streaming window operations

2015-03-27 Thread Emmanuel
Hello, Looking at the window operators, I see things like sum, min, max but they're always for a single 'field'.Is there an easy way to do stats like min, max, average on a window but on many different fields at once?Should I split the stream into many parallel streams with single fields to achi

Query Optimisation layer for flink streaming

2015-03-27 Thread Wepngong Benaiah
hello I have updated the proposal on melange and will like that you appraise the proposal so that i will do any necessary refinements before its late for any corrections Thanks @gyfora , @rmetzger, @senorcarbone @mbalassi -- Wepngong Ngeh Benaiah

Re: Contact from site - Lou

2015-03-27 Thread Maximilian Michels
Hi Lou, Thanks for your interest in Apache Flink. What exactly do you mean by "cluster/job manager"? Are you referring to a cluster resource management environment like Hadoop YARN? Currently, Flink has a standalone and a YARN execution mode. In the YARN case, cluster resource allocation is handl

Fwd: Contact from site - Lou

2015-03-27 Thread Kostas Tzoumas
Hi, I am forwarding this question from Lou so that others can benefit as well. Kostas -- Forwarded message -- From: Date: Thu, Mar 26, 2015 at 4:07 PM Hi there, I am Lou, a Ph.D. research scientist working at Ericsson Research (ER), Stockholm, Sweden. At first, many thanks f