Comments (2)
I agree with you on the expected output. This behavior seems like a new bug, which may be expected given we did some internal changes to the grok library to improve performance and may have broken something.
I'd like to get some tests that show this bad behavior so we can ensure it stays fixed in the future.
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I haven't yet confirmed this. Not sure if anyone else has reproduced it either.
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Related Issues (20)
- Memory leak on 5.x
- Ability to auto-sort match options by frequency of match HOT 1
- getting values as an array HOT 1
- remove_field not working HOT 2
- "Prefix" functionality for grok HOT 4
- Track number of failed matches when using multiple pattern per field
- Warn when patterns don't have anchors HOT 1
- Significant Performance Regression using Jruby Timeouts HOT 8
- Implement ECS-Compatibility Mode HOT 4
- Logstash pipeline to remove passwords from log data HOT 1
- Using event fileds in configuration options HOT 1
- pure ruby regexp <capture:int> coercion does not work
- captures with same name won't coerce properly
- Logstash for iis SMTP
- Incoherent behavior of field references with overwrite
- [Test Failure] Syslog grok tests are failing on Logstash 8.x
- Behaviour when pattern writes to same input field (without "overwrite" option) HOT 1
- Add property to limit backtracking
- Regression on grok is case of match failure HOT 4
- Pipeline crashes with undefined method `each' for nil:NilClass error in event filter method
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