Logstash 5044 address already in use

Elastic Stack Logstash
1

I'm running logstash docker image 7.5.2 using this configuration file:

input {
  beats {
    port => 5044
  }
}

filter {
  mutate {
    add_tag => [ "logstash_filter_applied" ]
  }
}

output {
  elasticsearch {
    hosts => "elasticsearch:9200"
  }
}

However, I'm getting this error message:

Error: Address already in use

Detailed message:

A plugin had an unrecoverable error. Will restart this plugin.
  Pipeline_id:main
  Plugin: <LogStash::Inputs::Beats port=>5044, id=>"35704cef51db219c860291f0258657f0b78b545d960a9be1a1f85a68a7b79f3f", enable_metric=>true, codec=><LogStash::Codecs::Plain id=>"plain_6d79db52-6916-4ac3-a7aa-8bc3466fcad5", enable_metric=>true, charset=>"UTF-8">, host=>"0.0.0.0", ssl=>false, add_hostname=>false, ssl_verify_mode=>"none", ssl_peer_metadata=>false, include_codec_tag=>true, ssl_handshake_timeout=>10000, tls_min_version=>1, tls_max_version=>1.2, cipher_suites=>["TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384", "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384"], client_inactivity_timeout=>60, executor_threads=>1>
  Error: Address already in use
  Exception: Java::JavaNet::BindException
  Stack: sun.nio.ch.Net.bind0(Native Method)
sun.nio.ch.Net.bind(sun/nio/ch/Net.java:455)
sun.nio.ch.Net.bind(sun/nio/ch/Net.java:447)
sun.nio.ch.ServerSocketChannelImpl.bind(sun/nio/ch/ServerSocketChannelImpl.java:227)
io.netty.channel.socket.nio.NioServerSocketChannel.doBind(io/netty/channel/socket/nio/NioServerSocketChannel.java:134)
io.netty.channel.AbstractChannel$AbstractUnsafe.bind(io/netty/channel/AbstractChannel.java:550)
io.netty.channel.DefaultChannelPipeline$HeadContext.bind(io/netty/channel/DefaultChannelPipeline.java:1334)
io.netty.channel.AbstractChannelHandlerContext.invokeBind(io/netty/channel/AbstractChannelHandlerContext.java:504)
io.netty.channel.AbstractChannelHandlerContext.bind(io/netty/channel/AbstractChannelHandlerContext.java:489)
io.netty.channel.DefaultChannelPipeline.bind(io/netty/channel/DefaultChannelPipeline.java:973)
io.netty.channel.AbstractChannel.bind(io/netty/channel/AbstractChannel.java:248)
io.netty.bootstrap.AbstractBootstrap$2.run(io/netty/bootstrap/AbstractBootstrap.java:348)
io.netty.util.concurrent.AbstractEventExecutor.safeExecute(io/netty/util/concurrent/AbstractEventExecutor.java:164)
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(io/netty/util/concurrent/SingleThreadEventExecutor.java:472)
io.netty.channel.nio.NioEventLoop.run(io/netty/channel/nio/NioEventLoop.java:500)
io.netty.util.concurrent.SingleThreadEventExecutor$4.run(io/netty/util/concurrent/SingleThreadEventExecutor.java:989)
io.netty.util.internal.ThreadExecutorMap$2.run(io/netty/util/internal/ThreadExecutorMap.java:74)
io.netty.util.concurrent.FastThreadLocalRunnable.run(io/netty/util/concurrent/FastThreadLocalRunnable.java:30)
java.lang.Thread.run(java/lang/Thread.java:834)
2

Seems like there’s an existing service using the same port.

3

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