Apache
/
hadoop
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HDFS-7884. Fix NullPointerException in BlockSender when the generation stamp provided by the client is larger than the one stored in the datanode. Contributed by Brahma Reddy Battula

This commit is contained in:
Tsz-Wo Nicholas Sze 2015-03-24 13:49:17 +09:00
parent 4dfd84ec08
commit 87079cde7d
2 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
View File

@ -912,6 +912,10 @@ Release 2.7.0 - UNRELEASED
HDFS-7881. TestHftpFileSystem#testSeek fails in branch-2.
(Brahma Reddy Battula via aajisaka)
HDFS-7884. Fix NullPointerException in BlockSender when the generation stamp
provided by the client is larger than the one stored in the datanode.
(Brahma Reddy Battula via szetszwo)
BREAKDOWN OF HDFS-7584 SUBTASKS AND RELATED JIRAS
HDFS-7720. Quota by Storage Type API, tools and ClientNameNode

7
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockSender.java
View File

@ -246,6 +246,13 @@ class BlockSender implements java.io.Closeable {
if (replica.getGenerationStamp() < block.getGenerationStamp()) {
throw new IOException("Replica gen stamp < block genstamp, block="
+ block + ", replica=" + replica);
} else if (replica.getGenerationStamp() > block.getGenerationStamp()) {
if (DataNode.LOG.isDebugEnabled()) {
DataNode.LOG.debug("Bumping up the client provided"
+ " block's genstamp to latest " + replica.getGenerationStamp()
+ " for block " + block);
}
block.setGenerationStamp(replica.getGenerationStamp());
}
if (replicaVisibleLength < 0) {
throw new IOException("Replica is not readable, block="