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Bug
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Resolution: Incomplete
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None
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Minecraft 18w44a, Minecraft 18w45a, Minecraft 18w47a, Minecraft 18w47b, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w02a, Minecraft 19w03a, Minecraft 19w03c, Minecraft 19w04b, Minecraft 19w05a, Minecraft 19w06a, Minecraft 19w07a, Minecraft 19w08a, Minecraft 19w08b, Minecraft 19w09a, Minecraft 19w12b, Minecraft 1.14 Pre-Release 2, Minecraft 1.14 Pre-Release 3, Minecraft 1.14 Pre-Release 4, Minecraft 1.14 Pre-Release 5, Minecraft 1.14, Minecraft 1.14.1 Pre-Release 1, Minecraft 1.14.1 Pre-Release 2, Minecraft 1.14.1, Minecraft 1.14.2 Pre-Release 1, Minecraft 1.14.2 Pre-Release 2, Minecraft 1.14.2 Pre-Release 3, Minecraft 1.14.2 Pre-Release 4, Minecraft 1.14.2, Minecraft 1.14.3 Pre-Release 3, Minecraft 1.14.3
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None
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Confirmed
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Performance
We are now closing this issue, because it has grown too indistinct. Note that this does not mean that we think performance is perfect - we will keep working on performance optimizations for future versions.
However, this Jira issue in specific has outgrown its usefulness, containing a range of different concerns all mixed together. If you still experience performance problems, please identify what the scenario is and submit specific bugs, so separate issues can be tracked separately. Also please make sure to include debug reports and all relevant information when reporting such bugs.
Note: Jira is not a discussion forum. If you have performance issues, follow the instructions above rather than posting further comments on this issue.
This bug can have multiple symptoms, including, but not limited to:
- Blocks reappear after being mined
- Entities don't move
- Chunks don't load and when entering them, the player falls out of the world
- Cannot open chests and other containers
- Cannot interact with entities
Also, when this issue occurs, the a line like this:
Can't keep up! Is the server overloaded? Running 5000ms or 100 ticks behind
will be printed occasionally in the game console.
Sometimes this issue will become so bad that it will crash the server. In that case the crash report usually has a line like Description: Watching Server.
If you experience this issue, please run a complete debug dump by following these steps:
- Generate a debug profiling (.txt file):
- Press F3 + L
Those files will be generated in the debug folder of your Minecraft instance. If you are on singleplayer, access your game directory. If you are on server, report to your system administrator. If you don't have op permission, either ask your server admin to perform the dump, or if you are on singleplayer, open your world to LAN with cheats on.
The bug
When my "ms ticks" is higher than normal, i can't place/remove blocks, drop/pick up items, use items like a carrot on a stick. Delay between my action and world's reaction are extremely high.
Upd: in snapshot 18w45a ms ticks is still really high in normal world when mobs are spawning. Chunks stops rendering sometimes, items cannot be picked up etc.
- is duplicated by
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MC-138390 Chests do not close
- Resolved
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MC-138483 18w43c In-game Consistent Lag
- Resolved
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MC-138622 The respawn button does not work
- Resolved
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MC-138627 When Loading a world into new snapshot, causes interfaces like chests, and damage taken to be delayed
- Resolved
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MC-138632 World Performance Issue - Unresponsive Mobs, Delayed Respawn
- Resolved
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MC-138649 mincraft looks a lot lag than 18.43c
- Resolved
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MC-138681 blocks and chests
- Resolved
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MC-138692 Minecraft World would rubber band (randomly when looking around) back to original position.
- Resolved
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MC-138700 Block updates occuring slowly
- Resolved
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MC-138701 Feels like I'm joining a server with a ping over 9000
- Resolved
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MC-138720 Block Duplication and Crossbow Firing Issues
- Resolved
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MC-138739 Having issues with lag like symptoms. Not able to play the game.
- Resolved
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MC-138786 Keep teleporting back to nether portal when exiting
- Resolved
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MC-138794 Sİngle player lag. What ?
- Resolved
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MC-138815 Illager Beast Reach
- Resolved
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MC-138829 Delay
- Resolved
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MC-138844 its kinda laggy
- Resolved
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MC-138856 Teleportando aleatoriamente
- Resolved
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MC-138876 Very Delayed and laggy
- Resolved
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MC-138881 There was a bunch of lag and block glitches in your new snapshot. I can barely even step on a pressure plate.
- Resolved
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MC-138885 Block and mob lag in newest snapshot
- Resolved
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MC-138895 In Minecraft 18w44a snapshot java edition, there is late response time for example a husk hit me one minute ago and didn't take andy damage then 1 minute later i took damage. Anway thankyou for making a awsome game :).
- Resolved
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MC-138902 Clicking the "Respawn" button in the "You Died!" pane dosen't despawn the player immediately
- Resolved
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MC-138909 Blocks disappear and reappear after breaking them
- Resolved
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MC-139095 ms ticks value too high
- Resolved
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MC-139164 Really bad server lag
- Resolved
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MC-139282 problem with silk touch
- Resolved
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MC-139320 Laggy Mobs
- Resolved
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MC-139667 CONTROLS ARE ALL OVER THE PLACE!!!!!
- Resolved
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MC-139730 Lag on usage of some items and menus... and the day/night cycle
- Resolved
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MC-139850 Long Lag When attacing a mob
- Resolved
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MC-139883 Minecraft sometimes derps out
- Resolved
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MC-140205 When I Break a block, it takes a few moments to register.
- Resolved
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MC-140899 I can't play Minecraft
- Resolved
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MC-140902 I cannot attack entitys
- Resolved
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MC-141047 When I am placing block its will disappear and reappear or change into the block i destoryed
- Resolved
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MC-141784 when i break blocks on survival they come back and have to wait 5 seconds
- Resolved
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MC-141954 Boat Docking
- Resolved
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MC-143040 Lag!
- Resolved
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MC-143093 In snapshot version 19w04b, severe lag spikes and fall damage taken after spikes even if player wasn't moving during spike.
- Resolved
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MC-143181 Visual Lag/Boat Disappears Upon Restart/Unable to Rejoin LAN Game
- Resolved
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MC-143261 Single machine archive delay
- Resolved
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MC-143928 Passive mobs freeze, do not respond to any interaction
- Resolved
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MC-143975 Forward moving and suddenly moved back
- Resolved
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MC-144082 Lag when mobs attack
- Resolved
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MC-144619 zombie teleporting,delay in the game. 僵尸瞬移,游戏出现延迟
- Resolved
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MC-145431 lag sometimes causes 2 blocks to break or be placed
- Resolved
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MC-145578 When I open the a snapshot world on the snapshot CPU of my laptop lags so much and on my PC it doesn't open
- Resolved
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MC-147935 help me please
- Resolved
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MC-148172 Bad optimalization
- Resolved
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MC-148251 Lag spikes when placing blocks.
- Resolved
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MC-148350 Lag when Mining/ Breaking Blocks
- Resolved
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MC-148351 Lag when picking up blocks
- Resolved
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MC-148386 Possible wrongful time simulation on server
- Resolved
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MC-148614 World lagging is singleplayer
- Resolved
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MC-148639 Game randomly lags when playing game in a new version(playing a file after the game is updated)
- Resolved
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MC-149025 After blocks are mined or broken, they don't drop and after a while, the blocks come back, and work normally.
- Resolved
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MC-149130 LAN connection - blocks don't load - gamebreaking
- Resolved
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MC-149195 server overloading.
- Resolved
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MC-149200 Crash: "Watching Server" - java.lang.Error
- Resolved
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MC-149223 Player glitching through block
- Resolved
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MC-149275 Mobs are freezing
- Resolved
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MC-149325 Server.jar crash when quickly entering the nether
- Resolved
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MC-149346 Tick processing causing lag in old world
- Resolved
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MC-149430 Mining Bug
- Resolved
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MC-149431 Boats going through the blocks because of chunks not loading
- Resolved
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MC-149434 Realms lag
- Resolved
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MC-149529 mobs frozen
- Resolved
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MC-149729 Creepers Are Lagging Terribly, Even Offline
- Resolved
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MC-149813 blocks don't de-spawn after being broken
- Resolved
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MC-149819 Server lag and low fps
- Resolved
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MC-149830 Functions causing Lag in 1.14
- Resolved
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MC-149841 Blocks coming back after being broken
- Resolved
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MC-150004 Server crashed with java.lang.Error
- Resolved
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MC-150093 Mobs lagging when engaged in combat
- Resolved
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MC-150138 Server Performance 5 TPS
- Resolved
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MC-150139 Server Lag
- Resolved
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MC-150176 error with blocks
- Resolved
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MC-150245 Delay & Lag Bug
- Resolved
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MC-150361 breaking blocks under you pushes you from the block
- Resolved
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MC-150390 Very bad performance in Minecraft 1.14
- Resolved
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MC-150459 Boat Issue
- Resolved
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MC-150489 Fishing Catch Issue
- Resolved
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MC-150549 Errors with the boats
- Resolved
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MC-150559 disconnected, server crashes on reconnect. - JDK version related?
- Resolved
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MC-150666 Server crashes on login due to server tick taking 60 seconds
- Resolved
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MC-150722 Immense server resource use (CPU/RAM), lag, crashing
- Resolved
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MC-150739 Constant missing ticks, unable to keep up on 1.14 server
- Resolved
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MC-150765 Torch Continued to Drop when Broken and cannot be picked up.
- Resolved
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MC-150878 Frequent Crash due to Ticking World
- Resolved
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MC-150993 1.14 Vanilla Server Lag / World generation problem.
- Resolved
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MC-151169 Generating new chunks while holding a map
- Resolved
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MC-151201 lagging Monsters
- Resolved
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MC-151202 Eating Food Is Slower
- Resolved
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MC-151363 Issues upgrading map from 1.13.2 to 1.14.X
- Resolved
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MC-151396 Any mob or NPC except other players and player are not moving
- Resolved
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MC-151416 Logic lag
- Resolved
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MC-151502 trying to spawn boats on land gets rid of the boat entirely
- Resolved
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MC-151531 Выпал за мир
- Resolved
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MC-151532 Cannot eat food
- Resolved
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MC-151554 Medium sized village causes extreme lag
- Resolved
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MC-151565 Slow Rendering
- Resolved
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MC-151592 Time Freezes while playing
- Resolved
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MC-151602 Cat geting stuck when i tame it
- Resolved
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MC-151631 Falling through solid blocks
- Resolved
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MC-151657 Server bug
- Resolved
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MC-151671 you have to break the block 3 times with tools before item drops
- Resolved
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MC-151819 Ms rate exceedingly high when using elytras.
- Resolved
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MC-151885 Extreme Lag with everything
- Resolved
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MC-151888 Boat falls through unloaded chunks
- Resolved
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MC-152271 Server 1.14.x crash and lags!
- Resolved
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MC-152297 1.14.1 Server lags
- Resolved
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MC-152313 Sinking in unloaded water A.K.A. The Bermuda Square
- Resolved
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MC-152343 Rubber banding in MP & SP
- Resolved
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MC-152378 Time Not Passing, Mobs Not Spawning
- Resolved
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MC-152384 Blocks not appearing correctly
- Resolved
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MC-152415 when i mine wood or dig
- Resolved
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MC-152423 block revertion in realms?
- Resolved
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MC-152428 Extremely Laggy in 1.14.1
- Resolved
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MC-152470 A Bug
- Resolved
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MC-152530 Server is lagging, players are having big MS
- Resolved
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MC-152531 Big server lags, players are having big ping.
- Resolved
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MC-152545 Very, very, VERY poor server performance.
- Resolved
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MC-152546 Enormous server resources usage, crashes, lags, low tps, people getting timed-out kicks, server unplayable !!!
- Resolved
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MC-152602 High frequency, low duration rubber banding in single player
- Resolved
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MC-152608 Realms server lag
- Resolved
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MC-152668 Mobs are moving very slowly
- Resolved
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MC-152705 Server has low TPS and crashed
- Resolved
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MC-152714 Boats
- Resolved
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MC-152753 Minecraft Server Crash Report
- Resolved
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MC-152781 All the mob has been stood in one place without moving for the game lag
- Resolved
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MC-152805 All the mob has been stood in one place without moving for the game lag
- Resolved
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MC-152938 Huge TPS drop and terrible lag when chunks loading / activating upon player login
- Resolved
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MC-152980 chunk sometime have a problem in 1.14.2 pre-release 4
- Resolved
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MC-153064 Game Breaking lag for usually good servers in 1.14.1.
- Resolved
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MC-153065 world type:default sometime have a problem with chunk
- Resolved
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MC-153236 Server lags
- Resolved
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MC-153237 Sliding off blocks broken below feet
- Resolved
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MC-153239 1.14.2 completely broken on server-side, much worse than 1.14.1, dramatically low tps and lags with just a couple of players
- Resolved
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MC-153290 ---- Minecraft Crash Report ----
- Resolved
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MC-153358 Game freezes in certain conditions
- Resolved
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MC-153362 Frequent rubber-banding in SSP world
- Resolved
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MC-153571 Lags to eating,breaking blocks , placing blocks.
- Resolved
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MC-153802 Opening/breaking procedural underwater chests crashes the server
- Resolved
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MC-153911 Server crash in 1.14.2
- Resolved
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MC-153926 Updated world to 1.14, and now it is super laggy
- Resolved
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MC-154003 Falling off pillars when you mine down
- Resolved
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MC-154230 Mobs freeze in place
- Resolved
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MC-154293 My world+1.14.2= disaster
- Resolved
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MC-154398 Laggy item drops
- Resolved
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MC-154405 Chunk unloading lag or chunk saving lag
- Resolved
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MC-154609 Huge entity TPS server lag spikes
- Resolved
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MC-154839 Game rolls back a few seconds every so often
- Resolved
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MC-154841 Day cycle has stopped
- Resolved
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MC-154890 items resetting and NPCs not moving
- Resolved
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MC-154892 Horse Glitches and unable to unglitch
- Resolved
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MC-154912 Chopping your way down out of a tree slides you off the top and you fall
- Resolved
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MC-154961 block breaking
- Resolved
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MC-155010 Singleplayer Lagging
- Resolved
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MC-155025 Horses and Loading Chunks
- Resolved
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MC-155175 Placed blocks ans entities vanish when placed.
- Resolved
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MC-155298 unable to eat food
- Resolved
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MC-155354 eating is broken
- Resolved
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MC-155375 Water buckets not properly placing water
- Resolved
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MC-155402 1.14.3 on Mac - extremely laggy on realms
- Resolved
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MC-155450 Rollbacks on servers
- Resolved
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MC-155451 Fireworks Don't Have Sound When They Explode In Sky
- Resolved
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MC-155483 Whenever I mine and try to eat something, there is a delay when the action is actually made and done
- Resolved
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MC-155548 Food dissapears while eating
- Resolved
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MC-155606 Server crashes on chunk loading
- Resolved
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MC-155644 Notorious Realms Lag
- Resolved
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MC-155656 Game freeze and cannot quite & save normally.
- Resolved
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MC-155669 High TPS in big world
- Resolved
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MC-155698 Minecraft delay on breaking blocks and hitting mobs/entitys
- Resolved
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MC-155801 Potions don't always activate when thrown at feet
- Resolved
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MC-155891 world is not loading
- Resolved
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MC-156397 1.14+ servers are horribly optimized.
- Resolved
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MC-156456 Right-click disabled when returning to Overworld from Nether
- Resolved
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MC-156477 Massive connection issues with a Realm.
- Resolved
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MC-156656 Slow performance issue
- Resolved
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MC-156703 Blocks reappear after mining them.
- Resolved
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MC-156965 Can't eat
- Resolved
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MC-156986 When i open up my world all i see is the sky everywhere and i cant move
- Resolved
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MC-156988 I cant pick up any items and i the server is extremely laggy and nothing in my server loads.
- Resolved
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MC-156989 I cant pick up items, game world doesnt load, and VERY laggy.
- Resolved
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MC-157223 High TPS
- Resolved
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MC-157275 Low TPS in 1.14.4
- Resolved
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MC-157480 I CANT GET OUT OF THE BOAT
- Resolved
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MC-157490 Takes longer to eat
- Resolved
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MC-157505 Golden Apples unable to be eaten in survival mode
- Resolved
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MC-157549 when i first start in a world and go to break a tree or when i go to mine the block that i mine without or with tool comes back and doesn't drop until u break it so many times then it chooses to drop and sometimes takes a while to pickup
- Resolved
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MC-158103 so in my minecraft game i would go to get some wood by minding a tree and every time the wood would break it would respawn, it would respawn up to 2-3 times, before i would actually be able to pick up the one wood.
- Resolved
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MCL-10970 please fix this frozen/half immune mobs bug
- Resolved
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MCL-10976 chunks
- Resolved
- relates to
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MC-165981 Crash 1.15-pre1 players can't connect
- Resolved
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MC-145744 Villager AI (POI detection) pegs CPU at 100%
- Resolved
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MC-146579 Server CPU usage at 100% for all cores
- Resolved
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MC-146811 Enderman AI causing HIGH ms tick lag
- Resolved
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MC-148039 Chunk loading causes excessive tick durations at high render distances
- Resolved
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MC-149018 High Idle CPU usage on Server Edition (Minecraft 1.14 Release)
- Resolved
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MC-149445 Iron Golem Pathfinding AI seems to be laggy
- Resolved
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MC-151082 Loading chunks creates irrecoverable lag (restart required)
- Resolved
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MC-151150 Entities (Villagers) cause massive lag when attempting to pathfind
- Resolved
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MC-151802 Spawning causes massive TPS CPU load on a flat world.
- Resolved
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MC-152630 TPS unbearable when villagers are loaded
- Resolved