Crash on startup after power outage

[PFreak]

Hello!

My computer lost power the other day (while the dedicated server was running) and since then it crashes a little bit after startup every time. I tried a few things already, but I'm not sure what the problem is exactly, so I'm hoping somebody more knowledgeable here might have a solution for me, as I and my friends have been playing on this world for some time now. The server is being run from a Debian machine. Posting the part from the server log that I think is causing the crashes:

[00:00:19]: OVERRIDE: setting    autumn    to    noseason    
[00:00:19]: OVERRIDE: setting    spring    to    noseason    
[00:00:19]: OVERRIDE: setting    hounds    to    never    
[00:00:19]: OVERRIDE: setting    winter    to    verylongseason    
[00:00:19]: OVERRIDE: setting    resettime    to    none    
[00:00:19]: OVERRIDE: setting    day    to    longdusk    
[00:00:19]: OVERRIDE: setting    basicresource_regrowth    to    always    
[00:00:19]: OVERRIDE: setting    summer    to    noseason    
[00:00:19]: OVERRIDE: setting    portalresurection    to    always    
[00:00:19]: OVERRIDE: setting    ghostsanitydrain    to    none    
[00:00:19]: OVERRIDE: setting    weather    to    often    
[00:00:23]: Could not find anim [FROMNUM] in bank [eyeofterror]
[00:00:27]: Reconstructing topology    
[00:00:27]:     ...Sorting points    
[00:00:27]:     ...Sorting edges    
[00:00:27]:     ...Connecting nodes    
[00:00:27]:     ...Validating connections    
[00:00:27]:     ...Housekeeping    
[00:00:27]:     ...Done!    
[00:00:27]: You must first AddTimer before you can start a timer    bearger_timetospawn    
[00:00:27]: [string "scripts/components/worldsettingstimer.lua"]:21: attempt to perform arithmetic on field 'timeleft' (a nil value)
LUA ERROR stack traceback:
scripts/components/worldsettingstimer.lua:21 in (method) AddTimer (Lua) <7-24>
   self =
      timers = table: 0xe742df0
      inst = 100029 - world (valid:true)
      saved_timers = table: 0xe742e40
   name = bearger_timetospawn
   maxtime = 0
   enabled = false
   callback = function - scripts/components/beargerspawner.lua:229
   externallongupdate = nil
   saved = table: 0x90a1470
scripts/components/beargerspawner.lua:261 in (method) OnPostInit (Lua) <254-267>
   self =
      DoWarningSpeech = function - scripts/components/beargerspawner.lua:274
      DoWarningSound = function - scripts/components/beargerspawner.lua:282
      LongUpdate = function - scripts/components/beargerspawner.lua:333
      SummonMonster = function - scripts/components/beargerspawner.lua:416
      SetFirstBeargerChance = function - scripts/components/beargerspawner.lua:250
      GetDebugString = function - scripts/components/beargerspawner.lua:400
      LoadPostPass = function - scripts/components/beargerspawner.lua:379
      OnPostInit = function - scripts/components/beargerspawner.lua:254
      SetSecondBeargerChance = function - scripts/components/beargerspawner.lua:246
      OnLoad = function - scripts/components/beargerspawner.lua:364
      OnSave = function - scripts/components/beargerspawner.lua:341
      OnUpdate = function - scripts/components/beargerspawner.lua:292
      inst = 100029 - world (valid:true)
   totalbeargerchance = 1
scripts/prefabs/world.lua:315 in (method) PostInit (Lua) <306-326>
   inst = 100029 - world (valid:true)
   k = beargerspawner
   v = table: 0xd2afe90
scripts/gamelogic.lua:990 in (upvalue) DoInitGame (Lua) <855-1051>
   savedata = table: 0xf374220
   profile = table: 0x6a1bff0
   was_file_load = false
   options = table: 0x5c6e130
   Levels = table: 0x736f980
scripts/gamelogic.lua:1085 in (local) cb (Lua) <1079-1086>
   savedata = table: 0xf374220
scripts/shardindex.lua:214 in (upvalue) OnLoadSaveDataFile (Lua) <196-215>
   file = session/8EBA0F2FB932BA8D/0000000091
   cb = function - scripts/gamelogic.lua:1079
   load_success = true
   str = local savedata = {}
local tablefunctions = {}
tablefunctions["map_fn"] = function()
return {tiles="VlJTTgABAAAAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAA [**truncated**]
   success = true
   savedata = table: 0xf374220
scripts/shardindex.lua:219 in () ? (Lua) <218-220>
   load_success = true
   str = local savedata = {}
local tablefunctions = {}
tablefunctions["map_fn"] = function()
return {tiles="VlJTTgABAAAAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAEAAQABAAE
[00:00:27]: [string "scripts/components/worldsettingstimer.lua"]:21: attempt to perform arithmetic on field 'timeleft' (a nil value)
LUA ERROR stack traceback:
    scripts/components/worldsettingstimer.lua:21 in (method) AddTimer (Lua) <7-24>
    scripts/components/beargerspawner.lua:261 in (method) OnPostInit (Lua) <254-267>
    scripts/prefabs/world.lua:315 in (method) PostInit (Lua) <306-326>
    scripts/gamelogic.lua:990 in (upvalue) DoInitGame (Lua) <855-1051>
    scripts/gamelogic.lua:1085 in (local) cb (Lua) <1079-1086>
    scripts/shardindex.lua:214 in (upvalue) OnLoadSaveDataFile (Lua) <196-215>
    scripts/shardindex.lua:219 in () ? (Lua) <218-220>
    =[C]:-1 in (method) GetPersistentString (C) <-1--1>
    scripts/shardindex.lua:218 in (method) GetSaveDataFile (Lua) <217-221>
    scripts/shardindex.lua:239 in (method) GetSaveData (Lua) <223-244>
    scripts/gamelogic.lua:1087 in (upvalue) DoLoadWorld (Lua) <1078-1088>
    scripts/gamelogic.lua:1140 in (upvalue) LoadSlot (Lua) <1134-1146>
    
[00:00:27]: Check for write access: TRUE
[00:00:27]: Check for read access: TRUE
[00:00:27]: Available disk space for save files: 778370 MB
[00:00:27]: ModIndex: Load sequence finished successfully.    
[00:00:28]: Reset() returning

 

Thanks in advance for at least taking a look!

[Daniel86268]

Check if you have a mod that affects or at least accesses the spawn timers of Seasonal Bosses, specifically Bearger spawn timers.

[PFreak]

7 hours ago, Daniel86268 said:

Check if you have a mod that affects or at least accesses the spawn timers of Seasonal Bosses, specifically Bearger spawn timers.

I tried disabling all mods in modoverrides.lua, still have the same thing. All the mods I'm using are in this pack, and yes, some of them do have settings that affect Bearger spawn timers, among other things.

[PFreak]

If anyone finds themselves in a similar situation - I went to /home/*YOUR USERNAME*/.klei/DoNotStarveTogether/Cluster_1/Master/save/session and deleted the newest sessions (marked by incrementally increasing numbers, always incremented by 1) one by one, trying to start the server up each time. After a couple of them, the server started up normally, which I'm guessing means the newest saves got corrupted.

 

Looks like I'll need to buy a UPS for my server computer to avoid something like this happening again. In the meantime, I'll probably be making backups after every gaming session I have with my friends.

[PFreak]

Scratch that. The above allowed my friends and I to play for some time now. However, when I shutdown the server again with the command c_shutdown() (which, as far as I'm aware is the proper way to shut down a dedicated server), which I had to do beacuse there was an update, on the next startup the server started crashing again with bearger spawn timer messages. Getting really frustrating.

[PFreak]

Another update - spent half a day trying to fix this. In the end what managed to get the server running is me opening the last session save and manually editing the bearger spawn timer value from "timeleft=inf" to "timeleft=0". Not sure why it would be set as that string or what meaning (if any) that string has. No idea what could have possibly caused this, but it was the reason for the crashes.

 

Also, I immediately tested shutting down the server again with c_shutdown() and starting it up again to see if it would happen again. After that shutdown it crashes even faster, giving a similar, but slightly different error about a global value "nan" being nil.

 

Does anyone have any ideas what could be causing this and how I could prevent it from happening? It is a very annoying issue, with my friends and I not being sure if we are going to be able to play again for some time every time there is an update to the game.

[Daniel86268]

No idea what's causing this on your server. My experience tells me to blame your mods.

It is correct to shut down the server using c_shutdown(). However I've experienced a few times that the server doesn't do a save when shutting down like that, so the server reset to the last morning auto save.

You can try doing a c_save() before the c_shutdown() and see if that at least does a good save that the next server start can use.

[PFreak]

I'm now doing a c_save() and then a c_shutdown() every time the server needs to be turned off. I tested it once after fixing the initial error and shutting down the server immediately after turning it on, which caused another similar error.

 

However, after fixing the initial error and running the server for some time, I can report two successful shutdowns and startups (had to do it for updates). So, with any luck the problem fixed itself now. If not, I at least have a general idea of how to fix any new problems (if they are similar to the previous ones).