@Before
public void setUp() throws InterruptedException {
node1 = new Jedis(nodeInfo1.getHost(), nodeInfo1.getPort());
node1.connect();
node1.flushAll();
node2 = new Jedis(nodeInfo2.getHost(), nodeInfo2.getPort());
node2.connect();
node2.flushAll();
node3 = new Jedis(nodeInfo3.getHost(), nodeInfo3.getPort());
node3.connect();
node3.flushAll();
node4 = new Jedis(nodeInfo4.getHost(), nodeInfo4.getPort());
node4.connect();
node4.flushAll();
nodeSlave2 = new Jedis(nodeInfoSlave2.getHost(), nodeInfoSlave2.getPort());
nodeSlave2.connect();
nodeSlave2.flushAll();
// ---- configure cluster
// add nodes to cluster
node1.clusterMeet(localHost, nodeInfo2.getPort());
node1.clusterMeet(localHost, nodeInfo3.getPort());
// split available slots across the three nodes
int slotsPerNode = JedisCluster.HASHSLOTS / 3;
int[] node1Slots = new int[slotsPerNode];
int[] node2Slots = new int[slotsPerNode + 1];
int[] node3Slots = new int[slotsPerNode];
for (int i = 0, slot1 = 0, slot2 = 0, slot3 = 0; i < JedisCluster.HASHSLOTS; i++) {
if (i < slotsPerNode) {
node1Slots[slot1++] = i;
} else if (i > slotsPerNode * 2) {
node3Slots[slot3++] = i;
} else {
node2Slots[slot2++] = i;
}
}
node1.clusterAddSlots(node1Slots);
node2.clusterAddSlots(node2Slots);
node3.clusterAddSlots(node3Slots);
JedisClusterTestUtil.waitForClusterReady(node1, node2, node3);
}
@Test
public void testRecalculateSlotsWhenMoved() throws InterruptedException {
Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort("127.0.0.1", 7379));
JedisCluster jc = new JedisCluster(jedisClusterNode);
int slot51 = JedisClusterCRC16.getSlot("51");
node2.clusterDelSlots(slot51);
node3.clusterDelSlots(slot51);
node3.clusterAddSlots(slot51);
JedisClusterTestUtil.waitForClusterReady(node1, node2, node3);
jc.set("51", "foo");
assertEquals("foo", jc.get("51"));
}
@Test
public void testClusterFlushSlots() {
String slotRange = getNodeServingSlotRange(node1.clusterNodes());
assertNotNull(slotRange);
try {
node1.clusterFlushSlots();
assertNull(getNodeServingSlotRange(node1.clusterNodes()));
} finally {
// rollback
String[] rangeInfo = slotRange.split("-");
int lower = Integer.parseInt(rangeInfo[0]);
int upper = Integer.parseInt(rangeInfo[1]);
int[] node1Slots = new int[upper - lower + 1];
for (int i = 0; lower <= upper; ) {
node1Slots[i++] = lower++;
}
node1.clusterAddSlots(node1Slots);
}
}