Chunk Loader Issues

[Duffa13]

Hello everyone!

 

I am having an issue with chunk loaders crashing my server. This is the second time this has happened and I am really hoping someone will be able to help me. Here is my crash-report:

 

http://pastebin.com/3ftbL7KX

 

Thanks in advance!

[plowmanplow]

Looks to be more of an issue related to Ender Storage (another ChickenBones mod):

java.lang.NullPointerException
        at codechicken.enderstorage.storage.item.TileEnderChest.reloadStorage(TileEnderChest.java:98)
        at codechicken.enderstorage.common.TileFrequencyOwner.func_70312_q(TileFrequencyOwner.java:33)

The crash report does list a specific location for the ender chest. Possibly something intended to receive the output of a quarry (which loads its own chunks)? You might try removing the quarry and/or chest using MCEdit if the server crashes anytime the chunk is loaded.

[Duffa13]

I have restored my server via a backup but is there anyway to prevent this issue from happening again?

[plowmanplow]

It is really dependent on how it happened in the first place.

 

Things you might investigate:

• Were there any related crashes?
• When or how often did the server hard-terminate?
• Has the disk holding the server ever filled up?
• How are you doing your backups?
• How often are you doing a world-save?
• How many concurrent players do you have that warrants having 16G allocated to the server?

[Duffa13]

 

It is really dependent on how it happened in the first place.

 

Things you might investigate:

• Were there any related crashes?

There was a crash here is the relevant log http://pastebin.com/ugsK5Mxd

• When or how often did the server hard-terminate?

Not sure what this is?

• Has the disk holding the server ever filled up?

Not that I am aware of

• How are you doing your backups?

Backups are run once per 24 hours via a backup script and stored on external ftp backup storage

• How often are you doing a world-save?

World save every 10 minutes

• How many concurrent players do you have that warrants having 16G allocated to the server?

We don't really have that many players maybe like 5-15 but I have a dedicated server and plenty of RAM available so it should be no issue dedicating this much RAM?

 

[plowmanplow]

Believe it or not, allocating more RAM to the server (or client, for that matter) than one needs is usually a bad idea. All the unnecessary RAM can cause the garbage collector to work harder that it should at times resulting in funky lag spikes and odd behavior. It's usually a good idea to start low and work your way up as needed.

 

By hard-terminate, I just mean hang/crash/improper shutdown. Basically, instances where the internal server logic processes hung and the data on persistent storage (i.e. hard drive) can become inconsistent.

[Duffa13]

So I am still unsure what I can do to prevent these issues?

[Duffa13]

Does anyone have any idea what this error means?

 

17:53:16

 CONSOLE: 

[sEVERE] java.io.IOException: Stream Closed

17:53:16

 CONSOLE: 

[sEVERE] at java.io.RandomAccessFile.seek(Native Method)

17:53:16

 CONSOLE: 

[sEVERE] at net.minecraft.world.chunk.storage.RegionFile.func_76712_a(RegionFile.java:347)

17:53:16

 CONSOLE: 

[sEVERE] at net.minecraft.world.chunk.storage.RegionFile.func_76706_a(RegionFile.java:262)

17:53:16

 CONSOLE: 

[sEVERE] at net.minecraft.world.chunk.storage.RegionFileChunkBuffer.close(SourceFile:232)

17:53:16

 CONSOLE: 

[sEVERE] at java.util.zip.DeflaterOutputStream.close(DeflaterOutputStream.java:241)

17:53:16

 CONSOLE: 

[sEVERE] at java.io.FilterOutputStream.close(FilterOutputStream.java:160)

17:53:16

 CONSOLE: 

[sEVERE] at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75821_a(AnvilChunkLoader.java:314)

17:53:16

 CONSOLE: 

[sEVERE] at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75814_c(AnvilChunkLoader.java:299)

17:53:16

 CONSOLE: 

[sEVERE] at net.minecraft.world.storage.ThreadedFileIOBase.func_75736_b(ThreadedFileIOBase.java:39)

17:53:16

 CONSOLE: 

[sEVERE] at net.minecraft.world.storage.ThreadedFileIOBase.run(ThreadedFileIOBase.java:27)

17:53:16

 CONSOLE: 

[sEVERE] at java.lang.Thread.run(Thread.java:745)