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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.orchestrator.controller;
import ai.vespa.hosted.client.MockHttpClient;
import com.yahoo.test.ManualClock;
import com.yahoo.vespa.applicationmodel.ApplicationInstanceId;
import com.yahoo.vespa.applicationmodel.HostName;
import com.yahoo.vespa.orchestrator.ApplicationStateChangeDeniedException;
import com.yahoo.vespa.orchestrator.OrchestratorContext;
import com.yahoo.vespa.orchestrator.model.ContentService;
import com.yahoo.vespa.orchestrator.policy.HostStateChangeDeniedException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
import java.time.Duration;
import java.util.List;
import static com.yahoo.vespa.orchestrator.controller.ClusterControllerNodeState.DOWN;
import static com.yahoo.vespa.orchestrator.controller.ClusterControllerNodeState.MAINTENANCE;
import static com.yahoo.vespa.orchestrator.controller.ClusterControllerNodeState.UP;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThrows;
/**
* @author jonmv
*/
public class ClusterControllerClientImplTest {
final HostName host = new HostName("node");
final ManualClock clock = new ManualClock();
final List<HostName> clusterControllers = List.of(new HostName("host1"), new HostName("host2"), new HostName("host3"));
MockHttpClient wire;
RetryingClusterControllerClientFactory factory;
ClusterControllerClient client;
@Before
public void setup() {
wire = new MockHttpClient();
factory = new RetryingClusterControllerClientFactory(wire);
client = factory.createClient(clusterControllers, "cc");
}
@After
public void teardown() {
factory.deconstruct();
}
@Test
public void verifySetNodeState() {
OrchestratorContext context = OrchestratorContext.createContextForSingleAppOp(clock);
wire.expect((url, body) -> {
assertEquals("http://host1:19050/cluster/v2/cc/storage/2?timeout=9.6",
url.asURI().toString());
assertEquals("{\"state\":{\"user\":{\"reason\":\"Orchestrator\",\"state\":\"down\"}},\"condition\":\"SAFE\"}",
body);
return "{ \"wasModified\": true }";
},
200);
client.setNodeState(context, host, 2, DOWN, ContentService.STORAGE_NODE, false);
clock.advance(Duration.ofSeconds(9));
wire.expect((url, body) -> {
assertEquals("http://host1:19050/cluster/v2/cc/storage/1?timeout=0.6",
url.asURI().toString());
assertEquals("{\"state\":{\"user\":{\"reason\":\"Orchestrator\",\"state\":\"down\"}},\"condition\":\"SAFE\"}",
body);
return "{ \"wasModified\": false, \"reason\": \"because\" }";
},
200);
assertEquals("Changing the state of node would violate controller-set-node-state: Failed to set state to DOWN in cluster controller: because",
assertThrows(HostStateChangeDeniedException.class,
() -> client.setNodeState(context, host, 1, DOWN, ContentService.STORAGE_NODE, false))
.getMessage());
}
@Test
public void verifyProbeNodeState() {
wire.expect((url, body) -> {
assertEquals("http://host1:19050/cluster/v2/cc/storage/2?timeout=59.6",
url.asURI().toString());
assertEquals("{\"state\":{\"user\":{\"reason\":\"Orchestrator\",\"state\":\"maintenance\"}},\"condition\":\"SAFE\",\"probe\":true}",
body);
return "{ \"wasModified\": false, \"reason\": \"no reason\" }";
},
200);
assertFalse(client.trySetNodeState(OrchestratorContext.createContextForBatchProbe(clock), host, 2, MAINTENANCE, ContentService.STORAGE_NODE, false));
}
@Test
public void verifySetApplicationState() {
wire.expect((url, body) -> {
assertEquals("http://host1:19050/cluster/v2/cc?timeout=299.6",
url.asURI().toString());
assertEquals("{\"state\":{\"user\":{\"reason\":\"Orchestrator\",\"state\":\"up\"}},\"condition\":\"FORCE\"}",
body);
return "{ \"message\": \":<\" }";
},
500);
assertEquals("Failed to set application app cluster name cc to cluster state UP due to: " +
"got status code 500 for POST http://host1:19050/cluster/v2/cc?timeout=299.6: :<",
assertThrows(ApplicationStateChangeDeniedException.class,
() -> client.setApplicationState(OrchestratorContext.createContextForAdminOp(clock),
new ApplicationInstanceId("app"),
UP))
.getMessage());
}
@Test
public void verifyRetriesUntilTimeout() {
OrchestratorContext context = OrchestratorContext.createContextForSingleAppOp(clock);
// IOException
wire.expect(request -> {
clock.advance(Duration.ofSeconds(6));
throw new IOException("Oh no!");
});
// Redirect
wire.expect((url, body) -> {
assertEquals("http://host2:19050/cluster/v2/cc/storage/2?timeout=3.6",
url.asURI().toString());
clock.advance(Duration.ofSeconds(4));
return "";
}, 302);
// Timeout
assertEquals("Changing the state of node would violate deadline: Timeout while waiting for setNodeState(2, UP) " +
"against [host1, host2, host3]: Timed out after PT10S",
assertThrows(HostStateChangeDeniedException.class,
() -> client.setNodeState(context, host, 2, UP, ContentService.STORAGE_NODE, false))
.getMessage());
}
@Test
public void testRetriesUntilExhaustion() {
OrchestratorContext context = OrchestratorContext.createContextForSingleAppOp(clock);
for (int i = 0; i < clusterControllers.size(); i++) {
int j = i + 1;
wire.expect((url, body) -> {
assertEquals("http://host" + j + ":19050/cluster/v2/cc/storage/2?timeout=9.6",
url.asURI().toString());
return "";
},
503);
}
// All retries exhausted
assertEquals("Changing the state of node would violate controller-set-node-state: Failed setting node 2 in cluster cc to state UP: " +
"got status code 503 for POST http://host1:19050/cluster/v2/cc/storage/2?timeout=9.6",
assertThrows(HostStateChangeDeniedException.class,
() -> client.setNodeState(context, host, 2, UP, ContentService.STORAGE_NODE, false))
.getMessage());
}
}
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