| /* |
| * 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.service.reads.repair; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.cassandra.db.ConsistencyLevel; |
| import org.apache.cassandra.db.DecoratedKey; |
| import org.apache.cassandra.db.Keyspace; |
| import org.apache.cassandra.db.Mutation; |
| import org.apache.cassandra.db.MutationExceededMaxSizeException; |
| import org.apache.cassandra.db.partitions.PartitionUpdate; |
| import org.apache.cassandra.exceptions.ReadTimeoutException; |
| import org.apache.cassandra.locator.InetAddressAndPort; |
| import org.apache.cassandra.net.MessagingService; |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.tracing.Tracing; |
| |
| import static org.apache.cassandra.config.CassandraRelevantProperties.DROP_OVERSIZED_READ_REPAIR_MUTATIONS; |
| import static org.apache.cassandra.db.IMutation.MAX_MUTATION_SIZE; |
| |
| public class BlockingReadRepairs |
| { |
| private static final Logger logger = LoggerFactory.getLogger(BlockingReadRepairs.class); |
| |
| private static final boolean SHOULD_DROP_OVERSIZED_READ_REPAIR_MUTATIONS = DROP_OVERSIZED_READ_REPAIR_MUTATIONS.getBoolean(); |
| |
| /** |
| * Create a read repair mutation from the given update, if the mutation is not larger than the maximum |
| * mutation size, otherwise return null. Or, if we're configured to be strict, throw an exception. |
| */ |
| public static Mutation createRepairMutation(PartitionUpdate update, ConsistencyLevel consistency, InetAddressAndPort destination, boolean suppressException) |
| { |
| if (update == null) |
| return null; |
| |
| DecoratedKey key = update.partitionKey(); |
| Mutation mutation = new Mutation(update); |
| int messagingVersion = MessagingService.instance().versions.get(destination); |
| |
| try |
| { |
| mutation.validateSize(messagingVersion, 0); |
| return mutation; |
| } |
| catch (MutationExceededMaxSizeException e) |
| { |
| Keyspace keyspace = Keyspace.open(mutation.getKeyspaceName()); |
| TableMetadata metadata = update.metadata(); |
| |
| if (SHOULD_DROP_OVERSIZED_READ_REPAIR_MUTATIONS) |
| { |
| logger.debug("Encountered an oversized ({}/{}) read repair mutation for table {}, key {}, node {}", |
| e.mutationSize, |
| MAX_MUTATION_SIZE, |
| metadata, |
| metadata.partitionKeyType.getString(key.getKey()), |
| destination); |
| } |
| else |
| { |
| logger.warn("Encountered an oversized ({}/{}) read repair mutation for table {}, key {}, node {}", |
| e.mutationSize, |
| MAX_MUTATION_SIZE, |
| metadata, |
| metadata.partitionKeyType.getString(key.getKey()), |
| destination); |
| |
| if (!suppressException) |
| { |
| int blockFor = consistency.blockFor(keyspace.getReplicationStrategy()); |
| Tracing.trace("Timed out while read-repairing after receiving all {} data and digest responses", blockFor); |
| throw new ReadTimeoutException(consistency, blockFor - 1, blockFor, true); |
| } |
| } |
| return null; |
| } |
| } |
| } |