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From "Xiaoyi Lu@cse.osu" <l...@cse.ohio-state.edu>
Subject Announcing the Release of RDMA for Apache Hadoop 0.9.9
Date Tue, 01 Apr 2014 00:37:25 GMT
The RDMA for Apache Hadoop team is pleased to announce the release of
0.9.9 package (technology preview) with the following features.

* RDMA for Apache Hadoop 0.9.9 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)
   - On-demand connection setup
   - HDFS over native InfiniBand and RoCE
       - RDMA-based write
       - RDMA-based replication
       - Parallel replication support
   - MapReduce over native InfiniBand and RoCE
       - RDMA-based shuffle
       - Prefetching and caching of map outputs
       - In-memory merge
       - Advanced optimization in overlapping
           - map, shuffle, and merge
           - shuffle, merge, and reduce
   - RPC over native InfiniBand and RoCE
       - JVM-bypassed buffer management
       - RDMA or send/recv based adaptive communication
       - Intelligent buffer allocation and adjustment for serialization
   - Tested with
       - Mellanox InfiniBand adapters (DDR, QDR, and FDR)
       - RoCE
       - Various multi-core platforms
       - Different file systems with disks and SSDs

* Bug Fixes (since 0.9.8)

    - 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

For downloading RDMA for Apache Hadoop 0.9.9 package and the
associated user guide, please visit the following URL:

http://hadoop-rdma.cse.ohio-state.edu

Sample performance numbers for benchmarks using RDMA for Apache Hadoop
0.9.9 version can be viewed by visiting the `Performance' tab of the
above website.

All questions, feedbacks and bug reports are welcome. Please post it
to the hadoop-rdma-discuss mailing list (hadoop-rdma-discuss at
cse.ohio-state.edu).

Thanks,

The RDMA for Apache Hadoop Team

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