@Test
public void shouldReturnActiveShardsWhenOneGoesOffline() {
GenericObjectPoolConfig redisConfig = new GenericObjectPoolConfig();
redisConfig.setTestOnBorrow(false);
ShardedJedisPool pool = new ShardedJedisPool(redisConfig, shards);
ShardedJedis jedis = pool.getResource();
// fill the shards
for (int i = 0; i < 1000; i++) {
jedis.set("a-test-" + i, "0");
}
pool.returnResource(jedis);
// check quantity for each shard
Jedis j = new Jedis(shards.get(0));
j.connect();
Long c1 = j.dbSize();
j.disconnect();
j = new Jedis(shards.get(1));
j.connect();
Long c2 = j.dbSize();
j.disconnect();
// shutdown shard 2 and check thay the pool returns an instance with c1
// items on one shard
// alter shard 1 and recreate pool
pool.destroy();
shards.set(1, new JedisShardInfo("localhost", 1234));
pool = new ShardedJedisPool(redisConfig, shards);
jedis = pool.getResource();
Long actual = Long.valueOf(0);
Long fails = Long.valueOf(0);
for (int i = 0; i < 1000; i++) {
try {
jedis.get("a-test-" + i);
actual++;
} catch (RuntimeException e) {
fails++;
}
}
pool.returnResource(jedis);
pool.destroy();
assertEquals(actual, c1);
assertEquals(fails, c2);
}