kzalys commented on code in PR #3306: URL: https://github.com/apache/cassandra/pull/3306#discussion_r1602234937
########## src/java/org/apache/cassandra/repair/autorepair/AutoRepair.java: ########## @@ -0,0 +1,401 @@ +/* + * 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.cassandra.repair.autorepair; + +import java.util.ArrayList; +import java.util.EnumMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.FutureTask; +import java.util.concurrent.TimeUnit; +import java.util.function.Supplier; + +import com.google.common.annotations.VisibleForTesting; +import com.google.common.collect.ImmutableList; + +import org.apache.cassandra.repair.RepairRunnable; +import org.apache.cassandra.utils.Pair; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import org.apache.cassandra.concurrent.NamedThreadFactory; +import org.apache.cassandra.concurrent.ScheduledExecutorPlus; +import org.apache.cassandra.config.DatabaseDescriptor; +import org.apache.cassandra.db.ColumnFamilyStore; +import org.apache.cassandra.db.Keyspace; +import org.apache.cassandra.dht.Range; +import org.apache.cassandra.dht.Token; +import org.apache.cassandra.exceptions.ConfigurationException; +import org.apache.cassandra.gms.Gossiper; +import org.apache.cassandra.schema.TableMetadata; +import org.apache.cassandra.schema.Tables; +import org.apache.cassandra.service.AutoRepairService; +import org.apache.cassandra.utils.FBUtilities; +import org.apache.cassandra.repair.autorepair.AutoRepairUtils.RepairTurn; + +import static org.apache.cassandra.concurrent.ExecutorFactory.Global.executorFactory; +import static org.apache.cassandra.repair.autorepair.AutoRepairUtils.RepairTurn.MY_TURN; +import static org.apache.cassandra.repair.autorepair.AutoRepairUtils.RepairTurn.MY_TURN_DUE_TO_PRIORITY; +import static org.apache.cassandra.repair.autorepair.AutoRepairUtils.RepairTurn.MY_TURN_FORCE_REPAIR; + +// TODO: add class documentation (SO-28898) +public class AutoRepair +{ + // Initial delay for repair session to start after setup + final static long INITIAL_REPAIR_DELAY_SEC = 30; + + private static final Logger logger = LoggerFactory.getLogger(AutoRepair.class); + + @VisibleForTesting + protected static Supplier<Long> timeFunc = System::currentTimeMillis; + + public static AutoRepair instance = new AutoRepair(); + + @VisibleForTesting + protected final Map<AutoRepairConfig.RepairType, ScheduledExecutorPlus> repairExecutors; + @VisibleForTesting + protected final Map<AutoRepairConfig.RepairType, AutoRepairState> repairStates; + + protected final Map<AutoRepairConfig.RepairType, IAutoRepairTokenRangeSplitter> tokenRangeSplitters = new EnumMap<>(AutoRepairConfig.RepairType.class); + + + @VisibleForTesting + protected AutoRepair() + { + AutoRepairConfig config = DatabaseDescriptor.getAutoRepairConfig(); + repairExecutors = new EnumMap<>(AutoRepairConfig.RepairType.class); + repairStates = new EnumMap<>(AutoRepairConfig.RepairType.class); + for (AutoRepairConfig.RepairType repairType : AutoRepairConfig.RepairType.values()) + { + repairExecutors.put(repairType, executorFactory().scheduled(false, "AutoRepair-Repair-" + repairType, Thread.NORM_PRIORITY)); + repairStates.put(repairType, AutoRepairStateFactory.getAutoRepairState(repairType)); + tokenRangeSplitters.put(repairType, FBUtilities.newAutoRepairTokenRangeSplitter(config.getTokenRangeSplitter(repairType))); + } + } + + public void setup() + { + verifyIsSafeToEnable(); + + AutoRepairConfig config = DatabaseDescriptor.getAutoRepairConfig(); + AutoRepairService.setup(); + AutoRepairUtils.setup(); + + for (AutoRepairConfig.RepairType repairType : AutoRepairConfig.RepairType.values()) + { + repairExecutors.get(repairType).scheduleWithFixedDelay( + () -> repair(repairType, 60000), + INITIAL_REPAIR_DELAY_SEC, + config.getRepairCheckIntervalInSec(), + TimeUnit.SECONDS); + } + } + + @VisibleForTesting + protected void verifyIsSafeToEnable() + { + AutoRepairConfig config = DatabaseDescriptor.getAutoRepairConfig(); + if (config.isAutoRepairEnabled(AutoRepairConfig.RepairType.incremental) && + (DatabaseDescriptor.getMaterializedViewsEnabled() || DatabaseDescriptor.isCDCEnabled())) + throw new ConfigurationException("Cannot enable incremental repair with materialized views or CDC enabled"); + } + + // repairAsync runs a repair session of the given type asynchronously. + public void repairAsync(AutoRepairConfig.RepairType repairType, long millisToWait) + { + repairExecutors.get(repairType).submit(() -> repair(repairType, millisToWait)); + } + + // repair runs a repair session of the given type synchronously. + public void repair(AutoRepairConfig.RepairType repairType, long millisToWait) + { + AutoRepairConfig config = AutoRepairService.instance.getAutoRepairConfig(); + if (!config.isAutoRepairEnabled(repairType)) + { + logger.debug("Auto-repair is disabled for repair type {}", repairType); + return; + } + + + AutoRepairState repairState = repairStates.get(repairType); + + try + { + String localDC = DatabaseDescriptor.getLocalDataCenter(); + if (config.getIgnoreDCs(repairType).contains(localDC)) + { + logger.info("Not running repair as this node belongs to datacenter {}", localDC); + return; + } + + // refresh the longest unrepaired node + repairState.setLongestUnrepairedNode(AutoRepairUtils.getHostWithLongestUnrepairTime(repairType)); + + //consistency level to use for local query + UUID myId = Gossiper.instance.getHostId(FBUtilities.getBroadcastAddressAndPort()); + RepairTurn turn = AutoRepairUtils.myTurnToRunRepair(repairType, myId); + if (turn == MY_TURN || turn == MY_TURN_DUE_TO_PRIORITY || turn == MY_TURN_FORCE_REPAIR) + { + repairState.recordTurn(turn); + // For normal auto repair, we will use primary range only repairs (Repair with -pr option). + // For some cases, we may set the auto_repair_primary_token_range_only flag to false then we will do repair + // without -pr. We may also do force repair for certain node that we want to repair all the data on one node + // When doing force repair, we want to repair without -pr. + boolean primaryRangeOnly = config.getRepairPrimaryTokenRangeOnly(repairType) + && turn != MY_TURN_FORCE_REPAIR; + repairState.setTotalTablesConsideredForRepair(0); + if (repairState.getLastRepairTime() != 0) + { + /** check if it is too soon to run repair. one of the reason we + * should not run frequent repair is because repair triggers + * memtable flush + */ + long timeElapsedSinceLastRepairInHours = TimeUnit.MILLISECONDS.toHours(timeFunc.get() - repairState.getLastRepairTime()); + if (timeElapsedSinceLastRepairInHours < config.getRepairMinIntervalInHours(repairType)) + { + logger.info("Too soon to run repair, last repair was done {} hour(s) ago", + timeElapsedSinceLastRepairInHours); + return; + } + } + + long startTime = timeFunc.get(); + logger.info("My host id: {}, my turn to run repair...repair primary-ranges only? {}", myId, + config.getRepairPrimaryTokenRangeOnly(repairType)); + AutoRepairUtils.updateStartAutoRepairHistory(repairType, myId, timeFunc.get(), turn); + + repairState.setRepairKeyspaceCount(0); + repairState.setRepairTableSuccessCount(0); + repairState.setRepairFailedTablesCount(0); + repairState.setRepairSkippedTablesCount(0); + repairState.setRepairInProgress(true); + repairState.setTotalMVTablesConsideredForRepair(0); + for (Keyspace keyspace : Keyspace.all()) + { + Tables tables = keyspace.getMetadata().tables; + Iterator<TableMetadata> iter = tables.iterator(); + String keyspaceName = keyspace.getName(); + if (!AutoRepairUtils.checkNodeContainsKeyspaceReplica(keyspace)) + { + continue; + } + + repairState.setRepairKeyspaceCount(repairState.getRepairKeyspaceCount() + 1); + List<String> tablesToBeRepaired = new ArrayList<>(); + while (iter.hasNext()) + { + repairState.setTotalTablesConsideredForRepair(repairState.getTotalTablesConsideredForRepair() + 1); + TableMetadata tableMetadata = iter.next(); + String tableName = tableMetadata.name; + tablesToBeRepaired.add(tableName); + + // See if we should repair MVs as well that are associated with this given table + List<String> mvs = AutoRepairUtils.getAllMVs(repairType, keyspace, tableMetadata); + if (!mvs.isEmpty()) + { + tablesToBeRepaired.addAll(mvs); + repairState.setTotalMVTablesConsideredForRepair(repairState.getTotalMVTablesConsideredForRepair() + mvs.size()); + } + } + + for (String tableName : tablesToBeRepaired) + { + try + { + ColumnFamilyStore columnFamilyStore = keyspace.getColumnFamilyStore(tableName); + if (columnFamilyStore.metadata().params.disableAutomatedRepair) + { + logger.info("Repair is disabled for keyspace {} for tables: {}", keyspaceName, tableName); Review Comment: ```suggestion logger.info("Repair is disabled for keyspace {} for table: {}", keyspaceName, tableName); ``` -- This is an automated message from the Apache Git Service. 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