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HDFS-10795. Fix an error in ReaderStrategy#ByteBufferStrategy. Contributed by Sammi Chen

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This commit is contained in:
Kai Zheng 2016-08-27 10:54:25 +08:00
parent 81485dbfc1
commit f4a21d3aba
1 changed files with 1 additions and 1 deletions
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hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/ReaderStrategy.java
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@ -181,7 +181,7 @@ public int readFromBlock(BlockReader blockReader,
int length) throws IOException { int length) throws IOException {
ByteBuffer tmpBuf = readBuf.duplicate(); ByteBuffer tmpBuf = readBuf.duplicate();
tmpBuf.limit(tmpBuf.position() + length); tmpBuf.limit(tmpBuf.position() + length);
int nRead = blockReader.read(readBuf.slice()); int nRead = blockReader.read(tmpBuf);
// Only when data are read, update the position // Only when data are read, update the position
if (nRead > 0) { if (nRead > 0) {
readBuf.position(readBuf.position() + nRead); readBuf.position(readBuf.position() + nRead);