Thanks, Tim - I think I understand. You are proposing to do things at the operator level, rather than at the DAG level.
B could then have 6 parallel partitions, some of which process the same data simultaneously. X1 X1 X2 X2 X3 X3 In this scenario, is it possible for the OPERATOR to fail terminating all the pipelines or is it only possible for an individual physical pipeline to fail - therefore not affecting the others? On 9/23/15, 11:48 AM, "Timothy Farkas" <[email protected]> wrote: >Hi Ilya, > >There are two ways to do this. You can do normal N x N partitioning, but >write a partitioner for B which assigns the same partition keys to M >operators in a partitioning. Then M partitions will receive the same data: >An example of setting partition keys in a partitioner is here: > >https://github.com/apache/incubator-apex-core/blob/devel-3/common/src/main >/java/com/datatorrent/common/partitioner/StatelessPartitioner.java > >An easier way is this: > >dag.addStream(“NAME”, A.output, B.input, C.input); > >You have to put all the input ports you want to receive the same data in >the same stream declaration. > >Tim > >On Wed, Sep 23, 2015 at 7:39 AM, Ganelin, Ilya ><[email protected]> >wrote: > >> Ram, thank you. I think this is a good starting point, however it >>requires >> having access to the stream at creation time (as well as the operator >> being added). I¹d ideally like to create a function: >> >> static void parallelize(DAG dag); >> >> This function would take the head of the DAG, and parallelize all >> downstream operators. It looks like at the moment, there is no interface >> within DAG to provide access to its operators or streams. Does such an >> interface exist or is this something I would need to expose? Was there a >> design decision to not expose these? >> >> >> On 9/23/15, 11:26 AM, "Munagala Ramanath" <[email protected]> wrote: >> >> >l >> >> ________________________________________________________ >> >> The information contained in this e-mail is confidential and/or >> proprietary to Capital One and/or its affiliates and may only be used >> solely in performance of work or services for Capital One. The >>information >> transmitted herewith is intended only for use by the individual or >>entity >> to which it is addressed. If the reader of this message is not the >>intended >> recipient, you are hereby notified that any review, retransmission, >> dissemination, distribution, copying or other use of, or taking of any >> action in reliance upon this information is strictly prohibited. If you >> have received this communication in error, please contact the sender and >> delete the material from your computer. >> >> ________________________________________________________ >> >> The information contained in this e-mail is confidential and/or >> proprietary to Capital One and/or its affiliates and may only be used >> solely in performance of work or services for Capital One. The >>information >> transmitted herewith is intended only for use by the individual or >>entity >> to which it is addressed. If the reader of this message is not the >>intended >> recipient, you are hereby notified that any review, retransmission, >> dissemination, distribution, copying or other use of, or taking of any >> action in reliance upon this information is strictly prohibited. If you >> have received this communication in error, please contact the sender and >> delete the material from your computer. >> >> ________________________________________________________ The information contained in this e-mail is confidential and/or proprietary to Capital One and/or its affiliates and may only be used solely in performance of work or services for Capital One. The information transmitted herewith is intended only for use by the individual or entity to which it is addressed. If the reader of this message is not the intended recipient, you are hereby notified that any review, retransmission, dissemination, distribution, copying or other use of, or taking of any action in reliance upon this information is strictly prohibited. If you have received this communication in error, please contact the sender and delete the material from your computer.
