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PaperMC / Paper

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies
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Java heap space - problem with Starlight #7442

Closed misuda12 closed 2 years ago

misuda12 commented 2 years ago

Stack trace

java.util.concurrent.CompletionException: java.lang.OutOfMemoryError: Java heap space
     at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
     at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
     at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770)
     at ca.spottedleaf.starlight.common.light.StarLightInterface.propagateChanges(StarLightInterface.java:534)
     at net.minecraft.server.level.ThreadedLevelLightEngine.runUpdate(ThreadedLevelLightEngine.java:530)
     at net.minecraft.server.level.ThreadedLevelLightEngine.lambda$tryScheduleUpdate$27(ThreadedLevelLightEngine.java:510)
     at net.minecraft.util.thread.ProcessorMailbox.pollTask(ProcessorMailbox.java:91)
     at net.minecraft.util.thread.ProcessorMailbox.pollUntil(ProcessorMailbox.java:146)
     at net.minecraft.util.thread.ProcessorMailbox.run(ProcessorMailbox.java:102)
     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
     at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.OutOfMemoryError: Java heap space
     at ca.spottedleaf.starlight.common.light.SWMRNibbleArray.updateVisible(SWMRNibbleArray.java:334)
     at ca.spottedleaf.starlight.common.light.StarLightEngine.updateVisible(StarLightEngine.java:267)
     at ca.spottedleaf.starlight.common.light.StarLightEngine.checkChunkEdges(StarLightEngine.java:861)
     at ca.spottedleaf.starlight.common.light.StarLightInterface.checkSkyEdges(StarLightInterface.java:472)
     at ca.spottedleaf.starlight.common.light.StarLightInterface.checkChunkEdges(StarLightInterface.java:463)
     at net.minecraft.server.level.ThreadedLevelLightEngine.lambda$lightChunk$20(ThreadedLevelLightEngine.java:451)
     at net.minecraft.server.level.LightEngineThreaded$$Lambda$6811/0x0000000802101a88.get(Unknown Source)
     at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
     at ca.spottedleaf.starlight.common.light.StarLightInterface.propagateChanges(StarLightInterface.java:534)
     at net.minecraft.server.level.ThreadedLevelLightEngine.runUpdate(ThreadedLevelLightEngine.java:530)
     at net.minecraft.server.level.ThreadedLevelLightEngine.lambda$tryScheduleUpdate$27(ThreadedLevelLightEngine.java:510)
     at net.minecraft.server.level.LightEngineThreaded$$Lambda$6814/0x00000008021027c8.run(Unknown Source)

Plugin and Datapack List

[13:30:22 INFO]: Plugins (133): AdvancedChests, AdvancedEnchantments, AdvancedPet, AntiCooldown, AntiLoggedInFromAnotherLocation, antiRedstoneClock, AntiWither, AntiWorldFly, ArmorStandEditor, asCMD, AutoShulker, AutoTool, BCommons, BeehivesPro, Brewery, BungeeGuard, Cardinal, ChatControl, ChestShop, ChunkTP, Chunky, ChunkyBorder, Citizens, CMI, CMILib, CoinFlip, ContainerPassthrough, CoreProtect, CrateReloaded, CrystamaeHistoria, CustomArrowTrails, CustomBiomeColors, DeathMessages, DecentHolograms, DeluxeCombat, DeluxeMenus, DeluxeSellwands, DeluxeTags, DoorsReloaded, DyedBackpacks, EasyDuels, EcoPower, ElitePets, EntityDetection, EvenMoreFish, ExcellentCrates, ExtraGear, ExtraHeads, ExtraTools, FakaHedaMinequery, FastAsyncWorldEdit (WorldEdit), FlowerPower, FluffyMachines, FoxyMachines, GambleBarLite, GoatHorn, HeadDatabase, InfiniteVouchers, InfinityExpansion, Insights, IPWhitelist, ItemsAdder, Jobs, KixsAutoAnnouncerPremium, KixsChatGames, LibsDisguises, Liquid, LiteXpansion, LoneLibs, LuckPerms, Marriage, MineStore, MobCoinsPlus, ModelEngine, MoneyPouch, Multiverse-Core, MythicCrucible, MythicMobs, NBTAPI, NeosNoExplosion, NexEngine, NoPhysics, PlaceholderAPI, PlayerParticles, PlayerVaults, PlayerWarps, PlugMan, ProtocolLib, PublicCrafters, PvPToggle, Quests, Residence, ResourceWorld, RestrictedCreative, SafariNet, Scyther, SFCalc, SfChunkInfo, ShopGUIPlus, Shopkeepers, SimpleUtils, Slimefun, SlimefunLuckyBlocks, SlimefunOreChunks, SlimyTreeTaps, spark, SuperbVote, SurvivalInvisiframes, TAB, TinkerTools, TitleManager, TokenManager, TradeSystem, Tweakin, UpgradeableHoppers, Vault, Vehicles, VehiclesFlags, VoidGenerator, VoteParty, Votifier, WarfareAFK, WarfareCosmetics, WarfareMention, WarfarePerks, WarfarePowerBlocks, WarfareVIP, WarfareXPloits, Wild, WildTools, WorldGuard, WVanillaTweaks, zAuctionHouseV3

Actions to reproduce (if known)

After some debugging we have experienced many server crashes with reason: Java heap space We have generated heap report and seems like we have way too many chunks loaded. Is there a way to tweak this LightingFeature from our side besides forking and removing this feature ? Seems like starlight in 1.18.1 uses way to much RAM by loading chunks that are not unloaded then

Paper version

[13:29:12 INFO]: Checking version, please wait... [13:29:12 INFO]: Current: git-Purpur-1542 (MC: 1.18.1) [13:29:12 INFO]: Previous: git-Purpur-1537 (MC: 1.18.1) [13:29:12 INFO]: You are 5 version(s) behind [13:29:12 INFO]: Download the new version at: https://purpurmc.org/downloads There are no changes from Pupur side on Starlight that might affect this.

Other

-- System Details -- Details: Minecraft Version: 1.18.1 Minecraft Version ID: 1.18.1 Operating System: Linux (amd64) version 5.4.0-87-generic Java Version: 17.0.1, Oracle Corporation Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Oracle Corporation Memory: 6693547008 bytes (6383 MiB) / 21474836480 bytes (20480 MiB) up to 21474836480 bytes (20480 MiB) CPUs: 32 Processor Vendor: AuthenticAMD Processor Name: AMD Ryzen 9 5950X 16-Core Processor Identifier: AuthenticAMD Family 25 Model 33 Stepping 0 Microarchitecture: Zen 3 Frequency (GHz): -0.00 Number of physical packages: 1 Number of physical CPUs: 16 Number of logical CPUs: 32 Graphics card #0 name: GK208B [GeForce GT 710] Graphics card #0 vendor: NVIDIA Corporation (0x10de) Graphics card #0 VRAM (MB): 160.00 Graphics card #0 deviceId: 0x128b Graphics card #0 versionInfo: unknown Virtual memory max (MB): 64388.73 Virtual memory used (MB): 93875.01 Swap memory total (MB): 0.00 Swap memory used (MB): 0.00 JVM Flags: 21 total; -Xms20G -Xmx20G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=40 -XX:G1MaxNewSizePercent=50 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=15 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=20 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -XX:ParallelGCThreads=6 crash-2022-02-04_10.57.47-server.txt

kennytv commented 2 years ago

You are not running Paper. Most likely you either don't have enough ram or a plugin is leaking big time. In any case, if something is leaking, it'd be impossible to figure out what without a heap dump.