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(mqapi/control) Repair repartition endpoint, deprecate notify endpoints.

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The repartition endpoint was mis-addressing its mqapi notifications, omitting the proper nodeId.  In fixing this, it became apparent that having both @MqRequest and @MqNotification is a serious footgun, and the two should be unified into a single API where the caller isn't burdened with knowledge of the remote end's implementation specifics.
This commit is contained in:
Viktor Lofgren 2023-11-27 16:01:12 +01:00
parent 09917837d0
commit 1dafa0c74d
16 changed files with 68 additions and 134 deletions
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10
code/api/index-api/src/main/java/nu/marginalia/index/client/IndexClient.java
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@ -17,7 +17,6 @@ import nu.marginalia.mq.outbox.MqOutbox;
import nu.marginalia.service.descriptor.ServiceDescriptors;
import nu.marginalia.service.id.ServiceId;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.CheckReturnValue;
@ -27,6 +26,7 @@ import java.util.UUID;
public class IndexClient extends AbstractDynamicClient {
private static final Summary wmsa_search_index_api_time = Summary.build().name("wmsa_search_index_api_time").help("-").register();
private final MessageQueueFactory messageQueueFactory;
MqOutbox outbox;
@ -36,6 +36,7 @@ public class IndexClient extends AbstractDynamicClient {
@Named("wmsa-system-node") Integer nodeId)
{
super(descriptors.forId(ServiceId.Index), GsonFactory::get);
this.messageQueueFactory = messageQueueFactory;
String inboxName = ServiceId.Index.name;
String outboxName = System.getProperty("service-name:"+nodeId, UUID.randomUUID().toString());
@ -76,4 +77,11 @@ public class IndexClient extends AbstractDynamicClient {
return super.get(ctx, node, "/is-blocked", Boolean.class);
}
public void triggerRepartition(int node) throws Exception {
messageQueueFactory.sendSingleShotRequest(
ServiceId.Index.withNode(node),
IndexMqEndpoints.INDEX_REPARTITION,
null
);
}
}

4
code/common/service-discovery/src/main/java/nu/marginalia/service/id/ServiceId.java
View File

@ -19,6 +19,10 @@ public enum ServiceId {
this.name = name;
}
public String withNode(int node) {
return name + ":" + node;
}
public static ServiceId byName(String name) {
for (ServiceId id : values()) {
if (id.name.equals(name)) {

9
code/common/service/src/main/java/nu/marginalia/service/server/mq/MqNotification.java
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@ -1,9 +0,0 @@
package nu.marginalia.service.server.mq;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
@Retention(RetentionPolicy.RUNTIME)
public @interface MqNotification {
String endpoint();
}

37
code/common/service/src/main/java/nu/marginalia/service/server/mq/ServiceMqSubscription.java
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@ -15,7 +15,6 @@ import java.util.Map;
public class ServiceMqSubscription implements MqSubscription {
private static final Logger logger = LoggerFactory.getLogger(ServiceMqSubscription.class);
private final Map<String, Method> requests = new HashMap<>();
private final Map<String, Method> notifications = new HashMap<>();
private final Service service;
@ -31,13 +30,6 @@ public class ServiceMqSubscription implements MqSubscription {
requests.put(annotation.endpoint(), method);
}
}
for (var method : service.getClass().getMethods()) {
var annotation = method.getAnnotation(MqNotification.class);
if (annotation != null) {
notifications.put(annotation.endpoint(), method);
}
}
}
@Override
@ -45,9 +37,6 @@ public class ServiceMqSubscription implements MqSubscription {
if (requests.containsKey(rawMessage.function())) {
return true;
}
if (notifications.containsKey(rawMessage.function())) {
return true;
}
logger.warn("Received message for unknown function " + rawMessage.function());
@ -58,8 +47,21 @@ public class ServiceMqSubscription implements MqSubscription {
public MqInboxResponse onRequest(MqMessage msg) {
var method = requests.get(msg.function());
if (null == method) {
logger.error("Received message for unregistered function handler " + msg.function());
return MqInboxResponse.err("[No handler]");
}
try {
return MqInboxResponse.ok(method.invoke(service, msg.payload()).toString());
if (method.getReturnType() == void.class) {
method.invoke(service, msg.payload());
return MqInboxResponse.ok();
}
else {
// Do we want to just toString() here? Gson? Something else?
String rv = method.invoke(service, msg.payload()).toString();
return MqInboxResponse.ok(rv);
}
}
catch (InvocationTargetException ex) {
logger.error("Error invoking method " + method, ex);
@ -71,15 +73,4 @@ public class ServiceMqSubscription implements MqSubscription {
}
}
@Override
public void onNotification(MqMessage msg) {
var method = notifications.get(msg.function());
try {
method.invoke(service, msg.payload());
}
catch (Exception ex) {
logger.error("Error invoking method " + method, ex);
}
}
}

6
code/libraries/message-queue/src/main/java/nu/marginalia/actor/ActorStateMachine.java
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@ -344,11 +344,6 @@ public class ActorStateMachine {
@Override
public MqInboxResponse onRequest(MqMessage msg) {
return null;
}
@Override
public void onNotification(MqMessage msg) {
onStateTransition(msg);
try {
stateChangeListeners.forEach(l -> l.accept(msg.function(), msg.payload()));
@ -357,6 +352,7 @@ public class ActorStateMachine {
// Rethrowing this will flag the message as an error in the message queue
throw new RuntimeException("Error in state change listener", ex);
}
return MqInboxResponse.ok();
}
}

9
code/libraries/message-queue/src/main/java/nu/marginalia/mq/MessageQueueFactory.java
View File

@ -3,12 +3,12 @@ package nu.marginalia.mq;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import nu.marginalia.mq.inbox.MqAsynchronousInbox;
import nu.marginalia.mq.inbox.MqInboxIf;
import nu.marginalia.mq.inbox.MqSingleShotInbox;
import nu.marginalia.mq.inbox.MqSynchronousInbox;
import nu.marginalia.mq.outbox.MqOutbox;
import nu.marginalia.mq.persistence.MqPersistence;
import javax.annotation.Nullable;
import java.util.UUID;
@Singleton
@ -41,4 +41,11 @@ public class MessageQueueFactory {
{
return new MqOutbox(persistence, inboxName, inboxNode, outboxName, outboxNode, instanceUUID);
}
/** Send a request to the specified inbox with a dummy reply inbox,
* do not wait for a response.
*/
public void sendSingleShotRequest(String inboxName, String function, @Nullable String payload) throws Exception {
persistence.sendNewMessage(inboxName, null, null, function, payload, null);
}
}

38
code/libraries/message-queue/src/main/java/nu/marginalia/mq/inbox/MqAsynchronousInbox.java
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@ -131,36 +131,25 @@ public class MqAsynchronousInbox implements MqInboxIf {
}
private void handleMessageWithSubscriber(MqSubscription subscriber, MqMessage msg) {
if (msg.expectsResponse()) {
threadPool.execute(() -> respondToMessage(subscriber, msg));
}
else {
threadPool.execute(() -> acknowledgeNotification(subscriber, msg));
}
threadPool.execute(() -> respondToMessage(subscriber, msg));
}
private void respondToMessage(MqSubscription subscriber, MqMessage msg) {
try {
final var rsp = subscriber.onRequest(msg);
sendResponse(msg, rsp.state(), rsp.message());
if (msg.expectsResponse()) {
sendResponse(msg, rsp.state(), rsp.message());
}
else {
registerResponse(msg, rsp.state());
}
} catch (Exception ex) {
logger.error("Message Queue subscriber threw exception", ex);
sendResponse(msg, MqMessageState.ERR);
registerResponse(msg, MqMessageState.ERR);
}
}
private void acknowledgeNotification(MqSubscription subscriber, MqMessage msg) {
try {
subscriber.onNotification(msg);
updateMessageState(msg, MqMessageState.OK);
} catch (Exception ex) {
logger.error("Message Queue subscriber threw exception", ex);
updateMessageState(msg, MqMessageState.ERR);
}
}
private void sendResponse(MqMessage msg, MqMessageState state) {
private void registerResponse(MqMessage msg, MqMessageState state) {
try {
persistence.updateMessageState(msg.msgId(), state);
}
@ -169,15 +158,6 @@ public class MqAsynchronousInbox implements MqInboxIf {
}
}
private void updateMessageState(MqMessage msg, MqMessageState state) {
try {
persistence.updateMessageState(msg.msgId(), state);
}
catch (SQLException ex2) {
logger.error("Failed to update message state", ex2);
}
}
private void sendResponse(MqMessage msg, MqMessageState mqMessageState, String response) {
try {
persistence.sendResponse(msg.msgId(), mqMessageState, response);

4
code/libraries/message-queue/src/main/java/nu/marginalia/mq/inbox/MqInboxShredder.java
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@ -22,8 +22,4 @@ class MqInboxShredder implements MqSubscription {
return MqInboxResponse.err();
}
@Override
public void onNotification(MqMessage msg) {
logger.warn("Unhandled message {}", msg.msgId());
}
}

2
code/libraries/message-queue/src/main/java/nu/marginalia/mq/inbox/MqSubscription.java
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@ -9,6 +9,4 @@ public interface MqSubscription {
/** Handle the message and return a response. */
MqInboxResponse onRequest(MqMessage msg);
/** Handle a message with no reply address */
void onNotification(MqMessage msg);
}

41
code/libraries/message-queue/src/main/java/nu/marginalia/mq/inbox/MqSynchronousInbox.java
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@ -80,37 +80,21 @@ public class MqSynchronousInbox implements MqInboxIf {
}
private void handleMessageWithSubscriber(MqSubscription subscriber, MqMessage msg) {
if (msg.expectsResponse()) {
respondToMessage(subscriber, msg);
}
else {
acknowledgeNotification(subscriber, msg);
}
}
private void respondToMessage(MqSubscription subscriber, MqMessage msg) {
try {
final var rsp = subscriber.onRequest(msg);
sendResponse(msg, rsp.state(), rsp.message());
if (msg.expectsResponse()) {
sendResponse(msg, rsp.state(), rsp.message());
}
else {
registerResponse(msg, rsp.state());
}
} catch (Exception ex) {
logger.error("Message Queue subscriber threw exception", ex);
sendResponse(msg, MqMessageState.ERR);
registerResponse(msg, MqMessageState.ERR);
}
}
private void acknowledgeNotification(MqSubscription subscriber, MqMessage msg) {
try {
subscriber.onNotification(msg);
updateMessageState(msg, MqMessageState.OK);
}
catch (Exception ex) {
logger.error("Message Queue subscriber threw exception", ex);
updateMessageState(msg, MqMessageState.ERR);
}
}
private void sendResponse(MqMessage msg, MqMessageState state) {
private void registerResponse(MqMessage msg, MqMessageState state) {
try {
persistence.updateMessageState(msg.msgId(), state);
}
@ -119,15 +103,6 @@ public class MqSynchronousInbox implements MqInboxIf {
}
}
private void updateMessageState(MqMessage msg, MqMessageState state) {
try {
persistence.updateMessageState(msg.msgId(), state);
}
catch (SQLException ex2) {
logger.error("Failed to update message state", ex2);
}
}
private void sendResponse(MqMessage msg, MqMessageState mqMessageState, String response) {
try {
persistence.sendResponse(msg.msgId(), mqMessageState, response);

4
code/libraries/message-queue/src/test/java/nu/marginalia/mq/outbox/MqOutboxTest.java
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@ -283,8 +283,6 @@ public class MqOutboxTest {
return MqInboxResponse.ok(response);
}
@Override
public void onNotification(MqMessage msg) { }
};
}
@ -300,8 +298,6 @@ public class MqOutboxTest {
return MqInboxResponse.ok(msg.payload());
}
@Override
public void onNotification(MqMessage msg) {}
};
}

14
code/processes/loading-process/src/test/java/nu/marginalia/loading/links/DomainLinksLoaderServiceTest.java
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@ -14,10 +14,7 @@ import nu.marginalia.model.processed.DomainLinkRecord;
import nu.marginalia.model.processed.DomainRecord;
import nu.marginalia.process.control.ProcessAdHocTaskHeartbeat;
import nu.marginalia.process.control.ProcessHeartbeat;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.*;
import org.mockito.Mockito;
import org.testcontainers.containers.MariaDBContainer;
import org.testcontainers.junit.jupiter.Container;
@ -33,6 +30,8 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
@Tag("slow")
@Testcontainers
@Disabled // Error in the SQL loading mechanism, we don't deal with DELIMITER correctly
// which means we can't get around flyway's bugs necessitating DELIMITER.
class DomainLinksLoaderServiceTest {
List<Path> toDelete = new ArrayList<>();
ProcessHeartbeat heartbeat;
@ -57,7 +56,10 @@ class DomainLinksLoaderServiceTest {
dataSource = new HikariDataSource(config);
List<String> migrations = List.of("db/migration/V23_11_0_007__domain_node_affinity.sql");
List<String> migrations = List.of(
"db/migration/V23_11_0_007__domain_node_affinity.sql",
"db/migration/V23_11_0_008__purge_procedure.sql"
);
for (String migration : migrations) {
try (var resource = Objects.requireNonNull(ClassLoader.getSystemResourceAsStream(migration),
"Could not load migration script " + migration);
@ -136,7 +138,7 @@ class DomainLinksLoaderServiceTest {
var input = new LoaderInputData(workDir, 2);
var domainRegistry = domainService.getOrCreateDomainIds(input);
var dls = new DomainLinksLoaderService(dataSource);
var dls = new DomainLinksLoaderService(dataSource, new ProcessConfiguration("test", 1, UUID.randomUUID()));
dls.loadLinks(domainRegistry, heartbeat, input);
Map<Integer, Set<Integer>> expected = new HashMap<>();

4
code/services-application/api-service/src/main/java/nu/marginalia/api/ApiService.java
View File

@ -11,7 +11,7 @@ import nu.marginalia.client.Context;
import nu.marginalia.model.gson.GsonFactory;
import nu.marginalia.query.client.QueryClient;
import nu.marginalia.service.server.*;
import nu.marginalia.service.server.mq.MqNotification;
import nu.marginalia.service.server.mq.MqRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.Marker;
@ -62,7 +62,7 @@ public class ApiService extends Service {
Spark.get("/public/api/:key/search/*", this::search, gson::toJson);
}
@MqNotification(endpoint = "FLUSH_CACHES")
@MqRequest(endpoint = "FLUSH_CACHES")
public void flushCaches(String unusedArg) {
logger.info("Flushing caches");

12
code/services-core/control-service/src/main/java/nu/marginalia/control/node/svc/ControlNodeActionsService.java
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@ -4,24 +4,15 @@ import com.google.inject.Inject;
import com.google.inject.Singleton;
import nu.marginalia.client.Context;
import nu.marginalia.control.RedirectControl;
import nu.marginalia.control.Redirects;
import nu.marginalia.db.DomainTypes;
import nu.marginalia.executor.client.ExecutorClient;
import nu.marginalia.index.client.IndexClient;
import nu.marginalia.index.client.IndexMqEndpoints;
import nu.marginalia.mq.MessageQueueFactory;
import nu.marginalia.mq.outbox.MqOutbox;
import nu.marginalia.mq.persistence.MqPersistence;
import nu.marginalia.service.control.ServiceEventLog;
import nu.marginalia.service.id.ServiceId;
import nu.marginalia.service.module.ServiceConfiguration;
import spark.Request;
import spark.Response;
import spark.Spark;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.UUID;
@Singleton
public class ControlNodeActionsService {
@ -112,7 +103,8 @@ public class ControlNodeActionsService {
}
public Object triggerRepartition(Request request, Response response) throws Exception {
indexClient.outbox().sendAsync(IndexMqEndpoints.INDEX_REPARTITION, "");
indexClient.triggerRepartition(Integer.parseInt(request.params("node")));
return "";
}

3
code/services-core/executor-service/src/main/java/nu/marginalia/executor/ExecutorSvc.java
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@ -11,7 +11,6 @@ import nu.marginalia.executor.model.ActorRunStates;
import nu.marginalia.executor.svc.*;
import nu.marginalia.service.server.BaseServiceParams;
import nu.marginalia.service.server.Service;
import nu.marginalia.service.server.mq.MqNotification;
import nu.marginalia.service.server.mq.MqRequest;
import nu.marginalia.storage.FileStorageService;
import org.slf4j.Logger;
@ -82,7 +81,7 @@ public class ExecutorSvc extends Service {
Spark.post("/transfer/yield", transferService::yieldDomain);
}
@MqNotification(endpoint="FIRST-BOOT")
@MqRequest(endpoint="FIRST-BOOT")
public void setUpDefaultActors(String message) throws Exception {
logger.info("Initializing default actors");
actorControlService.start(ExecutorActor.MONITOR_PROCESS_LIVENESS);

5
code/services-core/index-service/src/main/java/nu/marginalia/index/IndexService.java
View File

@ -15,7 +15,6 @@ import nu.marginalia.linkdb.LinkdbReader;
import nu.marginalia.model.gson.GsonFactory;
import nu.marginalia.service.control.ServiceEventLog;
import nu.marginalia.service.server.*;
import nu.marginalia.service.server.mq.MqNotification;
import nu.marginalia.service.server.mq.MqRequest;
import org.jetbrains.annotations.NotNull;
import org.slf4j.Logger;
@ -98,7 +97,7 @@ public class IndexService extends Service {
}
@SneakyThrows
@MqNotification(endpoint = IndexMqEndpoints.SWITCH_LINKDB)
@MqRequest(endpoint = IndexMqEndpoints.SWITCH_LINKDB)
public void switchLinkdb(String unusedArg) {
logger.info("Switching link database");
@ -112,7 +111,7 @@ public class IndexService extends Service {
}
}
@MqNotification(endpoint = IndexMqEndpoints.SWITCH_INDEX)
@MqRequest(endpoint = IndexMqEndpoints.SWITCH_INDEX)
public String switchIndex(String message) throws Exception {
if (!opsService.switchIndex()) {
throw new IllegalStateException("Ops lock busy");