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HDFS-11263. ClassCastException when we use Bzipcodec for Fsimage compression. Contributed by Brahma Reddy Battula.

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(cherry picked from commit 1b401f6a734df4e23a79b3bd89c816a1fc0de574)
This commit is contained in:
Brahma Reddy Battula 2016-12-20 20:54:03 +05:30
parent bbf380a493
commit 3e0bd9951f
3 changed files with 14 additions and 4 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -210,6 +210,9 @@ Release 2.7.4 - UNRELEASED
HDFS-11160. VolumeScanner reports write-in-progress replicas as corrupt
incorrectly. Contributed by Wei-Chiu Chuang and Yongjun Zhang.
HDFS-11263. ClassCastException when we use Bzipcodec for Fsimage
compression. (Brahma Reddy Battula)
Release 2.7.3 - 2016-08-25
INCOMPATIBLE CHANGES

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormatProtobuf.java
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@ -40,6 +40,7 @@
import java.util.Map.Entry;
import java.util.Set;
import org.apache.hadoop.io.compress.CompressionOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.classification.InterfaceAudience;
@ -62,7 +63,6 @@
import org.apache.hadoop.hdfs.util.MD5FileUtils;
import org.apache.hadoop.io.MD5Hash;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.io.compress.CompressorStream;
import org.apache.hadoop.util.LimitInputStream;
import org.apache.hadoop.util.Time;
@ -401,7 +401,7 @@ public void commitSection(FileSummary.Builder summary, SectionName name)
private void flushSectionOutputStream() throws IOException {
if (codec != null) {
((CompressorStream) sectionOutputStream).finish();
((CompressionOutputStream) sectionOutputStream).finish();
}
sectionOutputStream.flush();
}

11
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSImage.java
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@ -62,8 +62,15 @@ public void testPersist() throws IOException {
public void testCompression() throws IOException {
Configuration conf = new Configuration();
conf.setBoolean(DFSConfigKeys.DFS_IMAGE_COMPRESS_KEY, true);
conf.set(DFSConfigKeys.DFS_IMAGE_COMPRESSION_CODEC_KEY,
"org.apache.hadoop.io.compress.GzipCodec");
setCompressCodec(conf, "org.apache.hadoop.io.compress.DefaultCodec");
setCompressCodec(conf, "org.apache.hadoop.io.compress.GzipCodec");
setCompressCodec(conf, "org.apache.hadoop.io.compress.BZip2Codec");
setCompressCodec(conf, "org.apache.hadoop.io.compress.Lz4Codec");
}
private void setCompressCodec(Configuration conf, String compressCodec)
throws IOException {
conf.set(DFSConfigKeys.DFS_IMAGE_COMPRESSION_CODEC_KEY, compressCodec);
testPersistHelper(conf);
}