Author: jing9
Date: Tue Feb 25 18:42:14 2014
New Revision: 1571783
URL: http://svn.apache.org/r1571783
Log:
HDFS-5939. Merge change r1571782 from branch-2.
Modified:
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java
Modified:
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1571783&r1=1571782&r2=1571783&view=diff
==============================================================================
---
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
(original)
+++
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
Tue Feb 25 18:42:14 2014
@@ -88,6 +88,9 @@ Release 2.4.0 - UNRELEASED
HDFS-5935. New Namenode UI FS browser should throw smarter error messages.
(Travis Thompson via jing9)
+ HDFS-5939. WebHdfs returns misleading error code and logs nothing if trying
+ to create a file with no DNs in cluster. (Yongjun Zhang via jing9)
+
OPTIMIZATIONS
HDFS-5790. LeaseManager.findPath is very slow when many leases need
recovery
Modified:
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java?rev=1571783&r1=1571782&r2=1571783&view=diff
==============================================================================
---
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
(original)
+++
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
Tue Feb 25 18:42:14 2014
@@ -101,6 +101,7 @@ import org.apache.hadoop.hdfs.web.resour
import org.apache.hadoop.hdfs.web.resources.UserParam;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.ipc.Server;
+import org.apache.hadoop.net.NetworkTopology.InvalidTopologyException;
import org.apache.hadoop.net.NodeBase;
import org.apache.hadoop.security.Credentials;
import org.apache.hadoop.security.UserGroupInformation;
@@ -242,8 +243,12 @@ public class NamenodeWebHdfsMethods {
final String path, final HttpOpParam.Op op, final long openOffset,
final long blocksize,
final Param<?, ?>... parameters) throws URISyntaxException, IOException {
- final DatanodeInfo dn = chooseDatanode(namenode, path, op, openOffset,
- blocksize);
+ final DatanodeInfo dn;
+ try {
+ dn = chooseDatanode(namenode, path, op, openOffset, blocksize);
+ } catch (InvalidTopologyException ite) {
+ throw new IOException("Failed to find datanode, suggest to check cluster
health.", ite);
+ }
final String delegationQuery;
if (!UserGroupInformation.isSecurityEnabled()) {
Modified:
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java?rev=1571783&r1=1571782&r2=1571783&view=diff
==============================================================================
---
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java
(original)
+++
hadoop/common/branches/branch-2.4/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java
Tue Feb 25 18:42:14 2014
@@ -36,9 +36,10 @@ import org.apache.hadoop.fs.permission.F
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
-import org.apache.hadoop.hdfs.TestDFSClientRetries;
import
org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods;
+import org.apache.hadoop.hdfs.TestDFSClientRetries;
import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.test.GenericTestUtils;
import org.apache.log4j.Level;
import org.junit.Assert;
import org.junit.Test;
@@ -290,6 +291,31 @@ public class TestWebHDFS {
}
/**
+ * Test for catching "no datanode" IOException, when to create a file
+ * but datanode is not running for some reason.
+ */
+ @Test(timeout=300000)
+ public void testCreateWithNoDN() throws Exception {
+ MiniDFSCluster cluster = null;
+ final Configuration conf = WebHdfsTestUtil.createConf();
+ try {
+ cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
+ conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 1);
+ cluster.waitActive();
+ FileSystem fs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
+ WebHdfsFileSystem.SCHEME);
+ fs.create(new Path("/testnodatanode"));
+ Assert.fail("No exception was thrown");
+ } catch (IOException ex) {
+ GenericTestUtils.assertExceptionContains("Failed to find datanode", ex);
+ } finally {
+ if (cluster != null) {
+ cluster.shutdown();
+ }
+ }
+ }
+
+ /**
* WebHdfs should be enabled by default after HDFS-5532
*
* @throws Exception
