[IGNITE-4262] Hadoop Accelerator performance improvements.

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0
• Component/s: hadoop
• Assignee: Vladimir Ozerov
• Reporter: Vladimir Ozerov
• Created: 22/Nov/16 14:47
• Updated: 16/Dec/16 10:58
• Resolved: 16/Dec/16 10:58

Issue Links

• relates to: IGNITE-4294 Allow unaligned memory access flag override in GridUnsafe.
• relates to: IGNITE-4295 GridUnsafe: implement specialized methods for every kind of copy operation.

Sub-Tasks

• Hadoop: optionally stripe mapper output for every partition.: Resolved
• Hadoop messages must use "direct marshallable" infrastructure.: Resolved
• Hadoop: control shuffle message buffer size through property.: Resolved
• Hadoop: control shuffle jobs "sleep" backpressure with property.: Resolved
• Hadoop: support raw comparator.: Resolved
• Hadoop: decouple mapper and reducer maps.: Resolved
• Hadoop: send only one shuffle ack at the very end of shuffle processing.: Resolved
• Hadoop: eliminate map threads pauses during startup: Resolved
• Hadoop: allow optional classloader reuse between tasks.: Resolved