Author: tomwhite
Date: Fri Jul 2 05:09:03 2010
New Revision: 959852
URL: http://svn.apache.org/viewvc?rev=959852&view=rev
Log:
Preparing for release 0.21.0
Modified:
hadoop/hdfs/branches/branch-0.21/CHANGES.txt
hadoop/hdfs/branches/branch-0.21/build.xml
hadoop/hdfs/branches/branch-0.21/src/docs/releasenotes.html
Modified: hadoop/hdfs/branches/branch-0.21/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/hdfs/branches/branch-0.21/CHANGES.txt?rev=959852&r1=959851&r2=959852&view=diff
==============================================================================
--- hadoop/hdfs/branches/branch-0.21/CHANGES.txt (original)
+++ hadoop/hdfs/branches/branch-0.21/CHANGES.txt Fri Jul 2 05:09:03 2010
@@ -1,6 +1,6 @@
Hadoop HDFS Change Log
-Release 0.21.0 - Unreleased
+Release 0.21.0 - 2010-07-01
INCOMPATIBLE CHANGES
Modified: hadoop/hdfs/branches/branch-0.21/build.xml
URL:
http://svn.apache.org/viewvc/hadoop/hdfs/branches/branch-0.21/build.xml?rev=959852&r1=959851&r2=959852&view=diff
==============================================================================
--- hadoop/hdfs/branches/branch-0.21/build.xml (original)
+++ hadoop/hdfs/branches/branch-0.21/build.xml Fri Jul 2 05:09:03 2010
@@ -30,7 +30,7 @@
<property name="name" value="hadoop-hdfs"/>
<!-- Need to change aop.xml project.version prop. synchronously
-->
- <property name="version" value="0.21.0-SNAPSHOT"/>
+ <property name="version" value="0.21.1-SNAPSHOT"/>
<property name="final.name" value="${name}-${version}"/>
<property name="test.hdfs.final.name" value="${name}-test-${version}"/>
<property name="ant.final.name" value="${name}-ant-${version}"/>
Modified: hadoop/hdfs/branches/branch-0.21/src/docs/releasenotes.html
URL:
http://svn.apache.org/viewvc/hadoop/hdfs/branches/branch-0.21/src/docs/releasenotes.html?rev=959852&r1=959851&r2=959852&view=diff
==============================================================================
--- hadoop/hdfs/branches/branch-0.21/src/docs/releasenotes.html (original)
+++ hadoop/hdfs/branches/branch-0.21/src/docs/releasenotes.html Fri Jul 2
05:09:03 2010
@@ -1 +1,674 @@
-THIS IS A PLACEHOLDER. REAL RELEASE NOTES WILL BE ADDED TO THIS FILE IN
RELEASE BRANCHES.
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+<head>
+<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>Hadoop HDFS 0.21.0 Release Notes</title>
+<STYLE type="text/css">
+ H1 {font-family: sans-serif}
+ H2 {font-family: sans-serif; margin-left: 7mm}
+ TABLE {margin-left: 7mm}
+ </STYLE>
+</head>
+<body>
+<h1>Hadoop HDFS 0.21.0 Release Notes</h1>
+ These release notes include new developer and user-facing
incompatibilities, features, and major improvements.
+
+
+<a name="changes"></a>
+<h2>Changes Since Hadoop 0.20.2</h2>
+
+<h3> Sub-task
+</h3>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-396'>HDFS-396</a>] -
Process dfs.name.edits.dirs as URI
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-436'>HDFS-436</a>] -
AspectJ framework for HDFS code and tests
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-444'>HDFS-444</a>] -
Current fault injection framework implementation doesn't allow to change
probability levels dynamically
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-475'>HDFS-475</a>] -
Create a separate targets for fault injection related test and jar files
creation files
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-498'>HDFS-498</a>] -
Add development guide and framework documentation
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-508'>HDFS-508</a>] -
Factor out BlockInfo from BlocksMap
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-519'>HDFS-519</a>] -
Create new tests for lease recovery
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-520'>HDFS-520</a>] -
Create new tests for block recovery
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-521'>HDFS-521</a>] -
Create new tests for pipeline
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-551'>HDFS-551</a>] -
Create new functional test for a block report.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-552'>HDFS-552</a>] -
Change TestFiDataTransferProtocol to junit 4 and add a few new tests
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-561'>HDFS-561</a>] -
Fix write pipeline READ_TIMEOUT
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-564'>HDFS-564</a>] -
Adding pipeline test 17-35
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-616'>HDFS-616</a>] -
Create functional tests for new design of the block report
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-660'>HDFS-660</a>] -
Remove deprecated methods from InterDatanodeProtocol.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-663'>HDFS-663</a>] -
DFSIO for append
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-668'>HDFS-668</a>] -
TestFileAppend3#TC7 sometimes hangs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-676'>HDFS-676</a>] -
NPE in FSDataset.updateReplicaUnderRecovery(..)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-716'>HDFS-716</a>] -
Define a pointcut for pipeline close
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-719'>HDFS-719</a>] -
Add more fault injection tests for pipeline close
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-730'>HDFS-730</a>] -
Add fault injection tests for pipleline close ack
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1057'>HDFS-1057</a>]
- Concurrent readers hit ChecksumExceptions if following a writer to
very end of file
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1067'>HDFS-1067</a>]
- Create block recovery tests that handle errors
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1100'>HDFS-1100</a>]
- Override TestFcHdfsSymlink#unwrapException
+</li>
+</ul>
+
+<h3> Bug
+</h3>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-15'>HDFS-15</a>] -
All replicas of a block end up on only 1 rack
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-29'>HDFS-29</a>] -
In Datanode, update block may fail due to length inconsistency
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-76'>HDFS-76</a>] -
Namespace quota exceeded message unclear
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-94'>HDFS-94</a>] -
The "Heap Size" in HDFS web ui may not be accurate
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-101'>HDFS-101</a>] -
DFS write pipeline : DFSClient sometimes does not detect second datanode
failure
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-119'>HDFS-119</a>] -
logSync() may block NameNode forever.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-127'>HDFS-127</a>] -
DFSClient block read failures cause open DFSInputStream to become
unusable
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-132'>HDFS-132</a>] -
Namenode in Safemode reports to Simon non-zero number of deleted files
during startup
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-145'>HDFS-145</a>] -
FSNameSystem#addStoredBlock does not handle inconsistent block length
correctly
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-167'>HDFS-167</a>] -
DFSClient continues to retry indefinitely
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-181'>HDFS-181</a>] -
INode.getPathComponents throws NPE when given a non-absolute path
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-187'>HDFS-187</a>] -
TestStartup fails if hdfs is running in the same machine
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-192'>HDFS-192</a>] -
TestBackupNode sometimes fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-195'>HDFS-195</a>] -
Need to handle access token expiration when re-establishing the pipeline
for dfs write
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-415'>HDFS-415</a>] -
Unchecked exception thrown inside of BlockReceiver cause some threads
hang
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-423'>HDFS-423</a>] -
Unbreak FUSE build and fuse_dfs_wrapper.sh
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-438'>HDFS-438</a>] -
Improve help message for quotas
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-439'>HDFS-439</a>] -
HADOOP-5961 is incorrectly committed.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-440'>HDFS-440</a>] -
javadoc warnings: broken links
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-441'>HDFS-441</a>] -
TestFTPFileSystem fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-445'>HDFS-445</a>] -
pread() fails when cached block locations are no longer valid
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-446'>HDFS-446</a>] -
Offline Image Viewer Ls visitor incorrectly says 'output file' instead
of 'input file'
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-454'>HDFS-454</a>] -
HDFS workflow in JIRA does not match MAPREDUCE, HADOOP
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-456'>HDFS-456</a>] -
Problems with dfs.name.edits.dirs as URI
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-462'>HDFS-462</a>] -
Unit tests not working under Windows
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-463'>HDFS-463</a>] -
CreateEditsLog utility broken due to FSImage URL scheme check
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-464'>HDFS-464</a>] -
Memory leaks in libhdfs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-466'>HDFS-466</a>] -
hdfs_write infinite loop when dfs fails and cannot write files > 2 GB
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-472'>HDFS-472</a>] -
Document hdfsproxy design and set-up guide
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-480'>HDFS-480</a>] -
Typo in jar name in build.xml
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-481'>HDFS-481</a>] -
Bug Fixes + HdfsProxy to use proxy user to impresonate the real user
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-482'>HDFS-482</a>] -
change HsftpFileSystem's ssl.client.do.not.authenticate.server
configuration setting to ssl-client.xml
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-483'>HDFS-483</a>] -
Data transfer (aka pipeline) implementation cannot tolerate exceptions
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-484'>HDFS-484</a>] -
bin-package and package doesnt seem to package any jar file
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-489'>HDFS-489</a>] -
Updated TestHDFSCLI for changes from HADOOP-6139
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-499'>HDFS-499</a>] -
Fix deprecation warnings introduced by HADOOP-5438
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-500'>HDFS-500</a>] -
Fix lingering and new javac warnings
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-514'>HDFS-514</a>] -
DFSClient.namenode is a public field. Should be private.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-525'>HDFS-525</a>] -
ListPathsServlet.java uses static SimpleDateFormat that has threading
issues
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-534'>HDFS-534</a>] -
Required avro classes are missing
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-538'>HDFS-538</a>] -
DistributedFileSystem::listStatus incorrectly returns null for empty
result sets
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-540'>HDFS-540</a>] -
TestNameNodeMetrics fails intermittently
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-553'>HDFS-553</a>] -
BlockSender reports wrong failed position in ChecksumException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-568'>HDFS-568</a>] -
TestServiceLevelAuthorization fails on latest build in Hudson
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-586'>HDFS-586</a>] -
TestBlocksWithNotEnoughRacks fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-587'>HDFS-587</a>] -
Test programs support only default queue.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-590'>HDFS-590</a>] -
When trying to rename a non-existent path, LocalFileSystem throws an
FileNotFoundException, while HDFS returns false
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-596'>HDFS-596</a>] -
Memory leak in libhdfs: hdfsFreeFileInfo() in libhdfs does not free
memory for mOwner and mGroup
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-601'>HDFS-601</a>] -
TestBlockReport should obtain data directories from MiniHDFSCluster
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-602'>HDFS-602</a>] -
Atempt to make a directory under an existing file on
DistributedFileSystem should throw an FileAlreadyExistsException instead of
FileNotFoundException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-606'>HDFS-606</a>] -
ConcurrentModificationException in invalidateCorruptReplicas()
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-609'>HDFS-609</a>] -
Create a file with the append flag does not work in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-611'>HDFS-611</a>] -
Heartbeats times from Datanodes increase when there are plenty of blocks
to delete
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-612'>HDFS-612</a>] -
FSDataset should not use org.mortbay.log.Log
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-614'>HDFS-614</a>] -
TestDatanodeBlockScanner obtain should data-node directories directly
from MiniDFSCluster
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-615'>HDFS-615</a>] -
TestLargeDirectoryDelete fails with NullPointerException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-622'>HDFS-622</a>] -
checkMinReplication should count only live node.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-625'>HDFS-625</a>] -
ListPathsServlet throws NullPointerException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-629'>HDFS-629</a>] -
Remove ReplicationTargetChooser.java along with fixing import warnings.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-637'>HDFS-637</a>] -
DataNode sends a Success ack when block write fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-638'>HDFS-638</a>] -
The build.xml refences jars that don't exist
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-640'>HDFS-640</a>] -
TestHDFSFileContextMainOperations uses old FileContext.mkdirs(..)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-641'>HDFS-641</a>] -
Move all of the benchmarks and tests that depend on mapreduce to
mapreduce
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-646'>HDFS-646</a>] -
missing test-contrib ant target would break hudson patch test process
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-647'>HDFS-647</a>] -
Internal server errors
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-653'>HDFS-653</a>] -
Multiple unit tests fail in branch-0.21
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-673'>HDFS-673</a>] -
BlockReceiver#PacketResponder should not remove a packet from the ack
queue before its ack is sent
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-677'>HDFS-677</a>] -
Rename failure due to quota results in deletion of src directory
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-679'>HDFS-679</a>] -
Appending to a partial chunk incorrectly assumes the first packet fills
up the partial chunk
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-682'>HDFS-682</a>] -
TestBlockUnderConstruction fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-688'>HDFS-688</a>] -
Add configuration resources to DFSAdmin
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-690'>HDFS-690</a>] -
TestAppend2#testComplexAppend failed on "Too many open files"
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-691'>HDFS-691</a>] -
Limitation on java.io.InputStream.available()
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-695'>HDFS-695</a>] -
RaidNode should read in configuration from hdfs-site.xml
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-699'>HDFS-699</a>] -
Primary datanode should compare replicas' on disk lengths
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-706'>HDFS-706</a>] -
Intermittent failures in TestFiHFlush
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-709'>HDFS-709</a>] -
TestDFSShell failure
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-720'>HDFS-720</a>] -
NPE in BlockReceiver$PacketResponder.run(BlockReceiver.java:923)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-722'>HDFS-722</a>] -
The pointcut callCreateBlockWriteStream in FSDatasetAspects is broken
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-724'>HDFS-724</a>] -
Pipeline close hangs if one of the datanode is not responsive.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-725'>HDFS-725</a>] -
Support the build error fix for HADOOP-6327
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-726'>HDFS-726</a>] -
Eclipse .classpath template has outdated jar files and is missing some
new ones.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-735'>HDFS-735</a>] -
TestReadWhileWriting has wrong line termination symbols
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-741'>HDFS-741</a>] -
TestHFlush test doesn't seek() past previously written part of the file
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-750'>HDFS-750</a>] -
TestRename build failure
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-751'>HDFS-751</a>] -
TestCrcCorruption succeeds but is not testing anything of value
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-756'>HDFS-756</a>] -
libhdfs unit tests do not run
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-757'>HDFS-757</a>] -
Unit tests failure for RAID
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-760'>HDFS-760</a>] -
"fs -put" fails if dfs.umask is set to 63
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-761'>HDFS-761</a>] -
Failure to process rename operation from edits log due to quota
verification
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-762'>HDFS-762</a>] -
Trying to start the balancer throws a NPE
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-763'>HDFS-763</a>] -
DataBlockScanner reporting of bad blocks is slightly misleading
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-774'>HDFS-774</a>] -
Intermittent race condition in TestFiPipelines
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-775'>HDFS-775</a>] -
FSDataset calls getCapacity() twice -bug?
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-781'>HDFS-781</a>] -
Metrics PendingDeletionBlocks is not decremented
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-783'>HDFS-783</a>] -
libhdfs tests brakes code coverage runs with Clover
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-785'>HDFS-785</a>] -
Missing license header in java source files.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-787'>HDFS-787</a>] -
Make the versions of libraries consistent
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-791'>HDFS-791</a>] -
Build is broken after HDFS-787 patch has been applied
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-792'>HDFS-792</a>] -
TestHDFSCLI is failing
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-793'>HDFS-793</a>] -
DataNode should first receive the whole packet ack message before it
constructs and sends its own ack message for the packet
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-797'>HDFS-797</a>] -
TestHDFSCLI much slower after HDFS-265 merge
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-802'>HDFS-802</a>] -
Update Eclipse configuration to match changes to Ivy configuration
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-812'>HDFS-812</a>] -
FSNamesystem#internalReleaseLease throws NullPointerException on a
single-block file's lease recovery
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-823'>HDFS-823</a>] -
In Checkpointer the getImage servlet is added to public rather than
internal servlet list
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-824'>HDFS-824</a>] -
Stop lease checker in TestReadWhileWriting
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-825'>HDFS-825</a>] -
Build fails to pull latest hadoop-core-* artifacts
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-840'>HDFS-840</a>] -
Update File Context tests to use FileContextTestHelper
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-849'>HDFS-849</a>] -
TestFiDataTransferProtocol2#pipeline_Fi_18 sometimes fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-856'>HDFS-856</a>] -
Hardcoded replication level for new files in fuse-dfs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-857'>HDFS-857</a>] -
Incorrect type for fuse-dfs capacity can cause "df" to return
negative values on 32-bit machines
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-858'>HDFS-858</a>] -
Incorrect return codes for fuse-dfs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-859'>HDFS-859</a>] -
fuse-dfs utime behavior causes issues with tar
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-861'>HDFS-861</a>] -
fuse-dfs does not support O_RDWR
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-868'>HDFS-868</a>] -
Link to Hadoop Upgrade Wiki is broken
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-877'>HDFS-877</a>] -
Client-driven block verification not functioning
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-880'>HDFS-880</a>] -
TestNNLeaseRecovery fails on windows
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-885'>HDFS-885</a>] -
Datanode toString() NPEs on null dnRegistration
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-894'>HDFS-894</a>] -
DatanodeID.ipcPort is not updated when existing node re-registers
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-897'>HDFS-897</a>] -
ReplicasMap remove has a bug in generation stamp comparison
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-909'>HDFS-909</a>] -
Race condition between rollEditLog or rollFSImage ant FSEditsLog.write
operations corrupts edits log
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-913'>HDFS-913</a>] -
TestRename won't run automatically from 'run-test-hdfs-faul-inject'
target
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-927'>HDFS-927</a>] -
DFSInputStream retries too many times for new block locations
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-938'>HDFS-938</a>] -
Replace calls to UGI.getUserName() with UGI.getShortUserName()
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-939'>HDFS-939</a>] -
libhdfs test is broken
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-940'>HDFS-940</a>] -
libhdfs uses UnixUserGroupInformation
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-961'>HDFS-961</a>] -
dfs_readdir incorrectly parses paths
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-965'>HDFS-965</a>] -
TestDelegationToken fails in trunk
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-966'>HDFS-966</a>] -
NameNode recovers lease even in safemode
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-995'>HDFS-995</a>] -
Replace usage of FileStatus#isDir()
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1000'>HDFS-1000</a>]
- libhdfs needs to be updated to use the new UGI
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1002'>HDFS-1002</a>]
- Secondary Name Node crash, NPE in edit log replay
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1010'>HDFS-1010</a>]
- HDFSProxy: Retrieve group information from UnixUserGroupInformation
instead of LdapEntry
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1014'>HDFS-1014</a>]
- Error in reading delegation tokens from edit logs.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1015'>HDFS-1015</a>]
- Intermittent failure in TestSecurityTokenEditLog
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1024'>HDFS-1024</a>]
- SecondaryNamenode fails to checkpoint because namenode fails with
CancelledKeyException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1041'>HDFS-1041</a>]
- DFSClient does not retry in getFileChecksum(..)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1046'>HDFS-1046</a>]
- Build fails trying to download an old version of tomcat
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1072'>HDFS-1072</a>]
- AlreadyBeingCreatedException with HDFS_NameNode as the lease holder
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1074'>HDFS-1074</a>]
- TestProxyUtil fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1088'>HDFS-1088</a>]
- Prevent renaming a symlink to its target
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1101'>HDFS-1101</a>]
- TestDiskError.testLocalDirs() fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1104'>HDFS-1104</a>]
- Fsck triggers full GC on NameNode
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1159'>HDFS-1159</a>]
- clean-cache target removes wrong ivy cache
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1165'>HDFS-1165</a>]
- createSymlink should not hold the fsnamesytem lock when sync its edit
log to disk
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1173'>HDFS-1173</a>]
- Fix references to 0.22 in 0.21 branch
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1181'>HDFS-1181</a>]
- Move configuration and script files post project split
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1193'>HDFS-1193</a>]
- -mvn-system-deploy target is broken which inturn fails the mvn-deploy
task leading to unstable mapreduce build.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1212'>HDFS-1212</a>]
- Harmonize HDFS JAR library versions with Common
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1255'>HDFS-1255</a>]
- test-libhdfs.sh fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1256'>HDFS-1256</a>]
- libhdfs is missing from the tarball
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1267'>HDFS-1267</a>]
- fuse-dfs does not compile
+</li>
+</ul>
+
+<h3> Improvement
+</h3>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-173'>HDFS-173</a>] -
Recursively deleting a directory with millions of files makes NameNode
unresponsive for other commands until the deletion completes
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-265'>HDFS-265</a>] -
Revisit append
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-278'>HDFS-278</a>] -
Should DFS outputstream's close wait forever?
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-288'>HDFS-288</a>] -
Redundant computation in hashCode() implemenation
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-352'>HDFS-352</a>] -
saveNamespace command should be documented.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-377'>HDFS-377</a>] -
Code Refactoring: separate codes which implement DataTransferProtocol
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-381'>HDFS-381</a>] -
Datanode should report deletion of blocks to Namenode explicitly
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-385'>HDFS-385</a>] -
Design a pluggable interface to place replicas of blocks in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-412'>HDFS-412</a>] -
Hadoop JMX usage makes Nagios monitoring impossible
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-443'>HDFS-443</a>] -
New metrics in namenode to capture lost heartbeats.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-457'>HDFS-457</a>] -
better handling of volume failure in Data Node storage
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-490'>HDFS-490</a>] -
eliminate the usage of FileSystem.create( ) depracated by Hadoop-5438
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-493'>HDFS-493</a>] -
Only fault-injected tests have to be executed by run-test-*-faul-inject
targets; none of fault-injected tests need to be ran normal testing process
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-496'>HDFS-496</a>] -
Use PureJavaCrc32 in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-501'>HDFS-501</a>] -
Use enum to define the constants in DataTransferProtocol
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-504'>HDFS-504</a>] -
HDFS updates the modification time of a file when the file is closed.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-510'>HDFS-510</a>] -
Rename DatanodeBlockInfo to be ReplicaInfo
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-511'>HDFS-511</a>] -
Redundant block searches in BlockManager.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-512'>HDFS-512</a>] -
Set block id as the key to Block
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-524'>HDFS-524</a>] -
Further DataTransferProtocol code refactoring.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-527'>HDFS-527</a>] -
Refactor DFSClient constructors
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-529'>HDFS-529</a>] -
More redundant block searches in BlockManager.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-530'>HDFS-530</a>] -
Refactor TestFileAppend* to remove code duplications
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-532'>HDFS-532</a>] -
Allow applications to know that a read request failed because block is
missing
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-539'>HDFS-539</a>] -
Fault injeciton utlis for pipeline testing needs to be refactored for
future reuse by other tests
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-546'>HDFS-546</a>] -
DatanodeDescriptor block iterator should be BlockInfo based rather than
Block.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-548'>HDFS-548</a>] -
TestFsck takes nearly 10 minutes to run - a quarter of the entire
hdfs-test time
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-549'>HDFS-549</a>] -
Allow non fault-inject specific tests execution with an explicit
-Dtestcase=... setting
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-563'>HDFS-563</a>] -
Simplify the codes in FSNamesystem.getBlockLocations(..)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-578'>HDFS-578</a>] -
Support for using server default values for blockSize and replication
when creating a file
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-581'>HDFS-581</a>] -
Introduce an iterator over blocks in the block report array.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-584'>HDFS-584</a>] -
Fail the fault-inject build if any advices are mis-bound
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-598'>HDFS-598</a>] -
Eclipse launch task for HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-605'>HDFS-605</a>] -
There's not need to run fault-inject tests by 'run-test-hdfs-with-mr'
target
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-617'>HDFS-617</a>] -
Support for non-recursive create() in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-618'>HDFS-618</a>] -
Support for non-recursive mkdir in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-630'>HDFS-630</a>] -
In DFSOutputStream.nextBlockOutputStream(), the client can exclude
specific datanodes when locating the next block.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-631'>HDFS-631</a>] -
Changes in HDFS to rename the config keys as detailed in HDFS-531.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-680'>HDFS-680</a>] -
Add new access method to a copy of a block's replica
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-685'>HDFS-685</a>] -
Use the user-to-groups mapping service in the NameNode
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-703'>HDFS-703</a>] -
Replace current fault injection implementation with one from Common
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-704'>HDFS-704</a>] -
Unify build property names to facilitate cross-projects modifications
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-707'>HDFS-707</a>] -
Remove unused method INodeFile.toINodeFileUnderConstruction()
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-728'>HDFS-728</a>] -
Create a comprehensive functional test for append
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-729'>HDFS-729</a>] -
fsck option to list only corrupted files
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-736'>HDFS-736</a>] -
commitBlockSynchronization() should directly update block GS and length.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-737'>HDFS-737</a>] -
Improvement in metasave output
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-754'>HDFS-754</a>] -
Reduce ivy console output to observable level
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-755'>HDFS-755</a>] -
Read multiple checksum chunks at once in DFSInputStream
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-758'>HDFS-758</a>] -
Improve reporting of progress of decommissioning
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-764'>HDFS-764</a>] -
Moving Access Token implementation from Common to HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-767'>HDFS-767</a>] -
Job failure due to BlockMissingException
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-786'>HDFS-786</a>] -
Implement getContentSummary(..) in HftpFileSystem
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-800'>HDFS-800</a>] -
The last block of a file under construction may change to the COMPLETE
state in response to getAdditionalBlock or completeFileInternal
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-822'>HDFS-822</a>] -
Appends to already-finalized blocks can rename across volumes
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-826'>HDFS-826</a>] -
Allow a mechanism for an application to detect that datanode(s) have
died in the write pipeline
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-832'>HDFS-832</a>] -
HDFS side of HADOOP-6222.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-844'>HDFS-844</a>] -
Log the filename when file locking fails
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-850'>HDFS-850</a>] -
Display more memory details on the web ui
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-854'>HDFS-854</a>] -
Datanode should scan devices in parallel to generate block report
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-873'>HDFS-873</a>] -
DataNode directories as URIs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-883'>HDFS-883</a>] -
Datanode shutdown should log problems with Storage.unlockAll()
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-892'>HDFS-892</a>] -
optionally use Avro for namenode RPC
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-921'>HDFS-921</a>] -
Convert TestDFSClientRetries::testNotYetReplicatedErrors to Mockito
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-930'>HDFS-930</a>] -
o.a.h.hdfs.server.datanode.DataXceiver - run() - Version mismatch
exception - more context to help debugging
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-933'>HDFS-933</a>] -
Add createIdentifier() implementation to DelegationTokenSecretManager
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-946'>HDFS-946</a>] -
NameNode should not return full path name when lisitng a diretory or
getting the status of a file
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-949'>HDFS-949</a>] -
Move Delegation token into Common so that we can use it for MapReduce
also
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-968'>HDFS-968</a>] -
s/StringBuffer/StringBuilder - as necessary
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-986'>HDFS-986</a>] -
Push HADOOP-6551 into HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-994'>HDFS-994</a>] -
Provide methods for obtaining delegation token from Namenode for hftp
and other uses
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-997'>HDFS-997</a>] -
DataNode local directories should have narrow permissions
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-998'>HDFS-998</a>] -
The servlets should quote server generated strings sent in the response
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1009'>HDFS-1009</a>]
- Support Kerberos authorization in HDFSProxy
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1011'>HDFS-1011</a>]
- Improve Logging in HDFSProxy to include cluster name associated with
the request
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1012'>HDFS-1012</a>]
- documentLocation attribute in LdapEntry for HDFSProxy isn't specific
to a cluster
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1016'>HDFS-1016</a>]
- HDFS side change for HADOOP-6569
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1031'>HDFS-1031</a>]
- Enhance the webUi to list a few of the corrupted files in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1047'>HDFS-1047</a>]
- Install/deploy source jars to Maven repo
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1054'>HDFS-1054</a>]
- Remove unnecessary sleep after failure in nextBlockOutputStream
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1063'>HDFS-1063</a>]
- Eclipse .classpath file should be generated from Ivy files to avoid
duplicating dependencies
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1078'>HDFS-1078</a>]
- update libhdfs build process to produce static libraries
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1083'>HDFS-1083</a>]
- Update TestHDFSCLI to not to expect exception class name in the error
messages
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1087'>HDFS-1087</a>]
- Use StringBuilder instead of Formatter for audit logs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1089'>HDFS-1089</a>]
- Remove uses of FileContext#isFile, isDirectory and exists
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1092'>HDFS-1092</a>]
- Use logging rather than System.err in MiniDFSCluster
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1107'>HDFS-1107</a>]
- Turn on append by default.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1126'>HDFS-1126</a>]
- Change HDFS to depend on Hadoop 'common' artifacts instead of 'core'
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1134'>HDFS-1134</a>]
- Large-scale Automated Framework
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1161'>HDFS-1161</a>]
- Make DN minimum valid volumes configurable
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1170'>HDFS-1170</a>]
- Add more assertions to TestLargeDirectoryDelete
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1199'>HDFS-1199</a>]
- Extract a subset of tests for smoke (DOA) validation.
+</li>
+</ul>
+
+<h3> New Feature
+</h3>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-204'>HDFS-204</a>] -
Revive number of files listed metrics
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-222'>HDFS-222</a>] -
Support for concatenating of files into a single file
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-235'>HDFS-235</a>] -
Add support for byte-ranges to hftp
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-245'>HDFS-245</a>] -
Create symbolic links in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-447'>HDFS-447</a>] -
proxy to call LDAP for IP lookup and get user ID and directories,
validate requested URL
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-458'>HDFS-458</a>] -
Create target for 10 minute patch test build for hdfs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-459'>HDFS-459</a>] -
Job History Log Analyzer
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-461'>HDFS-461</a>] -
Analyzing file size distribution.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-492'>HDFS-492</a>] -
Expose corrupt replica/block information
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-503'>HDFS-503</a>] -
Implement erasure coding as a layer on HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-567'>HDFS-567</a>] -
Two contrib tools to facilitate searching for block history information
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-595'>HDFS-595</a>] -
FsPermission tests need to be updated for new octal configuration
parameter from HADOOP-6234
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-610'>HDFS-610</a>] -
Add support for FileContext
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-654'>HDFS-654</a>] -
HDFS needs to support new rename introduced for FileContext
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-702'>HDFS-702</a>] -
Add Hdfs Impl for the new file system interface
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-731'>HDFS-731</a>] -
Support new Syncable interface in HDFS
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-814'>HDFS-814</a>] -
Add an api to get the visible length of a DFSDataInputStream.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-905'>HDFS-905</a>] -
Make changes to HDFS for the new UserGroupInformation APIs (HADOOP-6299)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-935'>HDFS-935</a>] -
Real user in delegation token.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-984'>HDFS-984</a>] -
Delegation Tokens should be persisted in Namenode
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-985'>HDFS-985</a>] -
HDFS should issue multiple RPCs for listing a large directory
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-991'>HDFS-991</a>] -
Allow browsing the filesystem over http using delegation tokens
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-999'>HDFS-999</a>] -
Secondary namenode should login using kerberos if security is configured
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1091'>HDFS-1091</a>]
- Implement listStatus that returns an Iterator of FileStatus
+</li>
+</ul>
+
+<h3> Task
+</h3>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-256'>HDFS-256</a>] -
Split HDFS into sub project
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-574'>HDFS-574</a>] -
Hadoop Doc Split: HDFS Docs
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-651'>HDFS-651</a>] -
HDFS Docs - fix listing of docs in the doc menu
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-715'>HDFS-715</a>] -
Hadoop HDFS - Site Logo
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-869'>HDFS-869</a>] -
0.21.0 - snapshot incorrect dependency published in .pom files
+</li>
+</ul>
+
+<h3> Test
+</h3>
+<ul>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-409'>HDFS-409</a>] -
Add more access token tests
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-451'>HDFS-451</a>] -
Test DataTransferProtocol with fault injection
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-669'>HDFS-669</a>] -
Add unit tests framework (Mockito)
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-705'>HDFS-705</a>] -
Create an adapter to access some of package-private methods of DataNode
from tests
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-710'>HDFS-710</a>] -
Add actions with constraints to the pipeline fault injection tests
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-713'>HDFS-713</a>] -
Need to properly check the type of the test class from an aspect
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-714'>HDFS-714</a>] -
Create fault injection test for the new pipeline close
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-804'>HDFS-804</a>] -
New unit tests for concurrent lease recovery
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-813'>HDFS-813</a>] -
Enable the append test in TestReadWhileWriting
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-902'>HDFS-902</a>] -
Move RAID from HDFS to MR
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-907'>HDFS-907</a>] -
Add tests for getBlockLocations and totalLoad metrics.
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-919'>HDFS-919</a>] -
Create test to validate the BlocksVerified metric
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1043'>HDFS-1043</a>]
- Benchmark overhead of server-side group resolution of users
+</li>
+<li>[<a href='https://issues.apache.org/jira/browse/HDFS-1099'>HDFS-1099</a>]
- Add test for umask backward compatibility
+</li>
+</ul>
+
+
+</body>
+</html>
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