We have two different Hortonworks clusters and I would like to know if I can connect to both the clusters using one Talend job and process data.
I think - simple answer, "No"
but all depends from - what are You want to achieve ? why You need connect to 2 cluster in one Job?
Yes you can! tDuckTape compoment ) sorry couldn't handle myself.
Migration purposes? or different cluster functions/tasks? If you mean hdfs and get your data from one to another...