HDFS-16809. EC striped block is not sufficient when doing in maintenance. (#5050)
This commit is contained in:
dingshun3016
GitHub
parent
60e0fe8709
commit
02afb9ebe1
@ -1117,7 +1117,7 @@ public short getMinReplicationToBeInMaintenance() {
|
||||
return minReplicationToBeInMaintenance;
|
||||
}
|
||||
|
||||
private short getMinMaintenanceStorageNum(BlockInfo block) {
|
||||
short getMinMaintenanceStorageNum(BlockInfo block) {
|
||||
if (block.isStriped()) {
|
||||
return ((BlockInfoStriped) block).getRealDataBlockNum();
|
||||
} else {
|
||||
|
||||
@ -321,8 +321,7 @@ protected boolean isSufficient(BlockInfo block, BlockCollection bc,
|
||||
}
|
||||
}
|
||||
}
|
||||
if (isMaintenance
|
||||
&& numLive >= blockManager.getMinReplicationToBeInMaintenance()) {
|
||||
if (isMaintenance && numLive >= blockManager.getMinMaintenanceStorageNum(block)) {
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
|
||||
@ -0,0 +1,267 @@
|
||||
/**
|
||||
* 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.hdfs;
|
||||
|
||||
import static org.junit.Assert.assertEquals;
|
||||
import static org.junit.Assert.assertTrue;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
import java.util.HashMap;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.concurrent.TimeoutException;
|
||||
|
||||
import org.apache.hadoop.conf.Configuration;
|
||||
import org.apache.hadoop.fs.FileChecksum;
|
||||
import org.apache.hadoop.fs.Path;
|
||||
import org.apache.hadoop.hdfs.protocol.Block;
|
||||
import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
|
||||
import org.apache.hadoop.hdfs.protocol.DatanodeInfo.AdminStates;
|
||||
import org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy;
|
||||
import org.apache.hadoop.hdfs.protocol.HdfsConstants.DatanodeReportType;
|
||||
import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
|
||||
import org.apache.hadoop.hdfs.protocol.LocatedStripedBlock;
|
||||
import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo;
|
||||
import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoStriped;
|
||||
import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
|
||||
import org.apache.hadoop.hdfs.server.blockmanagement.CombinedHostFileManager;
|
||||
import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeStorageInfo;
|
||||
import org.apache.hadoop.hdfs.server.blockmanagement.HostConfigManager;
|
||||
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
|
||||
import org.apache.hadoop.hdfs.server.namenode.INodeFile;
|
||||
import org.apache.hadoop.hdfs.server.namenode.NameNode;
|
||||
import org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter;
|
||||
import org.apache.hadoop.hdfs.util.HostsFileWriter;
|
||||
import org.apache.hadoop.test.GenericTestUtils;
|
||||
import org.junit.After;
|
||||
import org.junit.Assert;
|
||||
import org.junit.Before;
|
||||
import org.junit.Test;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
/**
|
||||
* This class tests the in maintenance of datanode with striped blocks.
|
||||
*/
|
||||
public class TestMaintenanceWithStriped {
|
||||
private static final Logger LOG =
|
||||
LoggerFactory.getLogger(TestMaintenanceWithStriped.class);
|
||||
|
||||
// heartbeat interval in seconds
|
||||
private static final int HEARTBEAT_INTERVAL = 1;
|
||||
// block report in msec
|
||||
private static final int BLOCKREPORT_INTERVAL_MSEC = 1000;
|
||||
// replication interval
|
||||
private static final int NAMENODE_REPLICATION_INTERVAL = 1;
|
||||
|
||||
private Configuration conf;
|
||||
private MiniDFSCluster cluster;
|
||||
private DistributedFileSystem dfs;
|
||||
private final ErasureCodingPolicy ecPolicy =
|
||||
StripedFileTestUtil.getDefaultECPolicy();
|
||||
private int numDNs;
|
||||
private final int cellSize = ecPolicy.getCellSize();
|
||||
private final int dataBlocks = ecPolicy.getNumDataUnits();
|
||||
private final int parityBlocks = ecPolicy.getNumParityUnits();
|
||||
private final int blockSize = cellSize * 4;
|
||||
private final int blockGroupSize = blockSize * dataBlocks;
|
||||
private final Path ecDir = new Path("/" + this.getClass().getSimpleName());
|
||||
private HostsFileWriter hostsFileWriter;
|
||||
private boolean useCombinedHostFileManager = true;
|
||||
|
||||
private FSNamesystem fsn;
|
||||
private BlockManager bm;
|
||||
|
||||
protected Configuration createConfiguration() {
|
||||
return new HdfsConfiguration();
|
||||
}
|
||||
|
||||
@Before
|
||||
public void setup() throws IOException {
|
||||
// Set up the hosts/exclude files.
|
||||
hostsFileWriter = new HostsFileWriter();
|
||||
conf = createConfiguration();
|
||||
if (useCombinedHostFileManager) {
|
||||
conf.setClass(DFSConfigKeys.DFS_NAMENODE_HOSTS_PROVIDER_CLASSNAME_KEY,
|
||||
CombinedHostFileManager.class, HostConfigManager.class);
|
||||
}
|
||||
hostsFileWriter.initialize(conf, "temp/admin");
|
||||
|
||||
|
||||
conf.setInt(DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY,
|
||||
2000);
|
||||
conf.setInt(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, HEARTBEAT_INTERVAL);
|
||||
conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
|
||||
conf.setInt(DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_KEY,
|
||||
BLOCKREPORT_INTERVAL_MSEC);
|
||||
conf.setInt(DFSConfigKeys.DFS_NAMENODE_RECONSTRUCTION_PENDING_TIMEOUT_SEC_KEY,
|
||||
4);
|
||||
conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY,
|
||||
NAMENODE_REPLICATION_INTERVAL);
|
||||
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
|
||||
conf.setInt(
|
||||
DFSConfigKeys.DFS_DN_EC_RECONSTRUCTION_STRIPED_READ_BUFFER_SIZE_KEY,
|
||||
cellSize - 1);
|
||||
conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
|
||||
conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
|
||||
false);
|
||||
|
||||
numDNs = dataBlocks + parityBlocks + 5;
|
||||
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build();
|
||||
cluster.waitActive();
|
||||
dfs = cluster.getFileSystem(0);
|
||||
fsn = cluster.getNamesystem();
|
||||
bm = fsn.getBlockManager();
|
||||
|
||||
dfs.enableErasureCodingPolicy(
|
||||
StripedFileTestUtil.getDefaultECPolicy().getName());
|
||||
dfs.mkdirs(ecDir);
|
||||
dfs.setErasureCodingPolicy(ecDir,
|
||||
StripedFileTestUtil.getDefaultECPolicy().getName());
|
||||
}
|
||||
|
||||
@After
|
||||
public void teardown() throws IOException {
|
||||
hostsFileWriter.cleanup();
|
||||
if (cluster != null) {
|
||||
cluster.shutdown();
|
||||
cluster = null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* test DN maintenance with striped blocks.
|
||||
* @throws Exception
|
||||
*/
|
||||
@Test(timeout = 120000)
|
||||
public void testInMaintenance() throws Exception {
|
||||
//1. create EC file
|
||||
// d0 d1 d2 d3 d4 d5 d6 d7 d8
|
||||
final Path ecFile = new Path(ecDir, "testInMaintenance");
|
||||
int writeBytes = cellSize * dataBlocks;
|
||||
writeStripedFile(dfs, ecFile, writeBytes);
|
||||
Assert.assertEquals(0, bm.numOfUnderReplicatedBlocks());
|
||||
FileChecksum fileChecksum1 = dfs.getFileChecksum(ecFile, writeBytes);
|
||||
|
||||
final INodeFile fileNode = cluster.getNamesystem().getFSDirectory()
|
||||
.getINode4Write(ecFile.toString()).asFile();
|
||||
BlockInfo firstBlock = fileNode.getBlocks()[0];
|
||||
DatanodeStorageInfo[] dnStorageInfos = bm.getStorages(firstBlock);
|
||||
|
||||
//2. maintenance node
|
||||
// d4 d5 d6 d7 d8
|
||||
int maintenanceDNIndex = 4;
|
||||
int numMaintenance= 5;
|
||||
List<DatanodeInfo> maintenanceNodes = new ArrayList<>();
|
||||
|
||||
for (int i = maintenanceDNIndex; i < numMaintenance + maintenanceDNIndex; ++i) {
|
||||
maintenanceNodes.add(dnStorageInfos[i].getDatanodeDescriptor());
|
||||
}
|
||||
|
||||
maintenanceNode(0, maintenanceNodes, AdminStates.IN_MAINTENANCE, Long.MAX_VALUE);
|
||||
|
||||
//3. wait for maintenance block to replicate
|
||||
GenericTestUtils.waitFor(
|
||||
() -> maintenanceNodes.size() == fsn.getNumInMaintenanceLiveDataNodes(),
|
||||
100, 60000);
|
||||
|
||||
//4. check DN status, it should be reconstructed again
|
||||
LocatedBlocks lbs = cluster.getNameNodeRpc().getBlockLocations(
|
||||
ecFile.toString(), 0, writeBytes);
|
||||
LocatedStripedBlock bg = (LocatedStripedBlock) (lbs.get(0));
|
||||
|
||||
BlockInfoStriped blockInfo =
|
||||
(BlockInfoStriped)bm.getStoredBlock(
|
||||
new Block(bg.getBlock().getBlockId()));
|
||||
|
||||
// So far, there are 11 total internal blocks, 6 live (d0 d1 d2 d3 d4' d5')
|
||||
// and 5 in maintenance (d4 d5 d6 d7 d8) internal blocks.
|
||||
|
||||
assertEquals(6, bm.countNodes(blockInfo).liveReplicas());
|
||||
assertEquals(5, bm.countNodes(blockInfo).maintenanceNotForReadReplicas());
|
||||
|
||||
FileChecksum fileChecksum2 = dfs.getFileChecksum(ecFile, writeBytes);
|
||||
Assert.assertEquals("Checksum mismatches!", fileChecksum1, fileChecksum2);
|
||||
}
|
||||
|
||||
|
||||
/* Get DFSClient to the namenode */
|
||||
private static DFSClient getDfsClient(NameNode nn, Configuration conf)
|
||||
throws IOException {
|
||||
return new DFSClient(nn.getNameNodeAddress(), conf);
|
||||
}
|
||||
|
||||
private byte[] writeStripedFile(DistributedFileSystem fs, Path ecFile,
|
||||
int writeBytes) throws Exception {
|
||||
byte[] bytes = StripedFileTestUtil.generateBytes(writeBytes);
|
||||
DFSTestUtil.writeFile(fs, ecFile, new String(bytes));
|
||||
StripedFileTestUtil.waitBlockGroupsReported(fs, ecFile.toString());
|
||||
|
||||
StripedFileTestUtil.checkData(fs, ecFile, writeBytes,
|
||||
new ArrayList<DatanodeInfo>(), null, blockGroupSize);
|
||||
return bytes;
|
||||
}
|
||||
|
||||
/*
|
||||
* maintenance the DN at index dnIndex or one random node if dnIndex is set
|
||||
* to -1 and wait for the node to reach the given {@code waitForState}.
|
||||
*/
|
||||
private void maintenanceNode(int nnIndex, List<DatanodeInfo> maintenancedNodes,
|
||||
AdminStates waitForState, long maintenanceExpirationInMS)
|
||||
throws IOException, TimeoutException, InterruptedException {
|
||||
DFSClient client = getDfsClient(cluster.getNameNode(nnIndex), conf);
|
||||
DatanodeInfo[] info = client.datanodeReport(DatanodeReportType.LIVE);
|
||||
|
||||
// write nodename into the exclude file.
|
||||
Map<String, Long> maintenanceNodes = new HashMap<>();
|
||||
|
||||
for (DatanodeInfo dn : maintenancedNodes) {
|
||||
boolean nodeExists = false;
|
||||
for (DatanodeInfo dninfo : info) {
|
||||
if (dninfo.getDatanodeUuid().equals(dn.getDatanodeUuid())) {
|
||||
nodeExists = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
assertTrue("Datanode: " + dn + " is not LIVE", nodeExists);
|
||||
maintenanceNodes.put(dn.getName(), maintenanceExpirationInMS);
|
||||
LOG.info("Maintenance node: " + dn.getName());
|
||||
}
|
||||
// write node names into the json host file.
|
||||
hostsFileWriter.initOutOfServiceHosts(null, maintenanceNodes);
|
||||
|
||||
refreshNodes(cluster.getNamesystem(nnIndex), conf);
|
||||
for (DatanodeInfo dn : maintenancedNodes) {
|
||||
DatanodeInfo ret = NameNodeAdapter
|
||||
.getDatanode(cluster.getNamesystem(nnIndex), dn);
|
||||
LOG.info("Waiting for node " + ret + " to change state to " + waitForState
|
||||
+ " current state: " + ret.getAdminState());
|
||||
GenericTestUtils.waitFor(
|
||||
() -> ret.getAdminState() == waitForState,
|
||||
100, 60000);
|
||||
LOG.info("node " + ret + " reached the state " + waitForState);
|
||||
}
|
||||
}
|
||||
|
||||
private static void refreshNodes(final FSNamesystem ns,
|
||||
final Configuration conf) throws IOException {
|
||||
ns.getBlockManager().getDatanodeManager().refreshNodes(conf);
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user