/* * 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; import java.net.InetAddress; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.apache.cassandra.db.SystemKeyspace; import org.apache.cassandra.net.MessagingService; import org.apache.cassandra.repair.messages.SyncComplete; import org.apache.cassandra.repair.messages.SyncRequest; import org.apache.cassandra.service.ActiveRepairService; import org.apache.cassandra.streaming.StreamEvent; import org.apache.cassandra.streaming.StreamEventHandler; import org.apache.cassandra.streaming.StreamPlan; import org.apache.cassandra.streaming.StreamState; /** * StreamingRepairTask performs data streaming between two remote replica which neither is not repair coordinator. * Task will send {@link SyncComplete} message back to coordinator upon streaming completion. */ public class StreamingRepairTask implements Runnable, StreamEventHandler { private static final Logger logger = LoggerFactory.getLogger(StreamingRepairTask.class); private final RepairJobDesc desc; private final SyncRequest request; private final long repairedAt; public StreamingRepairTask(RepairJobDesc desc, SyncRequest request, long repairedAt) { this.desc = desc; this.request = request; this.repairedAt = repairedAt; } public void run() { InetAddress dest = request.dst; InetAddress preferred = SystemKeyspace.getPreferredIP(dest); logger.info(String.format("[streaming task #%s] Performing streaming repair of %d ranges with %s", desc.sessionId, request.ranges.size(), request.dst)); boolean isIncremental = false; if (desc.parentSessionId != null) { ActiveRepairService.ParentRepairSession prs = ActiveRepairService.instance.getParentRepairSession(desc.parentSessionId); isIncremental = prs.isIncremental; } new StreamPlan("Repair", repairedAt, 1, false, isIncremental).listeners(this) .flushBeforeTransfer(true) // request ranges from the remote node .requestRanges(dest, preferred, desc.keyspace, request.ranges, desc.columnFamily) // send ranges to the remote node .transferRanges(dest, preferred, desc.keyspace, request.ranges, desc.columnFamily) .execute(); } public void handleStreamEvent(StreamEvent event) { // Nothing to do here, all we care about is the final success or failure and that's handled by // onSuccess and onFailure } /** * If we succeeded on both stream in and out, reply back to coordinator */ public void onSuccess(StreamState state) { logger.info(String.format("[repair #%s] streaming task succeed, returning response to %s", desc.sessionId, request.initiator)); MessagingService.instance().sendOneWay(new SyncComplete(desc, request.src, request.dst, true).createMessage(), request.initiator); } /** * If we failed on either stream in or out, reply fail to coordinator */ public void onFailure(Throwable t) { MessagingService.instance().sendOneWay(new SyncComplete(desc, request.src, request.dst, false).createMessage(), request.initiator); } }