# Exception in pipelineworker, the pipeline stopped processing new events, please check your filter configuration and restart Logstash. org.jruby.exceptions.ArgumentError: (ArgumentError) key cannot be blank

**URL:** https://discuss.elastic.co/t/exception-in-pipelineworker-the-pipeline-stopped-processing-new-events-please-check-your-filter-configuration-and-restart-logstash-org-jruby-exceptions-argumenterror-argumenterror-key-cannot-be-blank/258670
**Category:** Logstash
**Created:** [December 15, 2020, 4:38am UTC](https://discuss.elastic.co/t/exception-in-pipelineworker-the-pipeline-stopped-processing-new-events-please-check-your-filter-configuration-and-restart-logstash-org-jruby-exceptions-argumenterror-argumenterror-key-cannot-be-blank/258670 "2020-12-15T04:38:56Z")
**Posts on this page:** 4
**Page:** 1

<div class="post-metadata">

### Author: ![bhavanikallam](https://avatars.discourse-cdn.com/v4/letter/b/258eb7/32.png) [@bhavanikallam](https://discuss.elastic.co/u/bhavanikallam)
#### Post date: [December 15, 2020, 4:38am UTC](https://discuss.elastic.co/t/exception-in-pipelineworker-the-pipeline-stopped-processing-new-events-please-check-your-filter-configuration-and-restart-logstash-org-jruby-exceptions-argumenterror-argumenterror-key-cannot-be-blank/258670/1 "2020-12-15T04:38:56Z")

</div>

![Screenshot (2448)](https://us1.discourse-cdn.com/elastic/original/3X/5/1/51b641dcb23f4cd8e2e18bc73940a4f4f89f48af.png)

Plz kindly help

---

<div class="post-metadata">

### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [December 15, 2020, 4:39am UTC](https://discuss.elastic.co/t/exception-in-pipelineworker-the-pipeline-stopped-processing-new-events-please-check-your-filter-configuration-and-restart-logstash-org-jruby-exceptions-argumenterror-argumenterror-key-cannot-be-blank/258670/2 "2020-12-15T04:39:08Z")

</div>

Welcome to our community! 😃

Please don't post pictures of text, they are difficult to read, impossible to search and replicate (if it's code), and some people may not be even able to see them 🙂

---

<div class="post-metadata">

### Author: ![bhavanikallam](https://avatars.discourse-cdn.com/v4/letter/b/258eb7/32.png) [@bhavanikallam](https://discuss.elastic.co/u/bhavanikallam)
#### Post date: [December 15, 2020, 4:42am UTC](https://discuss.elastic.co/t/exception-in-pipelineworker-the-pipeline-stopped-processing-new-events-please-check-your-filter-configuration-and-restart-logstash-org-jruby-exceptions-argumenterror-argumenterror-key-cannot-be-blank/258670/3 "2020-12-15T04:42:17Z")

</div>

Okay. Sure

My logstash is getting stopped by here. can someone plz help why this error is coming

warning: thread "[connection]\>worker2" terminated with exception (report\_on\_exception is true):  
java.lang.IllegalStateException: org.jruby.exceptions.ArgumentError: (ArgumentError) key cannot be blank  
at org.logstash.execution.WorkerLoop.run(org/logstash/execution/WorkerLoop.java:85)  
at java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:498)  
at org.jruby.javasupport.JavaMethod.invokeDirectWithExceptionHandling(org/jruby/javasupport/JavaMethod.java:440)  
at org.jruby.javasupport.JavaMethod.invokeDirect(org/jruby/javasupport/JavaMethod.java:304)  
at RUBY.start\_workers(/opt/turquoise/collector/logstash-core/lib/logstash/java\_pipeline.rb:239)  
at org.jruby.RubyProc.call(org/jruby/RubyProc.java:295)  
at org.jruby.RubyProc.call(org/jruby/RubyProc.java:274)  
at org.jruby.RubyProc.call(org/jruby/RubyProc.java:270)  
at java.lang.Thread.run(java/lang/Thread.java:748)  
Caused by: org.jruby.exceptions.ArgumentError: (ArgumentError) key cannot be blank  
at opt.turquoise.collector.vendor.bundle.jruby.$2\_dot\_5\_dot\_0.gems.dalli\_minus\_2\_dot\_7\_dot\_10.lib.dalli.client.validate\_key(/opt/turquoise/collector/vendor/bundle/jruby/2.5.0/gems/dalli-2.7.10/lib/dalli/client.rb:378)

---

<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: [January 12, 2021, 4:42am UTC](https://discuss.elastic.co/t/exception-in-pipelineworker-the-pipeline-stopped-processing-new-events-please-check-your-filter-configuration-and-restart-logstash-org-jruby-exceptions-argumenterror-argumenterror-key-cannot-be-blank/258670/4 "2021-01-12T04:42:20Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.