[IGNITE-4541] Create test for Hadoop running in external JVM

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.8
• Component/s: hadoop
• Assignee: Unassigned
• Reporter: Vladimir Ozerov
• Created: 12/Jan/17 10:11
• Updated: 14/Feb/19 13:41
• Resolved: 14/Feb/19 13:41

Description

Problem
Currently we run all Hadoop tests in synthetic "single JVM" mode. This way we miss lots of potential issues. We need to be able to run them in real distributed mode, but on a single machine.

Simplified solution
1) Start N external nodes
2) Submit a job to these nodes and validate the result

We can start with simple Teragen->Terasort->Teravalidate scenario.

Please look through Process and ProcessBuilder classes usages - most probably we already have all necessary infrastructure to start nodes in external JVM.

Issue Links

• is depended upon by: IGNITE-4808 Add all Hadoop examples as Ignite unit tests with default multi-JVM execution mode