[HIVE-9654] LLAP: initialize IO during service startup, with service configuration

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: llap
• Fix Version/s: llap
• Assignee: Gunther Hagleitner
• Reporter: Sergey Shelukhin
• Created: 11/Feb/15 20:57
• Updated: 17/Feb/16 01:33
• Resolved: 23/Feb/15 22:55

Description

Right now LLAP IO is a singleton that is initialized on first use with configuration of the caller (first query).
It needs to be initialized once before queries are accepted instead... see LlapIoProxy.java

  // TODO: temporary interface. LLAP daemon should init this once during
  //       startup then others should use get w/o configuration.