Hello everybody,
I've been playing with Metron for a few weeks now, it is really a very exciting
project and I'd like first to thanks all the contributors. I'm currently
investigating around the use of profiler. I've tested it with the basic example
of counting IP address as explained in the doc, and now it's time for questions:
- In the various examples I've found, each profile computes only one
value. Is it possible to do something like that:
{
"profiles": [
{
"profile": "test",
"foreach": "ip_src_addr",
"onlyif": "exists(ip_src_addr)",
"init": { "count": 0 , "sum_rcvd_bytes": 0},
"update": { "count": "count + 1",
"sum_rcvd_bytes": "sum_rcvd_bytes + rcvdbyte" },
"result": "{'count': count, 'sum_rcvd_bytes': sum_rcvd_bytes}"
}
]
}
>From the Stellar CLI, it seems to works fine, but when I try during data
>ingest, I see no data coming into the profiler table. Please note that I've
>waited for the 15mn, and that I have deleted data in the profiler table using
>the "truncate_preserve" command in hbase.
- In case of issue, what is the right procedure to reinitialize all
the profiler stack?
- The data in the profiler table can be pulled with Stellar functions
which include some advanced features like statistics, cardinality, but is it
possible to access all of this from a Java / Scala / any other language?
- The MaaS service seems to apply to the incoming data only, how is it
possible to use it only on the aggregated profile data?
Maybe too much questions in the same mail?
Thanks,
Stéphane
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