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https://issues.apache.org/jira/browse/METRON-870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15978592#comment-15978592
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ASF GitHub Bot commented on METRON-870:
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Github user nishihatapalmer commented on the issue:
https://github.com/apache/incubator-metron/pull/541
Hi, byteseek author here. I notice you're using the standard
BoyerMooreHorspool searcher. Just to let you know that the
HorspoolFinalFlagSearcher offers much better performance than the standard
Horspool searcher - about 1.5 to 2 times faster in my tests - and uses no more
memory or pre-processing time.
It's essentially the same algorithm as Horpsool, but re-arranges it a bit
so that it only needs to verify a match when the algorithm detects that the
last character matches the pattern, which can be done using a negative shift
value (the "final flag"). Since verification is expensive to perform on each
loop iteration, this performs much better in general.
> Add filtering by packet payload to the pcap query
> -------------------------------------------------
>
> Key: METRON-870
> URL: https://issues.apache.org/jira/browse/METRON-870
> Project: Metron
> Issue Type: Improvement
> Reporter: Casey Stella
>
> Currently we have the ability to filter packets in the pcap query tool by
> header information (src/dest ip/port). We should be able to filter by binary
> regex on the packets themselves.
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