failed to create a child event loop minecraft что делать
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java.lang.IllegalStateException: failed to create a child event loop
Hello. For a month and so I have been encountering an error that I have been trying to resolve, but my methods never work. I have encountered a java.lang.IllegalStateException: failed to create a child event loop
Time: 8/23/15 5:29 PM
Description: Updating screen events
java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup. (MultithreadEventExecutorGroup.java:68)
at io.netty.channel.MultithreadEventLoopGroup. (MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup. (NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup. (NioEventLoopGroup.java:52)
at ll$1.a(SourceFile:44)
at ll$1.b(SourceFile:41)
at no.c(SourceFile:10)
at ll.a(SourceFile:121)
at ave.a(SourceFile:1942)
at axb.a(SourceFile:210)
at axu.a(SourceFile:350)
at axb.a(SourceFile:350)
at axu.k(SourceFile:413)
at axu.p(SourceFile:390)
at ave.s(SourceFile:1498)
at ave.av(SourceFile:889)
at ave.a(SourceFile:325)
at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop. (NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup. (MultithreadEventExecutorGroup.java:64)
. 17 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl. (PipeImpl.java:170)
at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
at java.nio.channels.Pipe.open(Pipe.java:155)
at sun.nio.ch.WindowsSelectorImpl. (WindowsSelectorImpl.java:127)
at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
. 20 more
Caused by: java.net.ConnectException: Connection timed out: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:457)
at sun.nio.ch.Net.connect(Net.java:449)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:647)
at java.nio.channels.SocketChannel.open(SocketChannel.java:189)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:130)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
. 28 more
Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 2x Intel(R) Pentium(R) CPU G620T @ 2.20GHz
I have tried many methods, but failed. Below lists the methods I tried to fix my MC in chronological order:
#Reinstalled Minecraft (2 times)
#Uninstalled McAffe and rebooted (I had to install it again)
#Updated Java to the latest version and reinstalled it (My launcher is not on java)
#Shut down my computer
Failed to Connect to the Server
Playing one of my Singleplayer worlds would crash and say the same crash log like the one above.
If you find any suggestion, please comment. And if it works, thank you so much!
(Here are is image of trying to join a Multiplayer world)
(This thread will be edited if the issue/exception is resolved, or if there were mistakes to viewers, or I will update crash screen and detail in the future)
failed to create a child event loop/failed to open a new selector/Too many open files
I am getting errors like «failed to create a child event loop/failed to open a new selector/Too many open files» when there are 30 or more concurrent requests. How to solve the above errors? Am I doing anything wrong? I am using Spring boot and Java cassandra driver. Below is the connection file:
Below is the ConnectionBean file which I used in Connection file:
Below is the class from where ConnectionBean variables are initialized :
And finally, below is the class through which I am querying cassandra data:
1 Answer 1
If getConnection() is being invoked for every request, you are creating a new Cluster instance each time.
This is discouraged because one connection is created between your client and a C* node for each Cluster instance, and for each Session a connection pool of at least one connection is created for each C* node.
If you are not closing your Cluster instances after a request completes, these connections will remain open. After a number of requests, you’ll have so many connections open that you will run out of file descriptors in your OS.
To resolve this issue, create only one Cluster and Session instance and reuse it between requests. This strategy is outlined in 4 simple rules when using the DataStax drivers for Cassandra:
Крашится майнкрафт версии 1.7.2 и выше. Краш репорт ниже.
Description: Updating screen events
java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:68)
at io.netty.channel.MultithreadEventLoopGroup.(MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:52)
at re.a(SourceFile:44)
at re.b(SourceFile:41)
at ur.c(SourceFile:10)
at rd.a(SourceFile:121)
at bss.a(SourceFile:1923)
at bxf.i(SourceFile:172)
at bxg.a(SourceFile:224)
at bvi.p(SourceFile:309)
at bxf.k(SourceFile:82)
at bxe.p(SourceFile:382)
at bss.r(SourceFile:1480)
at bss.at(SourceFile:880)
at bss.a(SourceFile:317)
at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:64)
. 17 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.(PipeImpl.java:170)
at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
at java.nio.channels.Pipe.open(Pipe.java:155)
at sun.nio.ch.WindowsSelectorImpl.(WindowsSelectorImpl.java:127)
at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
. 20 more
Caused by: java.io.IOException: Удаленный хост принудительно разорвал существующее подключение
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:197)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:139)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
. 28 more
Time: 28.01.17 19:48
Description: Exception in server tick loop
java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:68)
at io.netty.channel.MultithreadEventLoopGroup.(MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:52)
at net.minecraft.server.v1_8_R3.ServerConnection$1.a(ServerConnection.java:35)
at net.minecraft.server.v1_8_R3.ServerConnection$1.init(ServerConnection.java:39)
at net.minecraft.server.v1_8_R3.LazyInitVar.c(SourceFile:10)
at net.minecraft.server.v1_8_R3.ServerConnection.a(ServerConnection.java:102)
at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:187)
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525)
at java.lang.Thread.run(Unknown Source)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:64)
. 10 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)
at java.nio.channels.Pipe.open(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.(Unknown Source)
at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
. 13 more
Caused by: java.net.SocketException: Unrecognized Windows Sockets error: 10106: socket
at sun.nio.ch.Net.socket0(Native Method)
at sun.nio.ch.Net.serverSocket(Unknown Source)
at sun.nio.ch.ServerSocketChannelImpl.(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openServerSocketChannel(Unknown Source)
at java.nio.channels.ServerSocketChannel.open(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(Unknown Source)
. 22 more
WARNING: coremods are present:
Contact their authors BEFORE contacting forge
Time: 4/8/17 7:30 PM
Description: Updating screen events
Майнкрафт крашается! Что делать? Только версии, больше 1.6.4!
Time: 10.02.16 18:50
Description: Updating screen events
java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:68)
at io.netty.channel.MultithreadEventLoopGroup.(MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:52)
at ma$1.a(SourceFile:61)
at ma$1.b(SourceFile:58)
at oj.c(SourceFile:10)
at ma.a(SourceFile:138)
at bcd.a(SourceFile:2129)
at bhl.e(SourceFile:227)
at bhl.a(SourceFile:182)
at bhl.a(SourceFile:148)
at bdj.b(SourceFile:41)
at bhk.a(SourceFile:118)
at bez.k(SourceFile:404)
at bhk.k(SourceFile:50)
at bez.p(SourceFile:381)
at bcd.t(SourceFile:1569)
at bcd.av(SourceFile:955)
at bcd.a(SourceFile:392)
at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:64)
. 20 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)
at java.nio.channels.Pipe.open(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.(Unknown Source)
at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
. 23 more
Caused by: java.net.ConnectException: Connection timed out: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
at java.nio.channels.SocketChannel.open(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(Unknown Source)
. 32 more