| /** |
| * 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.hbase.replication; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.CompoundConfiguration; |
| import org.apache.hadoop.hbase.HBaseConfiguration; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.ServerName; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Helper class for replication. |
| */ |
| @InterfaceAudience.Private |
| public final class ReplicationUtils { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(ReplicationUtils.class); |
| |
| public static final String REPLICATION_ATTR_NAME = "__rep__"; |
| |
| public static final String REMOTE_WAL_DIR_NAME = "remoteWALs"; |
| |
| public static final String SYNC_WAL_SUFFIX = ".syncrep"; |
| |
| public static final String REMOTE_WAL_REPLAY_SUFFIX = "-replay"; |
| |
| public static final String REMOTE_WAL_SNAPSHOT_SUFFIX = "-snapshot"; |
| |
| // This is used for copying sync replication log from local to remote and overwrite the old one |
| // since some FileSystem implementation may not support atomic rename. |
| public static final String RENAME_WAL_SUFFIX = ".ren"; |
| |
| private ReplicationUtils() { |
| } |
| |
| public static Configuration getPeerClusterConfiguration(ReplicationPeerConfig peerConfig, |
| Configuration baseConf) throws ReplicationException { |
| Configuration otherConf; |
| try { |
| otherConf = HBaseConfiguration.createClusterConf(baseConf, peerConfig.getClusterKey()); |
| } catch (IOException e) { |
| throw new ReplicationException("Can't get peer configuration for peer " + peerConfig, e); |
| } |
| |
| if (!peerConfig.getConfiguration().isEmpty()) { |
| CompoundConfiguration compound = new CompoundConfiguration(); |
| compound.add(otherConf); |
| compound.addStringMap(peerConfig.getConfiguration()); |
| return compound; |
| } |
| |
| return otherConf; |
| } |
| |
| public static void removeAllQueues(ReplicationQueueStorage queueStorage, String peerId) |
| throws ReplicationException { |
| for (ServerName replicator : queueStorage.getListOfReplicators()) { |
| List<String> queueIds = queueStorage.getAllQueues(replicator); |
| for (String queueId : queueIds) { |
| ReplicationQueueInfo queueInfo = new ReplicationQueueInfo(queueId); |
| if (queueInfo.getPeerId().equals(peerId)) { |
| queueStorage.removeQueue(replicator, queueId); |
| } |
| } |
| queueStorage.removeReplicatorIfQueueIsEmpty(replicator); |
| } |
| } |
| |
| private static boolean isCollectionEqual(Collection<String> c1, Collection<String> c2) { |
| if (c1 == null) { |
| return c2 == null; |
| } |
| if (c2 == null) { |
| return false; |
| } |
| return c1.size() == c2.size() && c1.containsAll(c2); |
| } |
| |
| private static boolean isNamespacesEqual(Set<String> ns1, Set<String> ns2) { |
| return isCollectionEqual(ns1, ns2); |
| } |
| |
| private static boolean isTableCFsEqual(Map<TableName, List<String>> tableCFs1, |
| Map<TableName, List<String>> tableCFs2) { |
| if (tableCFs1 == null) { |
| return tableCFs2 == null; |
| } |
| if (tableCFs2 == null) { |
| return false; |
| } |
| if (tableCFs1.size() != tableCFs2.size()) { |
| return false; |
| } |
| for (Map.Entry<TableName, List<String>> entry1 : tableCFs1.entrySet()) { |
| TableName table = entry1.getKey(); |
| if (!tableCFs2.containsKey(table)) { |
| return false; |
| } |
| List<String> cfs1 = entry1.getValue(); |
| List<String> cfs2 = tableCFs2.get(table); |
| if (!isCollectionEqual(cfs1, cfs2)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public static boolean isNamespacesAndTableCFsEqual(ReplicationPeerConfig rpc1, |
| ReplicationPeerConfig rpc2) { |
| if (rpc1.replicateAllUserTables() != rpc2.replicateAllUserTables()) { |
| return false; |
| } |
| if (rpc1.replicateAllUserTables()) { |
| return isNamespacesEqual(rpc1.getExcludeNamespaces(), rpc2.getExcludeNamespaces()) && |
| isTableCFsEqual(rpc1.getExcludeTableCFsMap(), rpc2.getExcludeTableCFsMap()); |
| } else { |
| return isNamespacesEqual(rpc1.getNamespaces(), rpc2.getNamespaces()) && |
| isTableCFsEqual(rpc1.getTableCFsMap(), rpc2.getTableCFsMap()); |
| } |
| } |
| |
| /** |
| * @param c Configuration to look at |
| * @return True if replication for bulk load data is enabled. |
| */ |
| public static boolean isReplicationForBulkLoadDataEnabled(final Configuration c) { |
| return c.getBoolean(HConstants.REPLICATION_BULKLOAD_ENABLE_KEY, |
| HConstants.REPLICATION_BULKLOAD_ENABLE_DEFAULT); |
| } |
| |
| public static FileSystem getRemoteWALFileSystem(Configuration conf, String remoteWALDir) |
| throws IOException { |
| return new Path(remoteWALDir).getFileSystem(conf); |
| } |
| |
| public static Path getPeerRemoteWALDir(String remoteWALDir, String peerId) { |
| return new Path(remoteWALDir, peerId); |
| } |
| |
| public static Path getPeerRemoteWALDir(Path remoteWALDir, String peerId) { |
| return new Path(remoteWALDir, peerId); |
| } |
| |
| public static Path getPeerReplayWALDir(Path remoteWALDir, String peerId) { |
| return getPeerRemoteWALDir(remoteWALDir, peerId).suffix(REMOTE_WAL_REPLAY_SUFFIX); |
| } |
| |
| public static Path getPeerSnapshotWALDir(String remoteWALDir, String peerId) { |
| return getPeerRemoteWALDir(remoteWALDir, peerId).suffix(REMOTE_WAL_SNAPSHOT_SUFFIX); |
| } |
| |
| public static Path getPeerSnapshotWALDir(Path remoteWALDir, String peerId) { |
| return getPeerRemoteWALDir(remoteWALDir, peerId).suffix(REMOTE_WAL_SNAPSHOT_SUFFIX); |
| } |
| |
| /** |
| * Do the sleeping logic |
| * @param msg Why we sleep |
| * @param sleepForRetries the base sleep time. |
| * @param sleepMultiplier by how many times the default sleeping time is augmented |
| * @param maxRetriesMultiplier the max retry multiplier |
| * @return True if <code>sleepMultiplier</code> is < <code>maxRetriesMultiplier</code> |
| */ |
| public static boolean sleepForRetries(String msg, long sleepForRetries, int sleepMultiplier, |
| int maxRetriesMultiplier) { |
| try { |
| LOG.trace("{}, sleeping {} times {}", msg, sleepForRetries, sleepMultiplier); |
| Thread.sleep(sleepForRetries * sleepMultiplier); |
| } catch (InterruptedException e) { |
| LOG.debug("Interrupted while sleeping between retries"); |
| Thread.currentThread().interrupt(); |
| } |
| return sleepMultiplier < maxRetriesMultiplier; |
| } |
| |
| /** |
| * Get the adaptive timeout value when performing a retry |
| */ |
| public static int getAdaptiveTimeout(final int initialValue, final int retries) { |
| int ntries = retries; |
| if (ntries >= HConstants.RETRY_BACKOFF.length) { |
| ntries = HConstants.RETRY_BACKOFF.length - 1; |
| } |
| if (ntries < 0) { |
| ntries = 0; |
| } |
| return initialValue * HConstants.RETRY_BACKOFF[ntries]; |
| } |
| } |