Hello Nikolay, This is good news. Finally this capability is coming to Ignite.
Val, Vladimir, could you do a preliminary review? Answering on your questions. 1. Yardstick should be enough for performance measurements. As a Spark user, I will be curious to know what’s the point of this integration. Probably we need to compare Spark + Ignite and Spark + Hive or Spark + RDBMS cases. 2. If Spark community is reluctant let’s include the module in ignite-spark integration. — Denis > On Sep 25, 2017, at 11:14 AM, Николай Ижиков <nizhikov....@gmail.com> wrote: > > Hello, guys. > > Currently, I’m working on integration between Spark and Ignite [1]. > > For now, I implement following: > * Ignite DataSource implementation(IgniteRelationProvider) > * DataFrame support for Ignite SQL table. > * IgniteCatalog implementation for a transparent resolving of ignites > SQL tables. > > Implementation of it can be found in PR [2] > It would be great if someone provides feedback for a prototype. > > I made some examples in PR so you can see how API suppose to be used [3]. > [4]. > > I need some advice. Can you help me? > > 1. How should this PR be tested? > > Of course, I need to provide some unit tests. But what about scalability > tests, etc. > Maybe we need some Yardstick benchmark or similar? > What are your thoughts? > Which scenarios should I consider in the first place? > > 2. Should we provide Spark Catalog implementation inside Ignite codebase? > > A current implementation of Spark Catalog based on *internal Spark API*. > Spark community seems not interested in making Catalog API public or > including Ignite Catalog in Spark code base [5], [6]. > > *Should we include Spark internal API implementation inside Ignite code > base?* > > Or should we consider to include Catalog implementation in some external > module? > That will be created and released outside Ignite?(we still can support and > develop it inside Ignite community). > > [1] https://issues.apache.org/jira/browse/IGNITE-3084 > [2] https://github.com/apache/ignite/pull/2742 > [3] https://github.com/apache/ignite/pull/2742/files#diff- > f4ff509cef3018e221394474775e0905 > [4] https://github.com/apache/ignite/pull/2742/files#diff- > f2b670497d81e780dfd5098c5dd8a89c > [5] http://apache-spark-developers-list.1001551.n3. > nabble.com/Spark-Core-Custom-Catalog-Integration-between- > Apache-Ignite-and-Apache-Spark-td22452.html > [6] https://issues.apache.org/jira/browse/SPARK-17767 > > -- > Nikolay Izhikov > nizhikov....@gmail.com
