merge the append branch change log to the branch 0.21 change log.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hdfs/branches/HDFS-265@820439 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/CHANGES.txt b/CHANGES.txt
index df49b2c..db1441b 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,108 +1,5 @@
Hadoop HDFS Change Log
-Append branch (unreleased changes)
-
- INCOMPATIBLE CHANGES
-
- HDFS-544. Add a "rbw" subdir to DataNode data directory. (hairong)
-
- HDFS-576. Block report includes under-construction replicas. (shv)
-
- HDFS-636. SafeMode counts complete blocks only. (shv)
-
- HDFS-644. Lease recovery, concurrency support. (shv)
-
- HDFS-570. Get last block length from a data-node when opening a file
- being written to. (Tsz Wo (Nicholas), SZE via shv)
-
- HDFS-657. Remove unused legacy data-node protocol methods. (shv)
-
- HDFS-658. Block recovery for primary data-node. (shv)
-
- NEW FEATURES
-
- HDFS-536. Support hflush at DFSClient. (hairong)
-
- HDFS-517. Introduce BlockInfoUnderConstruction to reflect block replica
- states while writing. (shv)
-
- HDFS-565. Introduce block committing logic during new block allocation
- and file close. (shv)
-
- HDFS-537. DataNode exposes a replica's meta info to BlockReceiver for the
- support of dfs writes/hflush. It also updates a replica's bytes received,
- bytes on disk, and bytes acked after receiving a packet. (hairong)
-
- HDFS-585. Datanode should serve up to visible length of a replica for read
- requests. (szetszwo)
-
- HDFS-604. Block report processing for append. (shv)
-
- HDFS-619. Support replica recovery initialization in datanode for the new
- append design. (szetszwo)
-
- HDFS-592. Allow clients to fetch a new generation stamp from NameNode for
- pipeline recovery. (hairong)
-
- HDFS-624. Support a new algorithm for pipeline recovery and pipeline setup
- for append. (hairong)
-
- HDFS-627. Support replica update in data-node.
- (Tsz Wo (Nicholas), SZE and Hairong Kuang via shv)
-
- HDFS-642. Support pipeline close and close error recovery. (hairong)
-
- IMPROVEMENTS
-
- HDFS-509. Redesign DataNode volumeMap to include all types of Replicas.
- (hairong)
-
- HDFS-562. Add a test for NameNode.getBlockLocations(..) to check read from
- un-closed file. (szetszwo)
-
- HDFS-543. Break FSDatasetInterface#writToBlock() into writeToRemporary,
- writeToRBW, ad append. (hairong)
-
- HDFS-603. Add a new interface, Replica, which is going to replace the use
- of Block in datanode. (szetszwo)
-
- HDFS-589. Change block write protocol to support pipeline recovery.
- (hairong)
-
- HDFS-652. Replace BlockInfo.isUnderConstruction() with isComplete() (shv)
-
- HDFS-648. Change some methods in AppendTestUtil to public. (Konstantin
- Boudnik via szetszwo)
-
- HDFS-662. Unnecessary info message from DFSClient. (hairong)
-
- HDFS-518. Create new tests for Append's hflush. (Konstantin Boudnik
- via szetszwo)
-
- BUG FIXES
-
- HDFS-547. TestHDFSFileSystemContract#testOutputStreamClosedTwice
- sometimes fails with CloseByInterruptException. (hairong)
-
- HDFS-588. Fix TestFiDataTransferProtocol and TestAppend2 failures. (shv)
-
- HDFS-550. DataNode restarts may introduce corrupt/duplicated/lost replicas
- when handling detached replicas. (hairong)
-
- HDFS-659. If the the last block is not complete, update its length with
- one of its replica's length stored in datanode. (szetszwo)
-
- HDFS-649. Check null pointers for DataTransferTest. (Konstantin Boudnik
- via szetszwo)
-
- HDFS-661. DataNode upgrade fails on non-existant current directory.
- (hairong)
-
- HDFS-597. Mofication introduced by HDFS-537 breakes an advice binding in
- FSDatasetAspects. (Konstantin Boudnik via szetszwo)
-
- HDFS-665. TestFileAppend2 sometimes hangs. (hairong)
-
Trunk (unreleased changes)
INCOMPATIBLE CHANGES
@@ -114,6 +11,21 @@
HDFS-602. DistributedFileSystem mkdirs throws FileAlreadyExistsException
instead of FileNotFoundException. (Boris Shkolnik via suresh)
+ HDFS-544. Add a "rbw" subdir to DataNode data directory. (hairong)
+
+ HDFS-576. Block report includes under-construction replicas. (shv)
+
+ HDFS-636. SafeMode counts complete blocks only. (shv)
+
+ HDFS-644. Lease recovery, concurrency support. (shv)
+
+ HDFS-570. Get last block length from a data-node when opening a file
+ being written to. (Tsz Wo (Nicholas), SZE via shv)
+
+ HDFS-657. Remove unused legacy data-node protocol methods. (shv)
+
+ HDFS-658. Block recovery for primary data-node. (shv)
+
NEW FEATURES
HDFS-436. Introduce AspectJ framework for HDFS code and tests.
@@ -152,6 +64,37 @@
HDFS-610. Support o.a.h.fs.FileContext. (Sanjay Radia via szetszwo)
+ HDFS-536. Support hflush at DFSClient. (hairong)
+
+ HDFS-517. Introduce BlockInfoUnderConstruction to reflect block replica
+ states while writing. (shv)
+
+ HDFS-565. Introduce block committing logic during new block allocation
+ and file close. (shv)
+
+ HDFS-537. DataNode exposes a replica's meta info to BlockReceiver for the
+ support of dfs writes/hflush. It also updates a replica's bytes received,
+ bytes on disk, and bytes acked after receiving a packet. (hairong)
+
+ HDFS-585. Datanode should serve up to visible length of a replica for read
+ requests. (szetszwo)
+
+ HDFS-604. Block report processing for append. (shv)
+
+ HDFS-619. Support replica recovery initialization in datanode for the new
+ append design. (szetszwo)
+
+ HDFS-592. Allow clients to fetch a new generation stamp from NameNode for
+ pipeline recovery. (hairong)
+
+ HDFS-624. Support a new algorithm for pipeline recovery and pipeline setup
+ for append. (hairong)
+
+ HDFS-627. Support replica update in data-node.
+ (Tsz Wo (Nicholas), SZE and Hairong Kuang via shv)
+
+ HDFS-642. Support pipeline close and close error recovery. (hairong)
+
IMPROVEMENTS
HDFS-381. Remove blocks from DataNode maps when corresponding file
@@ -276,6 +219,31 @@
HDFS-598. Eclipse launch task for HDFS. (Eli Collins via tomwhite)
+ HDFS-509. Redesign DataNode volumeMap to include all types of Replicas.
+ (hairong)
+
+ HDFS-562. Add a test for NameNode.getBlockLocations(..) to check read from
+ un-closed file. (szetszwo)
+
+ HDFS-543. Break FSDatasetInterface#writToBlock() into writeToRemporary,
+ writeToRBW, ad append. (hairong)
+
+ HDFS-603. Add a new interface, Replica, which is going to replace the use
+ of Block in datanode. (szetszwo)
+
+ HDFS-589. Change block write protocol to support pipeline recovery.
+ (hairong)
+
+ HDFS-652. Replace BlockInfo.isUnderConstruction() with isComplete() (shv)
+
+ HDFS-648. Change some methods in AppendTestUtil to public. (Konstantin
+ Boudnik via szetszwo)
+
+ HDFS-662. Unnecessary info message from DFSClient. (hairong)
+
+ HDFS-518. Create new tests for Append's hflush. (Konstantin Boudnik
+ via szetszwo)
+
BUG FIXES
HDFS-76. Better error message to users when commands fail because of
@@ -373,6 +341,28 @@
HDFS-637. DataNode sends a Success ack when block write fails. (hairong)
+ HDFS-547. TestHDFSFileSystemContract#testOutputStreamClosedTwice
+ sometimes fails with CloseByInterruptException. (hairong)
+
+ HDFS-588. Fix TestFiDataTransferProtocol and TestAppend2 failures. (shv)
+
+ HDFS-550. DataNode restarts may introduce corrupt/duplicated/lost replicas
+ when handling detached replicas. (hairong)
+
+ HDFS-659. If the the last block is not complete, update its length with
+ one of its replica's length stored in datanode. (szetszwo)
+
+ HDFS-649. Check null pointers for DataTransferTest. (Konstantin Boudnik
+ via szetszwo)
+
+ HDFS-661. DataNode upgrade fails on non-existant current directory.
+ (hairong)
+
+ HDFS-597. Mofication introduced by HDFS-537 breakes an advice binding in
+ FSDatasetAspects. (Konstantin Boudnik via szetszwo)
+
+ HDFS-665. TestFileAppend2 sometimes hangs. (hairong)
+
Release 0.20.1 - 2009-09-01
IMPROVEMENTS
