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Apply Sentinel runtime configuration API introduced on Redis 2.8.4

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* Implements new sentinel commands (failover, monitor, remove, set) 
* unit test included
** added 2 redis-server and 1 sentinel for failover test
* with some refactoring
** SentinelCommands : refactor to have interface
** HostAndPortUtil : same format to cluster setup
This commit is contained in:
Jungtaek Lim
2014-01-22 00:23:40 +09:00
parent 01842e4731
commit a50cf3b15e
8 changed files with 244 additions and 65 deletions
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136
src/test/java/redis/clients/jedis/tests/JedisSentinelTest.java
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@@ -1,5 +1,6 @@
package redis.clients.jedis.tests;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@@ -9,24 +10,28 @@ import org.junit.Test;
import redis.clients.jedis.HostAndPort;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.exceptions.JedisDataException;
import redis.clients.jedis.tests.utils.JedisSentinelTestUtil;
public class JedisSentinelTest extends JedisTestBase {
private static final String MASTER_NAME = "mymaster";
private static final String MONITOR_MASTER_NAME = "mymastermonitor";
private static final String REMOVE_MASTER_NAME = "mymasterremove";
private static final String FAILOVER_MASTER_NAME = "mymasterfailover";
private static final String MASTER_IP = "127.0.0.1";
protected static HostAndPort master = HostAndPortUtil.getRedisServers()
.get(0);
protected static HostAndPort slave = HostAndPortUtil.getRedisServers().get(
5);
protected static HostAndPort slave = HostAndPortUtil.getRedisServers().get(5);
protected static HostAndPort sentinel = HostAndPortUtil
.getSentinelServers().get(0);
protected static Jedis masterJedis;
protected static Jedis slaveJedis;
protected static Jedis sentinelJedis;
protected static HostAndPort sentinelForFailover = HostAndPortUtil.getSentinelServers()
.get(3);
protected static HostAndPort masterForFailover = HostAndPortUtil.getRedisServers().get(6);
@Before
public void setup() throws InterruptedException {
}
@After
@@ -36,30 +41,117 @@ public class JedisSentinelTest extends JedisTestBase {
// to restore it (demote)
// so, promote(slaveof) slave to master has no effect, not same to old
// Sentinel's behavior
ensureRemoved(MONITOR_MASTER_NAME);
ensureRemoved(REMOVE_MASTER_NAME);
}
@Test
public void sentinel() {
Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
List<Map<String, String>> masters = j.sentinelMasters();
final String masterName = masters.get(0).get("name");
assertEquals(MASTER_NAME, masterName);
List<String> masterHostAndPort = j
.sentinelGetMasterAddrByName(masterName);
boolean inMasters = false;
for (Map<String, String> master : masters)
if (MASTER_NAME.equals(master.get("name")))
inMasters = true;
assertTrue(inMasters);
List<String> masterHostAndPort = j.sentinelGetMasterAddrByName(MASTER_NAME);
HostAndPort masterFromSentinel = new HostAndPort(
masterHostAndPort.get(0), Integer.parseInt(masterHostAndPort
.get(1)));
assertEquals(master, masterFromSentinel);
List<Map<String, String>> slaves = j.sentinelSlaves(masterName);
List<Map<String, String>> slaves = j.sentinelSlaves(MASTER_NAME);
assertTrue(slaves.size() > 0);
assertEquals(master.getPort(),
Integer.parseInt(slaves.get(0).get("master-port")));
assertEquals(master.getPort(), Integer.parseInt(slaves.get(0).get("master-port")));
// DO NOT RE-RUN TEST TOO FAST, RESET TAKES SOME TIME TO... RESET
assertEquals(Long.valueOf(1), j.sentinelReset(masterName));
assertEquals(Long.valueOf(0), j.sentinelReset("woof" + masterName));
assertEquals(Long.valueOf(1), j.sentinelReset(MASTER_NAME));
assertEquals(Long.valueOf(0), j.sentinelReset("woof" + MASTER_NAME));
}
@Test
public void sentinelFailover() throws InterruptedException {
Jedis j = new Jedis(sentinelForFailover.getHost(), sentinelForFailover.getPort());
HostAndPort currentMaster = new HostAndPort(masterForFailover.getHost(), masterForFailover.getPort());
List<String> masterHostAndPort = j.sentinelGetMasterAddrByName(FAILOVER_MASTER_NAME);
String result = j.sentinelFailover(FAILOVER_MASTER_NAME);
assertEquals("OK", result);
JedisSentinelTestUtil.waitForNewPromotedMaster(sentinelForFailover, FAILOVER_MASTER_NAME, currentMaster);
masterHostAndPort = j.sentinelGetMasterAddrByName(FAILOVER_MASTER_NAME);
HostAndPort newMaster = new HostAndPort(masterHostAndPort.get(0),
Integer.parseInt(masterHostAndPort.get(1)));
assertNotEquals(newMaster, currentMaster);
}
@Test
public void sentinelMonitor() {
Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
// monitor new master
String result = j.sentinelMonitor(MONITOR_MASTER_NAME, MASTER_IP, master.getPort(), 1);
assertEquals("OK", result);
// already monitored
try {
j.sentinelMonitor(MONITOR_MASTER_NAME, MASTER_IP, master.getPort(), 1);
fail();
} catch (JedisDataException e) {
// pass
}
}
@Test
public void sentinelRemove() {
Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
ensureMonitored(sentinel, REMOVE_MASTER_NAME, MASTER_IP, master.getPort(), 1);
String result = j.sentinelRemove(REMOVE_MASTER_NAME);
assertEquals("OK", result);
// not exist
try {
result = j.sentinelRemove(REMOVE_MASTER_NAME);
assertNotEquals("OK", result);
fail();
} catch (JedisDataException e) {
// pass
}
}
@Test
public void sentinelSet() {
Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
Map<String, String> parameterMap = new HashMap<String, String>();
parameterMap.put("down-after-milliseconds", String.valueOf(3000));
parameterMap.put("parallel-syncs", String.valueOf(1));
j.sentinelSet(MASTER_NAME, parameterMap);
// cannot test "sentinel set" because there is no command "sentinel get"
}
private void ensureMonitored(HostAndPort sentinel, String masterName, String ip, int port, int quorum) {
Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
try {
j.sentinelMonitor(masterName, ip, port, quorum);
} catch (JedisDataException e) {
}
}
private void ensureRemoved(String masterName) {
Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
try {
j.sentinelRemove(masterName);
} catch (JedisDataException e) {
}
}
}