rather easy to do in Pig with a UDF, filter values > threshold, Group ALL, then nested foreach which does an order by on the timestamp and calls your UDF on the sorted bag in the generate On Mar 29, 2012 11:03 AM, "banermatt" <banerm...@hotmail.fr> wrote:
> > Hello, > > I'm developping a log file anomaly detection system on an hadoop cluster. > I'm looking for a way to process query like: "select all values when > value>threshold for a duration>30 secondes". Do you know a tool which could > help me to process such a query? > I documented on the script langages pig, hive and jaql which seem to have > very similar application. I tried it but I was not be able to do what I > want. > > Thank you in advance, > > Matthieu > > -- > View this message in context: > http://old.nabble.com/Temporal-query-tp33544869p33544869.html > Sent from the Hadoop core-user mailing list archive at Nabble.com. > >
