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HDFS-7741. Remove unnecessary synchronized in FSDataInputStream and HdfsDataInputStream. (yliu)

This commit is contained in:
yliu 2015-02-06 06:31:03 +08:00
parent 9d91069118
commit 7b10ef0c3b
3 changed files with 5 additions and 2 deletions
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2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FSDataInputStream.java
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@ -58,7 +58,7 @@ public class FSDataInputStream extends DataInputStream
* @param desired offset to seek to * @param desired offset to seek to
*/ */
@Override @Override
public synchronized void seek(long desired) throws IOException { public void seek(long desired) throws IOException {
((Seekable)in).seek(desired); ((Seekable)in).seek(desired);
} }

3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -851,6 +851,9 @@ Release 2.7.0 - UNRELEASED
HDFS-7698. Fix locking on HDFS read statistics and add a method for HDFS-7698. Fix locking on HDFS read statistics and add a method for
clearing them. (Colin P. McCabe via yliu) clearing them. (Colin P. McCabe via yliu)
HDFS-7741. Remove unnecessary synchronized in FSDataInputStream and
HdfsDataInputStream. (yliu)
Release 2.6.1 - UNRELEASED Release 2.6.1 - UNRELEASED
INCOMPATIBLE CHANGES INCOMPATIBLE CHANGES

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/client/HdfsDataInputStream.java
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@ -83,7 +83,7 @@ public class HdfsDataInputStream extends FSDataInputStream {
/** /**
* Get the collection of blocks that has already been located. * Get the collection of blocks that has already been located.
*/ */
public synchronized List<LocatedBlock> getAllBlocks() throws IOException { public List<LocatedBlock> getAllBlocks() throws IOException {
return getDFSInputStream().getAllBlocks(); return getDFSInputStream().getAllBlocks();
} }