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HDFS-3351. NameNode#initializeGenericKeys should always set fs.defaultFS regardless of whether HA or Federation is enabled. Contributed by Aaron T. Myers. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1333299 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2012-05-03 03:00:10 +00:00
parent cbc2424290
commit 470b1197be
3 changed files with 33 additions and 13 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -589,6 +589,9 @@ Release 2.0.0 - UNRELEASED
HDFS-3330. If GetImageServlet throws an Error or RTE, response should not
have HTTP "OK" status. (todd)
HDFS-3351. NameNode#initializeGenericKeys should always set fs.defaultFS
regardless of whether HA or Federation is enabled. (atm)
BREAKDOWN OF HDFS-1623 SUBTASKS
HDFS-2179. Add fencing framework and mechanisms for NameNode HA. (todd)

24
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
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@ -1130,20 +1130,18 @@ public class NameNode {
*/
public static void initializeGenericKeys(Configuration conf,
String nameserviceId, String namenodeId) {
if ((nameserviceId == null || nameserviceId.isEmpty()) &&
(namenodeId == null || namenodeId.isEmpty())) {
return;
if ((nameserviceId != null && !nameserviceId.isEmpty()) ||
(namenodeId != null && !namenodeId.isEmpty())) {
if (nameserviceId != null) {
conf.set(DFS_FEDERATION_NAMESERVICE_ID, nameserviceId);
}
if (namenodeId != null) {
conf.set(DFS_HA_NAMENODE_ID_KEY, namenodeId);
}
DFSUtil.setGenericConf(conf, nameserviceId, namenodeId,
NAMESERVICE_SPECIFIC_KEYS);
}
if (nameserviceId != null) {
conf.set(DFS_FEDERATION_NAMESERVICE_ID, nameserviceId);
}
if (namenodeId != null) {
conf.set(DFS_HA_NAMENODE_ID_KEY, namenodeId);
}
DFSUtil.setGenericConf(conf, nameserviceId, namenodeId,
NAMESERVICE_SPECIFIC_KEYS);
if (conf.get(DFS_NAMENODE_RPC_ADDRESS_KEY) != null) {
URI defaultUri = URI.create(HdfsConstants.HDFS_URI_SCHEME + "://"
+ conf.get(DFS_NAMENODE_RPC_ADDRESS_KEY));

19
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSUtil.java
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@ -319,6 +319,25 @@ public class TestDFSUtil {
}
}
/**
* Ensure that fs.defaultFS is set in the configuration even if neither HA nor
* Federation is enabled.
*
* Regression test for HDFS-3351.
*/
@Test
public void testConfModificationNoFederationOrHa() {
final HdfsConfiguration conf = new HdfsConfiguration();
String nsId = null;
String nnId = null;
conf.set(DFS_NAMENODE_RPC_ADDRESS_KEY, "localhost:1234");
assertFalse("hdfs://localhost:1234".equals(conf.get(FS_DEFAULT_NAME_KEY)));
NameNode.initializeGenericKeys(conf, nsId, nnId);
assertEquals("hdfs://localhost:1234", conf.get(FS_DEFAULT_NAME_KEY));
}
/**
* Regression test for HDFS-2934.
*/