# Logstash outout to Elastic search
**URL:** https://discuss.elastic.co/t/logstash-outout-to-elastic-search/113472
**Category:** Logstash
**Created:** [December 28, 2017, 4:06pm UTC](https://discuss.elastic.co/t/logstash-outout-to-elastic-search/113472 "2017-12-28T16:06:50Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@SJN8](https://discuss.elastic.co/u/SJN8)
#### Post date: [December 28, 2017, 4:06pm UTC](https://discuss.elastic.co/t/logstash-outout-to-elastic-search/113472/1 "2017-12-28T16:06:51Z")
Hi All,
I am trying to send logstash output to Elastic Search Cluster ,
below the i am defining
output {
```
elasticsearch {
hosts => ["node1:9200 , node2:9200 , node3:9200"]
index => "kafka"
}
}
```
but getting below exception while starting logstash ,
[2017-12-28T17:01:56,915][ERROR][logstash.agent] Failed to execute action {:action=\>LogStash::PipelineAction::Create/pipeline\_id:main, :exception=\>"Java::JavaNet::URISyntaxException", :message=\>"Illegal character in opaque part at index 29: node1:9200 , node2:9200 , node3:9200", :backtrace=\>["java.net.URI$Parser.fail(java/net/URI.java:2848)", "java.net.URI$Parser.checkChars(java/net/URI.java:3021)", "java.net.URI$Parser.parse(java/net/URI.java:3058)", "java.net.URI.(java/net/URI.java:588)", "java.lang.reflect.Constructor.newInstance(java/lang/reflect/Constructor.java:423)", "org.jruby.javasupport.JavaConstructor.newInstanceDirect(org/jruby/javasupport/JavaConstructor.java:278)", "org.jruby.RubyClass.newInstance(org/jruby/RubyClass.java:1001)", "org.jruby.RubyClass$INVOKER$i$newInstance.call(org/jruby/RubyClass$INVOKER$i$newInstance.gen)", "RUBY.initialize(/usr/share/logstash/logstash-core/lib/logstash/util/safe\_uri.rb:22)", "org.jruby.RubyClass.newInstance(org/jruby/RubyClass.java:1001)", "org.jruby.RubyClass$INVOKER$i$newInstance.call(org/jruby/RubyClass$INVOKER$i$newInstance.gen)", "RUBY.validate\_value(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:516)", "RUBY.block in process\_parameter\_value(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:331)", "org.jruby.RubyArray.collect(org/jruby/RubyArray.java:2472)", "org.jruby.RubyArray.map(org/jruby/RubyArray.java:2486)", "org.jruby.RubyArray$INVOKER$i$0$0$map19.call(org/jruby/RubyArray$INVOKER$i$0$0$map19.gen)", "RUBY.process\_parameter\_value(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:331)", "usr.share.logstash.logstash\_minus\_core.lib.logstash.config.mixin.invokeOther6:process\_parameter\_value(usr/share/logstash/logstash\_minus\_core/lib/logstash/config//usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:354)", "usr.share.logstash.logstash\_minus\_core.lib.logstash.config.mixin.block in validate\_check\_parameter\_values(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:354)", "org.jruby.RubyArray.each(org/jruby/RubyArray.java:1734)", "org.jruby.RubyArray$INVOKER$i$0$0$each.call(org/jruby/RubyArray$INVOKER$i$0$0$each.gen)", "RUBY.block in validate\_check\_parameter\_values(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:348)", "org.jruby.RubyHash$12.visit(org/jruby/RubyHash.java:1362)", "org.jruby.RubyHash$12.visit(org/jruby/RubyHash.java:1359)", "org.jruby.RubyHash.visitLimited(org/jruby/RubyHash.java:662)", "org.jruby.RubyHash.visitAll(org/jruby/RubyHash.java:647)", "org.jruby.RubyHash.iteratorVisitAll(org/jruby/RubyHash.java:1319)", "org.jruby.RubyHash.each\_pairCommon(org/jruby/RubyHash.java:1354)", "org.jruby.RubyHash.each(org/jruby/RubyHash.java:1343)", "org.jruby.RubyHash$INVOKER$i$0$0$each.call(org/jruby/RubyHash$INVOKER$i$0$0$each.gen)", "RUBY.validate\_check\_parameter\_values(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:347)", "RUBY.validate(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:237)", "RUBY.config\_init(/usr/share/logstash/logstash-core/lib/logstash/config/mixin.rb:88)", "RUBY.initialize(/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:63)", "org.jruby.RubyClass.newInstance(org/jruby/RubyClass.java:1001)", "org.jruby.RubyClass$INVOKER$i$newInstance.call(org/jruby/RubyClass$INVOKER$i$newInstance.gen)", "RUBY.initialize(/usr/share/logstash/logstash-core/lib/logstash/output\_delegator\_strategies/shared.rb:3)", "org.jruby.RubyClass.newInstance(org/jruby/RubyClass.java:1022)", "org.jruby.RubyClass$INVOKER$i$newInstance.call(org/jruby/RubyClass$INVOKER$i$newInstance.gen)", "RUBY.initialize(/usr/share/logstash/logstash-core/lib/logstash/output\_delegator.rb:25)", "org.jruby.RubyClass.newInstance(org/jruby/RubyClass.java:1022)", "org.jruby.RubyClass$INVOKER$i$newInstance.call(org/jruby/RubyClass$INVOKER$i$newInstance.gen)", "RUBY.plugin(/usr/share/logstash/logstash-core/lib/logstash/plugins/plugin\_factory.rb:86)", "RUBY.plugin(/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:114)", "RUBY.((eval):39)", "org.jruby.RubyKernel.evalCommon(org/jruby/RubyKernel.java:1027)", "org.jruby.RubyKernel.eval(org/jruby/RubyKernel.java:994)", "org.jruby.RubyKernel$INVOKER$s$0$3$eval19.call(org/jruby/RubyKernel$INVOKER$s$0$3$eval19.gen)", "RUBY.initialize(/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:86)", "RUBY.initialize(/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:171)", "org.jruby.RubyClass.newInstance(org/jruby/RubyClass.java:1022)", "org.jruby.RubyClass$INVOKER$i$newInstance.call(org/jruby/RubyClass$INVOKER$i$newInstance.gen)", "RUBY.execute(/usr/share/logstash/logstash-core/lib/logstash/pipeline\_action/create.rb:40)", "RUBY.block in converge\_state(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:335)", "RUBY.with\_pipelines(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141)", "RUBY.block in converge\_state(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:332)", "org.jruby.RubyArray.each(org/jruby/RubyArray.java:1734)", "org.jruby.RubyArray$INVOKER$i$0$0$each.call(org/jruby/RubyArray$INVOKER$i$0$0$each.gen)", "RUBY.converge\_state(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:319)", "RUBY.block in converge\_state\_and\_update(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:166)", "RUBY.with\_pipelines(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141)", "RUBY.converge\_state\_and\_update(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:164)", "RUBY.execute(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:90)", "RUBY.block in execute(/usr/share/logstash/logstash-core/lib/logstash/runner.rb:343)", "org.jruby.RubyProc.call(org/jruby/RubyProc.java:289)", "org.jruby.RubyProc.call19(org/jruby/RubyProc.java:273)", "org.jruby.RubyProc$INVOKER$i$0$0$call19.call(org/jruby/RubyProc$INVOKER$i$0$0$call19.gen)", "RUBY.block in initialize(/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:24)", "org.jruby.RubyProc.call(org/jruby/RubyProc.java:289)", "org.jruby.RubyProc.call(org/jruby/RubyProc.java:246)", "java.lang.Thread.run(java/lang/Thread.java:748)"]}
[2017-12-28T17:01:56,918][ERROR][logstash.agent] An exception happened when con
please help in resolving the same .
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [December 31, 2017, 10:04am UTC](https://discuss.elastic.co/t/logstash-outout-to-elastic-search/113472/2 "2017-12-31T10:04:55Z")
If you look at [the documentation](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-hosts), `hosts` takes a list of host strings. What you have provided is a list containing a single string with hosts and port combinations separated by commas, which is not a valid format.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 28, 2018, 10:05am UTC](https://discuss.elastic.co/t/logstash-outout-to-elastic-search/113472/3 "2018-01-28T10:05:12Z")
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