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svn merge -c 1575021 from trunk for HDFS-6060. NameNode should not check DataNode layout version 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1576149 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Tsz-wo Sze 2014-03-11 00:12:57 +00:00
parent bb7e14902b
commit a42d3356db
2 changed files with 2 additions and 15 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -643,6 +643,8 @@ HDFS-5535 subtasks:
HDFS-6041. Downgrade/Finalize should rename the rollback image instead of
purging it. (jing9)
HDFS-6060. NameNode should not check DataNode layout version (brandonli)
Release 2.3.1 - UNRELEASED
INCOMPATIBLE CHANGES

15
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
View File

@ -105,7 +105,6 @@ import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifie
import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.NamenodeRole;
import org.apache.hadoop.hdfs.server.common.IncorrectVersionException;
import org.apache.hadoop.hdfs.server.datanode.DataNodeLayoutVersion;
import org.apache.hadoop.hdfs.server.namenode.NameNode.OperationCategory;
import org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics;
import org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods;
@ -1097,20 +1096,6 @@ class NameNodeRpcServer implements NamenodeProtocols {
+ " but the expected ID is " + expectedID);
throw new UnregisteredNodeException(nodeReg);
}
// verify layout version if there is no rolling upgrade.
if (!namesystem.isRollingUpgrade()) {
final int lv = nodeReg.getVersion();
final int expectedLV = nodeReg instanceof NamenodeRegistration?
NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION
: DataNodeLayoutVersion.CURRENT_LAYOUT_VERSION;
if (expectedLV != nodeReg.getVersion()) {
LOG.warn("Layout versions mismatched: the "
+ nodeReg.getClass().getSimpleName() + " LV is " + lv
+ " but the expected LV is " + expectedLV);
throw new UnregisteredNodeException(nodeReg);
}
}
}