RDMA for Apache Hadoop Change Log
----------------------
This file briefly describes the changes to the RDMA for Apache 
Hadoop software package. The logs are arranged in the "most 
recent first" order. 

Release 0.9.9 - 2014-03-31

  NEW FEATURES

    - On-demand connection setup

    - HDFS over native InfiniBand and RoCE
      - Parallel replication support

    - MapReduce over native InfiniBand and RoCE
      - Advanced optimization in overlapping
        - map, shuffle, and merge
        - shuffle, merge, and reduce

    - RPC over native InfiniBand and RoCE
      - Intelligent buffer allocation and adjustment for serialization

  BUG FIXES

    - Fix an issue in framework startup

    - Fix for configurable port selection

    - MapReduce over native InfiniBand and RoCE
      - Fix for progress calculation in Reduce tasks

    - HDFS over native InfiniBand and RoCE
      - Fix an issue in DataNode initialization

Release 0.9.8 - 2013-11-08

  NEW FEATURES

    - Based on Apache Hadoop 1.2.1

    - High performance design with native InfiniBand and RoCE support at 
      the verbs level for HDFS, MapReduce, and RPC components

    - Compliant with Apache Hadoop 1.2.1 APIs and applications

    - Easily configurable for native InfiniBand, RoCE, and the traditional
      sockets based support (Ethernet and InfiniBand with IPoIB)

    - HDFS over native InfiniBand and RoCE
      - RDMA-based write
      - RDMA-based replication
      - Tuned packet size 

    - MapReduce over native InfiniBand and RoCE
      - RDMA-based shuffle
      - Prefetching and caching of map outputs
      - In-memory merge
      - Overlapping of merge and reduce

    - RPC over native InfiniBand and RoCE
      - JVM-bypassed buffer management
      - On-demand InfiniBand connection setup
      - RDMA or send/recv based adaptive communication

    - Tested with 
      - Mellanox InfiniBand adapters (DDR, QDR and FDR)
      - RoCE support with Mellanox adapters
      - Various multi-core platforms
      - Different file systems with disks and SSDs 

  BUG FIXES

    - MapReduce over InfiniBand
      - Reducing the waiting time for the prefetch cache read
      - Enabling Reduce tasks to randomize the shuffle pattern

    - HDFS over InfiniBand
      - Fix an issue in processing multiple blocks concurrently in a 
        single task 

Release 0.9.1 - 2013-08-09

  BUG FIXES

    - MapReduce over InfiniBand
      - Fix an issue in handling re-initiated tasks for a failed
        task scenario
      - Fix an issue in resolving hostnames inside ReduceTask

    - RPC over InfiniBand
      - Fix an issue in processing messages inside RPC server

    - HDFS over InfiniBand
      - Improved debug messages and code cleanup

Release 0.9.0 - 2013-06-13

  NEW FEATURES

    - Based on Apache Hadoop 0.20.2

    - High performance design with native InfiniBand support at the verbs
      level for HDFS, MapReduce, and RPC components

    - Compliant with Apache Hadoop 0.20.2 APIs and applications

    - Easily configurable for both native InfiniBand and the traditional
      sockets based support (Ethernet and InfiniBand with IPoIB)

    - HDFS over native InfiniBand
      - RDMA-based write
      - RDMA-based replication
      - Tuned packet size 

    - MapReduce over native InfiniBand
      - RDMA-based shuffle
      - Prefetching and caching of map outputs
      - In-memory merge
      - Overlapping of merge and reduce

    - RPC over native InfiniBand
      - JVM-bypassed buffer management
      - On-demand InfiniBand connection setup
      - RDMA or send/recv based adaptive communication

    - Tested with 
      - Mellanox InfiniBand adapters (DDR, QDR, and FDR) 
      - Various multi-core platforms
      - Different file systems with disks and SSDs