Previously we would write to header before writing our chunk data,
which opens a window for corruption (or we would overwrite entirely).
Now the saving process has been changed to follow this chain of events:
1. We always allocate a new space to write so we do not potentially
overwrite and corrupt the current data
2. Write the chunk data first (the order of the fields in
the chunk data isn't relevant though)
3. Flush to disk
4. Write to the region header last
5. Flush to disk
6. Then we free the previous space allocated
With this chain of events it is impossible for a chunk write to corrupt
a region file, unless the operating system has lied and we have NOT flushed
to disk.
However server administrators are still recommended to continue performing
regular backups.
Note that when Mojang finally decides to change their region format
to deal with oversized chunks this patch must be changed to deal with
whatever system they decide to impose.
We also make use of two flushes to disk per chunk save (to ensure
ordering and ensure data has gone to disk), so this will negatively
affect save performance.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
7634491f Added Entity#setRotation.
CraftBukkit Changes:
0e1cea5a Added Entity#setRotation.
Plugins that rely on the async login event to fire can miss the event
if a player tries to log in before the server has loaded.
The solution is to simply block the event threads from executing until
the server has loaded. This will not have an adverse affect on logins
since the event threads are cached and are only used for executing events
asynchronously.
We pretty much reverted most of Spigots changes here as ours is better.
I guess least Spigot is trying to get closer to us? but missed..
CraftBukkit Changes:
0bf75bbd SPIGOT-4686: Enchantment ordering nondeterministic
Spigot Changes:
f09662d0 Rebuild patches
This is caused due to the DimensionManager in CB worlds not being
registered by NMS, we fix this by copying CBs behavior of using the
world providers DimensionManager, vs using the actual dimension manager
of the world
Now decounts entities that got name tagged or persistent state changed.
Removes a bad CB check that ignored some persistent mobs persistence state.
Vanilla code explicitly only cares 'is this mob persistent?' and if
it is, it is not counted. CB should not of been checking its type state.
Fixes#1922
removes Mineshaft loading legacy as we had pre 1.13.2 to avoid managing
that very large data file from legacy systems.
Previous to 1.13.2 these data files were never loaded to begin with, so they
effectively do not contain valid/relevant data.
These files take a long time to convert on large worlds and crashes the server.
Additionally, cache the result of a file being missing so we don't keep spam checking it.
This code could get hit by many threads at once, causing multiple
chunk loads to convert legacy data, leading to all sorts of fun.
Additionally, go ahead and preload it async on world load.
Instead of allocating a buffer for every chunk compression, reuse
the same 64k sized buffer.
Also stopped doing dynamic compression levels. It wasn't helping enough.
This will improve memory usage and zlib performance of chunk compression.
Exposes a mutable array on items a player should keep on death.
This allows a cleaner method to implement "Keep certain items on death"
than how plugins currently do it in that it never removes them in first
place, so its safe if the player logs out/server is shutdown before respawn.
Example Usage: https://gist.github.com/aikar/5bb202de6057a051a950ce1f29feb0b4
getting lots of bug reports on light. just going to drop this even though
I really don't see how it could be the source due to my understanding of
the games light engine...
Fixes#1920
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
CraftBukkit Changes:
4c8327f7 SPIGOT-4673: EntitySpawnEvent should not be called for players
Spigot Changes:
5629554b Rebuild patches
Use O(1) patterns for mapping conversions to improve plugin performance.
Optimize collections used by legacy plugin conversion
This should improve plugin performance across the board
on Paper for both Modern and Legacy Plugins.
Also log how long building those tables takes...
PlayerList#moveToWorld already untracks the player from the player list,
meaning that we do not need to worry about this untracking players
who've left the world, The server also untracks a player during
disconnect, handing yet another case.
If we don't need to untrack players who've left the world, it should be
reasonably save to do this, as we're not going to be performing any
server->client updates here, which is what this code is intended to do,
and all players should be untracked.
turning this to true allows 1 player to deny other players the ability
to have mobs spawn. It really is a bad idea and reverts back to iffy
mob spawn limits where mob farms in the world stops natural spawns
from occuring.
Really recommend resorting to different solutions than ever using this config.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
451bd74e Use gson for decoding version command
CraftBukkit Changes:
51100db8 SPIGOT-4678: Fix placing signs in certain circumstances
This resolves the super common complaint about mobs not spawning.
This was ultimately a flaw in the vanilla count algorithim that allows
spawners and other misc mobs to count against the mob limit, which are
not bounded, and can prevent the entire world from spawning new.
I believe Bukkits changes around persistence may of actually made it
worse than vanilla.
This should fully solve all of the issues around it so that only natural
influences natural spawns.
Allows you to return the SpawnReason for why an Entity Spawned
Pre existing entities will return NATURAL if it was a non
persistenting Living Entity, SPAWNER for spawners,
or DEFAULT since data was not stored.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Developers!: You will need to clean up your work/Minecraft/1.13.2 folder
for this
Also, restore a patch that was dropped in the last upstream
Bukkit Changes:
279eeab3 Fix command description not being set
96e2bb18 Remove debug print from SyntheticEventTest
CraftBukkit Changes:
d3ed1516 Fix dangerously threaded beacons
217a293d Don't relocate joptsimple to allow --help to work.
1be05a21 Prepare for imminent Java 12 release
a49270b2 Mappings Update
5259d80c SPIGOT-4669: Fix PlayerTeleportEvent coordinates for relative teleports
Spigot Changes:
e6eb36f2 Rebuild patches
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Please note that this build includes changes to meet upstreams
requirements for nullability annotations. While we aim for a level of
accuracy, these might not be 100% correct, if there are any issues,
please speak to us on discord, or open an issue on the tracker to
discuss.
Bukkit Changes:
9a6a1de3 Remove nullability annotations from enum constructors
3f0591ea SPIGOT-2540: Add nullability annotations to entire Bukkit API
CraftBukkit Changes:
8d8475fc SPIGOT-4666: Force parameter in HumanEntity#sleep
8b1588e2 Fix ExplosionPrimeEvent#setFire not working with EnderCrystals
39a287b7 Don't ignore newlines in PlayerListHeader/Footer
Spigot Changes:
cf694d87 Add nullability annotations
CraftBukkit already checks that we're not trying to copy data
back to the same snapshot, reverting this fixes the ability to
properly update non-snapshot blockstates
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
CraftBukkit Changes:
f102d882 SPIGOT-4647: Properly cancel VehicleDamageEvent
ec17d07d Use getBukkitEntity for ExplosionPrimeEvent instead of creating new one
Fixes GH-1887
Prior to this change, the lastTick value for zombies would be set to
their initial spawn tick. This caused the drowned conversion process to
immediately occur rather than observing the vanilla delay.
Easy fix, just make sure its set again when the process actually starts.
And no, this change has absolutely nothing to do with the other thing.
That's been fixed and remains fixed.
Mojang stored whitelist state in 2 places (Whitelist Object, PlayerList)
some things checked PlayerList, some checked object. This moves
everything to the Whitelist object.
I really don't know how this could break things with light, but wanted to
let it be an option so we can try turning it off to fix some light bug reports
Also adds a limit to stop sending Sign data to client after 500
signs per chunk to limit client lag.
Use -DPaper.excessiveSignsLimit=500 to configure that limit, or -1
to disable the limit and let your players be abused.
fixes#1878
now 80 chars counts multi sized code points the same so 80 chinese
characters would be allowed too.
Removed outbound limit as it doesn't solve the chunk oversize problem.
proper fix for chunk sending in another patch next.
we missed something in updating this patch and accidently left
hashCode as a 0 value. This caused a pretty nasty performance hit
for BlockStateEnum instances as they would be all a hash collision.
This update fixes that and also promotes the optimizations to cover
ALL cases of Block States, not just enums.
While mojang cached hashCode in 1.13, we can still just use a simple
large prime based hashCode that auto increments guaranteeing no overlap.
Additionally, replace all equals with an identity check.
modified clients can send abnormally large data from the client
to the server and it would get stored on the sign as sent.
the client can barely render around 16 characters as-is, but formatting
codes can get it to be more than 16 actual length.
Set a limit of 80 which should give an average of 16 characters 2
sets of legacy formatting codes which should be plenty for all uses.
This does not strip any existing data from the NBT as plugins
may use this for storing data out of the rendered area.
it only impacts data sent to and from the client.
Set -DPaper.maxSignLength=XX to change limit or -1 to disable
per feedback from @liach about a bug with vanillas previous logic
that we essentially just reverted to. complex recipes could run into
cases where a recipe that does have enough items can be unsatisfied
if the items are in certain orders, making them not truely shapeless.
this scenario doesn't occur in vanilla, but users can load custom recipes.
this improves the logic to do some sorting on the lists to improve
chances of matching the recipes harder ingredients before the easier
to satisfy ingredients.
the likelyhood of someone adding a recipe that still fails this is too
extreme to care about. i doubt mojangs implementation is perfect either.
we can improve this logic more later if we actually get bug reports on it.
Mojang implemented Shapeless different than Shaped
This made the Bukkit RecipeChoice API not work for Shapeless.
This reimplements vanilla logic using the same test logic as Shaped
Adds an event for when the server is going to destroy a current block,
potentially causing it to drop. This event can be cancelled to avoid
the block destruction, such as preventing signs from popping when
floating in the air.
This can replace many uses of BlockPhysicsEvent, as this will not fire
with the same velocity as BPE.
Also fixes build as a result of an upstream force push
--- work/Bukkit
Submodule work/Bukkit 217dc08d..d13fdf8c:
> SPIGOT-4637: Add source block to BlockPhysicsEvent.
--- work/CraftBukkit
Submodule work/CraftBukkit acbba8ba..cb98c6ea:
> Fix line endings in CraftDefaultPermissions
> SPIGOT-4637: Add source block to BlockPhysicsEvent.
--- work/Spigot
Submodule work/Spigot 75ee78a0c...4165cd8f4 (commits not present)
> (Manually Added) - Appears to be a result of an upstream force push
> (Manually Added) - Changed: SPIGOT-4636: Add creative mode NBT permissions
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
CraftBukkit Changes:
acbba8ba SPIGOT-4635: Restore shield damage sound
While these logs indicate something is 'off', we've had no reports
of visible 'issues' with entities, and no one is going to take the
time to debug this farther, so just getting rid of the logs so it's
like its never happening!
Ignorance is bliss.
This was a useless exception wrapper that ends up making
stack traces harder to read as well as the JVM cutting off
the important parts
Nothing catches this exception, so its safe to just get rid
of it and let the REAL exception bubble down
Upstream has released updates that appears to apply and compile correctly.
This update has only been PARTIALLY tested by PaperMC and as with ANY update, please do your own testing
I've tested basic region file saving as well as our oversized chunks approach.
Bukkit Changes:
e167e549 Clarify MerchantInventory#getSelectedRecipe.
3a1d5b8f Apply default permissions by registration order.
c64cc93f Make tags Keyed
ec037ed7 Added a method to get a list of tags
bfb6ef86 Introduce rotation methods to the Vector class
fc727372 Remove draft API from FluidLevelChangeEvent
CraftBukkit Changes:
6430d9c0 SPIGOT-4632: BlockState location is not fixed
14cd1688 Fix CraftInventoryMerchant#getSelectedRecipe if there is no active merchant recipe.
c24abab7 Load custom permissions after default permissions.
bc99dfe8 Make tags Keyed
6fce004f Added a method to get a list of tags
Spigot Changes:
e5e5c7c6 Allow Saving Large Chunks
e8d3881c Rebuild patches
Please test this build on a local TEST SERVER before sending to your live server!
PaperMC is not responsible for any data loss to your chunks.
-------------------------------------------------------------------
The Minecraft World Region File format has a hard cap of 1MB per chunk.
This is due to the fact that the header of the file format only allocates
a single byte for sector count, meaning a maximum of 256 sectors, at 4k per sector.
This limit can be reached fairly easily with books, resulting in the chunk being unable
to save to the world. Worse off, is that nothing printed when this occured, and silently
performed a chunk rollback on next load.
This leads to security risk with duplication and is being actively exploited.
This patch catches the too large scenario, falls back and moves any large Entity
or Tile Entity into a new compound, and this compound is saved into a different file.
On Chunk Load, we check for oversized status, and if so, we load the extra file and
merge the Entities and Tile Entities from the oversized chunk back into the level to
then be loaded as normal.
Once a chunk is returned back to normal size, the oversized flag will clear, and no
extra data file will exist.
This fix maintains compatability with all existing Anvil Region Format tools as it
does not alter the save format. They will just not know about the extra entities.
This fix also maintains compatability if someone switches server jars to one without
this fix, as the data will remain in the oversized file. Once the server returns
to a jar with this fix, the data will be restored.
If anything throwable is thrown, be sure its caught too.
Because I totally did new Error() out of javascript habit...
This ensures that chunk loading process cant get stuck due to uncaught errors
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
a8887389 Make AreaEffectCloudApplyEvent cancellable
CraftBukkit Changes:
a2dd0e30 SPIGOT-4615: Missing target event for withers
b26fb374 Update outdated spigot link
2b1940ae Make AreaEffectCloudApplyEvent cancellable
if a chunk load was cancelled after generating stage started
it would short circuit return with a null.
however this skipped the creation of the loadTask, which some code
would then invoke in requestChunk and trigger an NPE.
This then likely left an incomplete corrupt request in the chunk map
which then crashes servers.
It should fix these isseues
Fixes#1775Fixes#1743
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
43b46cbd SPIGOT-4608: Improve quality of MapMeta APIs
CraftBukkit Changes:
c7ba9790 Fix incorrect method descriptor in previous commit
3d19f011 SPIGOT-4608: Improve quality of MapMeta APIs
This doesn't result in the same behavior as other entities and causes
several problems. Anyone ever complain about the "Cannot send chat
message" thing? That's one of the issues this causes, among others.
If a plugin developer can come up with a valid reason to call this on a
Player we will look at limiting the scope of this change. It appears to
be unintentional in the few cases we've seen so far.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
bb813f6f SPIGOT-4605: Warn against hacking physics
CraftBukkit Changes:
2ced0233 Don't handle sync packets for kicked players
d5e96882 SPIGOT-4602: Cache reflection in decompile error workaround
Spigot Changes:
b0f4c22b SPIGOT-4605: Catch more physics problems
There is an explicit check in the handling code for empty pistons that
prevents sticky pistons from firing the event. However when we look back
at the history we see that this check was originally added so that ONLY
sticky pistons would fire the retract event. I'm not sure why.
1092acbddf
Over the course of several updates, the meaning of that field appears to
have changed from "is NOT sticky" to "is sticky". So now its having the
opposite effect. Only normal pistons fire the retraction event. And like
all things in CB, it's just been carried around since.
If we are to believe the history, the correct fix for this issue is to
flip it so it only fires for sticky pistons, but that puts us in a
bind. It's already firing for non-sticky pistons, changing it now would
likely result in breakage. Furthermore, there is little documentation as
to WHY that was ever intended to be the case.
Instead we opt to remove the check entirely so that the event fires for
all piston types.
Fixes GH-1829
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
3108e64a SPIGOT-4193: API for selecting entities by strings
CraftBukkit Changes:
ad6070df SPIGOT-4193: API for selecting entities by strings
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
d58803c2 SPIGOT-4597: Make BlockDropItemEvent use a list
d450fdf1 Add note about Maven repository usage to pom.xml
CraftBukkit Changes:
ed274c51 SPIGOT-4597: Make BlockDropItemEvent use a list
1734f378 SPIGOT-4598: Shift click on custom workbench inventory causes crash
a65b73ad Add note about Maven repository usage to pom.xml
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
60268ac8 Recipe choice lists should be copied once handed over to Bukkit
7ab335f2 Consistent multiple choice APIs for RecipeChoice.
2b6f3d7f SPIGOT-4586: Change PotionEffectType#value to not include null
CraftBukkit Changes:
2aba349f Need to update item in hand if fish bucket pickup cancelled
b634e059 SPIGOT-4591: Must mark itemstacks as dirty in case the handle itself changed
1748af89 Consistent multiple choice APIs for RecipeChoice.
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
d38ac1be Update compiler
2844ce20 Add CookTimeTotal API to Furnace
CraftBukkit Changes:
13f71402 Update compiler
61c762f4 Add CookTimeTotal API to Furnace
While this posed no issues in testing, this is the only behavioral
difference which might explain some increased reports in missing
chunks on the client
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
c64197df SPIGOT-4584: Call events for hatching turtle eggs
f54588bd Add some missing vanilla tags
dacf8f8d Fix stray asterisk in BukkitScheduler javadocs
CraftBukkit Changes:
7fc66b28 Fix minecraft.command.selector permission
47b06d5b SPIGOT-4584: Call events for hatching turtle eggs
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
18cda936 Fix variant of unloadChunkRequest that was incorrectly never deprecated
00763e1b Deprecate some methods
35a83d54 SPIGOT-4572: Make default no permission message clearer
6163343d Fix some misplaced material enum entries
8736469c Fix typo in TechnicalPiston documentation
CraftBukkit Changes:
0c715b32 SPIGOT-4579: Shulker boxes not dropping in creative
50fbc3f1 SPIGOT-4576: Fix attributes in itemstack internal data being lost
8059a937 SPIGOT-4577: Fix loss of int/double custom tags when serialized to yaml
07e504c3 Clarify exception thrown when setting drop chance for player inventory
98b862ad Fix duplicate iron golem add
843cee65 Fix a bunch of duplicate EntityCombustEvent calls
43855624 SPIGOT-4571: EntityCombustEvent not firing for phantoms
Fixes GH-1749
Setting the new default to load chunk edge neighbors may have unintended
side-effects so feedback will be important. Specifically, if you're not
using the asynchronous chunk loader, you should probably switch to mode
2 (WAIT)
Old users will be migrated automatically if: You're using engine mode 1
(HIDE) and you're using chunk-edge-mode 1 (DEFAULT). Other users will
not be migrated.
Thanks @stonar96
Zach Brown
Spottedleaf
Aikar
Shane Freeder
Joel Paulien
Mark Vainomaa
Johnny Cao
kashike
Phoenix616
Brokkonaut