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HADOOP-7997. svn merge -c 1236456 from trunk 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1236461 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Eli Collins 2012-01-27 00:14:31 +00:00
parent 890abf867c
commit 1f235fbb04
3 changed files with 21 additions and 1 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
View File

@ -164,6 +164,9 @@ Release 0.23.1 - Unreleased
HADOOP-7981. Improve documentation for org.apache.hadoop.io.compress.
Decompressor.getRemaining (Jonathan Eagles via mahadev)
HADOOP-7997. SequenceFile.createWriter(...createParent...) no
longer works on existing file. (Gregory Chanan via eli)
Release 0.23.0 - 2011-11-01
INCOMPATIBLE CHANGES

2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/SequenceFile.java
View File

@ -467,7 +467,7 @@ public class SequenceFile {
Metadata metadata) throws IOException {
return createWriter(FileContext.getFileContext(fs.getUri(), conf),
conf, name, keyClass, valClass, compressionType, codec,
metadata, EnumSet.of(CreateFlag.CREATE),
metadata, EnumSet.of(CreateFlag.CREATE,CreateFlag.OVERWRITE),
CreateOpts.bufferSize(bufferSize),
createParent ? CreateOpts.createParent()
: CreateOpts.donotCreateParent(),

17
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/TestSequenceFile.java
View File

@ -517,6 +517,23 @@ public class TestSequenceFile extends TestCase {
assertTrue("InputStream for " + path + " should have been closed.", openedFile[0].isClosed());
}
/**
* Test that makes sure createWriter succeeds on a file that was
* already created
* @throws IOException
*/
public void testCreateWriterOnExistingFile() throws IOException {
Configuration conf = new Configuration();
FileSystem fs = FileSystem.getLocal(conf);
Path name = new Path(new Path(System.getProperty("test.build.data","."),
"createWriterOnExistingFile") , "file");
fs.create(name);
SequenceFile.createWriter(fs, conf, name, RandomDatum.class,
RandomDatum.class, 512, (short) 1, 4096, false,
CompressionType.NONE, null, new Metadata());
}
public void testRecursiveSeqFileCreate() throws IOException {
Configuration conf = new Configuration();
FileSystem fs = FileSystem.getLocal(conf);