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HDFS-15716. WaitforReplication in TestUpgradeDomainBlockPlacementPolicy (#2528) Contributed by Ahmed Hussein

This commit is contained in:
Jim Brennan 2020-12-08 20:32:31 +00:00
parent 8ddd85b0e6
commit 8af247df85
1 changed files with 37 additions and 36 deletions
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69
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestUpgradeDomainBlockPlacementPolicy.java
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@ -17,16 +17,12 @@
*/
package org.apache.hadoop.hdfs.server.namenode;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.fs.permission.PermissionStatus;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.DFSTestUtil;
import org.apache.hadoop.hdfs.HdfsConfiguration;
@ -41,11 +37,11 @@ import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyWithUpg
import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementStatus;
import org.apache.hadoop.hdfs.server.blockmanagement.CombinedHostFileManager;
import org.apache.hadoop.hdfs.server.blockmanagement.HostConfigManager;
import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols;
import org.apache.hadoop.hdfs.util.HostsFileWriter;
import org.apache.hadoop.net.StaticMapping;
import org.apache.hadoop.test.GenericTestUtils;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
@ -63,6 +59,8 @@ public class TestUpgradeDomainBlockPlacementPolicy {
private static final short REPLICATION_FACTOR = (short) 3;
private static final int DEFAULT_BLOCK_SIZE = 1024;
private static final int WAIT_TIMEOUT_MS = 60000;
private static final long FILE_SIZE = DEFAULT_BLOCK_SIZE * 5;
static final String[] racks =
{ "/RACK1", "/RACK1", "/RACK1", "/RACK2", "/RACK2", "/RACK2" };
static final String[] hosts =
@ -71,9 +69,6 @@ public class TestUpgradeDomainBlockPlacementPolicy {
{"ud5", "ud2", "ud3", "ud1", "ud2", "ud4"};
static final Set<DatanodeID> expectedDatanodeIDs = new HashSet<>();
private MiniDFSCluster cluster = null;
private NamenodeProtocols nameNodeRpc = null;
private FSNamesystem namesystem = null;
private PermissionStatus perm = null;
private HostsFileWriter hostsFileWriter = new HostsFileWriter();
@Before
@ -92,10 +87,6 @@ public class TestUpgradeDomainBlockPlacementPolicy {
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(6).racks(racks)
.hosts(hosts).build();
cluster.waitActive();
nameNodeRpc = cluster.getNameNodeRpc();
namesystem = cluster.getNamesystem();
perm = new PermissionStatus("TestDefaultBlockPlacementPolicy", null,
FsPermission.getDefault());
refreshDatanodeAdminProperties();
}
@ -186,43 +177,51 @@ public class TestUpgradeDomainBlockPlacementPolicy {
expectedDatanodeIDs.add(cluster.getDataNodes().get(5).getDatanodeId());
}
private void createFileAndWaitForReplication(final Path path,
final long fileLen)
throws Exception {
DFSTestUtil.createFile(cluster.getFileSystem(), path, fileLen,
REPLICATION_FACTOR, 1000L);
DFSTestUtil.waitForReplication(cluster.getFileSystem(), path,
REPLICATION_FACTOR, WAIT_TIMEOUT_MS);
}
@Test
public void testPlacement() throws Exception {
final long fileSize = DEFAULT_BLOCK_SIZE * 5;
final String testFile = new String("/testfile");
final long fileSize = FILE_SIZE;
final String testFile = "/testfile";
final Path path = new Path(testFile);
DFSTestUtil.createFile(cluster.getFileSystem(), path, fileSize,
REPLICATION_FACTOR, 1000L);
createFileAndWaitForReplication(path, FILE_SIZE);
LocatedBlocks locatedBlocks =
cluster.getFileSystem().getClient().getLocatedBlocks(
path.toString(), 0, fileSize);
for (LocatedBlock block : locatedBlocks.getLocatedBlocks()) {
Set<DatanodeInfo> locs = new HashSet<>();
for(DatanodeInfo datanodeInfo : block.getLocations()) {
if (datanodeInfo.getAdminState() == DatanodeInfo.AdminStates.NORMAL) {
if (datanodeInfo.getAdminState()
.equals(DatanodeInfo.AdminStates.NORMAL)) {
locs.add(datanodeInfo);
}
}
for (DatanodeID datanodeID : expectedDatanodeIDs) {
assertTrue(locs.contains(datanodeID));
Assert.assertTrue(locs.contains(datanodeID));
}
}
}
@Test(timeout = 300000)
public void testPlacementAfterDecommission() throws Exception {
final long fileSize = DEFAULT_BLOCK_SIZE * 5;
final String testFile = new String("/testfile");
final long fileSize = FILE_SIZE;
final String testFile = "/testfile-afterdecomm";
final Path path = new Path(testFile);
DFSTestUtil.createFile(cluster.getFileSystem(), path, fileSize,
REPLICATION_FACTOR, 1000L);
createFileAndWaitForReplication(path, fileSize);
// Decommission some nodes and wait until decommissions have finished.
refreshDatanodeAdminProperties2();
GenericTestUtils.waitFor(new Supplier<Boolean>() {
@Override
public Boolean get() {
boolean successful = true;
LocatedBlocks locatedBlocks;
try {
locatedBlocks =
@ -234,29 +233,31 @@ public class TestUpgradeDomainBlockPlacementPolicy {
for (LocatedBlock block : locatedBlocks.getLocatedBlocks()) {
Set<DatanodeInfo> locs = new HashSet<>();
for (DatanodeInfo datanodeInfo : block.getLocations()) {
if (datanodeInfo.getAdminState() ==
DatanodeInfo.AdminStates.NORMAL) {
if (datanodeInfo.getAdminState().equals(
DatanodeInfo.AdminStates.NORMAL)) {
locs.add(datanodeInfo);
}
}
for (DatanodeID datanodeID : expectedDatanodeIDs) {
successful = successful && locs.contains(datanodeID);
if (!locs.contains(datanodeID)) {
return false;
}
}
return successful;
}
}, 1000, 60000);
return true;
}
}, 1000, WAIT_TIMEOUT_MS);
// Verify block placement policy of each block.
LocatedBlocks locatedBlocks;
locatedBlocks =
LocatedBlocks locatedBlocks =
cluster.getFileSystem().getClient().getLocatedBlocks(
path.toString(), 0, fileSize);
for (LocatedBlock block : locatedBlocks.getLocatedBlocks()) {
BlockPlacementStatus status = cluster.getNamesystem().getBlockManager().
getBlockPlacementPolicy().verifyBlockPlacement(
block.getLocations(), REPLICATION_FACTOR);
assertTrue(status.isPlacementPolicySatisfied());
BlockPlacementStatus status =
cluster.getNamesystem().getBlockManager()
.getBlockPlacementPolicy()
.verifyBlockPlacement(block.getLocations(), REPLICATION_FACTOR);
Assert.assertTrue(status.isPlacementPolicySatisfied());
}
}
}