HDFS-9918. Erasure Coding: Sort located striped blocks based on decommissioned states. Contributed by Rakesh R.
This commit is contained in:
Zhe Zhang
parent
600d129bb8
commit
6ef42873a0
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@ -35,6 +35,7 @@ import org.apache.hadoop.hdfs.DFSUtil;
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import org.apache.hadoop.hdfs.HdfsConfiguration;
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import org.apache.hadoop.hdfs.protocol.*;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants.DatanodeReportType;
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import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
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import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor.BlockTargetPair;
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import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor.CachedBlocksList;
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import org.apache.hadoop.hdfs.server.namenode.CachedBlock;
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@ -47,6 +48,7 @@ import org.apache.hadoop.hdfs.server.protocol.BlockRecoveryCommand.RecoveringStr
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import org.apache.hadoop.ipc.Server;
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import org.apache.hadoop.net.*;
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import org.apache.hadoop.net.NetworkTopology.InvalidTopologyException;
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import org.apache.hadoop.security.token.Token;
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import org.apache.hadoop.util.ReflectionUtils;
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import java.io.IOException;
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@ -368,49 +370,110 @@ public class DatanodeManager {
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}
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/** Sort the located blocks by the distance to the target host. */
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public void sortLocatedBlocks(final String targethost,
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final List<LocatedBlock> locatedblocks) {
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//sort the blocks
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/**
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* Sort the non-striped located blocks by the distance to the target host.
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*
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* For striped blocks, it will only move decommissioned/stale nodes to the
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* bottom. For example, assume we have storage list:
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* d0, d1, d2, d3, d4, d5, d6, d7, d8, d9
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* mapping to block indices:
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* 0, 1, 2, 3, 4, 5, 6, 7, 8, 2
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*
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* Here the internal block b2 is duplicated, locating in d2 and d9. If d2 is
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* a decommissioning node then should switch d2 and d9 in the storage list.
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* After sorting locations, will update corresponding block indices
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* and block tokens.
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*/
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public void sortLocatedBlocks(final String targetHost,
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final List<LocatedBlock> locatedBlocks) {
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Comparator<DatanodeInfo> comparator = avoidStaleDataNodesForRead ?
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new DFSUtil.DecomStaleComparator(staleInterval) :
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DFSUtil.DECOM_COMPARATOR;
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// sort located block
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for (LocatedBlock lb : locatedBlocks) {
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if (lb.isStriped()) {
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sortLocatedStripedBlock(lb, comparator);
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} else {
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sortLocatedBlock(lb, targetHost, comparator);
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}
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}
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}
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/**
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* Move decommissioned/stale datanodes to the bottom. After sorting it will
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* update block indices and block tokens respectively.
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*
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* @param lb located striped block
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* @param comparator dn comparator
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*/
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private void sortLocatedStripedBlock(final LocatedBlock lb,
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Comparator<DatanodeInfo> comparator) {
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DatanodeInfo[] di = lb.getLocations();
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HashMap<DatanodeInfo, Byte> locToIndex = new HashMap<>();
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HashMap<DatanodeInfo, Token<BlockTokenIdentifier>> locToToken =
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new HashMap<>();
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LocatedStripedBlock lsb = (LocatedStripedBlock) lb;
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for (int i = 0; i < di.length; i++) {
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locToIndex.put(di[i], lsb.getBlockIndices()[i]);
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locToToken.put(di[i], lsb.getBlockTokens()[i]);
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}
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// Move decommissioned/stale datanodes to the bottom
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Arrays.sort(di, comparator);
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// must update cache since we modified locations array
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lb.updateCachedStorageInfo();
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// must update block indices and block tokens respectively
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for (int i = 0; i < di.length; i++) {
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lsb.getBlockIndices()[i] = locToIndex.get(di[i]);
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lsb.getBlockTokens()[i] = locToToken.get(di[i]);
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}
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}
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/**
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* Move decommissioned/stale datanodes to the bottom. Also, sort nodes by
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* network distance.
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*
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* @param lb located block
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* @param targetHost target host
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* @param comparator dn comparator
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*/
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private void sortLocatedBlock(final LocatedBlock lb, String targetHost,
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Comparator<DatanodeInfo> comparator) {
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// As it is possible for the separation of node manager and datanode,
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// here we should get node but not datanode only .
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Node client = getDatanodeByHost(targethost);
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Node client = getDatanodeByHost(targetHost);
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if (client == null) {
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List<String> hosts = new ArrayList<> (1);
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hosts.add(targethost);
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hosts.add(targetHost);
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List<String> resolvedHosts = dnsToSwitchMapping.resolve(hosts);
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if (resolvedHosts != null && !resolvedHosts.isEmpty()) {
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String rName = resolvedHosts.get(0);
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if (rName != null) {
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client = new NodeBase(rName + NodeBase.PATH_SEPARATOR_STR +
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targethost);
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targetHost);
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}
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} else {
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LOG.error("Node Resolution failed. Please make sure that rack " +
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"awareness scripts are functional.");
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}
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}
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Comparator<DatanodeInfo> comparator = avoidStaleDataNodesForRead ?
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new DFSUtil.DecomStaleComparator(staleInterval) :
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DFSUtil.DECOM_COMPARATOR;
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for (LocatedBlock b : locatedblocks) {
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DatanodeInfo[] di = b.getLocations();
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// Move decommissioned/stale datanodes to the bottom
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Arrays.sort(di, comparator);
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int lastActiveIndex = di.length - 1;
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while (lastActiveIndex > 0 && isInactive(di[lastActiveIndex])) {
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--lastActiveIndex;
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}
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int activeLen = lastActiveIndex + 1;
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networktopology.sortByDistance(client, b.getLocations(), activeLen);
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// must update cache since we modified locations array
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b.updateCachedStorageInfo();
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DatanodeInfo[] di = lb.getLocations();
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// Move decommissioned/stale datanodes to the bottom
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Arrays.sort(di, comparator);
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// Sort nodes by network distance only for located blocks
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int lastActiveIndex = di.length - 1;
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while (lastActiveIndex > 0 && isInactive(di[lastActiveIndex])) {
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--lastActiveIndex;
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}
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int activeLen = lastActiveIndex + 1;
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networktopology.sortByDistance(client, lb.getLocations(), activeLen);
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// must update cache since we modified locations array
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lb.updateCachedStorageInfo();
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}
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/** @return the datanode descriptor for the host. */
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public DatanodeDescriptor getDatanodeByHost(final String host) {
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@ -184,7 +184,6 @@ import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
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import org.apache.hadoop.hdfs.protocol.LastBlockWithStatus;
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import org.apache.hadoop.hdfs.protocol.LocatedBlock;
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import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
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import org.apache.hadoop.hdfs.protocol.LocatedStripedBlock;
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import org.apache.hadoop.hdfs.protocol.RecoveryInProgressException;
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import org.apache.hadoop.hdfs.protocol.RollingUpgradeException;
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import org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo;
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@ -1779,25 +1778,28 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
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}
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LocatedBlocks blocks = res.blocks;
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sortLocatedBlocks(clientMachine, blocks);
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return blocks;
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}
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private void sortLocatedBlocks(String clientMachine, LocatedBlocks blocks) {
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if (blocks != null) {
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List<LocatedBlock> blkList = blocks.getLocatedBlocks();
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if (blkList == null || blkList.size() == 0 ||
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blkList.get(0) instanceof LocatedStripedBlock) {
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// no need to sort locations for striped blocks
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return blocks;
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if (blkList == null || blkList.size() == 0) {
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// simply return, block list is empty
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return;
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}
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blockManager.getDatanodeManager().sortLocatedBlocks(
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clientMachine, blkList);
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blockManager.getDatanodeManager().sortLocatedBlocks(clientMachine,
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blkList);
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// lastBlock is not part of getLocatedBlocks(), might need to sort it too
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LocatedBlock lastBlock = blocks.getLastLocatedBlock();
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if (lastBlock != null) {
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ArrayList<LocatedBlock> lastBlockList = Lists.newArrayList(lastBlock);
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blockManager.getDatanodeManager().sortLocatedBlocks(
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clientMachine, lastBlockList);
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blockManager.getDatanodeManager().sortLocatedBlocks(clientMachine,
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lastBlockList);
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}
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}
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return blocks;
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}
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/**
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@ -27,6 +27,7 @@ import static org.junit.Assert.assertTrue;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.List;
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import java.util.concurrent.CountDownLatch;
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@ -49,12 +50,15 @@ import org.apache.hadoop.hdfs.client.HdfsDataInputStream;
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import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
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import org.apache.hadoop.hdfs.protocol.DatanodeInfo.AdminStates;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants.DatanodeReportType;
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import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
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import org.apache.hadoop.hdfs.protocol.LocatedBlock;
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import org.apache.hadoop.hdfs.protocol.LocatedStripedBlock;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
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import org.apache.hadoop.hdfs.server.datanode.DataNode;
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import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
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import org.apache.hadoop.hdfs.server.namenode.NameNode;
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import org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter;
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import org.apache.hadoop.security.token.Token;
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import org.apache.hadoop.test.PathUtils;
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import org.junit.After;
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import org.junit.Assert;
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@ -159,6 +163,13 @@ public class TestDecommissionWithStriped {
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testDecommission(blockSize * dataBlocks, 9, 1, "testFileFullBlockGroup");
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}
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@Test(timeout = 120000)
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public void testFileMultipleBlockGroups() throws Exception {
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LOG.info("Starting test testFileMultipleBlockGroups");
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int writeBytes = 2 * blockSize * dataBlocks;
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testDecommission(writeBytes, 9, 1, "testFileMultipleBlockGroups");
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}
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@Test(timeout = 120000)
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public void testFileSmallerThanOneCell() throws Exception {
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LOG.info("Starting test testFileSmallerThanOneCell");
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@ -274,7 +285,15 @@ public class TestDecommissionWithStriped {
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int deadDecomissioned = fsn.getNumDecomDeadDataNodes();
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int liveDecomissioned = fsn.getNumDecomLiveDataNodes();
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((HdfsDataInputStream) dfs.open(ecFile)).getAllBlocks();
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List<LocatedBlock> lbs = ((HdfsDataInputStream) dfs.open(ecFile))
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.getAllBlocks();
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// prepare expected block index and token list.
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List<HashMap<DatanodeInfo, Byte>> locToIndexList = new ArrayList<>();
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List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList =
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new ArrayList<>();
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prepareBlockIndexAndTokenList(lbs, locToIndexList, locToTokenList);
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// Decommission node. Verify that node is decommissioned.
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decommissionNode(0, decommisionNodes, AdminStates.DECOMMISSIONED);
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@ -290,9 +309,55 @@ public class TestDecommissionWithStriped {
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assertNull(checkFile(dfs, ecFile, storageCount, decommisionNodes, numDNs));
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StripedFileTestUtil.checkData(dfs, ecFile, writeBytes, decommisionNodes,
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null);
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assertBlockIndexAndTokenPosition(lbs, locToIndexList, locToTokenList);
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cleanupFile(dfs, ecFile);
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}
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private void prepareBlockIndexAndTokenList(List<LocatedBlock> lbs,
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List<HashMap<DatanodeInfo, Byte>> locToIndexList,
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List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList) {
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for (LocatedBlock lb : lbs) {
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HashMap<DatanodeInfo, Byte> locToIndex = new HashMap<DatanodeInfo, Byte>();
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locToIndexList.add(locToIndex);
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HashMap<DatanodeInfo, Token<BlockTokenIdentifier>> locToToken =
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new HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>();
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locToTokenList.add(locToToken);
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DatanodeInfo[] di = lb.getLocations();
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LocatedStripedBlock stripedBlk = (LocatedStripedBlock) lb;
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for (int i = 0; i < di.length; i++) {
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locToIndex.put(di[i], stripedBlk.getBlockIndices()[i]);
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locToToken.put(di[i], stripedBlk.getBlockTokens()[i]);
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}
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}
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}
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/**
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* Verify block index and token values. Must update block indices and block
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* tokens after sorting.
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*/
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private void assertBlockIndexAndTokenPosition(List<LocatedBlock> lbs,
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List<HashMap<DatanodeInfo, Byte>> locToIndexList,
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List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList) {
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for (int i = 0; i < lbs.size(); i++) {
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LocatedBlock lb = lbs.get(i);
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LocatedStripedBlock stripedBlk = (LocatedStripedBlock) lb;
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HashMap<DatanodeInfo, Byte> locToIndex = locToIndexList.get(i);
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HashMap<DatanodeInfo, Token<BlockTokenIdentifier>> locToToken =
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locToTokenList.get(i);
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DatanodeInfo[] di = lb.getLocations();
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for (int j = 0; j < di.length; j++) {
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Assert.assertEquals("Block index value mismatches after sorting",
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(byte) locToIndex.get(di[j]), stripedBlk.getBlockIndices()[j]);
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Assert.assertEquals("Block token value mismatches after sorting",
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locToToken.get(di[j]), stripedBlk.getBlockTokens()[j]);
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}
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}
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}
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private List<DatanodeInfo> getDecommissionDatanode(DistributedFileSystem dfs,
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Path ecFile, int writeBytes, int decomNodeCount) throws IOException {
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ArrayList<DatanodeInfo> decommissionedNodes = new ArrayList<>();
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@ -447,7 +512,12 @@ public class TestDecommissionWithStriped {
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return "For block " + blk.getBlock() + " replica on " + nodes[j]
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+ " is given as downnode, " + "but is not decommissioned";
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}
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// TODO: Add check to verify that the Decommissioned node (if any)
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// Decommissioned node (if any) should only be last node in list.
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if (j < repl) {
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return "For block " + blk.getBlock() + " decommissioned node "
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+ nodes[j] + " was not last node in list: " + (j + 1) + " of "
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+ nodes.length;
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}
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// should only be last node in list.
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LOG.info("Block " + blk.getBlock() + " replica on " + nodes[j]
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+ " is decommissioned.");
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@ -470,4 +540,4 @@ public class TestDecommissionWithStriped {
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}
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return null;
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}
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}
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}
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@ -0,0 +1,557 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hdfs.server.blockmanagement;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.StorageType;
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import org.apache.hadoop.hdfs.DFSConfigKeys;
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import org.apache.hadoop.hdfs.DFSTestUtil;
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import org.apache.hadoop.hdfs.StripedFileTestUtil;
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import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
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import org.apache.hadoop.hdfs.protocol.DatanodeInfo.AdminStates;
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import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
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import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
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import org.apache.hadoop.hdfs.protocol.LocatedBlock;
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import org.apache.hadoop.hdfs.protocol.LocatedStripedBlock;
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import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
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import org.apache.hadoop.security.token.Token;
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import org.apache.hadoop.util.Time;
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import org.junit.Assert;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import org.mockito.Mockito;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* This class tests the sorting of located striped blocks based on
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* decommissioned states.
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*/
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public class TestSortLocatedStripedBlock {
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static final Logger LOG = LoggerFactory
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.getLogger(TestSortLocatedStripedBlock.class);
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static final int BLK_GROUP_WIDTH = StripedFileTestUtil.NUM_DATA_BLOCKS
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+ StripedFileTestUtil.NUM_PARITY_BLOCKS;
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static final int NUM_DATA_BLOCKS = StripedFileTestUtil.NUM_DATA_BLOCKS;
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static final int NUM_PARITY_BLOCKS = StripedFileTestUtil.NUM_PARITY_BLOCKS;
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static DatanodeManager dm;
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static final long STALE_INTERVAL = 30 * 1000 * 60;
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@BeforeClass
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public static void setup() throws IOException {
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dm = mockDatanodeManager();
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}
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/**
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* Test to verify sorting with multiple decommissioned datanodes exists in
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* storage lists.
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*
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* We have storage list, marked decommissioned internal blocks with a '
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* d0, d1, d2, d3, d4, d5, d6, d7, d8, d9, d10, d11, d12
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* mapping to indices
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* 0', 1', 2, 3, 4, 5, 6, 7', 8', 0, 1, 7, 8
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*
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* Decommissioned node indices: 0, 1, 7, 8
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*
|
||||
* So in the original list nodes d0, d1, d7, d8 are decommissioned state.
|
||||
*
|
||||
* After sorting the expected block indices list should be,
|
||||
* 0, 1, 2, 3, 4, 5, 6, 7, 8, 0', 1', 7', 8'
|
||||
*
|
||||
* After sorting the expected storage list will be,
|
||||
* d9, d10, d2, d3, d4, d5, d6, d11, d12, d0, d1, d7, d8.
|
||||
*
|
||||
* Note: after sorting block indices will not be in ascending order.
|
||||
*/
|
||||
@Test(timeout = 10000)
|
||||
public void testWithMultipleDecommnDatanodes() {
|
||||
LOG.info("Starting test testSortWithMultipleDecommnDatanodes");
|
||||
int lbsCount = 2; // two located block groups
|
||||
List<Integer> decommnNodeIndices = new ArrayList<>();
|
||||
decommnNodeIndices.add(0);
|
||||
decommnNodeIndices.add(1);
|
||||
decommnNodeIndices.add(7);
|
||||
decommnNodeIndices.add(8);
|
||||
List<Integer> targetNodeIndices = new ArrayList<>();
|
||||
targetNodeIndices.addAll(decommnNodeIndices);
|
||||
// map contains decommissioned node details in each located strip block
|
||||
// which will be used for assertions
|
||||
HashMap<Integer, List<String>> decommissionedNodes = new HashMap<>(
|
||||
lbsCount * decommnNodeIndices.size());
|
||||
List<LocatedBlock> lbs = createLocatedStripedBlocks(lbsCount,
|
||||
NUM_DATA_BLOCKS, NUM_PARITY_BLOCKS, decommnNodeIndices,
|
||||
targetNodeIndices, decommissionedNodes);
|
||||
|
||||
// prepare expected block index and token list.
|
||||
List<HashMap<DatanodeInfo, Byte>> locToIndexList = new ArrayList<>();
|
||||
List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList =
|
||||
new ArrayList<>();
|
||||
prepareBlockIndexAndTokenList(lbs, locToIndexList, locToTokenList);
|
||||
|
||||
dm.sortLocatedBlocks(null, lbs);
|
||||
|
||||
assertDecommnNodePosition(BLK_GROUP_WIDTH, decommissionedNodes, lbs);
|
||||
assertBlockIndexAndTokenPosition(lbs, locToIndexList, locToTokenList);
|
||||
}
|
||||
|
||||
/**
|
||||
* Test to verify sorting with two decommissioned datanodes exists in
|
||||
* storage lists for the same block index.
|
||||
*
|
||||
* We have storage list, marked decommissioned internal blocks with a '
|
||||
* d0, d1, d2, d3, d4, d5, d6, d7, d8, d9, d10, d11, d12, d13
|
||||
* mapping to indices
|
||||
* 0', 1', 2, 3, 4', 5', 6, 7, 8, 0, 1', 4, 5, 1
|
||||
*
|
||||
* Decommissioned node indices: 0', 1', 4', 5', 1'
|
||||
*
|
||||
* Here decommissioned has done twice to the datanode block index 1.
|
||||
* So in the original list nodes d0, d1, d4, d5, d10 are decommissioned state.
|
||||
*
|
||||
* After sorting the expected block indices list will be,
|
||||
* 0, 1, 2, 3, 4, 5, 6, 7, 8, 0', 1', 1', 4', 5'
|
||||
*
|
||||
* After sorting the expected storage list will be,
|
||||
* d9, d13, d2, d3, d11, d12, d6, d7, d8, d0, d1, d10, d4, d5.
|
||||
*
|
||||
* Note: after sorting block indices will not be in ascending order.
|
||||
*/
|
||||
@Test(timeout = 10000)
|
||||
public void testTwoDatanodesWithSameBlockIndexAreDecommn() {
|
||||
LOG.info("Starting test testTwoDatanodesWithSameBlockIndexAreDecommn");
|
||||
int lbsCount = 2; // two located block groups
|
||||
List<Integer> decommnNodeIndices = new ArrayList<>();
|
||||
decommnNodeIndices.add(0);
|
||||
decommnNodeIndices.add(1);
|
||||
decommnNodeIndices.add(4);
|
||||
decommnNodeIndices.add(5);
|
||||
// representing blockIndex 1, later this also decommissioned
|
||||
decommnNodeIndices.add(1);
|
||||
|
||||
List<Integer> targetNodeIndices = new ArrayList<>();
|
||||
targetNodeIndices.addAll(decommnNodeIndices);
|
||||
// map contains decommissioned node details in each located strip block
|
||||
// which will be used for assertions
|
||||
HashMap<Integer, List<String>> decommissionedNodes = new HashMap<>(
|
||||
lbsCount * decommnNodeIndices.size());
|
||||
List<LocatedBlock> lbs = createLocatedStripedBlocks(lbsCount,
|
||||
NUM_DATA_BLOCKS, NUM_PARITY_BLOCKS, decommnNodeIndices,
|
||||
targetNodeIndices, decommissionedNodes);
|
||||
|
||||
// prepare expected block index and token list.
|
||||
List<HashMap<DatanodeInfo, Byte>> locToIndexList = new ArrayList<>();
|
||||
List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList =
|
||||
new ArrayList<>();
|
||||
prepareBlockIndexAndTokenList(lbs, locToIndexList, locToTokenList);
|
||||
|
||||
dm.sortLocatedBlocks(null, lbs);
|
||||
assertDecommnNodePosition(BLK_GROUP_WIDTH, decommissionedNodes, lbs);
|
||||
assertBlockIndexAndTokenPosition(lbs, locToIndexList, locToTokenList);
|
||||
}
|
||||
|
||||
/**
|
||||
* Test to verify sorting with decommissioned datanodes exists in storage
|
||||
* list which is smaller than stripe size.
|
||||
*
|
||||
* We have storage list, marked decommissioned internal blocks with a '
|
||||
* d0, d1, d2, d3, d6, d7, d8, d9, d10, d11
|
||||
* mapping to indices
|
||||
* 0', 1, 2', 3, 6, 7, 8, 0, 2', 2
|
||||
*
|
||||
* Decommissioned node indices: 0', 2', 2'
|
||||
*
|
||||
* Here decommissioned has done twice to the datanode block index 2.
|
||||
* So in the original list nodes d0, d2, d10 are decommissioned state.
|
||||
*
|
||||
* After sorting the expected block indices list should be,
|
||||
* 0, 1, 2, 3, 6, 7, 8, 0', 2', 2'
|
||||
*
|
||||
* After sorting the expected storage list will be,
|
||||
* d9, d1, d11, d3, d6, d7, d8, d0, d2, d10.
|
||||
*
|
||||
* Note: after sorting block indices will not be in ascending order.
|
||||
*/
|
||||
@Test(timeout = 10000)
|
||||
public void testSmallerThanOneStripeWithMultpleDecommnNodes()
|
||||
throws Exception {
|
||||
LOG.info("Starting test testSmallerThanOneStripeWithDecommn");
|
||||
int lbsCount = 2; // two located block groups
|
||||
List<Integer> decommnNodeIndices = new ArrayList<>();
|
||||
decommnNodeIndices.add(0);
|
||||
decommnNodeIndices.add(2);
|
||||
// representing blockIndex 1, later this also decommissioned
|
||||
decommnNodeIndices.add(2);
|
||||
|
||||
List<Integer> targetNodeIndices = new ArrayList<>();
|
||||
targetNodeIndices.addAll(decommnNodeIndices);
|
||||
// map contains decommissioned node details in each located strip block
|
||||
// which will be used for assertions
|
||||
HashMap<Integer, List<String>> decommissionedNodes = new HashMap<>(
|
||||
lbsCount * decommnNodeIndices.size());
|
||||
int dataBlksNum = NUM_DATA_BLOCKS - 2;
|
||||
List<LocatedBlock> lbs = createLocatedStripedBlocks(lbsCount, dataBlksNum,
|
||||
NUM_PARITY_BLOCKS, decommnNodeIndices, targetNodeIndices,
|
||||
decommissionedNodes);
|
||||
|
||||
// prepare expected block index and token list.
|
||||
List<HashMap<DatanodeInfo, Byte>> locToIndexList = new ArrayList<>();
|
||||
List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList =
|
||||
new ArrayList<>();
|
||||
prepareBlockIndexAndTokenList(lbs, locToIndexList, locToTokenList);
|
||||
|
||||
dm.sortLocatedBlocks(null, lbs);
|
||||
|
||||
// After this index all are decommissioned nodes.
|
||||
int blkGrpWidth = dataBlksNum + NUM_PARITY_BLOCKS;
|
||||
assertDecommnNodePosition(blkGrpWidth, decommissionedNodes, lbs);
|
||||
assertBlockIndexAndTokenPosition(lbs, locToIndexList, locToTokenList);
|
||||
}
|
||||
|
||||
/**
|
||||
* Test to verify sorting with decommissioned datanodes exists in storage
|
||||
* list but the corresponding new target datanode doesn't exists.
|
||||
*
|
||||
* We have storage list, marked decommissioned internal blocks with a '
|
||||
* d0, d1, d2, d3, d4, d5, d6, d7, d8, d9, d10, d11
|
||||
* mapping to indices
|
||||
* 0', 1', 2', 3, 4', 5', 6, 7, 8, 0, 2, 4
|
||||
*
|
||||
* Decommissioned node indices: 0', 1', 2', 4', 5'
|
||||
*
|
||||
* 1 and 5 nodes doesn't exists in the target list. This can happen, the
|
||||
* target node block corrupted or lost after the successful decommissioning.
|
||||
* So in the original list nodes corresponding to the decommissioned block
|
||||
* index 1 and 5 doesn't have any target entries.
|
||||
*
|
||||
* After sorting the expected block indices list should be,
|
||||
* 0, 2, 3, 4, 6, 7, 8, 0', 1', 2', 4', 5'
|
||||
*
|
||||
* After sorting the expected storage list will be,
|
||||
* d9, d10, d3, d11, d6, d7, d8, d0, d1, d2, d4, d5.
|
||||
*
|
||||
* Note: after sorting block indices will not be in ascending order.
|
||||
*/
|
||||
@Test(timeout = 10000)
|
||||
public void testTargetDecommnDatanodeDoesntExists() {
|
||||
LOG.info("Starting test testTargetDecommnDatanodeDoesntExists");
|
||||
int lbsCount = 2; // two located block groups
|
||||
List<Integer> decommnNodeIndices = new ArrayList<>();
|
||||
decommnNodeIndices.add(0);
|
||||
decommnNodeIndices.add(1);
|
||||
decommnNodeIndices.add(2);
|
||||
decommnNodeIndices.add(4);
|
||||
decommnNodeIndices.add(5);
|
||||
|
||||
List<Integer> targetNodeIndices = new ArrayList<>();
|
||||
targetNodeIndices.add(0);
|
||||
targetNodeIndices.add(2);
|
||||
targetNodeIndices.add(4);
|
||||
// 1 and 5 nodes doesn't exists in the target list. One such case is, the
|
||||
// target node block corrupted or lost after the successful decommissioning
|
||||
|
||||
// map contains decommissioned node details in each located strip block
|
||||
// which will be used for assertions
|
||||
HashMap<Integer, List<String>> decommissionedNodes = new HashMap<>(
|
||||
lbsCount * decommnNodeIndices.size());
|
||||
List<LocatedBlock> lbs = createLocatedStripedBlocks(lbsCount,
|
||||
NUM_DATA_BLOCKS, NUM_PARITY_BLOCKS, decommnNodeIndices,
|
||||
targetNodeIndices, decommissionedNodes);
|
||||
|
||||
// prepare expected block index and token list.
|
||||
List<HashMap<DatanodeInfo, Byte>> locToIndexList = new ArrayList<>();
|
||||
List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList =
|
||||
new ArrayList<>();
|
||||
prepareBlockIndexAndTokenList(lbs, locToIndexList, locToTokenList);
|
||||
|
||||
dm.sortLocatedBlocks(null, lbs);
|
||||
|
||||
// After this index all are decommissioned nodes. Needs to reconstruct two
|
||||
// more block indices.
|
||||
int blkGrpWidth = NUM_DATA_BLOCKS + NUM_PARITY_BLOCKS - 2;
|
||||
assertDecommnNodePosition(blkGrpWidth, decommissionedNodes, lbs);
|
||||
assertBlockIndexAndTokenPosition(lbs, locToIndexList, locToTokenList);
|
||||
}
|
||||
|
||||
/**
|
||||
* Test to verify sorting with multiple in-service and decommissioned
|
||||
* datanodes exists in storage lists.
|
||||
*
|
||||
* We have storage list, marked decommissioned internal blocks with a '
|
||||
* d0, d1, d2, d3, d4, d5, d6, d7, d8, d9, d10, d11, d12, d13
|
||||
* mapping to indices
|
||||
* 0', 1', 2, 3, 4, 5, 6, 7', 8', 0, 1, 7, 8, 1
|
||||
*
|
||||
* Decommissioned node indices: 0', 1', 7', 8'
|
||||
*
|
||||
* Additional In-Service node d13 at the end, block index: 1
|
||||
*
|
||||
* So in the original list nodes d0, d1, d7, d8 are decommissioned state.
|
||||
*
|
||||
* After sorting the expected block indices list will be,
|
||||
* 0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 0', 1', 7', 8'
|
||||
*
|
||||
* After sorting the expected storage list will be,
|
||||
* d9, d10, d2, d3, d4, d5, d6, d11, d12, d13, d0, d1, d7, d8.
|
||||
*
|
||||
* Note: after sorting block indices will not be in ascending order.
|
||||
*/
|
||||
@Test(timeout = 10000)
|
||||
public void testWithMultipleInServiceAndDecommnDatanodes() {
|
||||
LOG.info("Starting test testWithMultipleInServiceAndDecommnDatanodes");
|
||||
int lbsCount = 2; // two located block groups
|
||||
List<Integer> decommnNodeIndices = new ArrayList<>();
|
||||
decommnNodeIndices.add(0);
|
||||
decommnNodeIndices.add(1);
|
||||
decommnNodeIndices.add(7);
|
||||
decommnNodeIndices.add(8);
|
||||
List<Integer> targetNodeIndices = new ArrayList<>();
|
||||
targetNodeIndices.addAll(decommnNodeIndices);
|
||||
|
||||
// at the end add an additional In-Service node to blockIndex=1
|
||||
targetNodeIndices.add(1);
|
||||
|
||||
// map contains decommissioned node details in each located strip block
|
||||
// which will be used for assertions
|
||||
HashMap<Integer, List<String>> decommissionedNodes = new HashMap<>(
|
||||
lbsCount * decommnNodeIndices.size());
|
||||
List<LocatedBlock> lbs = createLocatedStripedBlocks(lbsCount,
|
||||
NUM_DATA_BLOCKS, NUM_PARITY_BLOCKS, decommnNodeIndices,
|
||||
targetNodeIndices, decommissionedNodes);
|
||||
List <DatanodeInfo> staleDns = new ArrayList<>();
|
||||
for (LocatedBlock lb : lbs) {
|
||||
DatanodeInfo[] locations = lb.getLocations();
|
||||
DatanodeInfo staleDn = locations[locations.length - 1];
|
||||
staleDn
|
||||
.setLastUpdateMonotonic(Time.monotonicNow() - (STALE_INTERVAL * 2));
|
||||
staleDns.add(staleDn);
|
||||
}
|
||||
|
||||
// prepare expected block index and token list.
|
||||
List<HashMap<DatanodeInfo, Byte>> locToIndexList = new ArrayList<>();
|
||||
List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList =
|
||||
new ArrayList<>();
|
||||
prepareBlockIndexAndTokenList(lbs, locToIndexList, locToTokenList);
|
||||
|
||||
dm.sortLocatedBlocks(null, lbs);
|
||||
|
||||
assertDecommnNodePosition(BLK_GROUP_WIDTH + 1, decommissionedNodes, lbs);
|
||||
assertBlockIndexAndTokenPosition(lbs, locToIndexList, locToTokenList);
|
||||
|
||||
for (LocatedBlock lb : lbs) {
|
||||
byte[] blockIndices = ((LocatedStripedBlock) lb).getBlockIndices();
|
||||
// after sorting stale block index will be placed after normal nodes.
|
||||
Assert.assertEquals("Failed to move stale node to bottom!", 1,
|
||||
blockIndices[9]);
|
||||
DatanodeInfo[] locations = lb.getLocations();
|
||||
// After sorting stale node d13 will be placed after normal nodes
|
||||
Assert.assertEquals("Failed to move stale dn after normal one!",
|
||||
staleDns.remove(0), locations[9]);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Verify that decommissioned/stale nodes must be positioned after normal
|
||||
* nodes.
|
||||
*/
|
||||
private void assertDecommnNodePosition(int blkGrpWidth,
|
||||
HashMap<Integer, List<String>> decommissionedNodes,
|
||||
List<LocatedBlock> lbs) {
|
||||
for (int i = 0; i < lbs.size(); i++) { // for each block
|
||||
LocatedBlock blk = lbs.get(i);
|
||||
DatanodeInfo[] nodes = blk.getLocations();
|
||||
List<String> decommissionedNodeList = decommissionedNodes.get(i);
|
||||
|
||||
for (int j = 0; j < nodes.length; j++) { // for each replica
|
||||
DatanodeInfo dnInfo = nodes[j];
|
||||
LOG.info("Block Locations size={}, locs={}, j=", nodes.length,
|
||||
dnInfo.toString(), j);
|
||||
if (j < blkGrpWidth) {
|
||||
Assert.assertEquals("Node shouldn't be decommissioned",
|
||||
AdminStates.NORMAL, dnInfo.getAdminState());
|
||||
} else {
|
||||
// check against decommissioned list
|
||||
Assert.assertTrue(
|
||||
"For block " + blk.getBlock() + " decommissioned node " + dnInfo
|
||||
+ " is not last node in list: " + j + "th index of "
|
||||
+ nodes.length,
|
||||
decommissionedNodeList.contains(dnInfo.getXferAddr()));
|
||||
Assert.assertEquals("Node should be decommissioned",
|
||||
AdminStates.DECOMMISSIONED, dnInfo.getAdminState());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private List<LocatedBlock> createLocatedStripedBlocks(int blkGrpCount,
|
||||
int dataNumBlk, int numParityBlk, List<Integer> decommnNodeIndices,
|
||||
List<Integer> targetNodeIndices,
|
||||
HashMap<Integer, List<String>> decommissionedNodes) {
|
||||
|
||||
final List<LocatedBlock> lbs = new ArrayList<>(blkGrpCount);
|
||||
for (int i = 0; i < blkGrpCount; i++) {
|
||||
ArrayList<String> decommNodeInfo = new ArrayList<String>();
|
||||
decommissionedNodes.put(new Integer(i), decommNodeInfo);
|
||||
List<Integer> dummyDecommnNodeIndices = new ArrayList<>();
|
||||
dummyDecommnNodeIndices.addAll(decommnNodeIndices);
|
||||
|
||||
LocatedStripedBlock lsb = createEachLocatedBlock(dataNumBlk, numParityBlk,
|
||||
dummyDecommnNodeIndices, targetNodeIndices, decommNodeInfo);
|
||||
lbs.add(lsb);
|
||||
}
|
||||
return lbs;
|
||||
}
|
||||
|
||||
private LocatedStripedBlock createEachLocatedBlock(int numDataBlk,
|
||||
int numParityBlk, List<Integer> decommnNodeIndices,
|
||||
List<Integer> targetNodeIndices, ArrayList<String> decommNodeInfo) {
|
||||
final long blockGroupID = Long.MIN_VALUE;
|
||||
int totalDns = numDataBlk + numParityBlk + targetNodeIndices.size();
|
||||
DatanodeInfo[] locs = new DatanodeInfo[totalDns];
|
||||
String[] storageIDs = new String[totalDns];
|
||||
StorageType[] storageTypes = new StorageType[totalDns];
|
||||
byte[] blkIndices = new byte[totalDns];
|
||||
|
||||
// Adding data blocks
|
||||
int index = 0;
|
||||
for (; index < numDataBlk; index++) {
|
||||
blkIndices[index] = (byte) index;
|
||||
// Location port always equal to logical index of a block,
|
||||
// for easier verification
|
||||
locs[index] = DFSTestUtil.getLocalDatanodeInfo(blkIndices[index]);
|
||||
locs[index].setLastUpdateMonotonic(Time.monotonicNow());
|
||||
storageIDs[index] = locs[index].getDatanodeUuid();
|
||||
storageTypes[index] = StorageType.DISK;
|
||||
// set decommissioned state
|
||||
if (decommnNodeIndices.contains(index)) {
|
||||
locs[index].setDecommissioned();
|
||||
decommNodeInfo.add(locs[index].toString());
|
||||
// Removing it from the list to ensure that all the given nodes are
|
||||
// successfully marked as decomissioned.
|
||||
decommnNodeIndices.remove(new Integer(index));
|
||||
}
|
||||
}
|
||||
// Adding parity blocks after data blocks
|
||||
index = NUM_DATA_BLOCKS;
|
||||
for (int j = numDataBlk; j < numDataBlk + numParityBlk; j++, index++) {
|
||||
blkIndices[j] = (byte) index;
|
||||
// Location port always equal to logical index of a block,
|
||||
// for easier verification
|
||||
locs[j] = DFSTestUtil.getLocalDatanodeInfo(blkIndices[j]);
|
||||
locs[j].setLastUpdateMonotonic(Time.monotonicNow());
|
||||
storageIDs[j] = locs[j].getDatanodeUuid();
|
||||
storageTypes[j] = StorageType.DISK;
|
||||
// set decommissioned state
|
||||
if (decommnNodeIndices.contains(index)) {
|
||||
locs[j].setDecommissioned();
|
||||
decommNodeInfo.add(locs[j].toString());
|
||||
// Removing it from the list to ensure that all the given nodes are
|
||||
// successfully marked as decomissioned.
|
||||
decommnNodeIndices.remove(new Integer(index));
|
||||
}
|
||||
}
|
||||
// Add extra target nodes to storage list after the parity blocks
|
||||
int basePortValue = NUM_DATA_BLOCKS + NUM_PARITY_BLOCKS;
|
||||
index = numDataBlk + numParityBlk;
|
||||
for (int i = 0; i < targetNodeIndices.size(); i++, index++) {
|
||||
int blkIndexPos = targetNodeIndices.get(i);
|
||||
blkIndices[index] = (byte) blkIndexPos;
|
||||
// Location port always equal to logical index of a block,
|
||||
// for easier verification
|
||||
locs[index] = DFSTestUtil.getLocalDatanodeInfo(basePortValue++);
|
||||
locs[index].setLastUpdateMonotonic(Time.monotonicNow());
|
||||
storageIDs[index] = locs[index].getDatanodeUuid();
|
||||
storageTypes[index] = StorageType.DISK;
|
||||
// set decommissioned state. This can happen, the target node is again
|
||||
// decommissioned by administrator
|
||||
if (decommnNodeIndices.contains(blkIndexPos)) {
|
||||
locs[index].setDecommissioned();
|
||||
decommNodeInfo.add(locs[index].toString());
|
||||
// Removing it from the list to ensure that all the given nodes are
|
||||
// successfully marked as decomissioned.
|
||||
decommnNodeIndices.remove(new Integer(blkIndexPos));
|
||||
}
|
||||
}
|
||||
return new LocatedStripedBlock(
|
||||
new ExtendedBlock("pool", blockGroupID,
|
||||
StripedFileTestUtil.BLOCK_STRIPED_CELL_SIZE, 1001),
|
||||
locs, storageIDs, storageTypes, blkIndices, 0, false, null);
|
||||
}
|
||||
|
||||
private static DatanodeManager mockDatanodeManager() throws IOException {
|
||||
Configuration conf = new Configuration();
|
||||
conf.setBoolean(
|
||||
DFSConfigKeys.DFS_NAMENODE_AVOID_STALE_DATANODE_FOR_READ_KEY, true);
|
||||
conf.setLong(DFSConfigKeys.DFS_NAMENODE_STALE_DATANODE_INTERVAL_KEY,
|
||||
STALE_INTERVAL);
|
||||
FSNamesystem fsn = Mockito.mock(FSNamesystem.class);
|
||||
BlockManager bm = Mockito.mock(BlockManager.class);
|
||||
BlockReportLeaseManager blm = new BlockReportLeaseManager(conf);
|
||||
Mockito.when(bm.getBlockReportLeaseManager()).thenReturn(blm);
|
||||
DatanodeManager dm = new DatanodeManager(bm, fsn, conf);
|
||||
return dm;
|
||||
}
|
||||
|
||||
private void prepareBlockIndexAndTokenList(List<LocatedBlock> lbs,
|
||||
List<HashMap<DatanodeInfo, Byte>> locToIndexList,
|
||||
List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList) {
|
||||
for (LocatedBlock lb : lbs) {
|
||||
HashMap<DatanodeInfo, Byte> locToIndex = new HashMap<DatanodeInfo, Byte>();
|
||||
locToIndexList.add(locToIndex);
|
||||
|
||||
HashMap<DatanodeInfo, Token<BlockTokenIdentifier>> locToToken =
|
||||
new HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>();
|
||||
locToTokenList.add(locToToken);
|
||||
|
||||
DatanodeInfo[] di = lb.getLocations();
|
||||
LocatedStripedBlock stripedBlk = (LocatedStripedBlock) lb;
|
||||
for (int i = 0; i < di.length; i++) {
|
||||
locToIndex.put(di[i], stripedBlk.getBlockIndices()[i]);
|
||||
locToToken.put(di[i], stripedBlk.getBlockTokens()[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Verify block index and token values. Must update block indices and block
|
||||
* tokens after sorting.
|
||||
*/
|
||||
private void assertBlockIndexAndTokenPosition(List<LocatedBlock> lbs,
|
||||
List<HashMap<DatanodeInfo, Byte>> locToIndexList,
|
||||
List<HashMap<DatanodeInfo, Token<BlockTokenIdentifier>>> locToTokenList) {
|
||||
for (int i = 0; i < lbs.size(); i++) {
|
||||
LocatedBlock lb = lbs.get(i);
|
||||
LocatedStripedBlock stripedBlk = (LocatedStripedBlock) lb;
|
||||
HashMap<DatanodeInfo, Byte> locToIndex = locToIndexList.get(i);
|
||||
HashMap<DatanodeInfo, Token<BlockTokenIdentifier>> locToToken =
|
||||
locToTokenList.get(i);
|
||||
DatanodeInfo[] di = lb.getLocations();
|
||||
for (int j = 0; j < di.length; j++) {
|
||||
Assert.assertEquals("Block index value mismatches after sorting",
|
||||
(byte) locToIndex.get(di[j]), stripedBlk.getBlockIndices()[j]);
|
||||
Assert.assertEquals("Block token value mismatches after sorting",
|
||||
locToToken.get(di[j]), stripedBlk.getBlockTokens()[j]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue