| /* |
| * 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.sidecar.routes.tokenrange; |
| |
| import java.math.BigInteger; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.CountDownLatch; |
| |
| import com.google.common.collect.Range; |
| import com.google.common.util.concurrent.Uninterruptibles; |
| import org.junit.jupiter.api.extension.ExtendWith; |
| |
| import io.vertx.junit5.VertxExtension; |
| import io.vertx.junit5.VertxTestContext; |
| import net.bytebuddy.ByteBuddy; |
| import net.bytebuddy.description.type.TypeDescription; |
| import net.bytebuddy.dynamic.ClassFileLocator; |
| import net.bytebuddy.dynamic.TypeResolutionStrategy; |
| import net.bytebuddy.dynamic.loading.ClassLoadingStrategy; |
| import net.bytebuddy.implementation.MethodDelegation; |
| import net.bytebuddy.implementation.bind.annotation.SuperCall; |
| import net.bytebuddy.pool.TypePool; |
| import org.apache.cassandra.distributed.UpgradeableCluster; |
| import org.apache.cassandra.testing.CassandraIntegrationTest; |
| import org.apache.cassandra.testing.ConfigurableCassandraTestContext; |
| import org.apache.cassandra.utils.Shared; |
| |
| import static net.bytebuddy.matcher.ElementMatchers.named; |
| |
| /** |
| * Multi-DC Cluster shrink scenarios integration tests for token range replica mapping endpoint with the in-jvm |
| * dtest framework. |
| * |
| * Note: Some related test classes are broken down to have a single test case to parallelize test execution and |
| * therefore limit the instance size required to run the tests from CircleCI as the in-jvm-dtests tests are memory bound |
| */ |
| @ExtendWith(VertxExtension.class) |
| class LeavingTestMultiDCHalveCluster extends LeavingBaseTest |
| { |
| @CassandraIntegrationTest(nodesPerDc = 6, numDcs = 2, network = true, gossip = true, buildCluster = false) |
| void retrieveMappingMultiDCHalveClusterSize(VertxTestContext context, |
| ConfigurableCassandraTestContext cassandraTestContext) throws Exception |
| { |
| BBHelperHalveClusterMultiDC.reset(); |
| int leavingNodesPerDC = 3; |
| UpgradeableCluster cluster = getMultiDCCluster(BBHelperHalveClusterMultiDC::install, cassandraTestContext); |
| |
| Map<String, Map<Range<BigInteger>, List<String>>> expectedRangeMappings |
| = generateExpectedRangeHalveClusterSizeMultiDC(); |
| runLeavingTestScenario(context, |
| leavingNodesPerDC, |
| BBHelperHalveClusterMultiDC.transientStateStart, |
| BBHelperHalveClusterMultiDC.transientStateEnd, |
| cluster, |
| expectedRangeMappings); |
| } |
| |
| /** |
| * Generates expected token range and replica mappings specific to the test case involving a 12 node cluster |
| * across 2 DCs with the last 6 nodes leaving the cluster (3 per DC) |
| * <p> |
| * Expected ranges are generated by adding RF replicas per range in increasing order. The replica-sets in subsequent |
| * ranges cascade with the next range excluding the first replica, and including the next replica from the nodes. |
| * eg. |
| * Range 1 - A, B, C |
| * Range 2 - B, C, D |
| * <p> |
| * In a multi-DC scenario, a single range will have nodes from both DCs. The replicas are grouped by DC here |
| * to allow per-DC validation as returned from the sidecar endpoint. |
| * <p> |
| * Ranges that including leaving node replicas will have [RF + no. leaving nodes in replica-set] replicas with |
| * the new replicas being the existing nodes in ring-order. |
| * <p> |
| * eg. |
| * Range 1 - A, B, C |
| * Range 2 - B, C, D (with D being the leaving node) |
| * Expected Range 2 - B, C, D, A (With A taking over the range of the leaving node) |
| */ |
| private Map<String, Map<Range<BigInteger>, List<String>>> generateExpectedRangeHalveClusterSizeMultiDC() |
| { |
| List<Range<BigInteger>> expectedRanges = generateExpectedRanges(); |
| Map<Range<BigInteger>, List<String>> dc1Mapping = new HashMap<>(); |
| Map<Range<BigInteger>, List<String>> dc2Mapping = new HashMap<>(); |
| |
| dc1Mapping.put(expectedRanges.get(0), Arrays.asList("127.0.0.1", "127.0.0.3", "127.0.0.5")); |
| dc2Mapping.put(expectedRanges.get(0), Arrays.asList("127.0.0.2", "127.0.0.4", "127.0.0.6")); |
| |
| dc1Mapping.put(expectedRanges.get(1), |
| Arrays.asList("127.0.0.3", "127.0.0.5", "127.0.0.7", "127.0.0.1")); |
| dc2Mapping.put(expectedRanges.get(1), Arrays.asList("127.0.0.2", "127.0.0.4", "127.0.0.6")); |
| |
| dc1Mapping.put(expectedRanges.get(2), |
| Arrays.asList("127.0.0.3", "127.0.0.5", "127.0.0.7", "127.0.0.1")); |
| dc2Mapping.put(expectedRanges.get(2), |
| Arrays.asList("127.0.0.4", "127.0.0.6", "127.0.0.8", "127.0.0.2")); |
| |
| dc1Mapping.put( |
| expectedRanges.get(3), |
| Arrays.asList("127.0.0.5", "127.0.0.7", "127.0.0.9", "127.0.0.1", "127.0.0.3")); |
| dc2Mapping.put(expectedRanges.get(3), |
| Arrays.asList("127.0.0.4", "127.0.0.6", "127.0.0.8", "127.0.0.2")); |
| |
| dc1Mapping.put( |
| expectedRanges.get(4), |
| Arrays.asList("127.0.0.5", "127.0.0.7", "127.0.0.9", "127.0.0.1", "127.0.0.3")); |
| dc2Mapping.put( |
| expectedRanges.get(4), |
| Arrays.asList("127.0.0.6", "127.0.0.8", "127.0.0.10", "127.0.0.2", "127.0.0.4")); |
| |
| dc1Mapping.put( |
| expectedRanges.get(5), |
| Arrays.asList("127.0.0.7", "127.0.0.9", "127.0.0.11", "127.0.0.1", "127.0.0.3", |
| "127.0.0.5")); |
| dc2Mapping.put( |
| expectedRanges.get(5), |
| Arrays.asList("127.0.0.6", "127.0.0.8", "127.0.0.10", "127.0.0.2", "127.0.0.4")); |
| |
| dc1Mapping.put( |
| expectedRanges.get(6), |
| Arrays.asList("127.0.0.7", "127.0.0.9", "127.0.0.11", "127.0.0.1", "127.0.0.3", |
| "127.0.0.5")); |
| dc2Mapping.put( |
| expectedRanges.get(6), |
| Arrays.asList("127.0.0.8", "127.0.0.10", "127.0.0.12", "127.0.0.2", "127.0.0.4", |
| "127.0.0.6")); |
| |
| dc1Mapping.put( |
| expectedRanges.get(7), |
| Arrays.asList("127.0.0.9", "127.0.0.11", "127.0.0.1", "127.0.0.3", "127.0.0.5")); |
| dc2Mapping.put( |
| expectedRanges.get(7), |
| Arrays.asList("127.0.0.8", "127.0.0.10", "127.0.0.12", "127.0.0.2", "127.0.0.4", |
| "127.0.0.6")); |
| |
| dc1Mapping.put( |
| expectedRanges.get(8), |
| Arrays.asList("127.0.0.9", "127.0.0.11", "127.0.0.1", "127.0.0.3", "127.0.0.5")); |
| dc2Mapping.put( |
| expectedRanges.get(8), |
| Arrays.asList("127.0.0.10", "127.0.0.12", "127.0.0.2", "127.0.0.4", "127.0.0.6")); |
| |
| dc1Mapping.put(expectedRanges.get(9), |
| Arrays.asList("127.0.0.11", "127.0.0.1", "127.0.0.3", "127.0.0.5")); |
| dc2Mapping.put( |
| expectedRanges.get(9), |
| Arrays.asList("127.0.0.10", "127.0.0.12", "127.0.0.2", "127.0.0.4", "127.0.0.6")); |
| |
| dc1Mapping.put(expectedRanges.get(10), |
| Arrays.asList("127.0.0.11", "127.0.0.1", "127.0.0.3", "127.0.0.5")); |
| dc2Mapping.put(expectedRanges.get(10), |
| Arrays.asList("127.0.0.12", "127.0.0.2", "127.0.0.4", "127.0.0.6")); |
| |
| dc1Mapping.put(expectedRanges.get(11), Arrays.asList("127.0.0.1", "127.0.0.3", "127.0.0.5")); |
| dc2Mapping.put(expectedRanges.get(11), |
| Arrays.asList("127.0.0.12", "127.0.0.2", "127.0.0.4", "127.0.0.6")); |
| |
| dc1Mapping.put(expectedRanges.get(12), Arrays.asList("127.0.0.1", "127.0.0.3", "127.0.0.5")); |
| dc2Mapping.put(expectedRanges.get(12), Arrays.asList("127.0.0.2", "127.0.0.4", "127.0.0.6")); |
| |
| return new HashMap<String, Map<Range<BigInteger>, List<String>>>() |
| { |
| { |
| put("datacenter1", dc1Mapping); |
| put("datacenter2", dc2Mapping); |
| } |
| }; |
| } |
| |
| /** |
| * ByteBuddy helper for halve cluster size with multi-DC |
| */ |
| @Shared |
| public static class BBHelperHalveClusterMultiDC |
| { |
| static CountDownLatch transientStateStart = new CountDownLatch(6); |
| static CountDownLatch transientStateEnd = new CountDownLatch(6); |
| |
| public static void install(ClassLoader cl, Integer nodeNumber) |
| { |
| // Test case involves halving the size of a 12 node cluster (6 per DC) |
| // We intercept the shutdown of the removed nodes (7-12) to validate token ranges |
| if (nodeNumber > 6) |
| { |
| TypePool typePool = TypePool.Default.of(cl); |
| TypeDescription description = typePool.describe("org.apache.cassandra.service.StorageService") |
| .resolve(); |
| new ByteBuddy().rebase(description, ClassFileLocator.ForClassLoader.of(cl)) |
| .method(named("unbootstrap")) |
| .intercept(MethodDelegation.to(BBHelperHalveClusterMultiDC.class)) |
| // Defer class loading until all dependencies are loaded |
| .make(TypeResolutionStrategy.Lazy.INSTANCE, typePool) |
| .load(cl, ClassLoadingStrategy.Default.INJECTION); |
| } |
| } |
| |
| @SuppressWarnings("unused") |
| public static void unbootstrap(@SuperCall Callable<?> orig) throws Exception |
| { |
| transientStateStart.countDown(); |
| Uninterruptibles.awaitUninterruptibly(transientStateEnd); |
| orig.call(); |
| } |
| |
| public static void reset() |
| { |
| transientStateStart = new CountDownLatch(6); |
| transientStateEnd = new CountDownLatch(6); |
| } |
| } |
| } |