[TAJO-855] Refactor TaskRunnerManager/TaskRunner/Task

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: Worker
• Assignee: Jinho Kim
• Reporter: Jinho Kim
• Created: 28/May/14 02:20
• Updated: 12/Mar/15 23:29
• Resolved: 12/Mar/15 23:29

Description

Currently, A task executed in TaskRunner. The TaskRunners is created in ExecutionBlock.
Reserved resources are not released when a execution block are not completed.
We should have fix the woker in order to execute query concurrently

• TaskRunnerManager
  • Queueing the task
  • Report the taskRunner monitoring (running/success/failed ..)
  • Release/Allocate the resources

• TaskRunner
  • Change the lifecycle (like TaskRunnerManager)
  • Execute a task
  • Control the task status

• Task
  • Remove the QueryMaster dependency

Issue Links

• is related to: TAJO-540 (Umbrella) Implement Tajo Query Scheduler

Sub-Tasks

• Add executionblock event in worker: Resolved
• Refactor worker rpc information: Resolved