HDFS-12443. Ozone: Improve SCM block deletion throttling algorithm. Contributed by Yiqun Lin.
This commit is contained in:
Yiqun Lin
Owen O'Malley
parent
7ebe79e879
commit
132f30c8ea
@ -165,7 +165,7 @@ private void deleteContainerBlocks(DeletedBlocksTransaction delTX,
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try {
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containerDB.writeBatch(batch);
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newDeletionBlocks++;
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LOG.info("Transited Block {} to DELETING state in container {}",
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LOG.debug("Transited Block {} to DELETING state in container {}",
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blk, containerId);
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} catch (IOException e) {
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// if some blocks failed to delete, we fail this TX,
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@ -175,7 +175,7 @@ private void deleteContainerBlocks(DeletedBlocksTransaction delTX,
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"Failed to delete blocks for TXID = " + delTX.getTxID(), e);
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}
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} else {
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LOG.info("Block {} not found or already under deletion in"
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LOG.debug("Block {} not found or already under deletion in"
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+ " container {}, skip deleting it.", blk, containerId);
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}
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}
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@ -811,7 +811,8 @@ public ContainerBlocksDeletionACKResponseProto sendContainerBlocksDeletionACK(
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+ "success={}", result.getTxID(), result.getSuccess());
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}
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if (result.getSuccess()) {
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LOG.info("Purging TXID={} from block deletion log", result.getTxID());
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LOG.debug("Purging TXID={} from block deletion log",
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result.getTxID());
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this.getScmBlockManager().getDeletedBlockLog()
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.commitTransactions(Collections.singletonList(result.getTxID()));
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} else {
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@ -78,4 +78,9 @@ AllocatedBlock allocateBlock(long size, OzoneProtos.ReplicationType type,
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* @throws IOException
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*/
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void stop() throws IOException;
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/**
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* @return the block deleting service executed in SCM.
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*/
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SCMBlockDeletingService getSCMBlockDeletingService();
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}
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@ -148,7 +148,7 @@ public BlockManagerImpl(final Configuration conf,
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blockDeletingService =
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new SCMBlockDeletingService(
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deletedBlockLog, containerManager, nodeManager, svcInterval,
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serviceTimeout);
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serviceTimeout, conf);
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}
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/**
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@ -525,4 +525,9 @@ public int getOpenContainersNo() {
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// factor. Hence returning 0 for now.
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// containers.get(OzoneProtos.LifeCycleState.OPEN).size();
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}
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@Override
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public SCMBlockDeletingService getSCMBlockDeletingService() {
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return this.blockDeletingService;
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}
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}
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@ -0,0 +1,130 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with this
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* work for additional information regarding copyright ownership. The ASF
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* licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package org.apache.hadoop.ozone.scm.block;
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import java.io.IOException;
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import java.util.Collections;
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import java.util.List;
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import java.util.Set;
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import java.util.stream.Collectors;
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import org.apache.hadoop.hdfs.protocol.DatanodeID;
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import org.apache.hadoop.ozone.protocol.proto.StorageContainerDatanodeProtocolProtos.DeletedBlocksTransaction;
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import org.apache.hadoop.ozone.scm.container.Mapping;
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import org.apache.hadoop.scm.container.common.helpers.ContainerInfo;
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import com.google.common.collect.ArrayListMultimap;
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/**
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* A wrapper class to hold info about datanode and all deleted block
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* transactions that will be sent to this datanode.
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*/
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public class DatanodeDeletedBlockTransactions {
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private int nodeNum;
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// The throttle size for each datanode.
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private int maximumAllowedTXNum;
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// Current counter of inserted TX.
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private int currentTXNum;
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private Mapping mappingService;
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// A list of TXs mapped to a certain datanode ID.
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private final ArrayListMultimap<DatanodeID, DeletedBlocksTransaction>
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transactions;
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DatanodeDeletedBlockTransactions(Mapping mappingService,
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int maximumAllowedTXNum, int nodeNum) {
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this.transactions = ArrayListMultimap.create();
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this.mappingService = mappingService;
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this.maximumAllowedTXNum = maximumAllowedTXNum;
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this.nodeNum = nodeNum;
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}
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public void addTransaction(DeletedBlocksTransaction tx) throws IOException {
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ContainerInfo info = null;
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try {
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info = mappingService.getContainer(tx.getContainerName());
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} catch (IOException e) {
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SCMBlockDeletingService.LOG.warn("Got container info error.", e);
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}
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if (info == null) {
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SCMBlockDeletingService.LOG.warn(
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"Container {} not found, continue to process next",
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tx.getContainerName());
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return;
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}
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for (DatanodeID dnID : info.getPipeline().getMachines()) {
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if (transactions.containsKey(dnID)) {
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List<DeletedBlocksTransaction> txs = transactions.get(dnID);
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if (txs != null && txs.size() < maximumAllowedTXNum) {
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boolean hasContained = false;
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for (DeletedBlocksTransaction t : txs) {
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if (t.getContainerName().equals(tx.getContainerName())) {
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hasContained = true;
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break;
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}
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}
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if (!hasContained) {
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txs.add(tx);
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currentTXNum++;
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}
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}
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} else {
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currentTXNum++;
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transactions.put(dnID, tx);
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}
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SCMBlockDeletingService.LOG.debug("Transaction added: {} <- TX({})", dnID,
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tx.getTxID());
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}
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}
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Set<DatanodeID> getDatanodes() {
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return transactions.keySet();
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}
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boolean isEmpty() {
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return transactions.isEmpty();
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}
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boolean hasTransactions(DatanodeID dnID) {
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return transactions.containsKey(dnID) && !transactions.get(dnID).isEmpty();
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}
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List<DeletedBlocksTransaction> getDatanodeTransactions(
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DatanodeID dnID) {
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return transactions.get(dnID);
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}
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List<String> getTransactionIDList(DatanodeID dnID) {
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if (hasTransactions(dnID)) {
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return transactions.get(dnID).stream()
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.map(DeletedBlocksTransaction::getTxID).map(String::valueOf)
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.collect(Collectors.toList());
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} else {
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return Collections.emptyList();
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}
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}
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boolean isFull() {
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return currentTXNum >= maximumAllowedTXNum * nodeNum;
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}
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int getTXNum() {
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return currentTXNum;
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}
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}
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@ -45,6 +45,16 @@ public interface DeletedBlockLog extends Closeable {
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List<DeletedBlocksTransaction> getTransactions(int count)
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throws IOException;
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/**
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* Scan entire log once and returns TXs to DatanodeDeletedBlockTransactions.
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* Once DatanodeDeletedBlockTransactions is full, the scan behavior will
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* stop.
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* @param transactions a list of TXs will be set into.
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* @throws IOException
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*/
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void getTransactions(DatanodeDeletedBlockTransactions transactions)
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throws IOException;
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/**
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* Return all failed transactions in the log. A transaction is considered
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* to be failed if it has been sent more than MAX_RETRY limit and its
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@ -326,4 +326,26 @@ public void close() throws IOException {
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deletedStore.close();
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}
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}
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@Override
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public void getTransactions(DatanodeDeletedBlockTransactions transactions)
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throws IOException {
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lock.lock();
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try {
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deletedStore.iterate(null, (key, value) -> {
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if (!Arrays.equals(LATEST_TXID, key)) {
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DeletedBlocksTransaction block = DeletedBlocksTransaction
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.parseFrom(value);
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if (block.getCount() > -1 && block.getCount() <= maxRetry) {
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transactions.addTransaction(block);
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}
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return !transactions.isFull();
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}
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return true;
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});
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} finally {
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lock.unlock();
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}
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}
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}
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@ -16,14 +16,16 @@
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*/
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package org.apache.hadoop.ozone.scm.block;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Maps;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.common.base.Preconditions;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.hdfs.protocol.DatanodeID;
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import org.apache.hadoop.ozone.protocol.commands.DeleteBlocksCommand;
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import org.apache.hadoop.ozone.protocol.proto.OzoneProtos.NodeState;
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import org.apache.hadoop.ozone.protocol.proto.StorageContainerDatanodeProtocolProtos.DeletedBlocksTransaction;
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import org.apache.hadoop.ozone.scm.container.Mapping;
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import org.apache.hadoop.ozone.scm.node.NodeManager;
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import org.apache.hadoop.scm.container.common.helpers.ContainerInfo;
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import org.apache.hadoop.util.Time;
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import org.apache.hadoop.utils.BackgroundService;
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import org.apache.hadoop.utils.BackgroundTask;
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@ -32,13 +34,12 @@
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_BLOCK_DELETING_CONTAINER_LIMIT_PER_INTERVAL;
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import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_BLOCK_DELETING_CONTAINER_LIMIT_PER_INTERVAL_DEFAULT;
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import java.io.IOException;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.concurrent.TimeUnit;
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import java.util.stream.Collectors;
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/**
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* A background service running in SCM to delete blocks. This service scans
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@ -49,7 +50,7 @@
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*/
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public class SCMBlockDeletingService extends BackgroundService {
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private static final Logger LOG =
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static final Logger LOG =
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LoggerFactory.getLogger(SCMBlockDeletingService.class);
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// ThreadPoolSize=2, 1 for scheduler and the other for the scanner.
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@ -58,28 +59,36 @@ public class SCMBlockDeletingService extends BackgroundService {
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private final Mapping mappingService;
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private final NodeManager nodeManager;
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// Default container size is 5G and block size is 256MB, a full container
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// at most contains 20 blocks. At most each TX contains 20 blocks.
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// When SCM sends block deletion TXs to datanode, each command we allow
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// at most 50 containers so that will limit number of to be deleted blocks
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// less than 1000.
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// TODO - a better throttle algorithm
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// Note, this is not an accurate limit of blocks. When we scan
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// the log, worst case we may get 50 TX for 50 different datanodes,
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// that will cause the deletion message sent by SCM extremely small.
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// As a result, the deletion will be slow. An improvement is to scan
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// log multiple times until we get enough TXs for each datanode, or
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// the entire log is scanned.
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private static final int BLOCK_DELETE_TX_PER_REQUEST_LIMIT = 50;
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// Block delete limit size is dynamically calculated based on container
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// delete limit size (ozone.block.deleting.container.limit.per.interval)
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// that configured for datanode. To ensure DN not wait for
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// delete commands, we use this value multiply by a factor 2 as the final
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// limit TX size for each node.
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// Currently we implement a throttle algorithm that throttling delete blocks
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// for each datanode. Each node is limited by the calculation size. Firstly
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// current node info is fetched from nodemanager, then scan entire delLog
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// from the beginning to end. If one node reaches maximum value, its records
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// will be skipped. If not, keep scanning until it reaches maximum value.
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// Once all node are full, the scan behavior will stop.
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private int blockDeleteLimitSize;
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public SCMBlockDeletingService(DeletedBlockLog deletedBlockLog,
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Mapping mapper, NodeManager nodeManager,
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int interval, long serviceTimeout) {
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int interval, long serviceTimeout, Configuration conf) {
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super("SCMBlockDeletingService", interval, TimeUnit.MILLISECONDS,
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BLOCK_DELETING_SERVICE_CORE_POOL_SIZE, serviceTimeout);
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this.deletedBlockLog = deletedBlockLog;
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this.mappingService = mapper;
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this.nodeManager = nodeManager;
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int containerLimit = conf.getInt(
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OZONE_BLOCK_DELETING_CONTAINER_LIMIT_PER_INTERVAL,
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OZONE_BLOCK_DELETING_CONTAINER_LIMIT_PER_INTERVAL_DEFAULT);
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Preconditions.checkArgument(containerLimit > 0,
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"Container limit size should be " + "positive.");
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// Use container limit value multiply by a factor 2 to ensure DN
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// not wait for orders.
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this.blockDeleteLimitSize = containerLimit * 2;
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}
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@Override
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@ -104,126 +113,60 @@ public EmptyTaskResult call() throws Exception {
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// Scan SCM DB in HB interval and collect a throttled list of
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// to delete blocks.
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LOG.debug("Running DeletedBlockTransactionScanner");
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DatanodeDeletedBlockTransactions transactions =
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getToDeleteContainerBlocks();
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DatanodeDeletedBlockTransactions transactions = null;
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List<DatanodeID> datanodes = nodeManager.getNodes(NodeState.HEALTHY);
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if (datanodes != null) {
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transactions = new DatanodeDeletedBlockTransactions(mappingService,
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blockDeleteLimitSize, datanodes.size());
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try {
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deletedBlockLog.getTransactions(transactions);
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} catch (IOException e) {
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// We may tolerant a number of failures for sometime
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// but if it continues to fail, at some point we need to raise
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// an exception and probably fail the SCM ? At present, it simply
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// continues to retry the scanning.
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LOG.error("Failed to get block deletion transactions from delTX log",
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e);
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}
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LOG.debug("Scanned deleted blocks log and got {} delTX to process.",
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transactions.getTXNum());
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}
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if (transactions != null && !transactions.isEmpty()) {
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for (DatanodeID datanodeID : transactions.getDatanodes()) {
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List<DeletedBlocksTransaction> dnTXs = transactions
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.getDatanodeTransactions(datanodeID);
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dnTxCount += dnTXs.size();
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// TODO commandQueue needs a cap.
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// We should stop caching new commands if num of un-processed
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// command is bigger than a limit, e.g 50. In case datanode goes
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// offline for sometime, the cached commands be flooded.
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nodeManager.addDatanodeCommand(datanodeID,
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new DeleteBlocksCommand(dnTXs));
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LOG.debug(
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"Added delete block command for datanode {} in the queue,"
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+ " number of delete block transactions: {}, TxID list: {}",
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datanodeID, dnTXs.size(),
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String.join(",", transactions.getTransactionIDList(datanodeID)));
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if (dnTXs != null && !dnTXs.isEmpty()) {
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dnTxCount += dnTXs.size();
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// TODO commandQueue needs a cap.
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// We should stop caching new commands if num of un-processed
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// command is bigger than a limit, e.g 50. In case datanode goes
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// offline for sometime, the cached commands be flooded.
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nodeManager.addDatanodeCommand(datanodeID,
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new DeleteBlocksCommand(dnTXs));
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LOG.debug(
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"Added delete block command for datanode {} in the queue,"
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+ " number of delete block transactions: {}, TxID list: {}",
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datanodeID, dnTXs.size(), String.join(",",
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transactions.getTransactionIDList(datanodeID)));
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}
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}
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}
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if (dnTxCount > 0) {
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LOG.info("Totally added {} delete blocks command for"
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+ " {} datanodes, task elapsed time: {}ms",
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LOG.info(
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"Totally added {} delete blocks command for"
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+ " {} datanodes, task elapsed time: {}ms",
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dnTxCount, transactions.getDatanodes().size(),
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Time.monotonicNow() - startTime);
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}
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return EmptyTaskResult.newResult();
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}
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// Scan deleteBlocks.db to get a number of to-delete blocks.
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// this is going to be properly throttled.
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private DatanodeDeletedBlockTransactions getToDeleteContainerBlocks() {
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DatanodeDeletedBlockTransactions dnTXs =
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new DatanodeDeletedBlockTransactions();
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List<DeletedBlocksTransaction> txs = null;
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try {
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// Get a limited number of TXs to send via HB at a time.
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txs = deletedBlockLog
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.getTransactions(BLOCK_DELETE_TX_PER_REQUEST_LIMIT);
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LOG.debug("Scanned deleted blocks log and got {} delTX to process",
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txs.size());
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} catch (IOException e) {
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// We may tolerant a number of failures for sometime
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// but if it continues to fail, at some point we need to raise
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// an exception and probably fail the SCM ? At present, it simply
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// continues to retry the scanning.
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LOG.error("Failed to get block deletion transactions from delTX log",
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e);
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}
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if (txs != null) {
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for (DeletedBlocksTransaction tx : txs) {
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try {
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ContainerInfo info = mappingService
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.getContainer(tx.getContainerName());
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// Find out the datanode where this TX is supposed to send to.
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info.getPipeline().getMachines()
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.forEach(entry -> dnTXs.addTransaction(entry, tx));
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} catch (IOException e) {
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LOG.warn("Container {} not found, continue to process next",
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tx.getContainerName(), e);
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}
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}
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}
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return dnTXs;
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}
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}
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/**
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* A wrapper class to hold info about datanode and all deleted block
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* transactions that will be sent to this datanode.
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*/
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private static class DatanodeDeletedBlockTransactions {
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// A list of TXs mapped to a certain datanode ID.
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private final Map<DatanodeID, List<DeletedBlocksTransaction>> transactions;
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DatanodeDeletedBlockTransactions() {
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this.transactions = Maps.newHashMap();
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}
|
||||
|
||||
void addTransaction(DatanodeID dnID, DeletedBlocksTransaction tx) {
|
||||
if (transactions.containsKey(dnID)) {
|
||||
transactions.get(dnID).add(tx);
|
||||
} else {
|
||||
List<DeletedBlocksTransaction> first = Lists.newArrayList();
|
||||
first.add(tx);
|
||||
transactions.put(dnID, first);
|
||||
}
|
||||
LOG.debug("Transaction added: {} <- TX({})", dnID, tx.getTxID());
|
||||
}
|
||||
|
||||
Set<DatanodeID> getDatanodes() {
|
||||
return transactions.keySet();
|
||||
}
|
||||
|
||||
boolean isEmpty() {
|
||||
return transactions.isEmpty();
|
||||
}
|
||||
|
||||
boolean hasTransactions(DatanodeID dnID) {
|
||||
return transactions.containsKey(dnID) &&
|
||||
!transactions.get(dnID).isEmpty();
|
||||
}
|
||||
|
||||
List<DeletedBlocksTransaction> getDatanodeTransactions(DatanodeID dnID) {
|
||||
return transactions.get(dnID);
|
||||
}
|
||||
|
||||
List<String> getTransactionIDList(DatanodeID dnID) {
|
||||
if (hasTransactions(dnID)) {
|
||||
return transactions.get(dnID).stream()
|
||||
.map(DeletedBlocksTransaction::getTxID)
|
||||
.map(String::valueOf)
|
||||
.collect(Collectors.toList());
|
||||
} else {
|
||||
return Collections.emptyList();
|
||||
}
|
||||
}
|
||||
@VisibleForTesting
|
||||
public void setBlockDeleteTXNum(int numTXs) {
|
||||
blockDeleteLimitSize = numTXs;
|
||||
}
|
||||
}
|
||||
|
||||
@ -22,9 +22,17 @@
|
||||
|
||||
import org.apache.commons.lang.RandomStringUtils;
|
||||
import org.apache.hadoop.conf.OzoneConfiguration;
|
||||
import org.apache.hadoop.ozone.protocol.commands.DeleteBlocksCommand;
|
||||
import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
|
||||
import org.apache.hadoop.ozone.protocol.proto.OzoneProtos;
|
||||
import org.apache.hadoop.ozone.protocol.proto.OzoneProtos.NodeState;
|
||||
import org.apache.hadoop.ozone.protocol.proto.StorageContainerDatanodeProtocolProtos.DeletedBlocksTransaction;
|
||||
import org.apache.hadoop.ozone.protocol.proto.StorageContainerDatanodeProtocolProtos.ReportState;
|
||||
import org.apache.hadoop.ozone.protocol.proto.StorageContainerDatanodeProtocolProtos.Type;
|
||||
import org.apache.hadoop.ozone.scm.StorageContainerManager;
|
||||
import org.apache.hadoop.ozone.scm.block.DeletedBlockLog;
|
||||
import org.apache.hadoop.ozone.scm.block.SCMBlockDeletingService;
|
||||
import org.apache.hadoop.ozone.scm.node.NodeManager;
|
||||
import org.apache.hadoop.scm.XceiverClientManager;
|
||||
import org.apache.hadoop.scm.container.common.helpers.Pipeline;
|
||||
import org.junit.Rule;
|
||||
@ -166,11 +174,17 @@ private void verifyPermissionDeniedException(Exception e, String userName) {
|
||||
|
||||
@Test
|
||||
public void testBlockDeletionTransactions() throws Exception {
|
||||
int numKeys = 5;
|
||||
OzoneConfiguration conf = new OzoneConfiguration();
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_HEARTBEAT_INTERVAL_SECONDS, 5);
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL_MS, 3000);
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_BLOCK_DELETION_MAX_RETRY, 5);
|
||||
conf.setInt(OzoneConfigKeys.OZONE_BLOCK_DELETING_SERVICE_INTERVAL_MS, 1000);
|
||||
// Reset container provision size, otherwise only one container
|
||||
// is created by default.
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_CONTAINER_PROVISION_BATCH_SIZE,
|
||||
numKeys);
|
||||
|
||||
MiniOzoneCluster cluster =
|
||||
new MiniOzoneCluster.Builder(conf).numDataNodes(1)
|
||||
.setHandlerType(OzoneConsts.OZONE_HANDLER_DISTRIBUTED).build();
|
||||
@ -180,48 +194,14 @@ public void testBlockDeletionTransactions() throws Exception {
|
||||
.getScmBlockManager().getDeletedBlockLog();
|
||||
Assert.assertEquals(0, delLog.getNumOfValidTransactions());
|
||||
|
||||
// Create 20 random names keys.
|
||||
// Create {numKeys} random names keys.
|
||||
TestStorageContainerManagerHelper helper =
|
||||
new TestStorageContainerManagerHelper(cluster, conf);
|
||||
Map<String, KsmKeyInfo> keyLocations = helper.createKeys(20, 4096);
|
||||
Map<String, KsmKeyInfo> keyLocations = helper.createKeys(numKeys, 4096);
|
||||
|
||||
// These keys will be written into a bunch of containers,
|
||||
// gets a set of container names, verify container containerBlocks
|
||||
// on datanodes.
|
||||
Set<String> containerNames = new HashSet<>();
|
||||
for (Map.Entry<String, KsmKeyInfo> entry : keyLocations.entrySet()) {
|
||||
entry.getValue().getKeyLocationList()
|
||||
.forEach(loc -> containerNames.add(loc.getContainerName()));
|
||||
}
|
||||
|
||||
// Total number of containerBlocks of these containers should be equal to
|
||||
// total number of containerBlocks via creation call.
|
||||
int totalCreatedBlocks = 0;
|
||||
for (KsmKeyInfo info : keyLocations.values()) {
|
||||
totalCreatedBlocks += info.getKeyLocationList().size();
|
||||
}
|
||||
Assert.assertTrue(totalCreatedBlocks > 0);
|
||||
Assert.assertEquals(totalCreatedBlocks,
|
||||
helper.getAllBlocks(containerNames).size());
|
||||
|
||||
// Create a deletion TX for each key.
|
||||
Map<String, List<String>> containerBlocks = Maps.newHashMap();
|
||||
for (KsmKeyInfo info : keyLocations.values()) {
|
||||
List<KsmKeyLocationInfo> list = info.getKeyLocationList();
|
||||
list.forEach(location -> {
|
||||
if (containerBlocks.containsKey(location.getContainerName())) {
|
||||
containerBlocks.get(location.getContainerName())
|
||||
.add(location.getBlockID());
|
||||
} else {
|
||||
List<String> blks = Lists.newArrayList();
|
||||
blks.add(location.getBlockID());
|
||||
containerBlocks.put(location.getContainerName(), blks);
|
||||
}
|
||||
});
|
||||
}
|
||||
for (Map.Entry<String, List<String>> tx : containerBlocks.entrySet()) {
|
||||
delLog.addTransaction(tx.getKey(), tx.getValue());
|
||||
}
|
||||
Map<String, List<String>> containerBlocks = createDeleteTXLog(delLog,
|
||||
keyLocations, helper);
|
||||
Set<String> containerNames = containerBlocks.keySet();
|
||||
|
||||
// Verify a few TX gets created in the TX log.
|
||||
Assert.assertTrue(delLog.getNumOfValidTransactions() > 0);
|
||||
@ -268,4 +248,105 @@ public void testBlockDeletionTransactions() throws Exception {
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testBlockDeletingThrottling() throws Exception {
|
||||
int numKeys = 15;
|
||||
OzoneConfiguration conf = new OzoneConfiguration();
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_HEARTBEAT_INTERVAL_SECONDS, 5);
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL_MS, 3000);
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_BLOCK_DELETION_MAX_RETRY, 5);
|
||||
conf.setInt(OzoneConfigKeys.OZONE_BLOCK_DELETING_SERVICE_INTERVAL_MS, 1000);
|
||||
conf.setInt(ScmConfigKeys.OZONE_SCM_CONTAINER_PROVISION_BATCH_SIZE,
|
||||
numKeys);
|
||||
|
||||
MiniOzoneCluster cluster = new MiniOzoneCluster.Builder(conf)
|
||||
.numDataNodes(1).setHandlerType(OzoneConsts.OZONE_HANDLER_DISTRIBUTED)
|
||||
.build();
|
||||
|
||||
DeletedBlockLog delLog = cluster.getStorageContainerManager()
|
||||
.getScmBlockManager().getDeletedBlockLog();
|
||||
Assert.assertEquals(0, delLog.getNumOfValidTransactions());
|
||||
|
||||
int limitSize = 1;
|
||||
// Reset limit value to 1, so that we only allow one TX is dealt per
|
||||
// datanode.
|
||||
SCMBlockDeletingService delService = cluster.getStorageContainerManager()
|
||||
.getScmBlockManager().getSCMBlockDeletingService();
|
||||
delService.setBlockDeleteTXNum(limitSize);
|
||||
|
||||
// Create {numKeys} random names keys.
|
||||
TestStorageContainerManagerHelper helper =
|
||||
new TestStorageContainerManagerHelper(cluster, conf);
|
||||
Map<String, KsmKeyInfo> keyLocations = helper.createKeys(numKeys, 4096);
|
||||
|
||||
createDeleteTXLog(delLog, keyLocations, helper);
|
||||
// Verify a few TX gets created in the TX log.
|
||||
Assert.assertTrue(delLog.getNumOfValidTransactions() > 0);
|
||||
|
||||
// Verify the size in delete commands is expected.
|
||||
GenericTestUtils.waitFor(() -> {
|
||||
NodeManager nodeManager = cluster.getStorageContainerManager()
|
||||
.getScmNodeManager();
|
||||
ReportState reportState = ReportState.newBuilder()
|
||||
.setState(ReportState.states.noContainerReports).setCount(0).build();
|
||||
List<SCMCommand> commands = nodeManager.sendHeartbeat(
|
||||
nodeManager.getNodes(NodeState.HEALTHY).get(0), null, reportState);
|
||||
|
||||
if (commands != null) {
|
||||
for (SCMCommand cmd : commands) {
|
||||
if (cmd.getType() == Type.deleteBlocksCommand) {
|
||||
List<DeletedBlocksTransaction> deletedTXs =
|
||||
((DeleteBlocksCommand) cmd).blocksTobeDeleted();
|
||||
return deletedTXs != null && deletedTXs.size() == limitSize;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}, 500, 10000);
|
||||
}
|
||||
|
||||
private Map<String, List<String>> createDeleteTXLog(DeletedBlockLog delLog,
|
||||
Map<String, KsmKeyInfo> keyLocations,
|
||||
TestStorageContainerManagerHelper helper) throws IOException {
|
||||
// These keys will be written into a bunch of containers,
|
||||
// gets a set of container names, verify container containerBlocks
|
||||
// on datanodes.
|
||||
Set<String> containerNames = new HashSet<>();
|
||||
for (Map.Entry<String, KsmKeyInfo> entry : keyLocations.entrySet()) {
|
||||
entry.getValue().getKeyLocationList()
|
||||
.forEach(loc -> containerNames.add(loc.getContainerName()));
|
||||
}
|
||||
|
||||
// Total number of containerBlocks of these containers should be equal to
|
||||
// total number of containerBlocks via creation call.
|
||||
int totalCreatedBlocks = 0;
|
||||
for (KsmKeyInfo info : keyLocations.values()) {
|
||||
totalCreatedBlocks += info.getKeyLocationList().size();
|
||||
}
|
||||
Assert.assertTrue(totalCreatedBlocks > 0);
|
||||
Assert.assertEquals(totalCreatedBlocks,
|
||||
helper.getAllBlocks(containerNames).size());
|
||||
|
||||
// Create a deletion TX for each key.
|
||||
Map<String, List<String>> containerBlocks = Maps.newHashMap();
|
||||
for (KsmKeyInfo info : keyLocations.values()) {
|
||||
List<KsmKeyLocationInfo> list = info.getKeyLocationList();
|
||||
list.forEach(location -> {
|
||||
if (containerBlocks.containsKey(location.getContainerName())) {
|
||||
containerBlocks.get(location.getContainerName())
|
||||
.add(location.getBlockID());
|
||||
} else {
|
||||
List<String> blks = Lists.newArrayList();
|
||||
blks.add(location.getBlockID());
|
||||
containerBlocks.put(location.getContainerName(), blks);
|
||||
}
|
||||
});
|
||||
}
|
||||
for (Map.Entry<String, List<String>> tx : containerBlocks.entrySet()) {
|
||||
delLog.addTransaction(tx.getKey(), tx.getValue());
|
||||
}
|
||||
|
||||
return containerBlocks;
|
||||
}
|
||||
}
|
||||
@ -19,9 +19,14 @@
|
||||
|
||||
import org.apache.commons.io.FileUtils;
|
||||
import org.apache.hadoop.hdfs.DFSUtil;
|
||||
import org.apache.hadoop.hdfs.protocol.DatanodeID;
|
||||
import org.apache.hadoop.conf.OzoneConfiguration;
|
||||
import org.apache.hadoop.ozone.protocol.proto
|
||||
.StorageContainerDatanodeProtocolProtos.DeletedBlocksTransaction;
|
||||
import org.apache.hadoop.ozone.scm.container.ContainerMapping;
|
||||
import org.apache.hadoop.ozone.scm.container.Mapping;
|
||||
import org.apache.hadoop.scm.container.common.helpers.ContainerInfo;
|
||||
import org.apache.hadoop.scm.container.common.helpers.Pipeline;
|
||||
import org.apache.hadoop.test.GenericTestUtils;
|
||||
import org.apache.hadoop.utils.MetadataKeyFilters;
|
||||
import org.apache.hadoop.utils.MetadataStore;
|
||||
@ -29,11 +34,14 @@
|
||||
import org.junit.Assert;
|
||||
import org.junit.Before;
|
||||
import org.junit.Test;
|
||||
import org.mockito.Mockito;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
import java.util.HashMap;
|
||||
import java.util.LinkedList;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.Random;
|
||||
@ -42,6 +50,7 @@
|
||||
|
||||
import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_METADATA_DIRS;
|
||||
import static org.apache.hadoop.scm.ScmConfigKeys.OZONE_SCM_BLOCK_DELETION_MAX_RETRY;
|
||||
import static org.mockito.Mockito.mock;
|
||||
|
||||
/**
|
||||
* Tests for DeletedBlockLog.
|
||||
@ -237,4 +246,97 @@ public void testPersistence() throws Exception {
|
||||
blocks = deletedBlockLog.getTransactions(10);
|
||||
Assert.assertEquals(10, blocks.size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testDeletedBlockTransactions() throws IOException {
|
||||
int txNum = 10;
|
||||
int maximumAllowedTXNum = 5;
|
||||
List<DeletedBlocksTransaction> blocks = null;
|
||||
List<String> containerNames = new LinkedList<>();
|
||||
|
||||
int count = 0;
|
||||
String containerName = null;
|
||||
DatanodeID dnID1 = new DatanodeID(null, null, "node1", 0, 0, 0, 0);
|
||||
DatanodeID dnID2 = new DatanodeID(null, null, "node2", 0, 0, 0, 0);
|
||||
Mapping mappingService = mock(ContainerMapping.class);
|
||||
// Creates {TXNum} TX in the log.
|
||||
for (Map.Entry<String, List<String>> entry : generateData(txNum)
|
||||
.entrySet()) {
|
||||
count++;
|
||||
containerName = entry.getKey();
|
||||
containerNames.add(containerName);
|
||||
deletedBlockLog.addTransaction(containerName, entry.getValue());
|
||||
|
||||
// make TX[1-6] for datanode1; TX[7-10] for datanode2
|
||||
if (count <= (maximumAllowedTXNum + 1)) {
|
||||
mockContainerInfo(mappingService, containerName, dnID1);
|
||||
} else {
|
||||
mockContainerInfo(mappingService, containerName, dnID2);
|
||||
}
|
||||
}
|
||||
|
||||
DatanodeDeletedBlockTransactions transactions =
|
||||
new DatanodeDeletedBlockTransactions(mappingService,
|
||||
maximumAllowedTXNum, 2);
|
||||
deletedBlockLog.getTransactions(transactions);
|
||||
|
||||
List<Long> txIDs = new LinkedList<>();
|
||||
for (DatanodeID dnID : transactions.getDatanodes()) {
|
||||
List<DeletedBlocksTransaction> txs = transactions
|
||||
.getDatanodeTransactions(dnID);
|
||||
for (DeletedBlocksTransaction tx : txs) {
|
||||
txIDs.add(tx.getTxID());
|
||||
}
|
||||
}
|
||||
|
||||
// delete TX ID
|
||||
deletedBlockLog.commitTransactions(txIDs);
|
||||
blocks = deletedBlockLog.getTransactions(txNum);
|
||||
// There should be one block remained since dnID1 reaches
|
||||
// the maximum value (5).
|
||||
Assert.assertEquals(1, blocks.size());
|
||||
|
||||
Assert.assertFalse(transactions.isFull());
|
||||
// The number of TX in dnID1 won't more than maximum value.
|
||||
Assert.assertEquals(maximumAllowedTXNum,
|
||||
transactions.getDatanodeTransactions(dnID1).size());
|
||||
|
||||
int size = transactions.getDatanodeTransactions(dnID2).size();
|
||||
// add duplicated container in dnID2, this should be failed.
|
||||
DeletedBlocksTransaction.Builder builder =
|
||||
DeletedBlocksTransaction.newBuilder();
|
||||
builder.setTxID(11);
|
||||
builder.setContainerName(containerName);
|
||||
builder.setCount(0);
|
||||
transactions.addTransaction(builder.build());
|
||||
|
||||
// The number of TX in dnID2 should not be changed.
|
||||
Assert.assertEquals(size,
|
||||
transactions.getDatanodeTransactions(dnID2).size());
|
||||
|
||||
// Add new TX in dnID2, then dnID2 will reach maximum value.
|
||||
containerName = "newContainer";
|
||||
builder = DeletedBlocksTransaction.newBuilder();
|
||||
builder.setTxID(12);
|
||||
builder.setContainerName(containerName);
|
||||
builder.setCount(0);
|
||||
mockContainerInfo(mappingService, containerName, dnID2);
|
||||
transactions.addTransaction(builder.build());
|
||||
// Since all node are full, then transactions is full.
|
||||
Assert.assertTrue(transactions.isFull());
|
||||
}
|
||||
|
||||
private void mockContainerInfo(Mapping mappingService, String containerName,
|
||||
DatanodeID dnID) throws IOException {
|
||||
Pipeline pipeline = new Pipeline("fake");
|
||||
pipeline.addMember(dnID);
|
||||
|
||||
ContainerInfo.Builder builder = new ContainerInfo.Builder();
|
||||
builder.setPipeline(pipeline);
|
||||
builder.setContainerName(containerName);
|
||||
|
||||
ContainerInfo conatinerInfo = builder.build();
|
||||
Mockito.doReturn(conatinerInfo).when(mappingService)
|
||||
.getContainer(containerName);
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user