| /* |
| * 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.bookkeeper.tools.cli.commands.autorecovery; |
| |
| import com.beust.jcommander.Parameter; |
| import com.google.common.util.concurrent.UncheckedExecutionException; |
| import java.util.concurrent.ExecutionException; |
| import lombok.Setter; |
| import lombok.experimental.Accessors; |
| import org.apache.bookkeeper.conf.ServerConfiguration; |
| import org.apache.bookkeeper.meta.LedgerUnderreplicationManager; |
| import org.apache.bookkeeper.meta.MetadataDrivers; |
| import org.apache.bookkeeper.meta.exceptions.MetadataException; |
| import org.apache.bookkeeper.replication.ReplicationException; |
| import org.apache.bookkeeper.tools.cli.helpers.BookieCommand; |
| import org.apache.bookkeeper.tools.framework.CliFlags; |
| import org.apache.bookkeeper.tools.framework.CliSpec; |
| import org.apache.zookeeper.KeeperException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * Command to enable or disable auto recovery in the cluster. |
| */ |
| public class ToggleCommand extends BookieCommand<ToggleCommand.AutoRecoveryFlags> { |
| |
| static final Logger LOG = LoggerFactory.getLogger(ToggleCommand.class); |
| |
| private static final String NAME = "toggle"; |
| private static final String DESC = "Enable or disable auto recovery in the cluster. Default is disable."; |
| |
| public ToggleCommand() { |
| this(new AutoRecoveryFlags()); |
| } |
| |
| private ToggleCommand(AutoRecoveryFlags flags) { |
| super(CliSpec.<ToggleCommand.AutoRecoveryFlags>newBuilder() |
| .withName(NAME).withDescription(DESC) |
| .withFlags(flags).build()); |
| } |
| |
| /** |
| * Flags for auto recovery command. |
| */ |
| @Accessors(fluent = true) |
| @Setter |
| public static class AutoRecoveryFlags extends CliFlags { |
| |
| @Parameter(names = { "-e", "--enable" }, description = "Enable or disable auto recovery of under replicated " |
| + "ledgers.") |
| private boolean enable; |
| |
| @Parameter(names = {"-s", "--status"}, description = "Check the auto recovery status.") |
| private boolean status; |
| |
| } |
| |
| @Override |
| public boolean apply(ServerConfiguration conf, AutoRecoveryFlags cmdFlags) { |
| try { |
| return handler(conf, cmdFlags); |
| } catch (MetadataException | ExecutionException e) { |
| throw new UncheckedExecutionException(e.getMessage(), e); |
| } |
| } |
| |
| private boolean handler(ServerConfiguration conf, AutoRecoveryFlags flags) |
| throws MetadataException, ExecutionException { |
| MetadataDrivers.runFunctionWithLedgerManagerFactory(conf, mFactory -> { |
| try { |
| try (LedgerUnderreplicationManager underreplicationManager = mFactory |
| .newLedgerUnderreplicationManager()) { |
| if (flags.status) { |
| LOG.info("Autorecovery is " + (underreplicationManager.isLedgerReplicationEnabled() |
| ? "enabled." : "disabled.")); |
| return null; |
| } |
| if (flags.enable) { |
| if (underreplicationManager.isLedgerReplicationEnabled()) { |
| LOG.warn("Autorecovery already enabled. Doing nothing"); |
| } else { |
| LOG.info("Enabling autorecovery"); |
| underreplicationManager.enableLedgerReplication(); |
| } |
| } else { |
| if (!underreplicationManager.isLedgerReplicationEnabled()) { |
| LOG.warn("Autorecovery already disabled. Doing nothing"); |
| } else { |
| LOG.info("Disabling autorecovery"); |
| underreplicationManager.disableLedgerReplication(); |
| } |
| } |
| } |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| throw new UncheckedExecutionException(e); |
| } catch (KeeperException | ReplicationException e) { |
| throw new UncheckedExecutionException(e); |
| } |
| return null; |
| }); |
| return true; |
| } |
| } |