HDFS-6663. Admin command to track file and locations from block id.
Contributed by Chen He.
(cherry picked from commit 371a3b87ed)
Conflicts:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSck.java
This commit is contained in:
Kihwal Lee
parent
43a53f2b65
commit
dabaf582eb
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@ -9,6 +9,9 @@ Release 2.7.0 - UNRELEASED
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HDFS-7278. Add a command that allows sysadmins to manually trigger full
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block reports from a DN (cmccabe)
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HDFS-6663. Admin command to track file and locations from block id.
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(Chen He via kihwal)
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IMPROVEMENTS
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HDFS-7055. Add tracing to DFSInputStream (cmccabe)
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@ -3503,6 +3503,13 @@ public class BlockManager {
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return corruptReplicas.getNodes(block);
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}
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/**
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* Get reason for certain corrupted replicas for a given block and a given dn.
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*/
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public String getCorruptReason(Block block, DatanodeDescriptor node) {
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return corruptReplicas.getCorruptReason(block, node);
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}
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/** @return the size of UnderReplicatedBlocks */
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public int numOfUnderReplicatedBlocks() {
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return neededReplications.size();
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@ -223,5 +223,26 @@ public class CorruptReplicasMap{
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}
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return ret;
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}
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}
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/**
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* return the reason about corrupted replica for a given block
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* on a given dn
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* @param block block that has corrupted replica
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* @param node datanode that contains this corrupted replica
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* @return reason
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*/
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String getCorruptReason(Block block, DatanodeDescriptor node) {
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Reason reason = null;
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if(corruptReplicasMap.containsKey(block)) {
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if (corruptReplicasMap.get(block).containsKey(node)) {
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reason = corruptReplicasMap.get(block).get(node);
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}
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}
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if (reason != null) {
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return reason.toString();
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} else {
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return null;
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}
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}
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}
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@ -47,6 +47,7 @@ import org.apache.hadoop.hdfs.DFSUtil;
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import org.apache.hadoop.hdfs.RemotePeerFactory;
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import org.apache.hadoop.hdfs.net.Peer;
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import org.apache.hadoop.hdfs.net.TcpPeerServer;
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import org.apache.hadoop.hdfs.protocol.Block;
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import org.apache.hadoop.hdfs.protocol.DatanodeID;
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import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
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import org.apache.hadoop.hdfs.protocol.DirectoryListing;
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@ -59,8 +60,12 @@ import org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus;
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import org.apache.hadoop.hdfs.protocol.datatransfer.sasl.DataEncryptionKeyFactory;
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import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
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import org.apache.hadoop.hdfs.security.token.block.DataEncryptionKey;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockCollection;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementStatus;
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import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor;
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import org.apache.hadoop.hdfs.server.blockmanagement.NumberReplicas;
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import org.apache.hadoop.hdfs.server.common.HdfsServerConstants;
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import org.apache.hadoop.hdfs.server.datanode.CachingStrategy;
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@ -103,6 +108,8 @@ public class NamenodeFsck implements DataEncryptionKeyFactory {
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// return string marking fsck status
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public static final String CORRUPT_STATUS = "is CORRUPT";
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public static final String HEALTHY_STATUS = "is HEALTHY";
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public static final String DECOMMISSIONING_STATUS = "is DECOMMISSIONING";
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public static final String DECOMMISSIONED_STATUS = "is DECOMMISSIONED";
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public static final String NONEXISTENT_STATUS = "does not exist";
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public static final String FAILURE_STATUS = "FAILED";
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@ -142,7 +149,9 @@ public class NamenodeFsck implements DataEncryptionKeyFactory {
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*/
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private boolean doDelete = false;
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private String path = "/";
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String path = "/";
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private String blockIds = null;
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// We return back N files that are corrupt; the list of files returned is
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// ordered by block id; to allow continuation support, pass in the last block
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@ -193,21 +202,112 @@ public class NamenodeFsck implements DataEncryptionKeyFactory {
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else if (key.equals("openforwrite")) {this.showOpenFiles = true; }
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else if (key.equals("listcorruptfileblocks")) {
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this.showCorruptFileBlocks = true;
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}
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else if (key.equals("startblockafter")) {
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} else if (key.equals("startblockafter")) {
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this.currentCookie[0] = pmap.get("startblockafter")[0];
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} else if (key.equals("includeSnapshots")) {
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this.snapshottableDirs = new ArrayList<String>();
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} else if (key.equals("blockId")) {
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this.blockIds = pmap.get("blockId")[0];
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}
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}
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}
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/**
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* Check block information given a blockId number
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*
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*/
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public void blockIdCK(String blockId) {
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if(blockId == null) {
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out.println("Please provide valid blockId!");
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return;
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}
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BlockManager bm = namenode.getNamesystem().getBlockManager();
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try {
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//get blockInfo
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Block block = new Block(Block.getBlockId(blockId));
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//find which file this block belongs to
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BlockInfo blockInfo = bm.getStoredBlock(block);
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if(blockInfo == null) {
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out.println("Block "+ blockId +" " + NONEXISTENT_STATUS);
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LOG.warn("Block "+ blockId + " " + NONEXISTENT_STATUS);
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return;
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}
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BlockCollection bc = bm.getBlockCollection(blockInfo);
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INode iNode = (INode) bc;
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NumberReplicas numberReplicas= bm.countNodes(block);
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out.println("Block Id: " + blockId);
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out.println("Block belongs to: "+iNode.getFullPathName());
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out.println("No. of Expected Replica: " + bc.getBlockReplication());
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out.println("No. of live Replica: " + numberReplicas.liveReplicas());
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out.println("No. of excess Replica: " + numberReplicas.excessReplicas());
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out.println("No. of stale Replica: " + numberReplicas.replicasOnStaleNodes());
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out.println("No. of decommission Replica: "
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+ numberReplicas.decommissionedReplicas());
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out.println("No. of corrupted Replica: " + numberReplicas.corruptReplicas());
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//record datanodes that have corrupted block replica
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Collection<DatanodeDescriptor> corruptionRecord = null;
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if (bm.getCorruptReplicas(block) != null) {
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corruptionRecord = bm.getCorruptReplicas(block);
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}
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//report block replicas status on datanodes
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for(int idx = (blockInfo.numNodes()-1); idx >= 0; idx--) {
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DatanodeDescriptor dn = blockInfo.getDatanode(idx);
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out.print("Block replica on datanode/rack: " + dn.getHostName() +
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dn.getNetworkLocation() + " ");
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if (corruptionRecord != null && corruptionRecord.contains(dn)) {
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out.print(CORRUPT_STATUS+"\t ReasonCode: "+
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bm.getCorruptReason(block,dn));
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} else if (dn.isDecommissioned() ){
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out.print(DECOMMISSIONED_STATUS);
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} else if (dn.isDecommissionInProgress()) {
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out.print(DECOMMISSIONING_STATUS);
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} else {
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out.print(HEALTHY_STATUS);
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}
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out.print("\n");
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}
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} catch (Exception e){
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String errMsg = "Fsck on blockId '" + blockId;
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LOG.warn(errMsg, e);
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out.println(e.getMessage());
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out.print("\n\n" + errMsg);
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LOG.warn("Error in looking up block", e);
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}
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}
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/**
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* Check files on DFS, starting from the indicated path.
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*/
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public void fsck() {
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final long startTime = Time.now();
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try {
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if(blockIds != null) {
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String[] blocks = blockIds.split(" ");
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StringBuilder sb = new StringBuilder();
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sb.append("FSCK started by " +
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UserGroupInformation.getCurrentUser() + " from " +
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remoteAddress + " at " + new Date());
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out.println(sb.toString());
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sb.append(" for blockIds: \n");
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for (String blk: blocks) {
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if(blk == null || !blk.contains("blk_")) {
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out.println("Incorrect blockId format: " + blk);
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continue;
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}
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out.print("\n");
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blockIdCK(blk);
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sb.append(blk + "\n");
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}
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LOG.info(sb.toString());
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namenode.getNamesystem().logFsckEvent("/", remoteAddress);
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out.flush();
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return;
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}
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String msg = "FSCK started by " + UserGroupInformation.getCurrentUser()
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+ " from " + remoteAddress + " for path " + path + " at " + new Date();
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LOG.info(msg);
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@ -91,6 +91,9 @@ public class DFSck extends Configured implements Tool {
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+ "\t-blocks\tprint out block report\n"
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+ "\t-locations\tprint out locations for every block\n"
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+ "\t-racks\tprint out network topology for data-node locations\n\n"
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+ "\t-blockId\tprint out which file this blockId belongs to, locations"
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+ " (nodes, racks) of this block, and other diagnostics info"
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+ " (under replicated, corrupted or not, etc)\n\n"
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+ "Please Note:\n"
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+ "\t1. By default fsck ignores files opened for write, "
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+ "use -openforwrite to report such files. They are usually "
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@ -275,6 +278,15 @@ public class DFSck extends Configured implements Tool {
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doListCorruptFileBlocks = true;
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} else if (args[idx].equals("-includeSnapshots")) {
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url.append("&includeSnapshots=1");
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} else if (args[idx].equals("-blockId")) {
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StringBuilder sb = new StringBuilder();
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idx++;
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while(idx < args.length && !args[idx].startsWith("-")){
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sb.append(args[idx]);
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sb.append(" ");
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idx++;
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}
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url.append("&blockId=").append(URLEncoder.encode(sb.toString(), "UTF-8"));
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} else if (!args[idx].startsWith("-")) {
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if (null == dir) {
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dir = args[idx];
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@ -284,6 +296,7 @@ public class DFSck extends Configured implements Tool {
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printUsage(System.err);
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return -1;
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}
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} else {
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System.err.println("fsck: Illegal option '" + args[idx] + "'");
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printUsage(System.err);
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@ -324,6 +337,12 @@ public class DFSck extends Configured implements Tool {
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errCode = 1;
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} else if (lastLine.endsWith(NamenodeFsck.NONEXISTENT_STATUS)) {
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errCode = 0;
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} else if (lastLine.contains("Incorrect blockId format:")) {
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errCode = 0;
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} else if (lastLine.endsWith(NamenodeFsck.DECOMMISSIONED_STATUS)) {
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errCode = 2;
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} else if (lastLine.endsWith(NamenodeFsck.DECOMMISSIONING_STATUS)) {
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errCode = 3;
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}
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return errCode;
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}
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@ -18,13 +18,6 @@
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package org.apache.hadoop.hdfs.server.namenode;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertNull;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import java.io.BufferedReader;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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@ -48,6 +41,7 @@ import java.util.Set;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import com.google.common.collect.Sets;
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import org.apache.commons.logging.impl.Log4JLogger;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataOutputStream;
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@ -66,11 +60,14 @@ import org.apache.hadoop.hdfs.HdfsConfiguration;
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import org.apache.hadoop.hdfs.MiniDFSCluster;
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import org.apache.hadoop.hdfs.protocol.Block;
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import org.apache.hadoop.hdfs.protocol.CorruptFileBlocks;
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import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
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import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
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import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
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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.server.blockmanagement.BlockInfo;
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import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
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import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor;
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import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager;
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import org.apache.hadoop.hdfs.server.namenode.NamenodeFsck.Result;
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import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols;
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@ -86,8 +83,17 @@ import org.apache.log4j.PatternLayout;
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import org.apache.log4j.RollingFileAppender;
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import org.junit.Test;
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import com.google.common.collect.Sets;
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import static org.mockito.Mockito.*;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertNull;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import static org.mockito.Matchers.anyBoolean;
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import static org.mockito.Matchers.anyLong;
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import static org.mockito.Matchers.anyString;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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/**
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* A JUnit test for doing fsck
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@ -118,7 +124,7 @@ public class TestFsck {
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System.getProperty("line.separator");
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static String runFsck(Configuration conf, int expectedErrCode,
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boolean checkErrorCode,String... path)
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boolean checkErrorCode,String... path)
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throws Exception {
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ByteArrayOutputStream bStream = new ByteArrayOutputStream();
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PrintStream out = new PrintStream(bStream, true);
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@ -1096,4 +1102,227 @@ public class TestFsck {
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cluster.shutdown();
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}
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}
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/**
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* Test for blockIdCK
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*/
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@Test
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public void testBlockIdCK() throws Exception {
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final short REPL_FACTOR = 2;
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short NUM_DN = 2;
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final long blockSize = 512;
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String [] racks = {"/rack1", "/rack2"};
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String [] hosts = {"host1", "host2"};
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Configuration conf = new Configuration();
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conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
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conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 2);
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MiniDFSCluster cluster = null;
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DistributedFileSystem dfs = null;
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cluster =
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new MiniDFSCluster.Builder(conf).numDataNodes(NUM_DN).hosts(hosts)
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.racks(racks).build();
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assertNotNull("Failed Cluster Creation", cluster);
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cluster.waitClusterUp();
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dfs = cluster.getFileSystem();
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assertNotNull("Failed to get FileSystem", dfs);
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DFSTestUtil util = new DFSTestUtil.Builder().
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setName(getClass().getSimpleName()).setNumFiles(1).build();
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//create files
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final String pathString = new String("/testfile");
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final Path path = new Path(pathString);
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util.createFile(dfs, path, 1024, REPL_FACTOR , 1000L);
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util.waitReplication(dfs, path, REPL_FACTOR);
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StringBuilder sb = new StringBuilder();
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for (LocatedBlock lb: util.getAllBlocks(dfs, path)){
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sb.append(lb.getBlock().getLocalBlock().getBlockName()+" ");
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}
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String[] bIds = sb.toString().split(" ");
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//run fsck
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try {
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//illegal input test
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String runFsckResult = runFsck(conf, 0, true, "/", "-blockId",
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"not_a_block_id");
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assertTrue(runFsckResult.contains("Incorrect blockId format:"));
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//general test
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runFsckResult = runFsck(conf, 0, true, "/", "-blockId", sb.toString());
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assertTrue(runFsckResult.contains(bIds[0]));
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assertTrue(runFsckResult.contains(bIds[1]));
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assertTrue(runFsckResult.contains(
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"Block replica on datanode/rack: host1/rack1 is HEALTHY"));
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assertTrue(runFsckResult.contains(
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"Block replica on datanode/rack: host2/rack2 is HEALTHY"));
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} finally {
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cluster.shutdown();
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}
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}
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/**
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* Test for blockIdCK with datanode decommission
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*/
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@Test
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public void testBlockIdCKDecommission() throws Exception {
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final short REPL_FACTOR = 1;
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short NUM_DN = 2;
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final long blockSize = 512;
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boolean checkDecommissionInProgress = false;
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String [] racks = {"/rack1", "/rack2"};
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String [] hosts = {"host1", "host2"};
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Configuration conf = new Configuration();
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conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
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conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 2);
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MiniDFSCluster cluster;
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DistributedFileSystem dfs ;
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cluster =
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new MiniDFSCluster.Builder(conf).numDataNodes(NUM_DN).hosts(hosts)
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.racks(racks).build();
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assertNotNull("Failed Cluster Creation", cluster);
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cluster.waitClusterUp();
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dfs = cluster.getFileSystem();
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assertNotNull("Failed to get FileSystem", dfs);
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DFSTestUtil util = new DFSTestUtil.Builder().
|
||||
setName(getClass().getSimpleName()).setNumFiles(1).build();
|
||||
//create files
|
||||
final String pathString = new String("/testfile");
|
||||
final Path path = new Path(pathString);
|
||||
util.createFile(dfs, path, 1024, REPL_FACTOR, 1000L);
|
||||
util.waitReplication(dfs, path, REPL_FACTOR);
|
||||
StringBuilder sb = new StringBuilder();
|
||||
for (LocatedBlock lb: util.getAllBlocks(dfs, path)){
|
||||
sb.append(lb.getBlock().getLocalBlock().getBlockName()+" ");
|
||||
}
|
||||
String[] bIds = sb.toString().split(" ");
|
||||
try {
|
||||
//make sure datanode that has replica is fine before decommission
|
||||
String outStr = runFsck(conf, 0, true, "/", "-blockId", bIds[0]);
|
||||
System.out.println(outStr);
|
||||
assertTrue(outStr.contains(NamenodeFsck.HEALTHY_STATUS));
|
||||
|
||||
//decommission datanode
|
||||
ExtendedBlock eb = util.getFirstBlock(dfs, path);
|
||||
DatanodeDescriptor dn = cluster.getNameNode().getNamesystem()
|
||||
.getBlockManager().getBlockCollection(eb.getLocalBlock())
|
||||
.getBlocks()[0].getDatanode(0);
|
||||
cluster.getNameNode().getNamesystem().getBlockManager()
|
||||
.getDatanodeManager().startDecommission(dn);
|
||||
String dnName = dn.getXferAddr();
|
||||
|
||||
//wait for decommission start
|
||||
DatanodeInfo datanodeInfo = null;
|
||||
int count = 0;
|
||||
do {
|
||||
Thread.sleep(2000);
|
||||
for (DatanodeInfo info : dfs.getDataNodeStats()) {
|
||||
if (dnName.equals(info.getXferAddr())) {
|
||||
datanodeInfo = info;
|
||||
}
|
||||
}
|
||||
//check decommissioning only once
|
||||
if(!checkDecommissionInProgress && datanodeInfo != null
|
||||
&& datanodeInfo.isDecommissionInProgress()) {
|
||||
String fsckOut = runFsck(conf, 3, true, "/", "-blockId", bIds[0]);
|
||||
assertTrue(fsckOut.contains(NamenodeFsck.DECOMMISSIONING_STATUS));
|
||||
checkDecommissionInProgress = true;
|
||||
}
|
||||
} while (datanodeInfo != null && !datanodeInfo.isDecommissioned());
|
||||
|
||||
//check decommissioned
|
||||
String fsckOut = runFsck(conf, 2, true, "/", "-blockId", bIds[0]);
|
||||
assertTrue(fsckOut.contains(NamenodeFsck.DECOMMISSIONED_STATUS));
|
||||
} finally {
|
||||
if (cluster != null) {
|
||||
cluster.shutdown();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Test for blockIdCK with block corruption
|
||||
*/
|
||||
@Test
|
||||
public void testBlockIdCKCorruption() throws Exception {
|
||||
short NUM_DN = 1;
|
||||
final long blockSize = 512;
|
||||
Random random = new Random();
|
||||
DFSClient dfsClient;
|
||||
LocatedBlocks blocks;
|
||||
ExtendedBlock block;
|
||||
short repFactor = 1;
|
||||
String [] racks = {"/rack1"};
|
||||
String [] hosts = {"host1"};
|
||||
|
||||
Configuration conf = new Configuration();
|
||||
conf.setLong(DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_KEY, 1000);
|
||||
// Set short retry timeouts so this test runs faster
|
||||
conf.setInt(DFSConfigKeys.DFS_CLIENT_RETRY_WINDOW_BASE, 10);
|
||||
conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize);
|
||||
conf.setInt(DFSConfigKeys.DFS_REPLICATION_KEY, 1);
|
||||
|
||||
MiniDFSCluster cluster = null;
|
||||
DistributedFileSystem dfs = null;
|
||||
try {
|
||||
cluster =
|
||||
new MiniDFSCluster.Builder(conf).numDataNodes(NUM_DN).hosts(hosts)
|
||||
.racks(racks).build();
|
||||
|
||||
assertNotNull("Failed Cluster Creation", cluster);
|
||||
cluster.waitClusterUp();
|
||||
dfs = cluster.getFileSystem();
|
||||
assertNotNull("Failed to get FileSystem", dfs);
|
||||
|
||||
DFSTestUtil util = new DFSTestUtil.Builder().
|
||||
setName(getClass().getSimpleName()).setNumFiles(1).build();
|
||||
//create files
|
||||
final String pathString = new String("/testfile");
|
||||
final Path path = new Path(pathString);
|
||||
util.createFile(dfs, path, 1024, repFactor, 1000L);
|
||||
util.waitReplication(dfs, path, repFactor);
|
||||
StringBuilder sb = new StringBuilder();
|
||||
for (LocatedBlock lb: util.getAllBlocks(dfs, path)){
|
||||
sb.append(lb.getBlock().getLocalBlock().getBlockName()+" ");
|
||||
}
|
||||
String[] bIds = sb.toString().split(" ");
|
||||
|
||||
//make sure block is healthy before we corrupt it
|
||||
String outStr = runFsck(conf, 0, true, "/", "-blockId", bIds[0]);
|
||||
System.out.println(outStr);
|
||||
assertTrue(outStr.contains(NamenodeFsck.HEALTHY_STATUS));
|
||||
|
||||
// corrupt replicas
|
||||
block = DFSTestUtil.getFirstBlock(dfs, path);
|
||||
File blockFile = MiniDFSCluster.getBlockFile(0, block);
|
||||
if (blockFile != null && blockFile.exists()) {
|
||||
RandomAccessFile raFile = new RandomAccessFile(blockFile, "rw");
|
||||
FileChannel channel = raFile.getChannel();
|
||||
String badString = "BADBAD";
|
||||
int rand = random.nextInt((int) channel.size()/2);
|
||||
raFile.seek(rand);
|
||||
raFile.write(badString.getBytes());
|
||||
raFile.close();
|
||||
}
|
||||
|
||||
util.waitCorruptReplicas(dfs, cluster.getNamesystem(), path, block, 1);
|
||||
|
||||
outStr = runFsck(conf, 1, false, "/", "-blockId", block.getBlockName());
|
||||
System.out.println(outStr);
|
||||
assertTrue(outStr.contains(NamenodeFsck.CORRUPT_STATUS));
|
||||
} finally {
|
||||
if (cluster != null) {
|
||||
cluster.shutdown();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue