Otto Fowler,

Thanks for the reply. I saw it uses same Java regex under the hood. I got
bit sceptic by seeing this open issue
<> in java-grok which says
grok is much slower when compared with pure regex. The fix is not available
yet in metron as it need few changes in the API and issue to be closed. As
data volume is so huge in my requirement I had to double check and confirm
before I go with one. Also metron documentation
itself says the below statement under Parser Adapter section.

"Grok parser adapters are designed primarly for someone who is not a Java
coder for quickly standing up a parser adapter for lower velocity
topologies. Grok relies on Regex for message parsing, which is much slower
than purpose-built Java parsers, but is more extensible. Grok parsers are
defined via a config file and the topplogy does not need to be recombiled
in order to make changes to them."

On Wed, Jul 11, 2018 at 8:01 PM, Otto Fowler <[EMAIL PROTECTED]>
Muhammed Irshad K T
Senior Software Engineer
Skype : muhammed.irshad.k.t