@Test
public void testMigrateToNewNode() throws InterruptedException {
log.info("test migrate slot to new node");
Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
jedisClusterNode.add(nodeInfo1);
JedisCluster jc = new JedisCluster(jedisClusterNode);
node4.clusterMeet(localHost, nodeInfo1.getPort());
String node3Id = JedisClusterTestUtil.getNodeId(node3.clusterNodes());
String node4Id = JedisClusterTestUtil.getNodeId(node4.clusterNodes());
JedisClusterTestUtil.waitForClusterReady(node4);
node3.clusterSetSlotMigrating(15363, node4Id);
node4.clusterSetSlotImporting(15363, node3Id);
try {
node4.set("e", "e");
} catch (JedisMovedDataException jme) {
assertEquals(15363, jme.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo3.getPort()), jme.getTargetNode());
}
try {
node3.set("e", "e");
} catch (JedisAskDataException jae) {
assertEquals(15363, jae.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo4.getPort()), jae.getTargetNode());
}
jc.set("e", "e");
try {
node4.get("e");
} catch (JedisMovedDataException jme) {
assertEquals(15363, jme.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo3.getPort()), jme.getTargetNode());
}
try {
node3.get("e");
} catch (JedisAskDataException jae) {
assertEquals(15363, jae.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo4.getPort()), jae.getTargetNode());
}
assertEquals("e", jc.get("e"));
node4.clusterSetSlotNode(15363, node4Id);
node3.clusterSetSlotNode(15363, node4Id);
// assertEquals("e", jc.get("e"));
assertEquals("e", node4.get("e"));
// assertEquals("e", node3.get("e"));
}
/** slot->nodes 15363 node3 e */
@Test
public void testMigrate() {
log.info("test migrate slot");
Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
jedisClusterNode.add(nodeInfo1);
JedisCluster jc = new JedisCluster(jedisClusterNode);
String node3Id = JedisClusterTestUtil.getNodeId(node3.clusterNodes());
String node2Id = JedisClusterTestUtil.getNodeId(node2.clusterNodes());
node3.clusterSetSlotMigrating(15363, node2Id);
node2.clusterSetSlotImporting(15363, node3Id);
try {
node2.set("e", "e");
} catch (JedisMovedDataException jme) {
assertEquals(15363, jme.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo3.getPort()), jme.getTargetNode());
}
try {
node3.set("e", "e");
} catch (JedisAskDataException jae) {
assertEquals(15363, jae.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo2.getPort()), jae.getTargetNode());
}
jc.set("e", "e");
try {
node2.get("e");
} catch (JedisMovedDataException jme) {
assertEquals(15363, jme.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo3.getPort()), jme.getTargetNode());
}
try {
node3.get("e");
} catch (JedisAskDataException jae) {
assertEquals(15363, jae.getSlot());
assertEquals(new HostAndPort(localHost, nodeInfo2.getPort()), jae.getTargetNode());
}
assertEquals("e", jc.get("e"));
node2.clusterSetSlotNode(15363, node2Id);
node3.clusterSetSlotNode(15363, node2Id);
// assertEquals("e", jc.get("e"));
assertEquals("e", node2.get("e"));
// assertEquals("e", node3.get("e"));
}
@Test
public void testCloseable() throws IOException {
Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort(nodeInfo1.getHost(), nodeInfo1.getPort()));
JedisCluster jc = null;
try {
jc = new JedisCluster(jedisClusterNode);
jc.set("51", "foo");
} finally {
if (jc != null) {
jc.close();
}
}
Iterator<JedisPool> poolIterator = jc.getClusterNodes().values().iterator();
while (poolIterator.hasNext()) {
JedisPool pool = poolIterator.next();
try {
pool.getResource();
fail("JedisCluster's internal pools should be already destroyed");
} catch (JedisConnectionException e) {
// ok to go...
}
}
}
@Test
public void testClusterForgetNode() throws InterruptedException {
// at first, join node4 to cluster
node1.clusterMeet("127.0.0.1", nodeInfo4.getPort());
String node7Id = JedisClusterTestUtil.getNodeId(node4.clusterNodes());
JedisClusterTestUtil.assertNodeIsKnown(node3, node7Id, 1000);
JedisClusterTestUtil.assertNodeIsKnown(node2, node7Id, 1000);
JedisClusterTestUtil.assertNodeIsKnown(node1, node7Id, 1000);
assertNodeHandshakeEnded(node3, 1000);
assertNodeHandshakeEnded(node2, 1000);
assertNodeHandshakeEnded(node1, 1000);
assertEquals(4, node1.clusterNodes().split("\n").length);
assertEquals(4, node2.clusterNodes().split("\n").length);
assertEquals(4, node3.clusterNodes().split("\n").length);
// do cluster forget
node1.clusterForget(node7Id);
node2.clusterForget(node7Id);
node3.clusterForget(node7Id);
JedisClusterTestUtil.assertNodeIsUnknown(node1, node7Id, 1000);
JedisClusterTestUtil.assertNodeIsUnknown(node2, node7Id, 1000);
JedisClusterTestUtil.assertNodeIsUnknown(node3, node7Id, 1000);
assertEquals(3, node1.clusterNodes().split("\n").length);
assertEquals(3, node2.clusterNodes().split("\n").length);
assertEquals(3, node3.clusterNodes().split("\n").length);
}
@Test
public void testClusterCountKeysInSlot() {
Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort(nodeInfo1.getHost(), nodeInfo1.getPort()));
JedisCluster jc = new JedisCluster(jedisClusterNode);
for (int index = 0; index < 5; index++) {
jc.set("foo{bar}" + index, "hello");
}
int slot = JedisClusterCRC16.getSlot("foo{bar}");
assertEquals(5, node1.clusterCountKeysInSlot(slot).intValue());
}
@Test
public void testJedisClusterTimeout() {
Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort(nodeInfo1.getHost(), nodeInfo1.getPort()));
JedisCluster jc = new JedisCluster(jedisClusterNode, 4000);
for (JedisPool pool : jc.getClusterNodes().values()) {
Jedis jedis = pool.getResource();
assertEquals(jedis.getClient().getConnectionTimeout(), 4000);
assertEquals(jedis.getClient().getSoTimeout(), 4000);
jedis.close();
}
}
@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 testStableSlotWhenMigratingNodeOrImportingNodeIsNotSpecified()
throws InterruptedException {
Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
jedisClusterNode.add(new HostAndPort(nodeInfo1.getHost(), nodeInfo1.getPort()));
JedisCluster jc = new JedisCluster(jedisClusterNode);
int slot51 = JedisClusterCRC16.getSlot("51");
jc.set("51", "foo");
// node2 is responsible of taking care of slot51 (7186)
node3.clusterSetSlotImporting(slot51, JedisClusterTestUtil.getNodeId(node2.clusterNodes()));
assertEquals("foo", jc.get("51"));
node3.clusterSetSlotStable(slot51);
assertEquals("foo", jc.get("51"));
node2.clusterSetSlotMigrating(slot51, JedisClusterTestUtil.getNodeId(node3.clusterNodes()));
// assertEquals("foo", jc.get("51")); // it leads Max Redirections
node2.clusterSetSlotStable(slot51);
assertEquals("foo", jc.get("51"));
}
@Test
public void testReadonly() throws Exception {
node1.clusterMeet(localHost, nodeInfoSlave2.getPort());
JedisClusterTestUtil.waitForClusterReady(node1, node2, node3, nodeSlave2);
for (String nodeInfo : node2.clusterNodes().split("\n")) {
if (nodeInfo.contains("myself")) {
nodeSlave2.clusterReplicate(nodeInfo.split(" ")[0]);
break;
}
}
try {
nodeSlave2.get("test");
fail();
} catch (JedisMovedDataException e) {
}
nodeSlave2.readonly();
nodeSlave2.get("test");
nodeSlave2.clusterReset(Reset.SOFT);
nodeSlave2.flushDB();
}