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Posted to common-commits@hadoop.apache.org by ar...@apache.org on 2017/08/25 19:04:00 UTC
[2/3] hadoop git commit: HDFS-12319. DirectoryScanner will throw
IllegalStateException when Multiple BP's are present. Contributed by Brahma
Reddy Battula.
HDFS-12319. DirectoryScanner will throw IllegalStateException when Multiple BP's are present. Contributed by Brahma Reddy Battula.
Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/4b85d38f
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/4b85d38f
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/4b85d38f
Branch: refs/heads/branch-2.8.2
Commit: 4b85d38f6052ed59b848f9a8f5caa5be2a1595f8
Parents: 86db22f
Author: Arpit Agarwal <ar...@apache.org>
Authored: Fri Aug 25 10:41:52 2017 -0700
Committer: Arpit Agarwal <ar...@apache.org>
Committed: Fri Aug 25 12:03:39 2017 -0700
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.../hdfs/server/datanode/DirectoryScanner.java | 5 +-
.../server/datanode/TestDirectoryScanner.java | 66 ++++++++++++++++++--
2 files changed, 62 insertions(+), 9 deletions(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b85d38f/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DirectoryScanner.java
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diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DirectoryScanner.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DirectoryScanner.java
index 64fa94e..f96386a 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DirectoryScanner.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DirectoryScanner.java
@@ -815,13 +815,12 @@ public class DirectoryScanner implements Runnable {
public ScanInfoPerBlockPool call() throws IOException {
String[] bpList = volume.getBlockPoolList();
ScanInfoPerBlockPool result = new ScanInfoPerBlockPool(bpList.length);
+ perfTimer.start();
+ throttleTimer.start();
for (String bpid : bpList) {
LinkedList<ScanInfo> report = new LinkedList<>();
File bpFinalizedDir = volume.getFinalizedDir(bpid);
- perfTimer.start();
- throttleTimer.start();
-
try {
result.put(bpid,
compileReport(volume, bpFinalizedDir, bpFinalizedDir, report));
http://git-wip-us.apache.org/repos/asf/hadoop/blob/4b85d38f/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
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diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
index 35bd7e8..c7fa7f0 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
@@ -47,16 +47,19 @@ import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.StorageType;
-import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.DFSClient;
+import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.DFSTestUtil;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.hdfs.MiniDFSNNTopology;
import org.apache.hadoop.hdfs.protocol.Block;
import org.apache.hadoop.hdfs.protocol.HdfsConstants;
import org.apache.hadoop.hdfs.protocol.LocatedBlock;
-import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi;
+import org.apache.hadoop.hdfs.server.datanode.checker.VolumeCheckResult;
+import org.apache.hadoop.hdfs.server.datanode.fsdataset.DataNodeVolumeMetrics;
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi.FsVolumeReferences;
+import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi;
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeReference;
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi;
import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetTestUtil;
@@ -307,15 +310,22 @@ public class TestDirectoryScanner {
missingMemoryBlocks, mismatchBlocks, 0);
}
- private void scan(long totalBlocks, int diffsize, long missingMetaFile, long missingBlockFile,
- long missingMemoryBlocks, long mismatchBlocks, long duplicateBlocks) throws IOException {
+ private void scan(long totalBlocks, int diffsize, long missingMetaFile,
+ long missingBlockFile, long missingMemoryBlocks, long mismatchBlocks,
+ long duplicateBlocks) throws IOException {
scanner.reconcile();
-
+ verifyStats(totalBlocks, diffsize, missingMetaFile, missingBlockFile,
+ missingMemoryBlocks, mismatchBlocks, duplicateBlocks);
+ }
+
+ private void verifyStats(long totalBlocks, int diffsize, long missingMetaFile,
+ long missingBlockFile, long missingMemoryBlocks, long mismatchBlocks,
+ long duplicateBlocks) {
assertTrue(scanner.diffs.containsKey(bpid));
LinkedList<DirectoryScanner.ScanInfo> diff = scanner.diffs.get(bpid);
assertTrue(scanner.stats.containsKey(bpid));
DirectoryScanner.Stats stats = scanner.stats.get(bpid);
-
+
assertEquals(diffsize, diff.size());
assertEquals(totalBlocks, stats.totalBlocks);
assertEquals(missingMetaFile, stats.missingMetaFile);
@@ -991,4 +1001,48 @@ public class TestDirectoryScanner {
cluster.shutdown();
}
}
+
+ @Test
+ public void testDirectoryScannerInFederatedCluster() throws Exception {
+ //Create Federated cluster with two nameservices and one DN
+ try (MiniDFSCluster cluster = new MiniDFSCluster.Builder(CONF)
+ .nnTopology(MiniDFSNNTopology.simpleHAFederatedTopology(2))
+ .numDataNodes(1).build()) {
+ cluster.waitActive();
+ cluster.transitionToActive(1);
+ cluster.transitionToActive(3);
+ DataNode dataNode = cluster.getDataNodes().get(0);
+ fds = DataNodeTestUtils.getFSDataset(cluster.getDataNodes().get(0));
+ //Create one block in first nameservice
+ FileSystem fs = cluster.getFileSystem(1);
+ int bp1Files = 1;
+ writeFile(fs, bp1Files);
+ //Create two blocks in second nameservice
+ FileSystem fs2 = cluster.getFileSystem(3);
+ int bp2Files = 2;
+ writeFile(fs2, bp2Files);
+ //Call the Directory scanner
+ scanner = new DirectoryScanner(dataNode, fds, CONF);
+ scanner.setRetainDiffs(true);
+ scanner.reconcile();
+ //Check blocks in corresponding BP
+ bpid = cluster.getNamesystem(1).getBlockPoolId();
+ verifyStats(bp1Files, 0, 0, 0, 0, 0, 0);
+ bpid = cluster.getNamesystem(3).getBlockPoolId();
+ verifyStats(bp2Files, 0, 0, 0, 0, 0, 0);
+ } finally {
+ if (scanner != null) {
+ scanner.shutdown();
+ scanner = null;
+ }
+ }
+ }
+
+ private void writeFile(FileSystem fs, int numFiles) throws IOException {
+ final String fileName = "/" + GenericTestUtils.getMethodName();
+ final Path filePath = new Path(fileName);
+ for (int i = 0; i < numFiles; i++) {
+ DFSTestUtil.createFile(fs, filePath, 1, (short) 1, 0);
+ }
+ }
}
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