Worked fine this morning, and now it has some kind of error of which I have no idea. I can render it just fine (PixelMap), but trying to open it in MCEdit leads to a partial load, then MCEdit crashing. Whenever it's loaded as an SMP map, it eats up memory until java crashes (about the rate of 50 MB/s increasing). When it's loaded as a singleplayer map, it will hang on "Building Terrain", and eat up memory until java crashes.
This was tested on two seperate PCs, one with Vista 32bit, the other Vista 64bit. 32bit minecraft.jar is unmodded, 64bit is running 32x32 textures using Xau's patcher. Map is 100% vanilla. Same results from each.
Any help with this would be absolutely appreciated, we have quite a bit of time spent on this map. Thanks!
Disregard the above, I believe I've got it working now.
The level metadata was irrecoverably lost. As a last resort, I replaced it with one from a different file. You will have to move the spawn back to the correct location. Terrain will not generate properly if you continue to explore the map because the map seed has changed. You should go back and read the entirity of the first and second posts, which detail such important howtos as metadata backups and other things that every server admin should do regularly.
If you have a backup of the world, you can substitute the level.dat from the backup in over the level.dat in the current version.
I am always lurking your post. :biggrin.gif:
How's the program coming along? I am looking forward to it.
I've been really busy, the tool is in the early stages of development.
Quote from Biffa001 »
Hi - really hope you can help me. This is from a very small SMP I run with me and one other chap on. Due to previous problems (probably self caused!) this is our 3rd world and we really dont want to start again!
Around the co-ords:
-52.4849
65.6200
-139.5817
there are 2 large squarish structures that have been randomly copied and pasted here from our main home. There is also a lot missing from the tall mob trap you will see here but I understand you can't put that back.
Not sure if there are any other errors here at all but this world seems to run a lot slower now too.
Thanks for your help if you are able - great work :-)
It's not looking very good for this one. It looks like it has been crashed and improperly repaired several times, and as such, I can't fix the random chunks, since the original map seed has been lost and chunks don't regenerate consistently. There is nothing that can be done, unless you have an OLD backup (if you do, follow the instructions on the first and seconds posts to restore a metadata backup). I did remove the copied chunks, which may improve performance serverside. (they regenerated wrongly though)
You might consider starting over with a new world, that one's looking pretty bad. Also, consider reading everything in the first and second posts. They contain a bunch of howtos that every server operator should know.
Hi, I ran into a somewhat weird problem in my world recently. There's a series of chunks just south of my house which freeze anything inside of them- arrows freeze midflight, mobs are motionless from the moment they spawn there and don't despawn even on peaceful, and i can't move if I enter the chunks. I don't actually care about anything in the affected chunks, since I haven't built anything in them, but they are hogging a lot of mob spawns (I've noticed numbers elsewhere going down) and it's annoying to have to go around when I want to wander off in that direction.
I saved the world standing right next to the affected chunks- you should be able to see some mobs stuck right in front of me. I also used arrows to test the edges of the affected block, and tried to put down some wool blocks to mark the closer three corners of it- it seems to be a rectangular region.
Ok, lost power today and when I got my server back up the world file is extremely corrupted. I keep getting the Java Severe warnings and such and my last backup was made three weeks ago (I know, I know, I have been busy with school, but its no excuse). My friends and little brother are very upset, and if there is anything you can do we would be extremely thankful.
Now there were already chunk errors from the conversion to the new save format in 1.3, but we are more concerned with the total loss of the stuff they had constructed recently.
Anything at all you can do would be appreciated to the extreme. You are a gentleman and a scholar for doing this for people. Thank you so much in advance, and I am implementing a cron backup job (which I should have done weeks ago) so this will never happen again.
don't use filehosting, it's really irritating. it spams me with popups and I hate giving away my email address. use mediafire.
There is one badly corrupted chunk I removed, which might allow the server to start again. Aside from that, I don't think there's anything I can do. I fixed a few less corrupted chunks as well, so the server shouldn't have as much running the map.
There is no substitute for regular backups, learn how to make them. Read the first and second posts.
It was pretty bad around the spawn area, but there's nothing that can be done about that (it seems like the map has been corrupted several times before). Get in the habit of making a nightly backup, or maybe configure a script to make one every hour.
My computer froze while i was playing so i had to shut it down manually, but when i restarted minecraft i couldn't seem to be able to recover my game. it's visible in the save folder in .minecraft, but not in the launcher.
Here is a link to my save file: http://www.mediafire.com/?1i2ilsl07p95pn2
Can anyone help me fix this?
Is there some reason it's a 1.2 world? They take soooo long to do anything with on this computer... wait wtf? there's a 1.2 and a 1.3 world in here.
Do you have a copy of the world before you tried to create another one on top of it?
Find whoever told you to do that and murder them, slowly and painfully.
I couldn't really fix it. Only patch the missing metadata with something else. Your inventory and spawn will be different, and new terrain won't match up properly with existing terrain. There is nothing more that can be done.
I suggest you read the entire first and second posts so you can prevent this from happening again.
Hello, my computer crashed while I was playing my file and it was a classic class of the disappearing world but intact save file. I was able to do the level.dat swap with some success but my hero continues to freeze in place at certain parts near my base. I was able to get inside my old base and everything is intact except for the random freeze points. Here is the original file which i cant seem to open in mcedit or anything like that. Any help would be greatly appreciated even is if its just to let me know if I'm completely screwed and should rebuild or not.
I couldn't fix it completely. Only patch the missing metadata with something else. Your inventory and spawn will be different, and new terrain won't match up properly with existing terrain. There is nothing more that can be done.
You had a corrupted region file, which would normally be very bad news (this is why MCedit wasn't loading), but I have sufficient wug-fu to recover such things, and nothing of value was lost.
I fixed all the freeze areas I could find.
I'll mark it as completely fixed because it was pretty damaged and I fixed it pretty well.
Read the first and second posts, they contain howtos on such important topics as making backups. You only need one backup to preserve the metadata.
Can you please help me? My map is corrupt and I have put much work into it. :sad.gif:
My game freeze everytime I go near my house. The map opens in MCedit but I don't know how to use it to fix the problem. From what I've read you need to find corrupt chunks but I can not find them. :sad.gif:
Windows 7 Pro x32
2GB RAM
2.1GHz Dual Core
Java 6 update 22
Why do you have a 1.2 save? I hope you didn't pirate it.
Anyway, apart from the fact that the map is out of date, I didn't find anything wrong with it. If you respond with coordinates of a place where you crash, I'll look at it again.
Technical question: The old style chunk files (e.g., c.0.0.dat) are gzipped right? Do they contain any intrinsic location info, or are they located by (file) name only?
They are. if you rename them to .gz, you can extract them with winrar. Also, I believe they do contain a location field.
They are now stored optionally either in gzipped or simply deflated chunks of indexed data within region files. Furthermore, I believe that the intrinsic location info stored within the chunk is still there, allowing us to restore chunks that have been scrambled by reading their locations.
I can't restore the metadata from nothing, it's not possible. since you have no alternative, use the level.dat from a different world and use mcedit to move the spawn back.
Alright, I'll look into doing that.
First, though... what would it do? Would it be exactly the same? I'm not really sure what you mean...
The map would be exactly the same, but your inventory would be lost and your spawn would be different. Any new terrain that you explored would not match up properly with existing terrain. Nothing can be done about this. Read the first 2 posts and learn how to make backups.
I'm in need of some help myself! Alright, so on my multiplayer server, there was an amazing map! Then, somehow... I dunno how.. it spams the console when I try to use it..
What server software are you using? I can't load it into the default server software, but it loads into mcedit just fine. I have no idea what's wrong with it, so I can't fix it.
marking as unfixable for now, may change later if I can find out what was wrong.
I found this one in the forum list so I thought I'd give it a try. The error occurs just in front of where I've saved the game (between x: 143 and 144, y: 65, z: -156) and it appears to be the entire chunk there. I've uploaded the save to mediafire:
If I understand the MCR format correctly, if the (first) offset index sector is screwed, it would be very difficult to locate the chunk bouundaries in the file?
Fault tolerance could be improved by having a marker between chunks as well as the offset index...
i updated minecraft from 1.2_02 to 1.3_01, my old singleplayer map needed to be converted, and like i read a couple of times, minecraft does this automatically when loading the singleplayer map.
the first time i did this (3 weeks ago) i can remember that minecraft really converted the map before loading it.
now, when i'm trying to load an old map, minecraft says it must be converted, but when i load the old map, minecraft does not convert the old map, it just loads it as if it were converted already. sometimes it puts me somewhere where it's completely dark and where i constantly get hurt by something till i die. and sometimes i spawn somewhere on the map, and all my buildings are gone. there's nothing i build or made.
i really hope we can fix this problem, cause i like my map :smile.gif:
I suspect that it may have involved the mods you were using.
I am unable to find any trace of whatever was there before. Sorry, but I can't help. Mods do that sometimes. Read on the first and second posts of the thread how to make backups. In future, back up the world before trying to convert to a newer format.
Hey there, just found this thread.
A few of my friends and I have this server: http://www.megaupload.com/?d=D70YG94X
Worked fine this morning, and now it has some kind of error of which I have no idea. I can render it just fine (PixelMap), but trying to open it in MCEdit leads to a partial load, then MCEdit crashing. Whenever it's loaded as an SMP map, it eats up memory until java crashes (about the rate of 50 MB/s increasing). When it's loaded as a singleplayer map, it will hang on "Building Terrain", and eat up memory until java crashes.
This was tested on two seperate PCs, one with Vista 32bit, the other Vista 64bit. 32bit minecraft.jar is unmodded, 64bit is running 32x32 textures using Xau's patcher. Map is 100% vanilla. Same results from each.
Any help with this would be absolutely appreciated, we have quite a bit of time spent on this map. Thanks!
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
I'm quite the shady customer.
Everybody stand back... I'm about to dodecapost.
(for the record, dodeca means 12)
gnomesag-world.zip
The level metadata was irrecoverably lost. As a last resort, I replaced it with one from a different file. You will have to move the spawn back to the correct location. Terrain will not generate properly if you continue to explore the map because the map seed has changed. You should go back and read the entirity of the first and second posts, which detail such important howtos as metadata backups and other things that every server admin should do regularly.
If you have a backup of the world, you can substitute the level.dat from the backup in over the level.dat in the current version.
will mark as partially fixed.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
How's the program coming along? I am looking forward to it.
I've been really busy, the tool is in the early stages of development.
It's not looking very good for this one. It looks like it has been crashed and improperly repaired several times, and as such, I can't fix the random chunks, since the original map seed has been lost and chunks don't regenerate consistently. There is nothing that can be done, unless you have an OLD backup (if you do, follow the instructions on the first and seconds posts to restore a metadata backup). I did remove the copied chunks, which may improve performance serverside. (they regenerated wrongly though)
You might consider starting over with a new world, that one's looking pretty bad. Also, consider reading everything in the first and second posts. They contain a bunch of howtos that every server operator should know.
Marking this one as unrecoverable.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
simple problem, simple solution. fixed in like 2 minutes.
marked fully recoverable.
world3fixed.rar
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
don't use filehosting, it's really irritating. it spams me with popups and I hate giving away my email address. use mediafire.
There is one badly corrupted chunk I removed, which might allow the server to start again. Aside from that, I don't think there's anything I can do. I fixed a few less corrupted chunks as well, so the server shouldn't have as much running the map.
There is no substitute for regular backups, learn how to make them. Read the first and second posts.
It was pretty bad around the spawn area, but there's nothing that can be done about that (it seems like the map has been corrupted several times before). Get in the habit of making a nightly backup, or maybe configure a script to make one every hour.
edit - forgot link
Phant0mX-world.zip
marking this one as partially repaired.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
Is there some reason it's a 1.2 world? They take soooo long to do anything with on this computer... wait wtf? there's a 1.2 and a 1.3 world in here.
Do you have a copy of the world before you tried to create another one on top of it?
Find whoever told you to do that and murder them, slowly and painfully.
I couldn't really fix it. Only patch the missing metadata with something else. Your inventory and spawn will be different, and new terrain won't match up properly with existing terrain. There is nothing more that can be done.
I suggest you read the entire first and second posts so you can prevent this from happening again.
janonthecanon71.zip
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
more like this.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
I couldn't fix it completely. Only patch the missing metadata with something else. Your inventory and spawn will be different, and new terrain won't match up properly with existing terrain. There is nothing more that can be done.
You had a corrupted region file, which would normally be very bad news (this is why MCedit wasn't loading), but I have sufficient wug-fu to recover such things, and nothing of value was lost.
I fixed all the freeze areas I could find.
I'll mark it as completely fixed because it was pretty damaged and I fixed it pretty well.
Read the first and second posts, they contain howtos on such important topics as making backups. You only need one backup to preserve the metadata.
StMonkies2.rar
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
Why do you have a 1.2 save? I hope you didn't pirate it.
Anyway, apart from the fact that the map is out of date, I didn't find anything wrong with it. If you respond with coordinates of a place where you crash, I'll look at it again.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
They are. if you rename them to .gz, you can extract them with winrar. Also, I believe they do contain a location field.
They are now stored optionally either in gzipped or simply deflated chunks of indexed data within region files. Furthermore, I believe that the intrinsic location info stored within the chunk is still there, allowing us to restore chunks that have been scrambled by reading their locations.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
The map would be exactly the same, but your inventory would be lost and your spawn would be different. Any new terrain that you explored would not match up properly with existing terrain. Nothing can be done about this. Read the first 2 posts and learn how to make backups.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
What server software are you using? I can't load it into the default server software, but it loads into mcedit just fine. I have no idea what's wrong with it, so I can't fix it.
marking as unfixable for now, may change later if I can find out what was wrong.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
Think I fixed it. Fully recovered, marked as such.
onme5.zip
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
blugh megaupload.
not sure what's wrong with this one. I'll come back to it when I've further developed my tool.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread
If I understand the MCR format correctly, if the (first) offset index sector is screwed, it would be very difficult to locate the chunk bouundaries in the file?
Fault tolerance could be improved by having a marker between chunks as well as the offset index...
I suspect that it may have involved the mods you were using.
I am unable to find any trace of whatever was there before. Sorry, but I can't help. Mods do that sometimes. Read on the first and second posts of the thread how to make backups. In future, back up the world before trying to convert to a newer format.
Marked as unfixable.
[FAQ] Extremely Common Problems
[OFFICIAL] Dragon Cave Thread