ruby
Port already in use
Errno::EADDRINUSE.*Address already in use.*bind
Fixes
- 1.Kill the process using the port: lsof -i :3000 then kill PID
- 2.Use a different port: rails s -p 3001
- 3.Use spring stop if Spring is holding the port
serverport
Related Errors
ruby3 fixes
Logstash Grok pattern match failure
logstash.*Error.*Grok.*pattern.*match failure
- •Test pattern with Grok Debugger tool
- •Add tag_on_failure and handle non-matching events
ruby3 fixes
Logstash pipeline terminated unexpectedly
logstash.*PipelineTerminatedError.*pipeline.*shutdown
- •Check Logstash logs for underlying error causing shutdown
- •Increase JVM heap for Logstash: -Xms1g -Xmx1g in jvm.options
ruby3 fixes
Method called on nil object
NoMethodError.*undefined method.*for (nil:NilClass|nil)
- •Use safe navigation operator: object&.method
- •Add nil check: if object.present? or unless object.nil?