jaydeepkumar1984 commented on code in PR #3598: URL: https://github.com/apache/cassandra/pull/3598#discussion_r1951818747
########## src/java/org/apache/cassandra/repair/autorepair/AutoRepairUtils.java: ########## @@ -0,0 +1,876 @@ +/* + * 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.Arrays; +import java.util.Collection; +import java.util.Collections; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Optional; +import java.util.Set; +import java.util.TreeSet; +import java.util.UUID; +import java.util.concurrent.TimeUnit; + +import com.google.common.annotations.VisibleForTesting; +import com.google.common.base.MoreObjects; +import com.google.common.collect.Lists; + +import org.apache.cassandra.dht.Range; +import org.apache.cassandra.dht.Splitter; +import org.apache.cassandra.dht.Token; +import org.apache.cassandra.locator.LocalStrategy; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import org.apache.cassandra.config.DatabaseDescriptor; +import org.apache.cassandra.cql3.QueryOptions; +import org.apache.cassandra.cql3.QueryProcessor; +import org.apache.cassandra.cql3.UntypedResultSet; +import org.apache.cassandra.cql3.statements.ModificationStatement; +import org.apache.cassandra.cql3.statements.SelectStatement; +import org.apache.cassandra.db.ConsistencyLevel; +import org.apache.cassandra.db.Keyspace; +import org.apache.cassandra.db.marshal.UTF8Type; +import org.apache.cassandra.db.marshal.UUIDType; +import org.apache.cassandra.gms.Gossiper; +import org.apache.cassandra.locator.AbstractReplicationStrategy; +import org.apache.cassandra.locator.InetAddressAndPort; +import org.apache.cassandra.locator.MetaStrategy; +import org.apache.cassandra.locator.NetworkTopologyStrategy; +import org.apache.cassandra.schema.Schema; +import org.apache.cassandra.schema.SchemaConstants; +import org.apache.cassandra.schema.SystemDistributedKeyspace; +import org.apache.cassandra.schema.TableMetadata; +import org.apache.cassandra.schema.ViewMetadata; +import org.apache.cassandra.serializers.SetSerializer; +import org.apache.cassandra.serializers.UUIDSerializer; +import org.apache.cassandra.service.AutoRepairService; +import org.apache.cassandra.service.ClientState; +import org.apache.cassandra.service.QueryState; +import org.apache.cassandra.service.StorageService; +import org.apache.cassandra.tcm.ClusterMetadata; +import org.apache.cassandra.tcm.membership.NodeAddresses; +import org.apache.cassandra.tcm.membership.NodeId; +import org.apache.cassandra.transport.Dispatcher; +import org.apache.cassandra.transport.ProtocolVersion; +import org.apache.cassandra.transport.messages.ResultMessage; +import org.apache.cassandra.utils.ByteBufferUtil; +import org.apache.cassandra.utils.FBUtilities; +import org.apache.cassandra.repair.autorepair.AutoRepairConfig.RepairType; +import org.apache.cassandra.utils.NoSpamLogger; + +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.NOT_MY_TURN; +import static org.apache.cassandra.repair.autorepair.AutoRepairUtils.RepairTurn.MY_TURN_FORCE_REPAIR; +import static org.apache.cassandra.utils.Clock.Global.currentTimeMillis; + +/** + * This class serves as a utility class for AutoRepair. It contains various helper APIs + * to store/retrieve repair status, decide whose turn is next, etc. + */ +public class AutoRepairUtils +{ + private static final Logger logger = LoggerFactory.getLogger(AutoRepairUtils.class); + static final String COL_REPAIR_TYPE = "repair_type"; + static final String COL_HOST_ID = "host_id"; + static final String COL_REPAIR_START_TS = "repair_start_ts"; + static final String COL_REPAIR_FINISH_TS = "repair_finish_ts"; + static final String COL_REPAIR_PRIORITY = "repair_priority"; + static final String COL_DELETE_HOSTS = "delete_hosts"; // this set stores the host ids which think the row should be deleted + static final String COL_REPAIR_TURN = "repair_turn"; // this record the last repair turn. Normal turn or turn due to priority + static final String COL_DELETE_HOSTS_UPDATE_TIME = "delete_hosts_update_time"; // the time when delete hosts are upated + static final String COL_FORCE_REPAIR = "force_repair"; // if set to true, the node will do non-primary range rapair + + final static String SELECT_REPAIR_HISTORY = String.format( + "SELECT * FROM %s.%s WHERE %s = ?", SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, + SystemDistributedKeyspace.AUTO_REPAIR_HISTORY, COL_REPAIR_TYPE); + final static String SELECT_REPAIR_PRIORITY = String.format( + "SELECT * FROM %s.%s WHERE %s = ?", SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, + SystemDistributedKeyspace.AUTO_REPAIR_PRIORITY, COL_REPAIR_TYPE); + final static String DEL_REPAIR_PRIORITY = String.format( + "DELETE %s[?] FROM %s.%s WHERE %s = ?", COL_REPAIR_PRIORITY, SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, + SystemDistributedKeyspace.AUTO_REPAIR_PRIORITY, COL_REPAIR_TYPE); + final static String ADD_PRIORITY_HOST = String.format( + "UPDATE %s.%s SET %s = %s + ? WHERE %s = ?", SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, + SystemDistributedKeyspace.AUTO_REPAIR_PRIORITY, COL_REPAIR_PRIORITY, COL_REPAIR_PRIORITY, COL_REPAIR_TYPE); + + final static String INSERT_NEW_REPAIR_HISTORY = String.format( + "INSERT INTO %s.%s (%s, %s, %s, %s, %s, %s) values (?, ? ,?, ?, {}, ?) IF NOT EXISTS", + SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, SystemDistributedKeyspace.AUTO_REPAIR_HISTORY, COL_REPAIR_TYPE, + COL_HOST_ID, COL_REPAIR_START_TS, COL_REPAIR_FINISH_TS, COL_DELETE_HOSTS, COL_DELETE_HOSTS_UPDATE_TIME); + + final static String ADD_HOST_ID_TO_DELETE_HOSTS = String.format( + "UPDATE %s.%s SET %s = %s + ?, %s = ? WHERE %s = ? AND %s = ? IF EXISTS" + , SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, SystemDistributedKeyspace.AUTO_REPAIR_HISTORY, COL_DELETE_HOSTS, + COL_DELETE_HOSTS, COL_DELETE_HOSTS_UPDATE_TIME, COL_REPAIR_TYPE, COL_HOST_ID); + + final static String DEL_AUTO_REPAIR_HISTORY = String.format( + "DELETE FROM %s.%s WHERE %s = ? AND %s = ?" + , SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, SystemDistributedKeyspace.AUTO_REPAIR_HISTORY, COL_REPAIR_TYPE, + COL_HOST_ID); + + final static String RECORD_START_REPAIR_HISTORY = String.format( + "UPDATE %s.%s SET %s= ?, repair_turn = ? WHERE %s = ? AND %s = ?" + , SchemaConstants.DISTRIBUTED_KEYSPACE_NAME, SystemDistributedKeyspace.AUTO_REPAIR_HISTORY, COL_REPAIR_START_TS, + COL_REPAIR_TYPE, COL_HOST_ID); + + final static String RECORD_FINISH_REPAIR_HISTORY = String.format( + Review Comment: nit: remove empty line -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. 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