Java-Grok IS java regex.  It is just a DSL over Java regex.  It takes grok
expressions ( that can reference other expressions and be compound ) and
parses/resolves them and then builds one big regex out of them.
Also, Groks, once parsed / used are re-used, so at that point they are like
compiled regex’s.

That is not to say that that takes 0 time, but it may help you to
understand.

https://github.com/thekrakken/java-grok/blob/master/src/main/java/io/krakens/grok/api/Grok.java
https://github.com/thekrakken/java-grok/blob/master/src/main/java/io/krakens/grok/api/GrokCompiler.java

On July 11, 2018 at 07:13:38, Muhammed Irshad ([EMAIL PROTECTED])
wrote:

Thanks a lot Kevin for replying. Which thread are you mentioning ? The
stackoverflow link ? I could not see any such option.

On Wed, Jul 11, 2018 at 3:04 PM, Kevin Waterson <[EMAIL PROTECTED]>
wrote:

> Like the thread says, the two regex engines are wildly different,
however..
> you can increase the threads using -w option in grok to increase the
> threads.
>
> Kevin
>
> On Wed, Jul 11, 2018 at 5:35 PM Muhammed Irshad <[EMAIL PROTECTED]>
> wrote:
>
> > Hi All,
> >
> > I am trying to write Java custom parser for parsing AD logs. I am
> expecting
> > log flow of 10 million AD events per second. Is using Java regex to
parse
> > benefit over using Grok parser in terms of performance ? Is there any
> > performance benchmark or insights regarding the same ?
> >
> > I found this stackoverflow
> > <
> > https://stackoverflow.com/questions/43222863/logstash-
> grok-filter-is-slower-than-java-regex-pattern-matching
> > >
> > question which inspired me for this post.
> >
> > --
> > Muhammed Irshad K T
> > Senior Software Engineer
> > +919447946359
> > [EMAIL PROTECTED]
> > Skype : muhammed.irshad.k.t
> >
>

--
Muhammed Irshad K T
Senior Software Engineer
+919447946359
[EMAIL PROTECTED]
Skype : muhammed.irshad.k.t
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB