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* 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
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*/
package org.apache.cassandra.service;
import java.util.*;
import java.net.InetAddress;
import java.net.UnknownHostException;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;
import org.apache.cassandra.CleanupHelper;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.commons.lang.StringUtils;
import org.junit.Test;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import org.apache.cassandra.dht.IPartitioner;
import org.apache.cassandra.dht.RandomPartitioner;
import org.apache.cassandra.dht.Token;
import org.apache.cassandra.dht.Range;
import org.apache.cassandra.dht.BigIntegerToken;
import org.apache.cassandra.locator.AbstractReplicationStrategy;
import org.apache.cassandra.locator.RackUnawareStrategy;
import org.apache.cassandra.locator.TokenMetadata;
import org.apache.cassandra.gms.ApplicationState;
public class MoveTest extends CleanupHelper
{
// handy way of creating a mapping of strategies to use in StorageService.
private static Map<String, AbstractReplicationStrategy> createReplacements(AbstractReplicationStrategy strat)
{
Map<String, AbstractReplicationStrategy> replacements = new HashMap<String, AbstractReplicationStrategy>();
for (String table : DatabaseDescriptor.getTables())
replacements.put(table, strat);
return replacements;
}
/**
* Test whether write endpoints is correct when the node is leaving. Uses
* StorageService.onChange and does not manipulate token metadata directly.
*/
@Test
public void testWriteEndPointsDuringLeave() throws UnknownHostException
{
StorageService ss = StorageService.instance;
final int RING_SIZE = 5;
final int LEAVING_NODE = 2;
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
IPartitioner partitioner = new RandomPartitioner();
AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);
IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
Map<String, AbstractReplicationStrategy> oldStrategies = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));
ArrayList<Token> endPointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, RING_SIZE);
final Map<String, List<Range>> deadNodesRanges = new HashMap<String, List<Range>>();
for (String table : DatabaseDescriptor.getNonSystemTables())
{
List<Range> list = new ArrayList<Range>();
list.addAll(testStrategy.getAddressRanges(table).get(hosts.get(LEAVING_NODE)));
Collections.sort(list);
deadNodesRanges.put(table, list);
}
// Third node leaves
ss.onChange(hosts.get(LEAVING_NODE), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(LEAVING_NODE))));
// check that it is correctly marked as leaving in tmd
assertTrue(tmd.isLeaving(hosts.get(LEAVING_NODE)));
// check that pending ranges are correct (primary range should go to 1st node, first
// replica range to 4th node and 2nd replica range to 5th node)
for (String table : DatabaseDescriptor.getNonSystemTables())
{
int replicationFactor = DatabaseDescriptor.getReplicationFactor(table);
// if the ring minus the leaving node leaves us with less than RF, we're hosed.
if (hosts.size()-1 < replicationFactor)
continue;
// verify that the replicationFactor nodes after the leaving node are gatherings it's pending ranges.
// in the case where rf==5, we're screwed because we basically just lost data.
for (int i = 0; i < replicationFactor; i++)
{
assertTrue(tmd.getPendingRanges(table, hosts.get((LEAVING_NODE + 1 + i) % RING_SIZE)).size() > 0);
assertEquals(tmd.getPendingRanges(table, hosts.get((LEAVING_NODE + 1 + i) % RING_SIZE)).get(0), deadNodesRanges.get(table).get(i));
}
// note that we're iterating over nodes and sample tokens.
final int replicaStart = (LEAVING_NODE-replicationFactor+RING_SIZE)%RING_SIZE;
for (int i=0; i<keyTokens.size(); ++i)
{
Collection<InetAddress> endPoints = testStrategy.getWriteEndpoints(keyTokens.get(i), table, testStrategy.getNaturalEndpoints(keyTokens.get(i), table));
// figure out if this node is one of the nodes previous to the failed node (2).
boolean isReplica = (i - replicaStart + RING_SIZE) % RING_SIZE < replicationFactor;
// the preceeding leaving_node-replication_factor nodes should have and additional ep (replication_factor+1);
if (isReplica)
assertTrue(endPoints.size() == replicationFactor + 1);
else
assertTrue(endPoints.size() == replicationFactor);
}
}
ss.setPartitionerUnsafe(oldPartitioner);
ss.setReplicationStrategyUnsafe(oldStrategies);
}
/**
* Test pending 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();
AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);
IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));
ArrayList<Token> endPointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
// create a ring or 10 nodes
createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, RING_SIZE);
// nodes 6, 8 and 9 leave
final int[] LEAVING = new int[] { 6, 8, 9};
for (int leaving : LEAVING)
ss.onChange(hosts.get(leaving), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(leaving))));
// boot two new nodes with keyTokens.get(5) and keyTokens.get(7)
InetAddress boot1 = InetAddress.getByName("127.0.1.1");
ss.onChange(boot1, StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(5))));
InetAddress boot2 = InetAddress.getByName("127.0.1.2");
ss.onChange(boot2, StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(7))));
Collection<InetAddress> endPoints = null;
// 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", "127.0.0.8", "127.0.1.1"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.8"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2", "127.0.0.1"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.10", "127.0.0.1"));
expectedEndpoints.get("Keyspace1").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.1"));
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", "127.0.0.8", "127.0.1.1"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.8"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2", "127.0.0.1"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.10", "127.0.0.1"));
expectedEndpoints.get("Keyspace2").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.1"));
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", "127.0.0.8"));
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", "127.0.1.2", "127.0.0.1", "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", "127.0.1.2", "127.0.0.1", "127.0.0.2", "127.0.1.1"));
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", "127.0.1.2", "127.0.0.1", "127.0.0.2", "127.0.1.1", "127.0.0.3"));
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", "127.0.0.2", "127.0.0.3", "127.0.0.4", "127.0.1.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.8", "127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.1.2", "127.0.0.3", "127.0.0.4"));
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", "127.0.0.4", "127.0.0.5"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3", "127.0.0.4", "127.0.0.5"));
expectedEndpoints.get("Keyspace3").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.1", "127.0.0.2", "127.0.0.3", "127.0.0.4", "127.0.0.5"));
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", "127.0.0.8"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6", "127.0.0.7", "127.0.0.8", "127.0.1.2", "127.0.0.1", "127.0.1.1"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.0.1", "127.0.0.2", "127.0.1.1", "127.0.1.2"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.8", "127.0.0.9", "127.0.0.10", "127.0.1.2", "127.0.0.1", "127.0.0.2"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.1.2", "127.0.0.2", "127.0.0.3"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3"));
expectedEndpoints.get("Keyspace4").putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.1", "127.0.0.2", "127.0.0.3"));
for (String table : DatabaseDescriptor.getNonSystemTables())
{
for (int i = 0; i < keyTokens.size(); i++)
{
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(i), table, testStrategy.getNaturalEndpoints(keyTokens.get(i), table));
assertTrue(expectedEndpoints.get(table).get(keyTokens.get(i)).size() == endPoints.size());
assertTrue(expectedEndpoints.get(table).get(keyTokens.get(i)).containsAll(endPoints));
}
// just to be sure that things still work according to the old tests, run them:
if (DatabaseDescriptor.getReplicationFactor(table) != 3)
continue;
// tokens 5, 15 and 25 should go three nodes
for (int i=0; i<3; ++i)
{
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(i), table, testStrategy.getNaturalEndpoints(keyTokens.get(i), table));
assertTrue(endPoints.size() == 3);
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, 7 and boot1
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(3), table, testStrategy.getNaturalEndpoints(keyTokens.get(3), table));
assertTrue(endPoints.size() == 5);
assertTrue(endPoints.contains(hosts.get(4)));
assertTrue(endPoints.contains(hosts.get(5)));
assertTrue(endPoints.contains(hosts.get(6)));
assertTrue(endPoints.contains(hosts.get(7)));
assertTrue(endPoints.contains(boot1));
// token 45 should go to nodes 5, 6, 7, 0, boot1 and boot2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(4), table, testStrategy.getNaturalEndpoints(keyTokens.get(4), table));
assertTrue(endPoints.size() == 6);
assertTrue(endPoints.contains(hosts.get(5)));
assertTrue(endPoints.contains(hosts.get(6)));
assertTrue(endPoints.contains(hosts.get(7)));
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(boot1));
assertTrue(endPoints.contains(boot2));
// token 55 should go to nodes 6, 7, 8, 0, 1, boot1 and boot2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(5), table, testStrategy.getNaturalEndpoints(keyTokens.get(5), table));
assertTrue(endPoints.size() == 7);
assertTrue(endPoints.contains(hosts.get(6)));
assertTrue(endPoints.contains(hosts.get(7)));
assertTrue(endPoints.contains(hosts.get(8)));
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(boot1));
assertTrue(endPoints.contains(boot2));
// token 65 should go to nodes 7, 8, 9, 0, 1 and boot2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(6), table, testStrategy.getNaturalEndpoints(keyTokens.get(6), table));
assertTrue(endPoints.size() == 6);
assertTrue(endPoints.contains(hosts.get(7)));
assertTrue(endPoints.contains(hosts.get(8)));
assertTrue(endPoints.contains(hosts.get(9)));
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(boot2));
// token 75 should to go nodes 8, 9, 0, 1, 2 and boot2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(7), table, testStrategy.getNaturalEndpoints(keyTokens.get(7), table));
assertTrue(endPoints.size() == 6);
assertTrue(endPoints.contains(hosts.get(8)));
assertTrue(endPoints.contains(hosts.get(9)));
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(hosts.get(2)));
assertTrue(endPoints.contains(boot2));
// token 85 should go to nodes 9, 0, 1 and 2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(8), table, testStrategy.getNaturalEndpoints(keyTokens.get(8), table));
assertTrue(endPoints.size() == 4);
assertTrue(endPoints.contains(hosts.get(9)));
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(hosts.get(2)));
// token 95 should go to nodes 0, 1 and 2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(9), table, testStrategy.getNaturalEndpoints(keyTokens.get(9), table));
assertTrue(endPoints.size() == 3);
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(hosts.get(2)));
}
// Now finish node 6 and node 9 leaving, as well as boot1 (after this node 8 is still
// leaving and boot2 in progress
ss.onChange(hosts.get(LEAVING[0]), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(LEAVING[0]))));
ss.onChange(hosts.get(LEAVING[2]), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(LEAVING[2]))));
ss.onChange(boot1, StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(5))));
// adjust precalcuated results. this changes what the epected endpoints are.
expectedEndpoints.get("Keyspace1").get(new BigIntegerToken("55")).removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
expectedEndpoints.get("Keyspace1").get(new BigIntegerToken("85")).removeAll(makeAddrs("127.0.0.10"));
expectedEndpoints.get("Keyspace2").get(new BigIntegerToken("55")).removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
expectedEndpoints.get("Keyspace2").get(new BigIntegerToken("85")).removeAll(makeAddrs("127.0.0.10"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("15")).removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("25")).removeAll(makeAddrs("127.0.0.7", "127.0.1.2", "127.0.0.1"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("35")).removeAll(makeAddrs("127.0.0.7", "127.0.0.2"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("45")).removeAll(makeAddrs("127.0.0.7", "127.0.0.10", "127.0.0.3"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("55")).removeAll(makeAddrs("127.0.0.7", "127.0.0.10", "127.0.0.4"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("65")).removeAll(makeAddrs("127.0.0.10"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("75")).removeAll(makeAddrs("127.0.0.10"));
expectedEndpoints.get("Keyspace3").get(new BigIntegerToken("85")).removeAll(makeAddrs("127.0.0.10"));
expectedEndpoints.get("Keyspace4").get(new BigIntegerToken("35")).removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
expectedEndpoints.get("Keyspace4").get(new BigIntegerToken("45")).removeAll(makeAddrs("127.0.0.7", "127.0.1.2", "127.0.0.1"));
expectedEndpoints.get("Keyspace4").get(new BigIntegerToken("55")).removeAll(makeAddrs("127.0.0.2", "127.0.0.7"));
expectedEndpoints.get("Keyspace4").get(new BigIntegerToken("65")).removeAll(makeAddrs("127.0.0.10"));
expectedEndpoints.get("Keyspace4").get(new BigIntegerToken("75")).removeAll(makeAddrs("127.0.0.10"));
expectedEndpoints.get("Keyspace4").get(new BigIntegerToken("85")).removeAll(makeAddrs("127.0.0.10"));
for (String table : DatabaseDescriptor.getNonSystemTables())
{
for (int i = 0; i < keyTokens.size(); i++)
{
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(i), table, testStrategy.getNaturalEndpoints(keyTokens.get(i), table));
assertTrue(expectedEndpoints.get(table).get(keyTokens.get(i)).size() == endPoints.size());
assertTrue(expectedEndpoints.get(table).get(keyTokens.get(i)).containsAll(endPoints));
}
if (DatabaseDescriptor.getReplicationFactor(table) != 3)
continue;
// leave this stuff in to guarantee the old tests work the way they were supposed to.
// tokens 5, 15 and 25 should go three nodes
for (int i=0; i<3; ++i)
{
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(i), table, testStrategy.getNaturalEndpoints(keyTokens.get(i), table));
assertTrue(endPoints.size() == 3);
assertTrue(endPoints.contains(hosts.get(i+1)));
assertTrue(endPoints.contains(hosts.get(i+2)));
assertTrue(endPoints.contains(hosts.get(i+3)));
}
// token 35 goes to nodes 4, 5 and boot1
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(3), table, testStrategy.getNaturalEndpoints(keyTokens.get(3), table));
assertTrue(endPoints.size() == 3);
assertTrue(endPoints.contains(hosts.get(4)));
assertTrue(endPoints.contains(hosts.get(5)));
assertTrue(endPoints.contains(boot1));
// token 45 goes to nodes 5, boot1 and node7
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(4), table, testStrategy.getNaturalEndpoints(keyTokens.get(4), table));
assertTrue(endPoints.size() == 3);
assertTrue(endPoints.contains(hosts.get(5)));
assertTrue(endPoints.contains(boot1));
assertTrue(endPoints.contains(hosts.get(7)));
// token 55 goes to boot1, 7, boot2, 8 and 0
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(5), table, testStrategy.getNaturalEndpoints(keyTokens.get(5), table));
assertTrue(endPoints.size() == 5);
assertTrue(endPoints.contains(boot1));
assertTrue(endPoints.contains(hosts.get(7)));
assertTrue(endPoints.contains(boot2));
assertTrue(endPoints.contains(hosts.get(8)));
assertTrue(endPoints.contains(hosts.get(0)));
// token 65 goes to nodes 7, boot2, 8, 0 and 1
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(6), table, testStrategy.getNaturalEndpoints(keyTokens.get(6), table));
assertTrue(endPoints.size() == 5);
assertTrue(endPoints.contains(hosts.get(7)));
assertTrue(endPoints.contains(boot2));
assertTrue(endPoints.contains(hosts.get(8)));
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
// token 75 goes to nodes boot2, 8, 0, 1 and 2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(7), table, testStrategy.getNaturalEndpoints(keyTokens.get(7), table));
assertTrue(endPoints.size() == 5);
assertTrue(endPoints.contains(boot2));
assertTrue(endPoints.contains(hosts.get(8)));
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(hosts.get(2)));
// token 85 goes to nodes 0, 1 and 2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(8), table, testStrategy.getNaturalEndpoints(keyTokens.get(8), table));
assertTrue(endPoints.size() == 3);
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(hosts.get(2)));
// token 95 goes to nodes 0, 1 and 2
endPoints = testStrategy.getWriteEndpoints(keyTokens.get(9), table, testStrategy.getNaturalEndpoints(keyTokens.get(9), table));
assertTrue(endPoints.size() == 3);
assertTrue(endPoints.contains(hosts.get(0)));
assertTrue(endPoints.contains(hosts.get(1)));
assertTrue(endPoints.contains(hosts.get(2)));
}
ss.setPartitionerUnsafe(oldPartitioner);
ss.setReplicationStrategyUnsafe(oldStrategy);
}
@Test
public void testStateJumpToBootstrap() throws UnknownHostException
{
StorageService ss = StorageService.instance;
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
IPartitioner partitioner = new RandomPartitioner();
AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);
IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));
ArrayList<Token> endPointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
// create a ring or 5 nodes
createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);
// node 2 leaves
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(2))));
// don't bother to test pending ranges here, that is extensively tested by other
// tests. Just check that the node is in appropriate lists.
assertTrue(tmd.isMember(hosts.get(2)));
assertTrue(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getBootstrapTokens().isEmpty());
// Bootstrap the node immedidiately to keyTokens.get(4) without going through STATE_LEFT
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(4))));
assertFalse(tmd.isMember(hosts.get(2)));
assertFalse(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(4)).equals(hosts.get(2)));
// Bootstrap node hosts.get(3) to keyTokens.get(1)
ss.onChange(hosts.get(3), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));
assertFalse(tmd.isMember(hosts.get(3)));
assertFalse(tmd.isLeaving(hosts.get(3)));
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(4)).equals(hosts.get(2)));
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(1)).equals(hosts.get(3)));
// Bootstrap node hosts.get(2) further to keyTokens.get(3)
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(3))));
assertFalse(tmd.isMember(hosts.get(2)));
assertFalse(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(3)).equals(hosts.get(2)));
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(4)) == null);
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(1)).equals(hosts.get(3)));
// Go to normal again for both nodes
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(3))));
ss.onChange(hosts.get(3), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));
assertTrue(tmd.isMember(hosts.get(2)));
assertFalse(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(3)));
assertTrue(tmd.isMember(hosts.get(3)));
assertFalse(tmd.isLeaving(hosts.get(3)));
assertTrue(tmd.getToken(hosts.get(3)).equals(keyTokens.get(2)));
assertTrue(tmd.getBootstrapTokens().isEmpty());
ss.setPartitionerUnsafe(oldPartitioner);
ss.setReplicationStrategyUnsafe(oldStrategy);
}
@Test
public void testStateJumpToNormal() throws UnknownHostException
{
StorageService ss = StorageService.instance;
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
IPartitioner partitioner = new RandomPartitioner();
AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);
IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));
ArrayList<Token> endPointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
// create a ring or 5 nodes
createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);
// node 2 leaves
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(2))));
assertTrue(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getToken(hosts.get(2)).equals(endPointTokens.get(2)));
// back to normal
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));
assertTrue(tmd.getLeavingEndPoints().isEmpty());
assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(2)));
// node 3 goes through leave and left and then jumps to normal
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(4))));
assertTrue(tmd.getBootstrapTokens().isEmpty());
assertTrue(tmd.getLeavingEndPoints().isEmpty());
assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(4)));
ss.setPartitionerUnsafe(oldPartitioner);
ss.setReplicationStrategyUnsafe(oldStrategy);
}
@Test
public void testStateJumpToLeaving() throws UnknownHostException
{
StorageService ss = StorageService.instance;
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
IPartitioner partitioner = new RandomPartitioner();
AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);
IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));
ArrayList<Token> endPointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
// create a ring or 5 nodes
createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);
// node 2 leaves with _different_ token
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(0))));
assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(0)));
assertTrue(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getEndPoint(endPointTokens.get(2)) == null);
// go to boostrap
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));
assertFalse(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getBootstrapTokens().size() == 1);
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(1)).equals(hosts.get(2)));
// jump to leaving again
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));
assertTrue(tmd.getEndPoint(keyTokens.get(1)).equals(hosts.get(2)));
assertTrue(tmd.isLeaving(hosts.get(2)));
assertTrue(tmd.getBootstrapTokens().isEmpty());
// go to state left
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));
assertFalse(tmd.isMember(hosts.get(2)));
assertFalse(tmd.isLeaving(hosts.get(2)));
ss.setPartitionerUnsafe(oldPartitioner);
ss.setReplicationStrategyUnsafe(oldStrategy);
}
@Test
public void testStateJumpToLeft() throws UnknownHostException
{
StorageService ss = StorageService.instance;
TokenMetadata tmd = ss.getTokenMetadata();
tmd.clearUnsafe();
IPartitioner partitioner = new RandomPartitioner();
AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);
IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));
ArrayList<Token> endPointTokens = new ArrayList<Token>();
ArrayList<Token> keyTokens = new ArrayList<Token>();
List<InetAddress> hosts = new ArrayList<InetAddress>();
// create a ring or 5 nodes
createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);
// node hosts.get(2) goes jumps to left
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(2))));
assertFalse(tmd.isMember(hosts.get(2)));
// node hosts.get(4) goes to bootstrap
ss.onChange(hosts.get(3), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));
assertFalse(tmd.isMember(hosts.get(3)));
assertTrue(tmd.getBootstrapTokens().size() == 1);
assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(1)).equals(hosts.get(3)));
// and then directly to 'left'
ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));
assertTrue(tmd.getBootstrapTokens().size() == 0);
assertFalse(tmd.isMember(hosts.get(2)));
assertFalse(tmd.isLeaving(hosts.get(2)));
ss.setPartitionerUnsafe(oldPartitioner);
ss.setReplicationStrategyUnsafe(oldStrategy);
}
/**
* Creates initial set of nodes and tokens. Nodes are added to StorageService as 'normal'
*/
private void createInitialRing(StorageService ss, IPartitioner partitioner, List<Token> endPointTokens,
List<Token> keyTokens, List<InetAddress> hosts, int howMany)
throws UnknownHostException
{
for (int i=0; i<howMany; i++)
{
endPointTokens.add(new BigIntegerToken(String.valueOf(10 * i)));
keyTokens.add(new BigIntegerToken(String.valueOf(10 * i + 5)));
}
for (int i=0; i<endPointTokens.size(); i++)
{
InetAddress ep = InetAddress.getByName("127.0.0." + String.valueOf(i + 1));
ss.onChange(ep, StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(i))));
hosts.add(ep);
}
// check that all nodes are in token metadata
for (int i=0; i<endPointTokens.size(); ++i)
assertTrue(ss.getTokenMetadata().isMember(hosts.get(i)));
}
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;
}
}