hadoop/CHANGES.txt

Hadoop HDFS Change Log

Trunk (unreleased changes)

  NEW FEATURES

    HDFS-436. Introduce AspectJ framework for HDFS code and tests.
    (Konstantin Boudnik via szetszwo)

    HDFS-447. Add LDAP lookup to hdfsproxy. (Zhiyong Zhang via cdouglas)

    HDFS-459. Introduce Job History Log Analyzer. (shv)

    HDFS-461. Tool to analyze file size distribution in HDFS. (shv)

  IMPROVEMENTS

    HDFS-381. Remove blocks from DataNode maps when corresponding file
    is deleted. (Suresh Srinivas via rangadi)

    HDFS-377. Separate codes which implement DataTransferProtocol.
    (szetszwo)

    HDFS-396. NameNode image and edits directories are specified as URIs.
    (Luca Telloli via rangadi)

    HDFS-444. Allow to change probability levels dynamically in the fault
    injection framework.  (Konstantin Boudnik via szetszwo)

    HDFS-352. Documentation for saveNamespace command. (Ravi Phulari via shv)

    HADOOP-6106. Updated hadoop-core and test jars from hudson trunk 
    build #12. (Giridharan Kesavan)

    HDFS-204. Add a new metrics FilesInGetListingOps to the Namenode.
    (Jitendra Nath Pandey via szetszwo)

    HDFS-278. HDFS Outputstream close does not hang forever. (dhruba)

    HDFS-443. Add a new metrics numExpiredHeartbeats to the Namenode.
    (Jitendra Nath Pandey via szetszwo)

    HDFS-475. Add new ant targets for fault injection jars and tests.
    (Konstantin Boudnik via szetszwo)

    HDFS-458. Create a new ant target, run-commit-test.  (Jakob Homan
    via szetszwo)

    HDFS-493. Change build.xml so that the fault-injected tests are executed
    only by the run-test-*-faul-inject targets.  (Konstantin Boudnik via
    szetszwo)

    HDFS-446. Improvements to Offline Image Viewer. (Jakob Homan via shv)

    HADOOP-6160. Fix releaseaudit target to run on specific directories.
    (gkesavan)

    HDFS-501. Use enum to define the constants in DataTransferProtocol.
    (szetszwo)

    HDFS-508. Factor out BlockInfo from BlocksMap. (shv)

    HDFS-510. Rename DatanodeBlockInfo to be ReplicaInfo.
    (Jakob Homan & Hairong Kuang via shv)

    HDFS-500. Deprecate NameNode methods deprecated in NameNodeProtocol.
    (Jakob Homan via shv)

    HDFS-514. Change DFSClient.namenode from public to private.  (Bill Zeller
    via szetszwo)

    HDFS-496. Use PureJavaCrc32 in HDFS.  (Todd Lipcon via szetszwo)

    HDFS-511. Remove redundant block searches in BlockManager. (shv)

    HDFS-504. Update the modification time of a file when the file 
    is closed. (Chun Zhang via dhruba)

    HDFS-498. Add development guide and documentation for the fault injection
    framework.  (Konstantin Boudnik via szetszwo)

    HDFS-524. Further DataTransferProtocol code refactoring.  (szetszwo)

    HDFS-527. Remove/deprecate unnecessary DFSClient constructors.  (szetszwo)

    HDFS-529. Use BlockInfo instead of Block to avoid redundant block searches
    in BlockManager. (shv)

    HDFS-530. Refactor TestFileAppend* to remove code duplication.
    (Konstantin Boudnik via szetszwo)

    HDFS-451. Add fault injection tests, Pipeline_Fi_06,07,14,15, for
    DataTransferProtocol.  (szetszwo)

  BUG FIXES

    HDFS-76. Better error message to users when commands fail because of 
    lack of quota. Allow quota to be set even if the limit is lower than
    current consumption. (Boris Shkolnik via rangadi)

    HADOOP-4687. HDFS is split from Hadoop Core. It is a subproject under 
    Hadoop (Owen O'Malley)

    HADOOP-6096. Fix Eclipse project and classpath files following project
    split. (tomwhite)

    HDFS-195. Handle expired tokens when write pipeline is restablished.
    (Kan Zhang via rangadi)

    HDFS-181. Validate src path in FSNamesystem.getFileInfo(..).  (Todd
    Lipcon via szetszwo)

    HDFS-441. Remove TestFTPFileSystem.  (szetszwo)

    HDFS-440. Fix javadoc broken links in DFSClient.  (szetszwo)

    HDFS-480. Fix a typo in the jar name in build.xml.  
    (Konstantin Shvachko via gkesavan)

    HDFS-438. Check for NULL before invoking GenericArgumentParser in
    DataNode. (Raghu Angadi)

    HDFS-415. BlockReceiver hangs in case of certain runtime exceptions.
    (Konstantin Boudnik via rangadi)

    HDFS-462. loadFSImage should close edits file. (Jakob Homan via shv)

    HDFS-489. Update TestHDFSCLI for the -skipTrash option in rm. (Jakob Homan
    via szetszwo)

    HDFS-445. pread() does not pick up changes to block locations. 
    (Kan Zhang via rangadi) 

    HDFS-463. CreateEditLog utility broken after HDFS-396 (URI for
    FSImage). (Suresh Srinivas via rangadi)

    HDFS-484. Fix bin-package and package target to package jar files.
    (gkesavan)

    HDFS-490. Eliminate the deprecated warnings introduced by H-5438.
    (He Yongqiang via szetszwo)

    HDFS-119. Fix a bug in logSync(), which causes NameNode block forever.
    (Suresh Srinivas via shv)

    HDFS-167. Fix a bug in DFSClient that caused infinite retries on write.
    (Bill Zeller via szetszwo)

    HDFS-534. Include avro in ivy.  (szetszwo)

Release 0.20.1 - Unreleased

  IMPROVEMENTS

    HDFS-438. Improve help message for space quota command. (Raghu Angadi)

  BUG FIXES

    HDFS-525. The SimpleDateFormat object in ListPathsServlet is not thread
    safe.  (Suresh Srinivas via szetszwo)