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HDFS-8807. dfs.datanode.data.dir does not handle spaces between storageType and URI correctly. Contributed by Anu Engineer

This commit is contained in:
Tsz-Wo Nicholas Sze 2015-11-24 16:01:55 -08:00
parent 3a2f5d6329
commit 79e55fb47f
3 changed files with 25 additions and 9 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -814,6 +814,9 @@ Release 2.8.0 - UNRELEASED
HDFS-9314. Improve BlockPlacementPolicyDefault's picking of excess
replicas. (Xiao Chen via mingma)
HDFS-8807. dfs.datanode.data.dir does not handle spaces between
storageType and URI correctly. (Anu Engineer via szetszwo)
OPTIMIZATIONS
HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/StorageLocation.java
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@ -87,7 +87,7 @@ public static StorageLocation parse(String rawLocation)
if (matcher.matches()) {
String classString = matcher.group(1);
location = matcher.group(2);
location = matcher.group(2).trim();
if (!classString.isEmpty()) {
storageType =
StorageType.valueOf(StringUtils.toUpperCase(classString));

29
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataDirs.java
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@ -36,7 +36,7 @@
public class TestDataDirs {
@Test (timeout = 30000)
@Test(timeout = 30000)
public void testDataDirParsing() throws Throwable {
Configuration conf = new Configuration();
List<StorageLocation> locations;
@ -46,12 +46,16 @@ public void testDataDirParsing() throws Throwable {
File dir3 = new File("/dir3");
File dir4 = new File("/dir4");
File dir5 = new File("/dir5");
File dir6 = new File("/dir6");
// Verify that a valid string is correctly parsed, and that storage
// type is not case-sensitive
String locations1 = "[disk]/dir0,[DISK]/dir1,[sSd]/dir2,[disK]/dir3,[ram_disk]/dir4";
// type is not case-sensitive and we are able to handle white-space between
// storage type and URI.
String locations1 = "[disk]/dir0,[DISK]/dir1,[sSd]/dir2,[disK]/dir3," +
"[ram_disk]/dir4,[disk]/dir5, [disk] /dir6, [disk] ";
conf.set(DFS_DATANODE_DATA_DIR_KEY, locations1);
locations = DataNode.getStorageLocations(conf);
assertThat(locations.size(), is(5));
assertThat(locations.size(), is(8));
assertThat(locations.get(0).getStorageType(), is(StorageType.DISK));
assertThat(locations.get(0).getUri(), is(dir0.toURI()));
assertThat(locations.get(1).getStorageType(), is(StorageType.DISK));
@ -62,6 +66,14 @@ public void testDataDirParsing() throws Throwable {
assertThat(locations.get(3).getUri(), is(dir3.toURI()));
assertThat(locations.get(4).getStorageType(), is(StorageType.RAM_DISK));
assertThat(locations.get(4).getUri(), is(dir4.toURI()));
assertThat(locations.get(5).getStorageType(), is(StorageType.DISK));
assertThat(locations.get(5).getUri(), is(dir5.toURI()));
assertThat(locations.get(6).getStorageType(), is(StorageType.DISK));
assertThat(locations.get(6).getUri(), is(dir6.toURI()));
// not asserting the 8th URI since it is incomplete and it in the
// test set to make sure that we don't fail if we get URIs like that.
assertThat(locations.get(7).getStorageType(), is(StorageType.DISK));
// Verify that an unrecognized storage type result in an exception.
String locations2 = "[BadMediaType]/dir0,[ssd]/dir1,[disk]/dir2";
@ -69,7 +81,7 @@ public void testDataDirParsing() throws Throwable {
try {
locations = DataNode.getStorageLocations(conf);
fail();
} catch(IllegalArgumentException iae) {
} catch (IllegalArgumentException iae) {
DataNode.LOG.info("The exception is expected.", iae);
}
@ -85,12 +97,13 @@ public void testDataDirParsing() throws Throwable {
assertThat(locations.get(1).getUri(), is(dir1.toURI()));
}
@Test (timeout = 30000)
@Test(timeout = 30000)
public void testDataDirValidation() throws Throwable {
DataNodeDiskChecker diskChecker = mock(DataNodeDiskChecker.class);
doThrow(new IOException()).doThrow(new IOException()).doNothing()
.when(diskChecker).checkDir(any(LocalFileSystem.class), any(Path.class));
.when(diskChecker)
.checkDir(any(LocalFileSystem.class), any(Path.class));
LocalFileSystem fs = mock(LocalFileSystem.class);
AbstractList<StorageLocation> locations = new ArrayList<StorageLocation>();