No Implicit conversion of Nil

[elasticforme (Sachin)]

I am getting following error. but do not where in code it is getting this error from.

[ERROR] 2020-10-28 11:41:31.825 [[main]>worker7] WorkerLoop - Exception in pipelineworker, the pipeline stopped processing new events, please check your filter configuration and restart Logstash.
org.jruby.exceptions.TypeError: (TypeError) no implicit conversion of nil into Integer
        at usr.share.logstash.logstash_minus_core.lib.logstash.java_pipeline.start_workers(/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:278) ~[?:?]
warning: thread "[main]>worker7" terminated with exception (report_on_exception is true):
java.lang.IllegalStateException: org.jruby.exceptions.TypeError: (TypeError) no implicit conversion of nil into Integer
        at org.logstash.execution.WorkerLoop.run(org/logstash/execution/WorkerLoop.java:105)
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(jdk/internal/reflect/NativeMethodAccessorImpl.java:62)
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(jdk/internal/reflect/DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:564)
        at org.jruby.javasupport.JavaMethod.invokeDirectWithExceptionHandling(org/jruby/javasupport/JavaMethod.java:441)
        at org.jruby.javasupport.JavaMethod.invokeDirect(org/jruby/javasupport/JavaMethod.java:305)
        at usr.share.logstash.logstash_minus_core.lib.logstash.java_pipeline.start_workers(/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:278)
        at org.jruby.RubyProc.call(org/jruby/RubyProc.java:318)
        at java.lang.Thread.run(java/lang/Thread.java:832)
Caused by: org.jruby.exceptions.TypeError: (TypeError) no implicit conversion of nil into Integer
        at usr.share.logstash.logstash_minus_core.lib.logstash.java_pipeline.start_workers(/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:278)
[FATAL] 2020-10-28 11:41:31.990 [LogStash::Runner] runner - An unexpected error occurred! {:error=>java.lang.IllegalStateException: org.jruby.exceptions.TypeError: (TypeError) no implicit conversion of nil into Integer, :backtrace=>["org.logstash.execution.WorkerLoop.run(org/logstash/execution/WorkerLoop.java:105)", "jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)", "jdk.internal.reflect.NativeMethodAccessorImpl.invoke(jdk/internal/reflect/NativeMethodAccessorImpl.java:62)", "jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(jdk/internal/reflect/DelegatingMethodAccessorImpl.java:43)", "java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:564)", "org.jruby.javasupport.JavaMethod.invokeDirectWithExceptionHandling(org/jruby/javasupport/JavaMethod.java:441)", "org.jruby.javasupport.JavaMethod.invokeDirect(org/jruby/javasupport/JavaMethod.java:305)", "usr.share.logstash.logstash_minus_core.lib.logstash.java_pipeline.start_workers(/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:278)", "org.jruby.RubyProc.call(org/jruby/RubyProc.java:318)", "java.lang.Thread.run(java/lang/Thread.java:832)"]}
[ERROR] 2020-10-28 11:41:32.009 [LogStash::Runner] Logstash - java.lang.IllegalStateException: Logstash stopped processing because of an error: (SystemExit) exit

[elasticforme (Sachin)]

Alright fixed. figure.

It was logic problem. I was defining new field

for example
orginal_number = 12

then along the code I was creating
mutate { add_field => { "new_original_number" => "%{original_number}" } }

and it was now string as "12" and then after few code I was using that new_original_number as some calculation.

man o man. took almost whole day to figure out what is going on.. I thought integer value going in new field will be automatically integer. LOL