Author: llu
Date: Sun Dec 16 00:39:17 2012
New Revision: 1422430
URL: http://svn.apache.org/viewvc?rev=1422430&view=rev
Log:
HADOOP-9041. FsUrlStreamHandlerFactory could cause an infinite loop in
FileSystem initialization. (Yanbo Liang and Radim Kolar via llu)
Added:
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFileSystemInitialization.java
Modified:
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FsUrlStreamHandlerFactory.java
Modified:
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FsUrlStreamHandlerFactory.java
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FsUrlStreamHandlerFactory.java?rev=1422430&r1=1422429&r2=1422430&view=diff
==============================================================================
---
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FsUrlStreamHandlerFactory.java
(original)
+++
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FsUrlStreamHandlerFactory.java
Sun Dec 16 00:39:17 2012
@@ -56,6 +56,12 @@ public class FsUrlStreamHandlerFactory i
public FsUrlStreamHandlerFactory(Configuration conf) {
this.conf = new Configuration(conf);
+ // force init of FileSystem code to avoid HADOOP-9041
+ try {
+ FileSystem.getFileSystemClass("file", conf);
+ } catch (IOException io) {
+ throw new RuntimeException(io);
+ }
this.handler = new FsUrlStreamHandler(this.conf);
}
Added:
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFileSystemInitialization.java
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFileSystemInitialization.java?rev=1422430&view=auto
==============================================================================
---
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFileSystemInitialization.java
(added)
+++
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFileSystemInitialization.java
Sun Dec 16 00:39:17 2012
@@ -0,0 +1,46 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.fs;
+
+import org.apache.hadoop.conf.Configuration;
+
+import java.io.IOException;
+import java.net.URL;
+
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class TestFileSystemInitialization {
+
+ /**
+ * Check if FileSystem can be properly initialized if URLStreamHandlerFactory
+ * is registered.
+ */
+ @Test
+ public void testInitializationWithRegisteredStreamFactory() {
+ Configuration conf = new Configuration();
+ URL.setURLStreamHandlerFactory(new FsUrlStreamHandlerFactory(conf));
+ try {
+ FileSystem.getFileSystemClass("file", conf);
+ }
+ catch (IOException ok) {
+ // we might get an exception but this not related to infinite loop
problem
+ assertFalse(false);
+ }
+ }
+}
