Code Snippet :) DataSet<Person> updatedPersonOne = inPerson.coGroup(inStudent) .where("name").equalTo("name") .with(new ComputeStudiesProfile());
DataSet<Person> updatedPersonTwo = updatedPersonOne.coGroup(inJobs) .where("name").equalTo("name") .with(new ComputeJobsProfile()); updatedPersonTwo.print(); On Wed, Jun 3, 2015 at 3:45 PM, Mustafa Elbehery <elbeherymust...@gmail.com> wrote: > Hi, > > I am trying to write two coGrouprs in sequence on the same ETL .. In use > common dataset in both of them, in the first coGroup I update the initial > dataset and retrieve the result in a new dataset object. Then I use the > result in the second coGroup with another new dataset. > > While debugging, I could see the coGroup.next is *false *, however, in > the next iteration it has elements. I tried to force enabling ObjectReuse, > I got *half* of the expected result. I have attached a screenshot for the > debugger. > > My question is, does this has a relation about the concurrent execution of > different tasks in Flink. And how to solve this problem ?? > > Regards. > > > -- > Mustafa Elbehery > EIT ICT Labs Master School <http://www.masterschool.eitictlabs.eu/home/> > +49(0)15750363097 > skype: mustafaelbehery87 > > -- Mustafa Elbehery EIT ICT Labs Master School <http://www.masterschool.eitictlabs.eu/home/> +49(0)15750363097 skype: mustafaelbehery87