logstash修改配置后无法重新启动。

version 6.4.0.
修改配置后、把5044跟9600的进程kill掉
重新执行新的配置命令启动报错
下面是报错日志：
Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.headius.backport9.modules.Modules (file:/usr/share/logstash/logstash-core/lib/jars/jruby-complete-9.2.7.0.jar) to field java.io.FileDescriptor.fd
WARNING: Please consider reporting this to the maintainers of com.headius.backport9.modules.Modules
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
WARNING: Could not find logstash.yml which is typically located in $LS_HOME/config or /etc/logstash. You can specify the path using --path.settings. Continuing using the defaults
Could not find log4j2 configuration at path /usr/share/logstash/config/log4j2.properties. Using default config which logs errors to the console
[WARN ] 2019-11-06 06:34:22.582 [LogStash::Runner] multilocal - Ignoring the 'pipelines.yml' file because modules or command line options are specified
[INFO ] 2019-11-06 06:34:22.595 [LogStash::Runner] runner - Starting Logstash {"logstash.version"=>"6.8.4"}
[INFO ] 2019-11-06 06:34:28.640 [Converge PipelineAction::Create<main>] pipeline - Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>1, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50}
[INFO ] 2019-11-06 06:34:29.217 [[main]-pipeline-manager] elasticsearch - Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://localhost:9200/]}}
[WARN ] 2019-11-06 06:34:29.510 [[main]-pipeline-manager] elasticsearch - Restored connection to ES instance {:url=>"http://localhost:9200/&quot;}
[INFO ] 2019-11-06 06:34:29.726 [[main]-pipeline-manager] elasticsearch - ES Output version determined {:es_version=>6}
[WARN ] 2019-11-06 06:34:29.729 [[main]-pipeline-manager] elasticsearch - Detected a 6.x and above cluster: the `type` event field won't be used to determine the document _type {:es_version=>6}
[INFO ] 2019-11-06 06:34:29.754 [[main]-pipeline-manager] elasticsearch - New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//localhost"]}
[INFO ] 2019-11-06 06:34:29.783 [[main]-pipeline-manager] elasticsearch - Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://localhost:9200/]}}
[WARN ] 2019-11-06 06:34:29.793 [[main]-pipeline-manager] elasticsearch - Restored connection to ES instance {:url=>"http://localhost:9200/&quot;}
[INFO ] 2019-11-06 06:34:29.796 [[main]-pipeline-manager] elasticsearch - ES Output version determined {:es_version=>6}
[WARN ] 2019-11-06 06:34:29.797 [[main]-pipeline-manager] elasticsearch - Detected a 6.x and above cluster: the `type` event field won't be used to determine the document _type {:es_version=>6}
[INFO ] 2019-11-06 06:34:29.807 [[main]-pipeline-manager] elasticsearch - New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//localhost"]}
[INFO ] 2019-11-06 06:34:30.873 [[main]-pipeline-manager] beats - Beats inputs: Starting input listener {:address=>"0.0.0.0:5044"}
[INFO ] 2019-11-06 06:34:30.888 [Converge PipelineAction::Create<main>] pipeline - Pipeline started successfully {:pipeline_id=>"main", :thread=>"#<Thread:0x510a74a5 run>"}
[INFO ] 2019-11-06 06:34:30.940 [Ruby-0-Thread-1: /usr/share/logstash/lib/bootstrap/environment.rb:6] agent - Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[INFO ] 2019-11-06 06:34:31.023 [[main]<beats] Server - Starting server on port: 5044
[INFO ] 2019-11-06 06:34:31.274 [Api Webserver] agent - Successfully started Logstash API endpoint {:port=>9601}
[ERROR] 2019-11-06 06:34:37.425 [[main]<beats] pipeline - A plugin had an unrecoverable error. Will restart this plugin.
  Pipeline_id:main
  Plugin: <LogStash::Inputs::Beats host=>"0.0.0.0", port=>5044, id=>"bc1574a5ccf77eaee40edb9f60eb992427c865c146d62340452aa35c5d40a74c", enable_metric=>true, codec=><LogStash::Codecs::Plain id=>"plain_e0fee27a-2d02-4151-adbe-bce42c0b3731", enable_metric=>true, charset=>"UTF-8">, ssl=>false, add_hostname=>true, 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_256_GCM_SHA384", "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384", "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384", "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384", "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256", "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256"], 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:461)
sun.nio.ch.Net.bind(sun/nio/ch/Net.java:453)
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:130)
io.netty.channel.AbstractChannel$AbstractUnsafe.bind(io/netty/channel/AbstractChannel.java:558)
io.netty.channel.DefaultChannelPipeline$HeadContext.bind(io/netty/channel/DefaultChannelPipeline.java:1358)
io.netty.channel.AbstractChannelHandlerContext.invokeBind(io/netty/channel/AbstractChannelHandlerContext.java:501)
io.netty.channel.AbstractChannelHandlerContext.bind(io/netty/channel/AbstractChannelHandlerContext.java:486)
io.netty.channel.DefaultChannelPipeline.bind(io/netty/channel/DefaultChannelPipeline.java:1019)
io.netty.channel.AbstractChannel.bind(io/netty/channel/AbstractChannel.java:254)
io.netty.bootstrap.AbstractBootstrap$2.run(io/netty/bootstrap/AbstractBootstrap.java:366)
io.netty.util.concurrent.AbstractEventExecutor.safeExecute(io/netty/util/concurrent/AbstractEventExecutor.java:163)
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(io/netty/util/concurrent/SingleThreadEventExecutor.java:404)
io.netty.channel.nio.NioEventLoop.run(io/netty/channel/nio/NioEventLoop.java:462)
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(io/netty/util/concurrent/SingleThreadEventExecutor.java:897)
io.netty.util.concurrent.FastThreadLocalRunnable.run(io/netty/util/concurrent/FastThreadLocalRunnable.java:30)
java.lang.Thread.run(java/lang/Thread.java:834)