Logstash: A plugin had an unrecoverable error. Will restart this plugin

When I start my logstash config file it show like this

[2020-03-26T21:24:52,293][INFO ][logstash.javapipeline ][main] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>4, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50, "pipeline.max_inflight"=>500, "pipeline.sources"=>["/etc/logstash/conf.d/logsample.conf"], :thread=>"#<Thread:0x9b6e1d run>"}
[2020-03-26T21:24:53,705][INFO ][logstash.inputs.beats ][main] Beats inputs: Starting input listener {:address=>"0.0.0.0:5044"}
[2020-03-26T21:24:53,723][INFO ][logstash.javapipeline ][main] Pipeline started {"pipeline.id"=>"main"}
[2020-03-26T21:24:53,828][INFO ][logstash.agent ] Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>}
[2020-03-26T21:24:53,866][INFO ][org.logstash.beats.Server][main] Starting server on port: 5044
[2020-03-26T21:24:54,231][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9601}
[2020-03-26T21:25:00,388][ERROR][logstash.javapipeline ][main] A plugin had an unrecoverable error. Will restart this plugin.
Pipeline_id:main
Plugin: <LogStash::Inputs::Beats port=>5044, id=>"adae4b1c0546afc7546b2b6f4f87a509665cacafac15ab463143e33a9c62c9eb", enable_metric=>true, codec=><LogStash::Codecs::Plain id=>"plain_5841d340-9c84-460c-a045-a6fbdedff159", 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_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=>4>
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:433)
sun.nio.ch.Net.bind(sun/nio/ch/Net.java:425)
sun.nio.ch.ServerSocketChannelImpl.bind(sun/nio/ch/ServerSocketChannelImpl.java:220)
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:748)
[2020-03-26T21:25:01,405][INFO ][org.logstash.beats.Server][main] Starting server on port: 5044

can anyone help in this

hi @Ekta, looking at Error: Address already in use , can you check if you have another instance of logstash already running?
You can check with something like ps axf | grep logstash

Hi @MarianaD ,

I already checked It shows this output

root@servername:~# ps -aux | grep logstash
logstash 23309 72.3 9.1 4665420 743576 ? SNsl 07:22 1:36 /usr/bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djruby.compile.invokedynamic=true -Djruby.jit.threshold=0 -Djruby.regexp.interruptible=true -XX:+HeapDumpOnOutOfMemoryError -Djava.security.egd=file:/dev/urandom -Dlog4j2.isThreadContextMapInheritable=true -cp /usr/share/logstash/logstash-core/lib/jars/animal-sniffer-annotations-1.14.jar:/usr/share/logstash/logstash-core/lib/jars/commons-codec-1.13.jar:/usr/share/logstash/logstash-core/lib/jars/commons-compiler-3.1.0.jar:/usr/share/logstash/logstash-core/lib/jars/error_prone_annotations-2.0.18.jar:/usr/share/logstash/logstash-core/lib/jars/google-java-format-1.1.jar:/usr/share/logstash/logstash-core/lib/jars/gradle-license-report-0.7.1.jar:/usr/share/logstash/logstash-core/lib/jars/guava-22.0.jar:/usr/share/logstash/logstash-core/lib/jars/j2objc-annotations-1.1.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-annotations-2.9.10.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-core-2.9.10.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-databind-2.9.10.1.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-dataformat-cbor-2.9.10.jar:/usr/share/logstash/logstash-core/lib/jars/janino-3.1.0.jar:/usr/share/logstash/logstash-core/lib/jars/javassist-3.26.0-GA.jar:/usr/share/logstash/logstash-core/lib/jars/jruby-complete-9.2.9.0.jar:/usr/share/logstash/logstash-core/lib/jars/jsr305-1.3.9.jar:/usr/share/logstash/logstash-core/lib/jars/log4j-api-2.12.1.jar:/usr/share/logstash/logstash-core/lib/jars/log4j-core-2.12.1.jar:/usr/share/logstash/logstash-core/lib/jars/log4j-slf4j-impl-2.12.1.jar:/usr/share/logstash/logstash-core/lib/jars/logstash-core.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.core.commands-3.6.0.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.core.contenttype-3.4.100.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.core.expressions-3.4.300.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.core.filesystem-1.3.100.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.core.jobs-3.5.100.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.core.resources-3.7.100.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.core.runtime-3.7.0.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.equinox.app-1.3.100.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.equinox.common-3.6.0.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.equinox.preferences-3.4.1.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.equinox.registry-3.5.101.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.jdt.core-3.10.0.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.osgi-3.7.1.jar:/usr/share/logstash/logstash-core/lib/jars/org.eclipse.text-3.5.101.jar:/usr/share/logstash/logstash-core/lib/jars/reflections-0.9.11.jar:/usr/share/logstash/logstash-core/lib/jars/slf4j-api-1.7.25.jar org.logstash.Logstash --path.settings /etc/logstash
root 23483 0.0 0.0 13136 1104 pts/1 S+ 07:25 0:00 grep --color=auto logstash

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