https://community.cloudera.com/t5/Support-Questions/Logstash-java-lang-IllegalStateException/m-p/187293#M149395 <BR />0<A href="https://stackoverflow.com/questions/51190051/logstash-illegalstateexception#">favorite</A> <P>I am trying to execute this command: <CODE>aymenstien@aymenstien-VPCEH2Q1E:/usr/share/logstash$ ./bin/logstash -f /home/aymenstien/Bureau/fb.conf</CODE></P><P><CODE></CODE> here is the config file:</P><P>input { file { path =&gt; "/home/aymenstien/Bureau/mydoc/*" start_position =&gt; beginning codec =&gt; json sincedb_path =&gt; "/home/aymenstien/Bureau/mydoc/postj1.sincedb" } } output { stdout { codec =&gt; rubydebug } elasticsearch { hosts =&gt; "http://localhost:9200" index =&gt; "fbpost" document_type =&gt; "post" timeout =&gt; 30 workers =&gt; 1 } }</P><P>and I am getting the result of execution below:</P><P>aymenstien@aymenstien-VPCEH2Q1E:/usr/share/logstash$ ./bin/logstash -f /home/aymenstien/Bureau/fb.conf 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 [FATAL] 2018-07-05 12:47:56.496 [main] runner - An unexpected error occurred! {:error=&gt;#&lt;ArgumentError: Path "/usr/share/logstash/data" must be a writable directory. It is not writable.&gt;, :backtrace=&gt;["/usr/share/logstash/logstash-core/lib/logstash/settings.rb:448:in `validate'", "/usr/share/logstash/logstash-core/lib/logstash/settings.rb:230:in `validate_value'", "/usr/share/logstash/logstash-core/lib/logstash/settings.rb:141:in `block in validate_all'", "org/jruby/RubyHash.java:1343:in `each'", "/usr/share/logstash/logstash-core/lib/logstash/settings.rb:140:in `validate_all'", "/usr/share/logstash/logstash-core/lib/logstash/runner.rb:279:in `execute'", "/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/clamp-0.6.5/lib/clamp/command.rb:67:in `run'", "/usr/share/logstash/logstash-core/lib/logstash/runner.rb:238:in `run'", "/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/clamp-0.6.5/lib/clamp/command.rb:132:in `run'", "/usr/share/logstash/lib/bootstrap/environment.rb:73:in `&lt;main&gt;'"]} [ERROR] 2018-07-05 12:47:56.554 [main] Logstash - java.lang.IllegalStateException: Logstash stopped processing because of an error: (SystemExit) exit</P><P>Can anyone help me? </P> Thu, 05 Jul 2018 18:28:31 GMT krol 2018-07-05T18:28:31Z