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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.clustercontroller.core;
import com.yahoo.jrt.ErrorCode;
import com.yahoo.jrt.Request;
import com.yahoo.jrt.Spec;
import com.yahoo.jrt.StringValue;
import com.yahoo.jrt.Supervisor;
import com.yahoo.jrt.Target;
import com.yahoo.jrt.Transport;
import com.yahoo.vdslib.state.Node;
import com.yahoo.vdslib.state.NodeState;
import com.yahoo.vdslib.state.NodeType;
import com.yahoo.vdslib.state.State;
import org.junit.jupiter.api.Test;
import java.util.Map;
import java.util.TreeMap;
import java.util.logging.Logger;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class DatabaseTest extends FleetControllerTest {
private static final Logger log = Logger.getLogger(DatabaseTest.class.getName());
@Test
void testWantedStatesInZooKeeper() throws Exception {
startingTest("DatabaseTest::testWantedStatesInZooKeeper");
FleetControllerOptions options = defaultOptions("mycluster");
options.zooKeeperServerAddress = "127.0.0.1";
setUpFleetController(true, options);
setUpVdsNodes(true, new DummyVdsNodeOptions());
log.info("WAITING FOR STABLE SYSTEM");
waitForStableSystem();
log.info("VALIDATE STARTING WANTED STATES");
Map<Node, NodeState> wantedStates = new TreeMap<>();
for (DummyVdsNode node : nodes) {
wantedStates.put(node.getNode(), new NodeState(node.getType(), State.UP));
}
assertWantedStates(wantedStates);
log.info("SET A WANTED STATE AND SEE THAT IT GETS PROPAGATED");
setWantedState(new Node(NodeType.STORAGE, 3), new NodeState(NodeType.STORAGE, State.MAINTENANCE).setDescription("Yoo"), wantedStates);
waitForState("version:\\d+ distributor:10 storage:10 .3.s:m");
assertWantedStates(wantedStates);
log.info("SET ANOTHER WANTED STATE AND SEE THAT IT GETS PROPAGATED");
setWantedState(new Node(NodeType.DISTRIBUTOR, 2), new NodeState(NodeType.DISTRIBUTOR, State.DOWN), wantedStates);
waitForState("version:\\d+ distributor:10 .2.s:d storage:10 .3.s:m");
assertWantedStates(wantedStates);
log.info("SET YET ANOTHER WANTED STATE AND SEE THAT IT GETS PROPAGATED");
setWantedState(new Node(NodeType.STORAGE, 7), new NodeState(NodeType.STORAGE, State.RETIRED).setDescription("We wanna replace this node"), wantedStates);
waitForState("version:\\d+ distributor:10 .2.s:d storage:10 .3.s:m .7.s:r");
assertWantedStates(wantedStates);
log.info("CHECK THAT WANTED STATES PERSIST FLEETCONTROLLER RESTART");
stopFleetController();
startFleetController();
waitForState("version:\\d+ distributor:10 .2.s:d storage:10 .3.s:m .7.s:r");
assertWantedStates(wantedStates);
log.info("CLEAR WANTED STATE");
setWantedState(new Node(NodeType.STORAGE, 7), new NodeState(NodeType.STORAGE, State.UP), wantedStates);
assertWantedStates(wantedStates);
setWantedState(new Node(NodeType.DISTRIBUTOR, 5), new NodeState(NodeType.DISTRIBUTOR, State.DOWN), wantedStates);
assertWantedStates(wantedStates);
setWantedState(new Node(NodeType.DISTRIBUTOR, 2), new NodeState(NodeType.DISTRIBUTOR, State.UP), wantedStates);
assertWantedStates(wantedStates);
setWantedState(new Node(NodeType.STORAGE, 9), new NodeState(NodeType.STORAGE, State.DOWN), wantedStates);
assertWantedStates(wantedStates);
}
@Test
void testWantedStateOfUnknownNode() throws Exception {
startingTest("DatabaseTest::testWantedStatesOfUnknownNode");
FleetControllerOptions options = defaultOptions("mycluster");
options.minRatioOfDistributorNodesUp = 0;
options.minRatioOfStorageNodesUp = 0;
options.zooKeeperServerAddress = "localhost";
setUpFleetController(true, options);
setUpVdsNodes(true, new DummyVdsNodeOptions());
waitForStableSystem();
// Populate map of wanted states we should have
Map<Node, NodeState> wantedStates = new TreeMap<>();
for (DummyVdsNode node : nodes) {
wantedStates.put(node.getNode(), new NodeState(node.getType(), State.UP));
}
assertWantedStates(wantedStates);
setWantedState(new Node(NodeType.STORAGE, 1), new NodeState(NodeType.STORAGE, State.MAINTENANCE).setDescription("Yoo"), wantedStates);
waitForState("version:\\d+ distributor:10 storage:10 .1.s:m");
assertWantedStates(wantedStates);
// This should not show up, as it is down
setWantedState(new Node(NodeType.DISTRIBUTOR, 8), new NodeState(NodeType.DISTRIBUTOR, State.DOWN), wantedStates);
waitForState("version:\\d+ distributor:10 .8.s:d storage:10 .1.s:m");
assertWantedStates(wantedStates);
// This should show up, as down nodes can be turned to maintenance
setWantedState(new Node(NodeType.STORAGE, 6), new NodeState(NodeType.STORAGE, State.MAINTENANCE).setDescription("foobar"), wantedStates);
waitForState("version:\\d+ distributor:10 .8.s:d storage:10 .1.s:m .6.s:m");
assertWantedStates(wantedStates);
// This should not show up, as we cannot turn a down node retired
setWantedState(new Node(NodeType.STORAGE, 7), new NodeState(NodeType.STORAGE, State.RETIRED).setDescription("foobar"), wantedStates);
waitForState("version:\\d+ distributor:10 .8.s:d storage:10 .1.s:m .6.s:m .7.s:r");
assertWantedStates(wantedStates);
// This should not show up, as it is down
setWantedState(new Node(NodeType.STORAGE, 8), new NodeState(NodeType.STORAGE, State.DOWN).setDescription("foobar"), wantedStates);
waitForState("version:\\d+ distributor:10 .8.s:d storage:10 .1.s:m .6.s:m .7.s:r .8.s:d");
assertWantedStates(wantedStates);
stopFleetController();
for (int i = 6; i < nodes.size(); ++i) nodes.get(i).disconnect();
startFleetController();
waitForState("version:\\d+ distributor:3 storage:7 .1.s:m .3.s:d .4.s:d .5.s:d .6.s:m");
setWantedState(new Node(NodeType.STORAGE, 6), new NodeState(NodeType.STORAGE, State.UP), wantedStates);
waitForState("version:\\d+ distributor:3 storage:3 .1.s:m");
for (int i = 6; i < nodes.size(); ++i) nodes.get(i).connect();
waitForState("version:\\d+ distributor:10 .8.s:d storage:10 .1.s:m .7.s:r .8.s:d");
assertWantedStates(wantedStates);
}
private void assertWantedStates(Map<Node, NodeState> wantedStates) {
for (DummyVdsNode node : nodes) {
assertEquals(wantedStates.get(node.getNode()), fleetController.getWantedNodeState(node.getNode()), node.getNode().toString());
}
}
// Note: different semantics than FleetControllerTest.setWantedState
private void setWantedState(Node n, NodeState ns, Map<Node, NodeState> wantedStates) {
int rpcPort = fleetController.getRpcPort();
if (supervisor == null) {
supervisor = new Supervisor(new Transport());
}
Target connection = supervisor.connect(new Spec("localhost", rpcPort));
assertTrue(connection.isValid());
Request req = new Request("setNodeState");
req.parameters().add(new StringValue("storage/cluster.mycluster/" + n.getType().toString() + "/" + n.getIndex()));
req.parameters().add(new StringValue(ns.serialize(true)));
connection.invokeSync(req, timeoutS);
assertEquals(ErrorCode.NONE, req.errorCode(), req.toString());
assertTrue(req.checkReturnTypes("s"), req.toString());
wantedStates.put(n, ns);
}
}
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