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Use "sentinel failover" to force failover

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* Use "sentinel failover" to force failover
** faster than kill redis instances
* set failover timeout to 1 min
** It makes sense with failover within localhost
* reduce instances : 1 Redis Server and 1 Sentinel
** port is not changed -> I'll changed later at end of refactoring
This commit is contained in:
Jungtaek Lim
2014-02-15 10:30:01 +09:00
parent b2fa6b6c40
commit d2e073b2f2
2 changed files with 17 additions and 56 deletions
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25
src/test/java/redis/clients/jedis/tests/JedisSentinelPoolTest.java
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@@ -14,6 +14,7 @@ import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPubSub;
import redis.clients.jedis.JedisSentinelPool;
import redis.clients.jedis.Transaction;
import redis.clients.jedis.exceptions.JedisDataException;
public class JedisSentinelPoolTest extends JedisTestBase {
private static final String MASTER_NAME = "mymaster";
@@ -26,8 +27,6 @@ public class JedisSentinelPoolTest extends JedisTestBase {
.get(4);
protected static HostAndPort sentinel1 = HostAndPortUtil
.getSentinelServers().get(1);
protected static HostAndPort sentinel2 = HostAndPortUtil
.getSentinelServers().get(2);
protected static Jedis sentinelJedis1;
@@ -36,7 +35,6 @@ public class JedisSentinelPoolTest extends JedisTestBase {
@Before
public void setUp() throws Exception {
sentinels.add(sentinel1.toString());
sentinels.add(sentinel2.toString());
sentinelJedis1 = new Jedis(sentinel1.getHost(), sentinel1.getPort());
}
@@ -46,30 +44,25 @@ public class JedisSentinelPoolTest extends JedisTestBase {
JedisSentinelPool pool = new JedisSentinelPool(MASTER_NAME, sentinels,
new GenericObjectPoolConfig(), 1000, "foobared", 2);
// perform failover
doSegFaultMaster(pool);
// perform failover once again
doSegFaultMaster(pool);
forceFailover(pool);
forceFailover(pool);
// you can test failover as much as possible
// but you need to prepare additional slave per failover
}
private void doSegFaultMaster(JedisSentinelPool pool)
throws InterruptedException {
private void forceFailover(JedisSentinelPool pool) throws InterruptedException {
HostAndPort oldMaster = pool.getCurrentHostMaster();
// jedis connection should be master
Jedis jedis = pool.getResource();
assertEquals("PONG", jedis.ping());
try {
jedis.debug(DebugParams.SEGFAULT());
} catch (Exception e) {
}
// It can throw JedisDataException while there's no slave to promote
// There's nothing we can do, so we just pass Exception to make test fail fast
sentinelJedis1.sentinelFailover(MASTER_NAME);
waitForFailover(pool, oldMaster);
// JedisSentinelPool recognize master but may not changed internal pool yet
Thread.sleep(100);
jedis = pool.getResource();