HADOOP-4687. Updating CHANGES.txt

git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/branches/HADOOP-4687/core@785393 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -56,6 +56,18 @@ Trunk (unreleased changes)
     HADOOP-4359. Support for data access authorization checking on Datanodes.
     (Kan Zhang via rangadi)
 
+    HADOOP-5690. Change org.apache.hadoop.examples.DBCountPageView to use 
+    new mapreduce api. (Amareshwari Sriramadasu via sharad)
+
+    HADOOP-5694. Change org.apache.hadoop.examples.dancing to use new 
+    mapreduce api. (Amareshwari Sriramadasu via sharad)
+
+    HADOOP-5696. Change org.apache.hadoop.examples.Sort to use new 
+    mapreduce api. (Amareshwari Sriramadasu via sharad)
+
+    HADOOP-5698. Change org.apache.hadoop.examples.MultiFileWordCount to 
+    use new mapreduce api. (Amareshwari Sriramadasu via sharad)
+
   NEW FEATURES
 
     HADOOP-4268. Change fsck to use ClientProtocol methods so that the
@@ -122,6 +134,21 @@ Trunk (unreleased changes)
     HADOOP-5643. Adds a way to decommission TaskTrackers while the JobTracker
     is running. (Amar Kamat via ddas)
 
+    HADOOP-4829. Allow FileSystem shutdown hook to be disabled.
+    (Todd Lipcon via tomwhite)
+
+    HADOOP-5815. Sqoop: A database import tool for Hadoop.
+    (Aaron Kimball via tomwhite)
+
+    HADOOP-4861. Add disk usage with human-readable size (-duh).
+    (Todd Lipcon via tomwhite)
+
+    HADOOP-5844. Use mysqldump when connecting to local mysql instance in Sqoop.
+    (Aaron Kimball via tomwhite)
+
+    HADOOP-5170. Allows jobs to set max maps/reduces per-node and per-cluster.
+    (Matei Zaharia via ddas)
+
   IMPROVEMENTS
 
     HADOOP-4565. Added CombineFileInputFormat to use data locality information
@@ -326,9 +353,6 @@ Trunk (unreleased changes)
     HADOOP-5080. Add new test cases to TestMRCLI and TestHDFSCLI
     (V.Karthikeyan via nigel)
 
-    HADOOP-4372. Improves the way history filenames are obtained and manipulated.
-    (Amar Kamat via ddas)
-
     HADOOP-5135. Splits the tests into different directories based on the 
     package. Four new test targets have been defined - run-test-core, 
     run-test-mapred, run-test-hdfs and run-test-hdfs-with-mr.
@@ -344,8 +368,6 @@ Trunk (unreleased changes)
     HADOOP-5780. Improve per block message prited by "-metaSave" in HDFS.
     (Raghu Angadi)
 
-    HADOOP-5792. To resolve jsp-2.1 jars through ivy (Giridharan Kesavan) 
-
     HADOOP-5823. Added a new class DeprecatedUTF8 to help with removing
     UTF8 related javac warnings. These warnings are removed in 
     FSEditLog.java as a use case. (Raghu Angadi)
@@ -367,6 +389,61 @@ Trunk (unreleased changes)
     HADOOP-5858. Eliminate UTF8 and fix warnings in test/hdfs-with-mr package.
     (shv)
 
+    HADOOP-5866. Move DeprecatedUTF8 from o.a.h.io to o.a.h.hdfs since it may
+    not be used outside hdfs. (Raghu Angadi)
+
+    HADOOP-5857. Move normal java methods from hdfs .jsp files to .java files.
+    (szetszwo)
+
+    HADOOP-5873. Remove deprecated methods randomDataNode() and
+    getDatanodeByIndex(..) in FSNamesystem.  (szetszwo)
+
+    HADOOP-5572. Improves the progress reporting for the sort phase for both
+    maps and reduces. (Ravi Gummadi via ddas)
+
+    HADOOP-5839. Fix EC2 scripts to allow remote job submission.
+    (Joydeep Sen Sarma via tomwhite)
+
+    HADOOP-5877. Fix javac warnings in TestHDFSServerPorts, TestCheckpoint, 
+    TestNameEditsConfig, TestStartup and TestStorageRestore.
+    (Jakob Homan via shv)
+
+    HADOOP-5438. Provide a single FileSystem method to create or open-for-append
+    to a file.  (He Yongqiang via dhruba)
+
+    HADOOP-5472. Change DistCp to support globbing of input paths.  (Dhruba
+    Borthakur and Rodrigo Schmidt via szetszwo)
+
+    HADOOP-5175. Don't unpack libjars on classpath. (Todd Lipcon via tomwhite)
+
+    HADOOP-5620. Add an option to DistCp for preserving modification and access
+    times.  (Rodrigo Schmidt via szetszwo)
+
+    HADOOP-5664. Change map serialization so a lock is obtained only where
+    contention is possible, rather than for each write. (cdouglas)
+
+    HADOOP-5896. Remove the dependency of GenericOptionsParser on 
+    Option.withArgPattern. (Giridharan Kesavan and Sharad Agarwal via 
+    sharad)
+
+    HADOOP-5784. Makes the number of heartbeats that should arrive a second
+    at the JobTracker configurable. (Amareshwari Sriramadasu via ddas)
+
+    HADOOP-5955. Changes TestFileOuputFormat so that is uses LOCAL_MR
+    instead of CLUSTER_MR. (Jothi Padmanabhan via das)
+
+    HADOOP-5948. Changes TestJavaSerialization to use LocalJobRunner 
+    instead of MiniMR/DFS cluster. (Jothi Padmanabhan via das)
+
+    HADOOP-2838. Add mapred.child.env to pass environment variables to 
+    tasktracker's child processes. (Amar Kamat via sharad)
+
+    HADOOP-5961. DataNode process understand generic hadoop command line
+    options (like -Ddfs.property=value). (Raghu Angadi)
+
+    HADOOP-5938. Change org.apache.hadoop.mapred.jobcontrol to use new
+    api. (Amareshwari Sriramadasu via sharad)
+
   OPTIMIZATIONS
 
     HADOOP-5595. NameNode does not need to run a replicator to choose a
@@ -494,9 +571,6 @@ Trunk (unreleased changes)
 
     HADOOP-5507. Fix JMXGet javadoc warnings.  (Boris Shkolnik via szetszwo)
 
-    HADOOP-5210. Solves a problem in the progress report of the reduce task.
-    (Ravi Gummadi via ddas)
-
     HADOOP-5191. Accessing HDFS with any ip or hostname should work as long 
     as it points to the interface NameNode is listening on. (Raghu Angadi)
 
@@ -624,6 +698,128 @@ Trunk (unreleased changes)
     HADOOP-5835. Fix findbugs warnings found in Block, DataNode, NameNode and
     a few other hdfs classes.  (Suresh Srinivas via szetszwo)
 
+    HADOOP-5853. Undeprecate HttpServer.addInternalServlet method.  (Suresh
+    Srinivas via szetszwo)
+
+    HADOOP-5801. Fixes the problem: If the hosts file is changed across restart
+    then it should be refreshed upon recovery so that the excluded hosts are 
+    lost and the maps are re-executed. (Amar Kamat via ddas)
+
+    HADOOP-5841. Resolve findbugs warnings in DistributedFileSystem,
+    DatanodeInfo, BlocksMap, DataNodeDescriptor.  (Jakob Homan via szetszwo)
+
+    HADOOP-5878. Fix import and Serializable javac warnings found in hdfs jsp.
+    (szetszwo)
+
+    HADOOP-5782. Revert a few formatting changes introduced in HADOOP-5015.
+    (Suresh Srinivas via rangadi)
+
+    HADOOP-5687. NameNode throws NPE if fs.default.name is the default value.
+    (Philip Zeyliger via shv)
+
+    HADOOP-5867. Fix javac warnings found in NNBench and NNBenchWithoutMR.
+    (Konstantin Boudnik via szetszwo)
+    
+    HADOOP-5728. Fixed FSEditLog.printStatistics IndexOutOfBoundsException.
+    (Wang Xu via johan)
+
+    HADOOP-5847. Fixed failing Streaming unit tests (gkesavan) 
+
+    HADOOP-5252. Streaming overrides -inputformat option (Klaas Bosteels 
+    via sharad)
+
+    HADOOP-5710. Counter MAP_INPUT_BYTES missing from new mapreduce api. 
+    (Amareshwari Sriramadasu via sharad)
+
+    HADOOP-5809. Fix job submission, broken by errant directory creation.
+    (Sreekanth Ramakrishnan and Jothi Padmanabhan via cdouglas)
+
+    HADOOP-5759. Fix for  IllegalArgumentException when 
+    CombineFileInputFormat is used as job InputFormat.
+    (Amareshwari Sriramadasu via dhruba)
+
+    HADOOP-5635. Change distributed cache to work with other distributed file
+    systems. (Andrew Hitchcock via tomwhite)
+
+    HADOOP-5856. Fix "unsafe multithreaded use of DateFormat" findbugs warning
+    in DataBlockScanner.  (Kan Zhang via szetszwo)
+
+    HADOOP-4864. Fixes a problem to do with -libjars with multiple jars when
+    client and cluster reside on different OSs. (Amareshwari Sriramadasu via ddas)
+
+    HADOOP-5623. Fixes a problem to do with status messages getting overwritten
+    in streaming jobs. (Rick Cox and Jothi Padmanabhan via ddas)
+
+    HADOOP-5895. Fixes computation of count of merged bytes for logging.
+    (Ravi Gummadi via ddas)
+
+    HADOOP-5805. problem using top level s3 buckets as input/output directories.
+    (Ian Nowland via tomwhite)
+   
+    HADOOP-5940. trunk eclipse-plugin build fails while trying to copy 
+    commons-cli jar from the lib dir (Giridharan Kesavan via gkesavan)
+
+    HADOOP-5864. Fix DMI and OBL findbugs in packages hdfs and metrics.
+    (hairong)
+
+    HADOOP-5935. Fix Hudson's release audit warnings link is broken. 
+    (Giridharan Kesavan via gkesavan)
+
+    HADOOP-5947. Delete empty TestCombineFileInputFormat.java
+
+    HADOOP-5899. Move a log message in FSEditLog to the right place for
+    avoiding unnecessary log.  (Suresh Srinivas via szetszwo)
+
+    HADOOP-5944. Add Apache license header to BlockManager.java.  (Suresh
+    Srinivas via szetszwo)
+
+    HADOOP-5891. SecondaryNamenode is able to converse with the NameNode 
+    even when the default value of dfs.http.address is not overridden.
+    (Todd Lipcon via dhruba)
+
+    HADOOP-5953. The isDirectory(..) and isFile(..) methods in KosmosFileSystem
+    should not be deprecated.  (szetszwo)
+
+    HADOOP-5954. Fix javac warnings in TestFileCreation, TestSmallBlock,
+    TestFileStatus, TestDFSShellGenericOptions, TestSeekBug and
+    TestDFSStartupVersions.  (szetszwo)
+
+    HADOOP-5956. Fix ivy dependency in hdfsproxy and capacity-scheduler.
+    (Giridharan Kesavan via szetszwo)
+
+    HADOOP-5836. Bug in S3N handling of directory markers using an object with
+    a trailing "/" causes jobs to fail. (Ian Nowland via tomwhite)
+
+    HADOOP-5861. s3n files are not getting split by default. (tomwhite)
+
+    HADOOP-5762. Fix a problem that DistCp does not copy empty directory.
+    (Rodrigo Schmidt via szetszwo)
+
+    HADOOP-5859. Fix "wait() or sleep() with locks held" findbugs warnings in
+    DFSClient.  (Kan Zhang via szetszwo)
+   
+    HADOOP-5457. Fix to continue to run builds even if contrib test fails
+    (Giridharan Kesavan via gkesavan)
+
+    HADOOP-5963. Remove an unnecessary exception catch in NNBench.  (Boris
+    Shkolnik via szetszwo)
+
+    HADOOP-5989. Fix streaming test failure.  (gkesavan)
+
+    HADOOP-5981. Fix a bug in HADOOP-2838 in parsing mapred.child.env.
+    (Amar Kamat via sharad)
+
+    HADOOP-5420. Fix LinuxTaskController to kill tasks using the process
+    groups they are launched with.
+    (Sreekanth Ramakrishnan via yhemanth)
+
+    HADOOP-6031. Remove @author tags from Java source files.  (Ravi Phulari
+    via szetszwo)
+
+    HADOOP-5980. Fix LinuxTaskController so tasks get passed 
+    LD_LIBRARY_PATH and other environment variables.
+    (Sreekanth Ramakrishnan via yhemanth)
+
 Release 0.20.1 - Unreleased
 
   INCOMPATIBLE CHANGES
@@ -631,6 +827,9 @@ Release 0.20.1 - Unreleased
     HADOOP-5726. Remove pre-emption from capacity scheduler code base.
     (Rahul Kumar Singh via yhemanth)
 
+    HADOOP-5881. Simplify memory monitoring and scheduling related
+    configuration. (Vinod Kumar Vavilapalli via yhemanth)
+
   NEW FEATURES
 
   IMPROVEMENTS
@@ -644,6 +843,9 @@ Release 0.20.1 - Unreleased
     HADOOP-5714. Add a metric for NameNode getFileInfo operation. (Jakob Homan
     via szetszwo)
 
+    HADOOP-4372. Improves the way history filenames are obtained and manipulated.
+    (Amar Kamat via ddas)
+
   OPTIMIZATIONS
 
   BUG FIXES
@@ -690,6 +892,62 @@ Release 0.20.1 - Unreleased
     HADOOP-5828. Use absolute path for mapred.local.dir of JobTracker in
     MiniMRCluster. (yhemanth)
 
+    HADOOP-4981. Fix capacity scheduler to schedule speculative tasks 
+    correctly in the presence of High RAM jobs.
+    (Sreekanth Ramakrishnan via yhemanth)
+
+    HADOOP-5210. Solves a problem in the progress report of the reduce task.
+    (Ravi Gummadi via ddas)
+
+    HADOOP-5850. Fixes a problem to do with not being able to jobs with
+    0 maps/reduces. (Vinod K V via ddas)
+
+    HADOOP-4626. Correct the API links in hdfs forrest doc so that they
+    point to the same version of hadoop.  (szetszwo)
+
+    HADOOP-5883. Fixed tasktracker memory monitoring to account for
+    momentary spurts in memory usage due to java's fork() model.
+    (yhemanth)
+
+    HADOOP-5539. Fixes a problem to do with not preserving intermediate
+    output compression for merged data.
+    (Jothi Padmanabhan and Billy Pearson via ddas)
+
+    HADOOP-5932. Fixes a problem in capacity scheduler in computing
+    available memory on a tasktracker.
+    (Vinod Kumar Vavilapalli via yhemanth)
+
+    HADOOP-5937. Correct a safemode message in FSNamesystem.  (Ravi Phulari
+    via szetszwo)
+
+    HADOOP-5908. Fixes a problem to do with ArithmeticException in the 
+    JobTracker when there are jobs with 0 maps. (Amar Kamat via ddas)
+
+    HADOOP-5924. Fixes a corner case problem to do with job recovery with
+    empty history files. Also, after a JT restart, sends KillTaskAction to 
+    tasks that report back but the corresponding job hasn't been initialized
+    yet. (Amar Kamat via ddas)
+
+    HADOOP-5882. Fixes a reducer progress update problem for new mapreduce
+    api. (Amareshwari Sriramadasu via sharad)
+
+    HADOOP-5746. Fixes a corner case problem in Streaming, where if an exception
+    happens in MROutputThread after the last call to the map/reduce method, the 
+    exception goes undetected. (Amar Kamat via ddas)
+
+    HADOOP-5884. Fixes accounting in capacity scheduler so that high RAM jobs
+    take more slots. (Vinod Kumar Vavilapalli via yhemanth)
+
+    HADOOP-5869. Fix bug in assignment of setup / cleanup task that was
+    causing TestQueueCapacities to fail.
+    (Sreekanth Ramakrishnan via yhemanth)
+
+    HADOOP-5921. Fixes a problem in the JobTracker where it sometimes never used
+    to come up due to a system file creation on JobTracker's system-dir failing. 
+    This problem would sometimes show up only when the FS for the system-dir 
+    (usually HDFS) is started at nearly the same time as the JobTracker. 
+    (Amar Kamat via ddas)
+
 Release 0.20.0 - 2009-04-15
 
   INCOMPATIBLE CHANGES
@@ -1454,7 +1712,7 @@ Release 0.20.0 - 2009-04-15
     (Rahul Kumar Singh via yhemanth)
 
     HADOOP-5328. Fixes a problem in the renaming of job history files during 
-    job recovery. Amar Kamat via ddas)
+    job recovery. (Amar Kamat via ddas)
 
     HADOOP-5417. Don't ignore InterruptedExceptions that happen when calling 
     into rpc. (omalley)
@@ -1567,7 +1825,7 @@ Release 0.19.2 - Unreleased
     (ddas)
 
     HADOOP-5392. Fixes a problem to do with JT crashing during recovery when
-    the job files are garbled. (Amar Kamat vi ddas)
+    the job files are garbled. (Amar Kamat via ddas)
 
     HADOOP-5332. Appending to files is not allowed (by default) unless
     dfs.support.append is set to true. (dhruba)
@@ -1625,6 +1883,12 @@ Release 0.19.2 - Unreleased
     HADOOP-5579. Set errno correctly in libhdfs for permission, quota, and FNF
     conditions. (Brian Bockelman via cdouglas)
 
+    HADOOP-5816. Fixes a problem in the KeyFieldBasedComparator to do with
+    ArrayIndexOutOfBounds exception. (He Yongqiang via ddas)
+
+    HADOOP-5951. Add Apache license header to StorageInfo.java.  (Suresh
+    Srinivas via szetszwo)
+
 Release 0.19.1 - 2009-02-23 
 
   IMPROVEMENTS
@@ -2268,7 +2532,7 @@ Release 0.19.0 - 2008-11-18
     (Lohit Vijayarenu via mahadev)
 
     HADOOP-3778. DFSInputStream.seek() did not retry in case of some errors.
-    (LN via rangadi)
+    (Luo Ning via rangadi)
 
     HADOOP-3661. The handling of moving files deleted through fuse-dfs to
     Trash made similar to the behaviour from dfs shell.