# NetFow plugin

**URL:** <https://discuss.elastic.co/t/netfow-plugin/191587>\
**Category:** Logstash\
**Created:** [July 22, 2019, 6:49am UTC](https://discuss.elastic.co/t/netfow-plugin/191587 "2019-07-22T06:49:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tariq\_Emad](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tariq_emad/32/46015_2.png) [@Tariq\_Emad](https://discuss.elastic.co/u/Tariq_Emad)\
**Post date:** [July 22, 2019, 6:49am UTC](https://discuss.elastic.co/t/netfow-plugin/191587/1 "2019-07-22T06:49:28Z")

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Hi all,

I looking to work on ELK ,, i already installed on windows server 2016 .. when i trying to install Netflow plugin i get error

> PS C:\ELK\logstash-7.2.0\logstash-7.2.0\bin\> ./logstash --modules netflow --setup  
> 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 org.jruby.runtime.encoding.EncodingService (file:/C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/jars/jruby-complete-9.2.7.0.jar) to field java.io.Console.cs  
> WARNING: Please consider reporting this to the maintainers of org.jruby.runtime.encoding.EncodingService  
> 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  
> Thread.exclusive is deprecated, use Thread::Mutex  
> Sending Logstash logs to C:/ELK/logstash-7.2.0/logstash-7.2.0/logs which is now configured via log4j2.properties  
> [2019-07-21T22:30:35,256][WARN][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified  
> [2019-07-21T22:30:35,287][INFO][logstash.runner] Starting Logstash {"logstash.version"=\>"7.2.0"}  
> [2019-07-21T22:30:36,770][INFO][logstash.config.modulescommon] Setting up the netflow module  
> [2019-07-21T22:30:39,631][ERROR][logstash.modules.kibanaclient] Error when executing Kibana client request {:error=\>#\<Manticore::UnknownException: Unsupported or unrecognized SSL message\>}  
> [2019-07-21T22:30:39,902][ERROR][logstash.modules.kibanaclient] Error when executing Kibana client request {:error=\>#\<Manticore::UnknownException: Unsupported or unrecognized SSL message\>}  
> [2019-07-21T22:30:40,131][ERROR][logstash.config.sourceloader] Could not fetch all the sources {:exception=\>LogStash::ConfigLoadingError, :message=\>"Failed to import module configurations to Elasticsearch and/or Kibana. Module: netflow has Elasticsearch hosts: ["localho  
> st:9200"] and Kibana hosts: ["localhost:5601"]", :backtrace=\>["C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/config/modules\_common.rb:108:in `block in pipeline_configs'", "org/jruby/RubyArray.java:1792:in `each'", "C:/ELK/logstash-7.2.0/logstash-7.2.  
> 0/logstash-core/lib/logstash/config/modules\_common.rb:54:in `pipeline_configs'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/config/source/modules.rb:14:in `pipeline\_configs'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/config/s  
> ource\_loader.rb:61:in `block in fetch'", "org/jruby/RubyArray.java:2572:in `collect'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/config/source\_loader.rb:60:in `fetch'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/agent.rb:148:i  
> n `converge_state_and_update'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/agent.rb:96:in `execute'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/runner.rb:367:in `block in execute'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/vendor  
> /bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/task.rb:24:in `block in initialize'"]}  
> [2019-07-21T22:30:40,147][ERROR][logstash.agent] An exception happened when converging configuration {:exception=\>RuntimeError, :message=\>"Could not fetch the configuration, message: Failed to import module configurations to Elasticsearch and/or Kibana. Module  
> : netflow has Elasticsearch hosts: ["localhost:9200"] and Kibana hosts: ["localhost:5601"]", :backtrace=\>["C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/agent.rb:155:in `converge\_state\_and\_update'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-cor  
> e/lib/logstash/agent.rb:96:in `execute'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/logstash-core/lib/logstash/runner.rb:367:in `block in execute'", "C:/ELK/logstash-7.2.0/logstash-7.2.0/vendor/bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/task.rb:24:in `block in initialize'"  
> ]}  
> [2019-07-21T22:30:40,958][INFO][logstash.agent] Successfully started Logstash API endpoint {:port=\>9600}  
> [2019-07-21T22:30:45,608][INFO][logstash.runner] Logstash shut down.  
> PS C:\ELK\logstash-7.2.0\logstash-7.2.0\bin\>

Can any one advice me plz .. Thanks in advance

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 19, 2019, 6:49am UTC](https://discuss.elastic.co/t/netfow-plugin/191587/2 "2019-08-19T06:49:42Z")

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