hadoop/hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-3092.txt

Hadoop HDFS Change Log

HDFS-3092 branch changes

  INCOMPATIBLE CHANGES

  NEW FEATURES

    HDFS-3185. Add configuration of Journal Service Daemons. 
    (Hari Mankude via suresh)

    HDFS-3213. Persist the cluster id and nsid in JournalService storage
    directory.  (Hari Mankude via szetszwo)

    HDFS-3274. Add a new conf key dfs.journal.edits.dir and use it for
    edit log initialization.  (Hari Mankude via szetszwo)

    HDFS-3283. Add http server to journal service.  (Brandon Li via szetszwo)

    HDFS-3196. Add Journal and JournalDiskWriter for journal service.
    (szetszwo)

    HDFS-3201. Add GetJournalEditServlet for downloading edit logs from journal
    service.  (Brandon Li via szetszwo)

    HDFS-3313. Create a protocol for journal service synchronziation.  (Brandon
    Li via szetszwo)

    HDFS-3186. Add ability to journal service to sync journals from another
    active journal service. (Brandon Li via suresh)

  IMPROVEMENTS

  OPTIMIZATIONS

  BUG FIXES

    HDFS-3388. GetJournalEditServlet should close output stream only if the
    stream is used.  (Brandon Li via szetszwo)

    HDFS-3511. Update GetJournalEditServlet and JournalHttpServer for the api
    changes in SecurityUtil.  (Brandon Li via szetszwo)