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HDFS-4278. Log an ERROR when DFS_BLOCK_ACCESS_TOKEN_ENABLE config is disabled but security is turned on. Contributed by Kousuke Saruta. (harsh) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1504790 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Harsh J 2013-07-19 07:05:57 +00:00
parent 089b7e63e7
commit f6b0fa487b
2 changed files with 10 additions and 0 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -24,6 +24,9 @@ Release 2.3.0 - UNRELEASED
report to a configurable value. (Aaron T. Myers via Colin Patrick
McCabe)
HDFS-4278. Log an ERROR when DFS_BLOCK_ACCESS_TOKEN_ENABLE config is
disabled but security is turned on. (Kousuke Saruta via harsh)
OPTIMIZATIONS
BUG FIXES

7
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
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@ -72,6 +72,7 @@ import org.apache.hadoop.hdfs.server.protocol.KeyUpdateCommand;
import org.apache.hadoop.hdfs.server.protocol.ReceivedDeletedBlockInfo;
import org.apache.hadoop.hdfs.util.LightWeightLinkedSet;
import org.apache.hadoop.net.Node;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.util.Daemon;
import org.apache.hadoop.util.Time;
@ -322,6 +323,12 @@ public class BlockManager {
LOG.info(DFSConfigKeys.DFS_BLOCK_ACCESS_TOKEN_ENABLE_KEY + "=" + isEnabled);
if (!isEnabled) {
if (UserGroupInformation.isSecurityEnabled()) {
LOG.error("Security is enabled but block access tokens " +
"(via " + DFSConfigKeys.DFS_BLOCK_ACCESS_TOKEN_ENABLE_KEY + ") " +
"aren't enabled. This may cause issues " +
"when clients attempt to talk to a DataNode.");
}
return null;
}