NetworkTick(7741372) MapTick(16262678) disconnecting player(0) from the user.
129809.047 Info NetworkInputHandler.cpp:544: expectedMapTick(16262678) removing peer(12) success(true).
129809.047 Info Synchronizer.cpp:516: networkTick(7741372) removing peer(12) success(false).
129809.048 Info MultiplayerManager.cpp:913: networkTick(7741372) mapTick(16262678) changing state from(InGameWaitingForOthers) to(InGame)
129809.048 Info MultiplayerManager.cpp:1607: networkTick(7741372) mapTick(16262678) peerID(0) fullStateLog: local state(InGame) local peers(((peerID(0) state(InGameWaitingForOthers) mapAlignTick(-1))
)
129809.145 Info MultiplayerManager.cpp:1060: networkTick(7741378) mapTick(16262678) received stateChanged peerID(0) oldState(InGameWaitingForOthers) newState(InGame)

I tried to reproduce this (both in 0.13 and then in 0.12.x) but without success. What I did:

- create server
- connect client
- pause client
- minimise client
- kill server

and the client gets a notice box about server being disconnected ...

I think the main difference here is that you killed the server.

I never kill the server, but the server drops the client after the client stops responding to keepalive-pings ?('drop detection state' in the log)

You have to wait some minutes for the drop-detection to give up. I have 2 macbook pro's, and it happens on both of them, so this would most certainly be default behavior.

- create server
- connect client
- pause client
- minimize client
- observe the log, wait for the client being dropped ('peer(12) peerHeartbeatsEmpty(false) is not responding, dropping.')
- resume client

Sorry for not being absolutely clear about the procedure before.

Thanks for the details. That was it=) I managed to replicate the issue and fix it. In 0.13 the result is such that the game continues, but player receives a clear message that he is playing the local copy of the game (to give him a chance to save the game for instance before reconnect).

Fantastic that you made it in the .13 As long as it is virtually impossible to continue without knowing about the disconnecting I am very happy

Keep up the good work!