| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.hdfs.server.namenode; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Iterator; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.CommonConfigurationKeysPublic; |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.hdfs.DFSTestUtil; |
| import org.apache.hadoop.hdfs.DistributedFileSystem; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory; |
| import org.apache.hadoop.hdfs.server.common.Util; |
| import org.apache.hadoop.hdfs.server.namenode.NNStorage.NameNodeDirType; |
| import org.apache.hadoop.util.Time; |
| |
| /** |
| * OfflineEditsViewerHelper is a helper class for TestOfflineEditsViewer, |
| * it performs NN operations that generate all op codes |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| public class OfflineEditsViewerHelper { |
| |
| private static final Log LOG = |
| LogFactory.getLog(OfflineEditsViewerHelper.class); |
| |
| final long blockSize = 512; |
| MiniDFSCluster cluster = null; |
| final Configuration config = new Configuration(); |
| |
| /** |
| * Generates edits with all op codes and returns the edits filename |
| */ |
| public String generateEdits() throws IOException { |
| CheckpointSignature signature = runOperations(); |
| return getEditsFilename(signature); |
| } |
| |
| /** |
| * Get edits filename |
| * |
| * @return edits file name for cluster |
| */ |
| private String getEditsFilename(CheckpointSignature sig) throws IOException { |
| FSImage image = cluster.getNameNode().getFSImage(); |
| // it was set up to only have ONE StorageDirectory |
| Iterator<StorageDirectory> it |
| = image.getStorage().dirIterator(NameNodeDirType.EDITS); |
| StorageDirectory sd = it.next(); |
| File ret = NNStorage.getFinalizedEditsFile( |
| sd, 1, sig.curSegmentTxId - 1); |
| assert ret.exists() : "expected " + ret + " exists"; |
| return ret.getAbsolutePath(); |
| } |
| |
| /** |
| * Sets up a MiniDFSCluster, configures it to create one edits file, |
| * starts DelegationTokenSecretManager (to get security op codes) |
| * |
| * @param dfsDir DFS directory (where to setup MiniDFS cluster) |
| */ |
| public void startCluster(String dfsDir) throws IOException { |
| |
| // same as manageDfsDirs but only one edits file instead of two |
| config.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, |
| Util.fileAsURI(new File(dfsDir, "name")).toString()); |
| config.set(DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_DIR_KEY, |
| Util.fileAsURI(new File(dfsDir, "namesecondary1")).toString()); |
| // blocksize for concat (file size must be multiple of blocksize) |
| config.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize); |
| // for security to work (fake JobTracker user) |
| config.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTH_TO_LOCAL, |
| "RULE:[2:$1@$0](JobTracker@.*FOO.COM)s/@.*//" + "DEFAULT"); |
| config.setBoolean( |
| DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_KEY, true); |
| config.setBoolean(DFSConfigKeys.DFS_NAMENODE_ACLS_ENABLED_KEY, true); |
| cluster = |
| new MiniDFSCluster.Builder(config).manageNameDfsDirs(false).build(); |
| cluster.waitClusterUp(); |
| } |
| |
| /** |
| * Shutdown the cluster |
| */ |
| public void shutdownCluster() throws IOException { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| |
| /** |
| * Run file operations to create edits for all op codes |
| * to be tested. |
| * |
| * the following op codes are deprecated and therefore not tested: |
| * |
| * OP_DATANODE_ADD ( 5) |
| * OP_DATANODE_REMOVE ( 6) |
| * OP_SET_NS_QUOTA (11) |
| * OP_CLEAR_NS_QUOTA (12) |
| */ |
| private CheckpointSignature runOperations() throws IOException { |
| LOG.info("Creating edits by performing fs operations"); |
| // no check, if it's not it throws an exception which is what we want |
| DistributedFileSystem dfs = cluster.getFileSystem(); |
| DFSTestUtil.runOperations(cluster, dfs, cluster.getConfiguration(0), |
| dfs.getDefaultBlockSize(), 0); |
| |
| // OP_ROLLING_UPGRADE_START |
| cluster.getNamesystem().getEditLog().logStartRollingUpgrade(Time.now()); |
| // OP_ROLLING_UPGRADE_FINALIZE |
| cluster.getNamesystem().getEditLog().logFinalizeRollingUpgrade(Time.now()); |
| |
| // Force a roll so we get an OP_END_LOG_SEGMENT txn |
| return cluster.getNameNodeRpc().rollEditLog(); |
| } |
| } |