Re: Kicking off the Machine Learning Library

2015-01-31 Thread mkaul
Hi All, At TUB, we are looking at the possibility of hiring a new student programmer and possibly another Masters student to work on integrating Flink with Mahout DSL, to get a declarative language that can then be used to implement other ML algorithms. Just wanted to know if someone has already s

[jira] [Created] (FLINK-1467) Job deployment fails with NPE on JobManager, if TMs did not start properly

2015-01-31 Thread Robert Metzger (JIRA)
Robert Metzger created FLINK-1467: - Summary: Job deployment fails with NPE on JobManager, if TMs did not start properly Key: FLINK-1467 URL: https://issues.apache.org/jira/browse/FLINK-1467 Project: F

[jira] [Created] (FLINK-1466) Add InputFormat to read from (Hive) tables stored in MetaStore

2015-01-31 Thread Fabian Hueske (JIRA)
Fabian Hueske created FLINK-1466: Summary: Add InputFormat to read from (Hive) tables stored in MetaStore Key: FLINK-1466 URL: https://issues.apache.org/jira/browse/FLINK-1466 Project: Flink

[jira] [Created] (FLINK-1465) GlobalBufferPool reports negative memory allocation

2015-01-31 Thread Robert Metzger (JIRA)
Robert Metzger created FLINK-1465: - Summary: GlobalBufferPool reports negative memory allocation Key: FLINK-1465 URL: https://issues.apache.org/jira/browse/FLINK-1465 Project: Flink Issue Typ

Re: Design Question in Expression API

2015-01-31 Thread Aljoscha Krettek
Yes, that's exactly my reasoning for wanting to hide it. On Sat, Jan 31, 2015 at 10:32 AM, Stephan Ewen wrote: > My first Intuition is to not expose the row data type. If we add columnar > executing later, there may never be a Row data type during runtime (cp > paper on hyper runtime engine). > >

Re: Design Question in Expression API

2015-01-31 Thread Stephan Ewen
My first Intuition is to not expose the row data type. If we add columnar executing later, there may never be a Row data type during runtime (cp paper on hyper runtime engine). For these declarative operations, I think it is a big advantage to keep the underpinnings strictly separate so we can cha