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HADOOP-7770. ViewFS getFileChecksum throws FileNotFoundException for files in /tmp and /user. Contributed by Ravi Prakash. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1190532 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jitendra Nath Pandey 2011-10-28 20:08:19 +00:00
parent c1e333f32f
commit dbe1e4de77
5 changed files with 54 additions and 3 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
View File

@ -82,6 +82,9 @@ Trunk (unreleased changes)
HADOOP-7769. TestJMXJsonServlet is failing. (tomwhite)
HADOOP-7770. ViewFS getFileChecksum throws FileNotFoundException for files in
/tmp and /user. (Ravi Prakash via jitendra)
OPTIMIZATIONS
HADOOP-7761. Improve the performance of raw comparisons. (todd)

2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java
View File

@ -318,7 +318,7 @@ public class ViewFileSystem extends FileSystem {
IOException {
InodeTree.ResolveResult<FileSystem> res =
fsState.resolve(getUriPath(f), true);
return res.targetFileSystem.getFileChecksum(f);
return res.targetFileSystem.getFileChecksum(res.remainingPath);
}
@Override

2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFs.java
View File

@ -316,7 +316,7 @@ public class ViewFs extends AbstractFileSystem {
UnresolvedLinkException, IOException {
InodeTree.ResolveResult<AbstractFileSystem> res =
fsState.resolve(getUriPath(f), true);
return res.targetFileSystem.getFileChecksum(f);
return res.targetFileSystem.getFileChecksum(res.remainingPath);
}
@Override

24
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/TestViewfsFileStatus.java
View File

@ -23,6 +23,7 @@ import java.io.IOException;
import java.net.URISyntaxException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileChecksum;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileUtil;
@ -33,6 +34,8 @@ import org.apache.hadoop.io.DataOutputBuffer;
import org.junit.AfterClass;
import org.junit.Test;
import org.mockito.Mockito;
import static org.junit.Assert.*;
/**
@ -81,6 +84,27 @@ public class TestViewfsFileStatus {
assertEquals(content.length, deSer.getLen());
}
// Tests that ViewFileSystem.getFileChecksum calls res.targetFileSystem
// .getFileChecksum with res.remainingPath and not with f
@Test
public void testGetFileChecksum() throws IOException {
FileSystem mockFS = Mockito.mock(FileSystem.class);
InodeTree.ResolveResult<FileSystem> res =
new InodeTree.ResolveResult<FileSystem>(null, mockFS , null,
new Path("someFile"));
@SuppressWarnings("unchecked")
InodeTree<FileSystem> fsState = Mockito.mock(InodeTree.class);
Mockito.when(fsState.resolve("/tmp/someFile", true)).thenReturn(res);
ViewFileSystem vfs = Mockito.mock(ViewFileSystem.class);
vfs.fsState = fsState;
Mockito.when(vfs.getFileChecksum(new Path("/tmp/someFile")))
.thenCallRealMethod();
vfs.getFileChecksum(new Path("/tmp/someFile"));
Mockito.verify(mockFS).getFileChecksum(new Path("someFile"));
}
@AfterClass
public static void cleanup() throws IOException {
FileUtil.fullyDelete(TEST_DIR);

26
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/ViewFsBaseTest.java
View File

@ -29,13 +29,15 @@ import java.net.URI;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.AbstractFileSystem;
import org.apache.hadoop.fs.BlockLocation;
import org.apache.hadoop.fs.FileContext;
import org.apache.hadoop.fs.FileContextTestHelper;
import org.apache.hadoop.fs.FileContextTestHelper.fileType;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FsConstants;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileContextTestHelper.fileType;
import org.apache.hadoop.fs.UnresolvedLinkException;
import org.apache.hadoop.fs.viewfs.ViewFs.MountPoint;
import org.apache.hadoop.security.AccessControlException;
import org.apache.hadoop.security.token.Token;
@ -43,6 +45,7 @@ import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
/**
@ -408,6 +411,27 @@ public class ViewFsBaseTest {
}
}
@Test
public void testGetFileChecksum() throws AccessControlException
, UnresolvedLinkException, IOException {
AbstractFileSystem mockAFS = Mockito.mock(AbstractFileSystem.class);
InodeTree.ResolveResult<AbstractFileSystem> res =
new InodeTree.ResolveResult<AbstractFileSystem>(null, mockAFS , null,
new Path("someFile"));
@SuppressWarnings("unchecked")
InodeTree<AbstractFileSystem> fsState = Mockito.mock(InodeTree.class);
Mockito.when(fsState.resolve(Mockito.anyString()
, Mockito.anyBoolean())).thenReturn(res);
ViewFs vfs = Mockito.mock(ViewFs.class);
vfs.fsState = fsState;
Mockito.when(vfs.getFileChecksum(new Path("/tmp/someFile")))
.thenCallRealMethod();
vfs.getFileChecksum(new Path("/tmp/someFile"));
Mockito.verify(mockAFS).getFileChecksum(new Path("someFile"));
}
@Test(expected=FileNotFoundException.class)
public void testgetFSonDanglingLink() throws IOException {
fcView.getFileStatus(new Path("/danglingLink"));