[BUG] Fallback Server not working.

[M2HF]

The fallback server is not working. I'm on the latest version. When closing a server, I'm not being redirected to the lobby, I simply get disconnected. The console throws this error:

[/iphere|Augustus15] <-> DownstreamBridge <-> [world] - could not decode packet! io.netty.handler.codec.DecoderException: java.lang.UnsupportedOperationException: Packet must implement read method

[electronicboy]

run waterfall with -Dwaterfall.packet-decode-logging=true

[M2HF]

In my start script? Only the Proxy server?

[electronicboy]

Yes

[M2HF]

Thanks for your quick response btw, fastest I've ever seen. I did as you said, and I still get disconnected though.

[electronicboy]

It's a debug flag, the entire intent is that it actually hopefully logs the full info of what happened and then we can actually see what broke.

[M2HF]

Oh, sorry. Been up for way too long. Here's the error:

[/62.226.73.96:54133|Augustus15] <-> DownstreamBridge <-> [world] - A decoder exception has been thrown: io.netty.handler.codec.DecoderException: java.lang.UnsupportedOperationException: Packet must implement read method at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:98) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at java.lang.Thread.run(Thread.java:833) [?:?] Caused by: java.lang.UnsupportedOperationException: Packet must implement read method at net.md_5.bungee.protocol.DefinedPacket.read(DefinedPacket.java:440) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at net.md_5.bungee.protocol.DefinedPacket.read(DefinedPacket.java:450) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at net.md_5.bungee.protocol.MinecraftDecoder.decode(MinecraftDecoder.java:62) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at net.md_5.bungee.protocol.MinecraftDecoder.decode(MinecraftDecoder.java:13) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88) ~[waterfall-1.20-549.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:9b4b8cb:549] ... 24 more [21:11:52 INFO]: [Augustus15] disconnected with: The server you were previously on went down, you have been connected to a fallback server [21:11:52 INFO]: [/62.226.73.96:54133|Augustus15] -> UpstreamBridge has disconnected

[electronicboy]

Well, that is less insightful, forgot java didn't log that itself; only guess would be to reproduce without plugins at this point

[electronicboy]

Only because I'm curious as I've seen a few people having this one, this build should dump some info (with the debug flag) Waterfall.jar.zip

[M2HF]

Now I got this error:

[21:51:57 WARN]: [/IP:51606|Augustus15] <-> DownstreamBridge <-> [ww2_normandy] - A decoder exception has been thrown: net.md_5.bungee.protocol.FastDecoderException: Error decoding packet class Kick with contents: +-------------------------------------------------+ | 0 1 2 3 4 5 6 7 8 9 a b c d e f | +--------+-------------------------------------------------+----------------+ |00000000| 1b 1f 7b 22 74 65 78 74 22 3a 22 53 65 72 76 65 |..{"text":"Serve| |00000010| 72 20 69 73 20 72 65 73 74 61 72 74 69 6e 67 22 |r is restarting"| |00000020| 7d |} | +--------+-------------------------------------------------+----------------+ Caused by: java.lang.UnsupportedOperationException: Packet must implement read method at net.md_5.bungee.protocol.DefinedPacket.read(DefinedPacket.java:440) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at net.md_5.bungee.protocol.DefinedPacket.read(DefinedPacket.java:450) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at net.md_5.bungee.protocol.MinecraftDecoder.decode(MinecraftDecoder.java:62) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at net.md_5.bungee.protocol.MinecraftDecoder.decode(MinecraftDecoder.java:13) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[Waterfall.jar:git:Waterfall-Bootstrap:1.20-R0.2-SNAPSHOT:c89ee9e:unknown] at java.lang.Thread.run(Thread.java:833) [?:?] [21:51:57 INFO]: [Augustus15] disconnected with: The server you were previously on went down, you have been connected to a fallback server [21:51:57 INFO]: [/62.226.73.96:51606|Augustus15] -> UpstreamBridge has disconnected

[M2HF]

I just tried the newest build, now the "fallback_server: lobby" option was removed from my config.yml and I'm still not being redirected to my lobby.

[electronicboy]

fallback_server has literally not been a thing inside of waterfall (or bungee) for years, it should use the priorities list to determine where to send you in the correct conditions

[M2HF]

Oh? Strange. Lobby is set as priority though. Still no redirecting.

[electronicboy]

Okay, I misremembered, this is intended behavior, if you want a kick to send the player elsewhere, you'd need a plugin