/*
* 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;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.*;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;
import static org.junit.Assert.*;
import org.apache.cassandra.gms.Gossiper;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.config.Schema;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.Util;
import org.apache.cassandra.config.KSMetaData;
import org.apache.cassandra.dht.*;
import org.apache.cassandra.gms.ApplicationState;
import org.apache.cassandra.gms.VersionedValue;
import org.apache.cassandra.locator.AbstractReplicationStrategy;
import org.apache.cassandra.locator.SimpleSnitch;
import org.apache.cassandra.locator.TokenMetadata;
public class MoveTest
{
private static final IPartitioner partitioner = new RandomPartitioner();
private static IPartitioner oldPartitioner;
/*
* NOTE: the tests above uses RandomPartitioner, which is not the default
* test partitioner. Changing the partitioner should be done before
* loading the schema as loading the schema trigger the write of sstables.
* So instead of extending SchemaLoader, we call it's method below.
*/
@BeforeClass
public static void setup() throws ConfigurationException
{
oldPartitioner = StorageService.instance.setPartitionerUnsafe(partitioner);
SchemaLoader.loadSchema();
}
@AfterClass
public static void tearDown()
{
StorageService.instance.setPartitionerUnsafe(oldPartitioner);
SchemaLoader.stopGossiper();
}
/*
* Test whether write endpoints is correct when the node is moving. Uses
* StorageService.onChange and does not manipulate token metadata directly.
*/
@Test
public void newTestWriteEndpointsDuringMove() throws Exception
{
StorageService ss = StorageService.instance;
final int RING_SIZE = 10;
final int MOVING_NODE = 3; // index of the moving node
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
VersionedValue.VersionedValueFactory valueFactory = new VersionedValue.VersionedValueFactory(partitioner);
ArrayList<Token> endpointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
List<UUID> hostIds = new ArrayList<UUID>();
Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, RING_SIZE);
Map<Token, List<InetAddress>> expectedEndpoints = new HashMap<Token, List<InetAddress>>();
for (Token token : keyTokens)
{
List<InetAddress> endpoints = new ArrayList<InetAddress>();
Iterator<Token> tokenIter = TokenMetadata.ringIterator(tmd.sortedTokens(), token, false);
while (tokenIter.hasNext())
{
endpoints.add(tmd.getEndpoint(tokenIter.next()));
}
expectedEndpoints.put(token, endpoints);
}
// node LEAVING_NODE should move to this token
Token newToken = positionToken(MOVING_NODE);
// Third node leaves
ss.onChange(hosts.get(MOVING_NODE), ApplicationState.STATUS, valueFactory.moving(newToken));
PendingRangeCalculatorService.instance.blockUntilFinished();
assertTrue(tmd.isMoving(hosts.get(MOVING_NODE)));
AbstractReplicationStrategy strategy;
for (String keyspaceName : Schema.instance.getNonSystemKeyspaces())
{
strategy = getStrategy(keyspaceName, tmd);
int numMoved = 0;
for (Token token : keyTokens)
{
int replicationFactor = strategy.getReplicationFactor();
HashSet<InetAddress> actual = new HashSet<InetAddress>(tmd.getWriteEndpoints(token, keyspaceName, strategy.calculateNaturalEndpoints(token, tmd.cloneOnlyTokenMap())));
HashSet<InetAddress> expected = new HashSet<InetAddress>();
for (int i = 0; i < replicationFactor; i++)
{
expected.add(expectedEndpoints.get(token).get(i));
}
if (expected.size() == actual.size()) {
assertEquals("mismatched endpoint sets", expected, actual);
} else {
expected.add(hosts.get(MOVING_NODE));
assertEquals("mismatched endpoint sets", expected, actual);
numMoved++;
}
}
// This assertion isn't reliable in 2.0 and 2.1. See CASSANDRA-7390
// assertEquals("mismatched number of moved token", numMoved, 1);
}
// moving endpoint back to the normal state
ss.onChange(hosts.get(MOVING_NODE), ApplicationState.STATUS, valueFactory.normal(Collections.singleton(newToken)));
}
/*
* Test ranges and write endpoints when multiple nodes are on the move simultaneously
*/
@Test
public void testSimultaneousMove() throws UnknownHostException
{
StorageService ss = StorageService.instance;
final int RING_SIZE = 10;
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
IPartitioner partitioner = new RandomPartitioner();
VersionedValue.VersionedValueFactory valueFactory = new VersionedValue.VersionedValueFactory(partitioner);
ArrayList<Token> endpointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
List<UUID> hostIds = new ArrayList<UUID>();
// create a ring or 10 nodes
Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, RING_SIZE);
// nodes 6, 8 and 9 leave
final int[] MOVING = new int[] {6, 8, 9};
Map<Integer, Token> newTokens = new HashMap<Integer, Token>();
for (int movingIndex : MOVING)
{
Token newToken = positionToken(movingIndex);
ss.onChange(hosts.get(movingIndex), ApplicationState.STATUS, valueFactory.moving(newToken));
// storing token associated with a node index
newTokens.put(movingIndex, newToken);
}
Collection<InetAddress> endpoints;
tmd = tmd.cloneAfterAllSettled();
ss.setTokenMetadataUnsafe(tmd);
// boot two new nodes with keyTokens.get(5) and keyTokens.get(7)
InetAddress boot1 = InetAddress.getByName("127.0.1.1");
Gossiper.instance.initializeNodeUnsafe(boot1, UUID.randomUUID(), 1);
Gossiper.instance.injectApplicationState(boot1, ApplicationState.TOKENS, valueFactory.tokens(Collections.singleton(keyTokens.get(5))));
ss.onChange(boot1,
ApplicationState.STATUS,
valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(5))));
InetAddress boot2 = InetAddress.getByName("127.0.1.2");
Gossiper.instance.initializeNodeUnsafe(boot2, UUID.randomUUID(), 1);
Gossiper.instance.injectApplicationState(boot2, ApplicationState.TOKENS, valueFactory.tokens(Collections.singleton(keyTokens.get(7))));
ss.onChange(boot2,
ApplicationState.STATUS,
valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(7))));
PendingRangeCalculatorService.instance.blockUntilFinished();
// don't require test update every time a new keyspace is added to test/conf/cassandra.yaml
Map<String, AbstractReplicationStrategy> keyspaceStrategyMap = new HashMap<String, AbstractReplicationStrategy>();
for (int i = 1; i <= 4; i++)
{
keyspaceStrategyMap.put("Keyspace" + i, getStrategy("Keyspace" + i, tmd));
}
/**
* Keyspace1 & Keyspace2 RF=1
* {
* /127.0.0.1=[(97,0]],
* /127.0.0.2=[(0,10]],
* /127.0.0.3=[(10,20]],
* /127.0.0.4=[(20,30]],
* /127.0.0.5=[(30,40]],
* /127.0.0.6=[(40,50]],
* /127.0.0.7=[(50,67]],
* /127.0.0.8=[(67,70]],
* /127.0.0.9=[(70,87]],
* /127.0.0.10=[(87,97]]
* }
*/
Multimap<InetAddress, Range<Token>> keyspace1ranges = keyspaceStrategyMap.get("Keyspace1").getAddressRanges();
Collection<Range<Token>> ranges1 = keyspace1ranges.get(InetAddress.getByName("127.0.0.1"));
assertEquals(1, collectionSize(ranges1));
assertEquals(generateRange(97, 0), ranges1.iterator().next());
Collection<Range<Token>> ranges2 = keyspace1ranges.get(InetAddress.getByName("127.0.0.2"));
assertEquals(1, collectionSize(ranges2));
assertEquals(generateRange(0, 10), ranges2.iterator().next());
Collection<Range<Token>> ranges3 = keyspace1ranges.get(InetAddress.getByName("127.0.0.3"));
assertEquals(1, collectionSize(ranges3));
assertEquals(generateRange(10, 20), ranges3.iterator().next());
Collection<Range<Token>> ranges4 = keyspace1ranges.get(InetAddress.getByName("127.0.0.4"));
assertEquals(1, collectionSize(ranges4));
assertEquals(generateRange(20, 30), ranges4.iterator().next());
Collection<Range<Token>> ranges5 = keyspace1ranges.get(InetAddress.getByName("127.0.0.5"));
assertEquals(1, collectionSize(ranges5));
assertEquals(generateRange(30, 40), ranges5.iterator().next());
Collection<Range<Token>> ranges6 = keyspace1ranges.get(InetAddress.getByName("127.0.0.6"));
assertEquals(1, collectionSize(ranges6));
assertEquals(generateRange(40, 50), ranges6.iterator().next());
Collection<Range<Token>> ranges7 = keyspace1ranges.get(InetAddress.getByName("127.0.0.7"));
assertEquals(1, collectionSize(ranges7));
assertEquals(generateRange(50, 67), ranges7.iterator().next());
Collection<Range<Token>> ranges8 = keyspace1ranges.get(InetAddress.getByName("127.0.0.8"));
assertEquals(1, collectionSize(ranges8));
assertEquals(generateRange(67, 70), ranges8.iterator().next());
Collection<Range<Token>> ranges9 = keyspace1ranges.get(InetAddress.getByName("127.0.0.9"));
assertEquals(1, collectionSize(ranges9));
assertEquals(generateRange(70, 87), ranges9.iterator().next());
Collection<Range<Token>> ranges10 = keyspace1ranges.get(InetAddress.getByName("127.0.0.10"));
assertEquals(1, collectionSize(ranges10));
assertEquals(generateRange(87, 97), ranges10.iterator().next());
/**
* Keyspace3 RF=5
* {
* /127.0.0.1=[(97,0], (70,87], (50,67], (87,97], (67,70]],
* /127.0.0.2=[(97,0], (70,87], (87,97], (0,10], (67,70]],
* /127.0.0.3=[(97,0], (70,87], (87,97], (0,10], (10,20]],
* /127.0.0.4=[(97,0], (20,30], (87,97], (0,10], (10,20]],
* /127.0.0.5=[(97,0], (30,40], (20,30], (0,10], (10,20]],
* /127.0.0.6=[(40,50], (30,40], (20,30], (0,10], (10,20]],
* /127.0.0.7=[(40,50], (30,40], (50,67], (20,30], (10,20]],
* /127.0.0.8=[(40,50], (30,40], (50,67], (20,30], (67,70]],
* /127.0.0.9=[(40,50], (70,87], (30,40], (50,67], (67,70]],
* /127.0.0.10=[(40,50], (70,87], (50,67], (87,97], (67,70]]
* }
*/
Multimap<InetAddress, Range<Token>> keyspace3ranges = keyspaceStrategyMap.get("Keyspace3").getAddressRanges();
ranges1 = keyspace3ranges.get(InetAddress.getByName("127.0.0.1"));
assertEquals(collectionSize(ranges1), 5);
assertTrue(ranges1.equals(generateRanges(97, 0, 70, 87, 50, 67, 87, 97, 67, 70)));
ranges2 = keyspace3ranges.get(InetAddress.getByName("127.0.0.2"));
assertEquals(collectionSize(ranges2), 5);
assertTrue(ranges2.equals(generateRanges(97, 0, 70, 87, 87, 97, 0, 10, 67, 70)));
ranges3 = keyspace3ranges.get(InetAddress.getByName("127.0.0.3"));
assertEquals(collectionSize(ranges3), 5);
assertTrue(ranges3.equals(generateRanges(97, 0, 70, 87, 87, 97, 0, 10, 10, 20)));
ranges4 = keyspace3ranges.get(InetAddress.getByName("127.0.0.4"));
assertEquals(collectionSize(ranges4), 5);
assertTrue(ranges4.equals(generateRanges(97, 0, 20, 30, 87, 97, 0, 10, 10, 20)));
ranges5 = keyspace3ranges.get(InetAddress.getByName("127.0.0.5"));
assertEquals(collectionSize(ranges5), 5);
assertTrue(ranges5.equals(generateRanges(97, 0, 30, 40, 20, 30, 0, 10, 10, 20)));
ranges6 = keyspace3ranges.get(InetAddress.getByName("127.0.0.6"));
assertEquals(collectionSize(ranges6), 5);
assertTrue(ranges6.equals(generateRanges(40, 50, 30, 40, 20, 30, 0, 10, 10, 20)));
ranges7 = keyspace3ranges.get(InetAddress.getByName("127.0.0.7"));
assertEquals(collectionSize(ranges7), 5);
assertTrue(ranges7.equals(generateRanges(40, 50, 30, 40, 50, 67, 20, 30, 10, 20)));
ranges8 = keyspace3ranges.get(InetAddress.getByName("127.0.0.8"));
assertEquals(collectionSize(ranges8), 5);
assertTrue(ranges8.equals(generateRanges(40, 50, 30, 40, 50, 67, 20, 30, 67, 70)));
ranges9 = keyspace3ranges.get(InetAddress.getByName("127.0.0.9"));
assertEquals(collectionSize(ranges9), 5);
assertTrue(ranges9.equals(generateRanges(40, 50, 70, 87, 30, 40, 50, 67, 67, 70)));
ranges10 = keyspace3ranges.get(InetAddress.getByName("127.0.0.10"));
assertEquals(collectionSize(ranges10), 5);
assertTrue(ranges10.equals(generateRanges(40, 50, 70, 87, 50, 67, 87, 97, 67, 70)));
/**
* Keyspace4 RF=3
* {
* /127.0.0.1=[(97,0], (70,87], (87,97]],
* /127.0.0.2=[(97,0], (87,97], (0,10]],
* /127.0.0.3=[(97,0], (0,10], (10,20]],
* /127.0.0.4=[(20,30], (0,10], (10,20]],
* /127.0.0.5=[(30,40], (20,30], (10,20]],
* /127.0.0.6=[(40,50], (30,40], (20,30]],
* /127.0.0.7=[(40,50], (30,40], (50,67]],
* /127.0.0.8=[(40,50], (50,67], (67,70]],
* /127.0.0.9=[(70,87], (50,67], (67,70]],
* /127.0.0.10=[(70,87], (87,97], (67,70]]
* }
*/
Multimap<InetAddress, Range<Token>> keyspace4ranges = keyspaceStrategyMap.get("Keyspace4").getAddressRanges();
ranges1 = keyspace4ranges.get(InetAddress.getByName("127.0.0.1"));
assertEquals(collectionSize(ranges1), 3);
assertTrue(ranges1.equals(generateRanges(97, 0, 70, 87, 87, 97)));
ranges2 = keyspace4ranges.get(InetAddress.getByName("127.0.0.2"));
assertEquals(collectionSize(ranges2), 3);
assertTrue(ranges2.equals(generateRanges(97, 0, 87, 97, 0, 10)));
ranges3 = keyspace4ranges.get(InetAddress.getByName("127.0.0.3"));
assertEquals(collectionSize(ranges3), 3);
assertTrue(ranges3.equals(generateRanges(97, 0, 0, 10, 10, 20)));
ranges4 = keyspace4ranges.get(InetAddress.getByName("127.0.0.4"));
assertEquals(collectionSize(ranges4), 3);
assertTrue(ranges4.equals(generateRanges(20, 30, 0, 10, 10, 20)));
ranges5 = keyspace4ranges.get(InetAddress.getByName("127.0.0.5"));
assertEquals(collectionSize(ranges5), 3);
assertTrue(ranges5.equals(generateRanges(30, 40, 20, 30, 10, 20)));
ranges6 = keyspace4ranges.get(InetAddress.getByName("127.0.0.6"));
assertEquals(collectionSize(ranges6), 3);
assertTrue(ranges6.equals(generateRanges(40, 50, 30, 40, 20, 30)));
ranges7 = keyspace4ranges.get(InetAddress.getByName("127.0.0.7"));
assertEquals(collectionSize(ranges7), 3);
assertTrue(ranges7.equals(generateRanges(40, 50, 30, 40, 50, 67)));
ranges8 = keyspace4ranges.get(InetAddress.getByName("127.0.0.8"));
assertEquals(collectionSize(ranges8), 3);
assertTrue(ranges8.equals(generateRanges(40, 50, 50, 67, 67, 70)));
ranges9 = keyspace4ranges.get(InetAddress.getByName("127.0.0.9"));
assertEquals(collectionSize(ranges9), 3);
assertTrue(ranges9.equals(generateRanges(70, 87, 50, 67, 67, 70)));
ranges10 = keyspace4ranges.get(InetAddress.getByName("127.0.0.10"));
assertEquals(collectionSize(ranges10), 3);
assertTrue(ranges10.equals(generateRanges(70, 87, 87, 97, 67, 70)));
// pre-calculate the results.
Map<String, Multimap<Token, InetAddress>> expectedEndpoints = new HashMap<String, Multimap<Token, InetAddress>>();
expectedEndpoints.put("Keyspace1", HashMultimap.<Token, InetAddress>create());
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.1.1"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10"));
expectedEndpoints.put("Keyspace2", HashMultimap.<Token, InetAddress>create());
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.1.1"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10"));
expectedEndpoints.put("Keyspace3", HashMultimap.<Token, InetAddress>create());
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2", "127.0.0.3", "127.0.0.4", "127.0.0.5", "127.0.0.6"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3", "127.0.0.4", "127.0.0.5", "127.0.0.6", "127.0.0.7", "127.0.1.1"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4", "127.0.0.5", "127.0.0.6", "127.0.0.7", "127.0.0.8", "127.0.1.1"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5", "127.0.0.6", "127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.1.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6", "127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.0.10", "127.0.1.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.1.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3", "127.0.1.2"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3", "127.0.0.4"));
expectedEndpoints.put("Keyspace4", HashMultimap.<Token, InetAddress>create());
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2", "127.0.0.3", "127.0.0.4"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3", "127.0.0.4", "127.0.0.5"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4", "127.0.0.5", "127.0.0.6"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5", "127.0.0.6", "127.0.0.7", "127.0.1.1"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6", "127.0.0.7", "127.0.0.8", "127.0.1.1"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.1.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.1.2"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10", "127.0.0.1", "127.0.0.2"));
for (Map.Entry<String, AbstractReplicationStrategy> keyspaceStrategy : keyspaceStrategyMap.entrySet())
{
String keyspaceName = keyspaceStrategy.getKey();
AbstractReplicationStrategy strategy = keyspaceStrategy.getValue();
for (Token token : keyTokens)
{
endpoints = tmd.getWriteEndpoints(token, keyspaceName, strategy.getNaturalEndpoints(token));
assertEquals(expectedEndpoints.get(keyspaceName).get(token).size(), endpoints.size());
assertTrue(expectedEndpoints.get(keyspaceName).get(token).containsAll(endpoints));
}
// just to be sure that things still work according to the old tests, run them:
if (strategy.getReplicationFactor() != 3)
continue;
// tokens 5, 15 and 25 should go three nodes
for (int i = 0; i < 3; i++)
{
endpoints = tmd.getWriteEndpoints(keyTokens.get(i), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(i)));
assertEquals(3, endpoints.size());
assertTrue(endpoints.contains(hosts.get(i+1)));
assertTrue(endpoints.contains(hosts.get(i+2)));
assertTrue(endpoints.contains(hosts.get(i+3)));
}
// token 35 should go to nodes 4, 5, 6 and boot1
endpoints = tmd.getWriteEndpoints(keyTokens.get(3), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(3)));
assertEquals(4, endpoints.size());
assertTrue(endpoints.contains(hosts.get(4)));
assertTrue(endpoints.contains(hosts.get(5)));
assertTrue(endpoints.contains(hosts.get(6)));
assertTrue(endpoints.contains(boot1));
// token 45 should go to nodes 5, 6, 7 boot1
endpoints = tmd.getWriteEndpoints(keyTokens.get(4), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(4)));
assertEquals(4, endpoints.size());
assertTrue(endpoints.contains(hosts.get(5)));
assertTrue(endpoints.contains(hosts.get(6)));
assertTrue(endpoints.contains(hosts.get(7)));
assertTrue(endpoints.contains(boot1));
// token 55 should go to nodes 6, 7, 8 boot1 and boot2
endpoints = tmd.getWriteEndpoints(keyTokens.get(5), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(5)));
assertEquals(5, endpoints.size());
assertTrue(endpoints.contains(hosts.get(6)));
assertTrue(endpoints.contains(hosts.get(7)));
assertTrue(endpoints.contains(hosts.get(8)));
assertTrue(endpoints.contains(boot1));
assertTrue(endpoints.contains(boot2));
// token 65 should go to nodes 6, 7, 8 and boot2
endpoints = tmd.getWriteEndpoints(keyTokens.get(6), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(6)));
assertEquals(4, endpoints.size());
assertTrue(endpoints.contains(hosts.get(6)));
assertTrue(endpoints.contains(hosts.get(7)));
assertTrue(endpoints.contains(hosts.get(8)));
assertTrue(endpoints.contains(boot2));
// token 75 should to go nodes 8, 9, 0 and boot2
endpoints = tmd.getWriteEndpoints(keyTokens.get(7), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(7)));
assertEquals(4, endpoints.size());
assertTrue(endpoints.contains(hosts.get(8)));
assertTrue(endpoints.contains(hosts.get(9)));
assertTrue(endpoints.contains(hosts.get(0)));
assertTrue(endpoints.contains(boot2));
// token 85 should go to nodes 8, 9 and 0
endpoints = tmd.getWriteEndpoints(keyTokens.get(8), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(8)));
assertEquals(3, endpoints.size());
assertTrue(endpoints.contains(hosts.get(8)));
assertTrue(endpoints.contains(hosts.get(9)));
assertTrue(endpoints.contains(hosts.get(0)));
// token 95 should go to nodes 9, 0 and 1
endpoints = tmd.getWriteEndpoints(keyTokens.get(9), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(9)));
assertEquals(3, endpoints.size());
assertTrue(endpoints.contains(hosts.get(9)));
assertTrue(endpoints.contains(hosts.get(0)));
assertTrue(endpoints.contains(hosts.get(1)));
}
// all moving nodes are back to the normal state
for (Integer movingIndex : MOVING)
{
ss.onChange(hosts.get(movingIndex),
ApplicationState.STATUS,
valueFactory.normal(Collections.singleton(newTokens.get(movingIndex))));
}
}
@Test
public void testStateJumpToNormal() throws UnknownHostException
{
StorageService ss = StorageService.instance;
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
IPartitioner partitioner = new RandomPartitioner();
VersionedValue.VersionedValueFactory valueFactory = new VersionedValue.VersionedValueFactory(partitioner);
ArrayList<Token> endpointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
List<UUID> hostIds = new ArrayList<UUID>();
// create a ring or 6 nodes
Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, 6);
// node 2 leaves
Token newToken = positionToken(7);
ss.onChange(hosts.get(2), ApplicationState.STATUS, valueFactory.moving(newToken));
assertTrue(tmd.isMoving(hosts.get(2)));
assertEquals(endpointTokens.get(2), tmd.getToken(hosts.get(2)));
// back to normal
Gossiper.instance.injectApplicationState(hosts.get(2), ApplicationState.TOKENS, valueFactory.tokens(Collections.singleton(newToken)));
ss.onChange(hosts.get(2), ApplicationState.STATUS, valueFactory.normal(Collections.singleton(newToken)));
assertTrue(tmd.getMovingEndpoints().isEmpty());
assertEquals(newToken, tmd.getToken(hosts.get(2)));
newToken = positionToken(8);
// node 2 goes through leave and left and then jumps to normal at its new token
ss.onChange(hosts.get(2), ApplicationState.STATUS, valueFactory.moving(newToken));
Gossiper.instance.injectApplicationState(hosts.get(2), ApplicationState.TOKENS, valueFactory.tokens(Collections.singleton(newToken)));
ss.onChange(hosts.get(2), ApplicationState.STATUS, valueFactory.normal(Collections.singleton(newToken)));
assertTrue(tmd.getBootstrapTokens().isEmpty());
assertTrue(tmd.getMovingEndpoints().isEmpty());
assertEquals(newToken, tmd.getToken(hosts.get(2)));
}
private static Collection<InetAddress> makeAddrs(String... hosts) throws UnknownHostException
{
ArrayList<InetAddress> addrs = new ArrayList<InetAddress>(hosts.length);
for (String host : hosts)
addrs.add(InetAddress.getByName(host));
return addrs;
}
private AbstractReplicationStrategy getStrategy(String keyspaceName, TokenMetadata tmd)
{
KSMetaData ksmd = Schema.instance.getKSMetaData(keyspaceName);
return AbstractReplicationStrategy.createReplicationStrategy(
keyspaceName,
ksmd.strategyClass,
tmd,
new SimpleSnitch(),
ksmd.strategyOptions);
}
private Token positionToken(int position)
{
return new BigIntegerToken(String.valueOf(10 * position + 7));
}
private int collectionSize(Collection<?> collection)
{
if (collection.isEmpty())
return 0;
Iterator<?> iterator = collection.iterator();
int count = 0;
while (iterator.hasNext())
{
iterator.next();
count++;
}
return count;
}
private Collection<Range<Token>> generateRanges(int... rangePairs)
{
if (rangePairs.length % 2 == 1)
throw new RuntimeException("generateRanges argument count should be even");
Set<Range<Token>> ranges = new HashSet<Range<Token>>();
for (int i = 0; i < rangePairs.length; i+=2)
{
ranges.add(generateRange(rangePairs[i], rangePairs[i+1]));
}
return ranges;
}
private Range<Token> generateRange(int left, int right)
{
return new Range<Token>(new BigIntegerToken(String.valueOf(left)), new BigIntegerToken(String.valueOf(right)));
}
}