| /** |
| * 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.backup.master; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.ThreadPoolExecutor; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.ServerName; |
| import org.apache.hadoop.hbase.backup.BackupRestoreConstants; |
| import org.apache.hadoop.hbase.backup.impl.BackupManager; |
| import org.apache.hadoop.hbase.errorhandling.ForeignException; |
| import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher; |
| import org.apache.hadoop.hbase.master.MasterServices; |
| import org.apache.hadoop.hbase.master.MetricsMaster; |
| import org.apache.hadoop.hbase.procedure.MasterProcedureManager; |
| import org.apache.hadoop.hbase.procedure.Procedure; |
| import org.apache.hadoop.hbase.procedure.ProcedureCoordinationManager; |
| import org.apache.hadoop.hbase.procedure.ProcedureCoordinator; |
| import org.apache.hadoop.hbase.procedure.ProcedureCoordinatorRpcs; |
| import org.apache.hadoop.hbase.procedure.RegionServerProcedureManager; |
| import org.apache.hadoop.hbase.procedure.ZKProcedureCoordinationManager; |
| import org.apache.hadoop.hbase.security.User; |
| import org.apache.hadoop.hbase.security.access.AccessChecker; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.NameStringPair; |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ProcedureDescription; |
| |
| /** |
| * Master procedure manager for coordinated cluster-wide WAL roll operation, which is run during |
| * backup operation, see {@link MasterProcedureManager} and {@link RegionServerProcedureManager} |
| */ |
| @InterfaceAudience.Private |
| public class LogRollMasterProcedureManager extends MasterProcedureManager { |
| private static final Logger LOG = LoggerFactory.getLogger(LogRollMasterProcedureManager.class); |
| |
| public static final String ROLLLOG_PROCEDURE_SIGNATURE = "rolllog-proc"; |
| public static final String ROLLLOG_PROCEDURE_NAME = "rolllog"; |
| public static final String BACKUP_WAKE_MILLIS_KEY = "hbase.backup.logroll.wake.millis"; |
| public static final String BACKUP_TIMEOUT_MILLIS_KEY = "hbase.backup.logroll.timeout.millis"; |
| public static final String BACKUP_POOL_THREAD_NUMBER_KEY = |
| "hbase.backup.logroll.pool.thread.number"; |
| |
| public static final int BACKUP_WAKE_MILLIS_DEFAULT = 500; |
| public static final int BACKUP_TIMEOUT_MILLIS_DEFAULT = 180000; |
| public static final int BACKUP_POOL_THREAD_NUMBER_DEFAULT = 8; |
| private MasterServices master; |
| private ProcedureCoordinator coordinator; |
| private boolean done; |
| |
| @Override |
| public void stop(String why) { |
| LOG.info("stop: " + why); |
| } |
| |
| @Override |
| public boolean isStopped() { |
| return false; |
| } |
| |
| @Override |
| public void initialize(MasterServices master, MetricsMaster metricsMaster) |
| throws IOException, UnsupportedOperationException { |
| this.master = master; |
| this.done = false; |
| |
| // setup the default procedure coordinator |
| String name = master.getServerName().toString(); |
| |
| |
| // get the configuration for the coordinator |
| Configuration conf = master.getConfiguration(); |
| long wakeFrequency = conf.getInt(BACKUP_WAKE_MILLIS_KEY, BACKUP_WAKE_MILLIS_DEFAULT); |
| long timeoutMillis = conf.getLong(BACKUP_TIMEOUT_MILLIS_KEY,BACKUP_TIMEOUT_MILLIS_DEFAULT); |
| int opThreads = conf.getInt(BACKUP_POOL_THREAD_NUMBER_KEY, |
| BACKUP_POOL_THREAD_NUMBER_DEFAULT); |
| |
| // setup the default procedure coordinator |
| ThreadPoolExecutor tpool = ProcedureCoordinator.defaultPool(name, opThreads); |
| ProcedureCoordinationManager coordManager = new ZKProcedureCoordinationManager(master); |
| ProcedureCoordinatorRpcs comms = |
| coordManager.getProcedureCoordinatorRpcs(getProcedureSignature(), name); |
| this.coordinator = new ProcedureCoordinator(comms, tpool, timeoutMillis, wakeFrequency); |
| |
| } |
| |
| @Override |
| public String getProcedureSignature() { |
| return ROLLLOG_PROCEDURE_SIGNATURE; |
| } |
| |
| @Override |
| public void execProcedure(ProcedureDescription desc) throws IOException { |
| if (!isBackupEnabled()) { |
| LOG.warn("Backup is not enabled. Check your " + BackupRestoreConstants.BACKUP_ENABLE_KEY |
| + " setting"); |
| return; |
| } |
| this.done = false; |
| // start the process on the RS |
| ForeignExceptionDispatcher monitor = new ForeignExceptionDispatcher(desc.getInstance()); |
| List<ServerName> serverNames = master.getServerManager().getOnlineServersList(); |
| List<String> servers = new ArrayList<>(); |
| for (ServerName sn : serverNames) { |
| servers.add(sn.toString()); |
| } |
| |
| List<NameStringPair> conf = desc.getConfigurationList(); |
| byte[] data = new byte[0]; |
| if (conf.size() > 0) { |
| // Get backup root path |
| data = Bytes.toBytes(conf.get(0).getValue()); |
| } |
| Procedure proc = coordinator.startProcedure(monitor, desc.getInstance(), data, servers); |
| if (proc == null) { |
| String msg = "Failed to submit distributed procedure for '" + desc.getInstance() + "'"; |
| LOG.error(msg); |
| throw new IOException(msg); |
| } |
| |
| try { |
| // wait for the procedure to complete. A timer thread is kicked off that should cancel this |
| // if it takes too long. |
| proc.waitForCompleted(); |
| LOG.info("Done waiting - exec procedure for " + desc.getInstance()); |
| LOG.info("Distributed roll log procedure is successful!"); |
| this.done = true; |
| } catch (InterruptedException e) { |
| ForeignException ee = |
| new ForeignException("Interrupted while waiting for roll log procdure to finish", e); |
| monitor.receive(ee); |
| Thread.currentThread().interrupt(); |
| } catch (ForeignException e) { |
| ForeignException ee = |
| new ForeignException("Exception while waiting for roll log procdure to finish", e); |
| monitor.receive(ee); |
| } |
| monitor.rethrowException(); |
| } |
| |
| @Override |
| public void checkPermissions(ProcedureDescription desc, AccessChecker accessChecker, User user) |
| throws IOException { |
| // TODO: what permissions checks are needed here? |
| } |
| |
| private boolean isBackupEnabled() { |
| return BackupManager.isBackupEnabled(master.getConfiguration()); |
| } |
| |
| @Override |
| public boolean isProcedureDone(ProcedureDescription desc) { |
| return done; |
| } |
| } |