[jira] [Commented] (METRON-1378) Create a summarizer

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/METRON-1378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16313786#comment-16313786 ] 

ASF GitHub Bot commented on METRON-1378:
----------------------------------------

Github user cestella commented on the issue:

    https://github.com/apache/metron/pull/879
  
    So, the discuss thread has been going for some time now and the discussion is mostly around forward-thinking extensions to this.  Are we at the point to agree that this is a viable first step and this can be reviewed?


> Create a summarizer
> -------------------
>
>                 Key: METRON-1378
>                 URL: https://issues.apache.org/jira/browse/METRON-1378
>             Project: Metron
>          Issue Type: Improvement
>            Reporter: Casey Stella
>
> We have a nice and generalized infrastructure for loading data into HBase and interacting with it via `flatfile_loader.sh` and `ENRICHMENT_GET()`.  It is also useful to summarize a set of data into a static data structure, store it on HDFS and interact with it via stellar.  To this end, to complement the `flatfile_loader.sh`, we should have a `flatfile_summarizer.sh` that, using the same extractor config, will process a flat file and output a serialized object.
> The usecase for this is as follows:
> Let's say that I have a static list of domains in the second column of a CSV, domains.csv, and I want to generate a bloom filter with those domains in them sans TLD.
> I should be able to create a file called `bloom.ser` with the serialized bloom filter given the extractor config:
> {code}
> {
>   "config" : {
>     "columns" : {
>        "rank" : 0,
>        "domain" : 1
>     },
>     "value_transform" : {
>        "domain" : "DOMAIN_REMOVE_TLD(domain)"
>     },
>     "value_filter" : "LENGTH(domain) > 0",
>     "state_init" : "BLOOM_INIT()",
>     "state_update" : {
>        "state" : "BLOOM_ADD(state, domain)"
>                      },
>     "state_merge" : "BLOOM_MERGE(states)",
>     "separator" : ","
>   },
>   "extractor" : "CSV"
> }
> {code}
> Note, the associated stellar function `OBJECT_GET` is pending.



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