update 优化 删除远程元数据中心配置与实现类 切换为本地读取简化dubbo用法

This commit is contained in:
疯狂的狮子Li
2026-03-26 13:49:42 +08:00
parent 4dca91d5f9
commit a5c508d167
4 changed files with 6 additions and 576 deletions

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@@ -1,538 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dubbo.metadata.store.redis;
import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.config.configcenter.ConfigItem;
import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.utils.*;
import org.apache.dubbo.metadata.MappingChangedEvent;
import org.apache.dubbo.metadata.MappingListener;
import org.apache.dubbo.metadata.MetadataInfo;
import org.apache.dubbo.metadata.ServiceNameMapping;
import org.apache.dubbo.metadata.report.identifier.*;
import org.apache.dubbo.metadata.report.support.AbstractMetadataReport;
import org.apache.dubbo.rpc.RpcException;
import redis.clients.jedis.*;
import redis.clients.jedis.params.SetParams;
import redis.clients.jedis.util.JedisClusterCRC16;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import static org.apache.dubbo.common.constants.CommonConstants.*;
import static org.apache.dubbo.common.constants.LoggerCodeConstants.TRANSPORT_FAILED_RESPONSE;
import static org.apache.dubbo.metadata.MetadataConstants.META_DATA_STORE_TAG;
import static org.apache.dubbo.metadata.ServiceNameMapping.DEFAULT_MAPPING_GROUP;
import static org.apache.dubbo.metadata.ServiceNameMapping.getAppNames;
import static org.apache.dubbo.metadata.report.support.Constants.DEFAULT_METADATA_REPORT_CYCLE_REPORT;
/**
* RedisMetadataReport
*/
public class RedisMetadataReport extends AbstractMetadataReport {
private static final String REDIS_DATABASE_KEY = "database";
private static final ErrorTypeAwareLogger logger = LoggerFactory.getErrorTypeAwareLogger(RedisMetadataReport.class);
// protected , for test
protected JedisPool pool;
private Set<HostAndPort> jedisClusterNodes;
private int timeout;
private String username;
private String password;
private final String root;
private final ConcurrentHashMap<String, MappingDataListener> mappingDataListenerMap = new ConcurrentHashMap<>();
private SetParams jedisParams = SetParams.setParams();
public RedisMetadataReport(URL url) {
super(url);
timeout = url.getParameter(TIMEOUT_KEY, DEFAULT_TIMEOUT);
username = url.getUsername();
password = url.getPassword();
this.root = url.getGroup(DEFAULT_ROOT);
if (url.getParameter(CYCLE_REPORT_KEY, DEFAULT_METADATA_REPORT_CYCLE_REPORT)) {
// ttl default is twice the cycle-report time
jedisParams.px(ONE_DAY_IN_MILLISECONDS * 2);
}
if (url.getParameter(CLUSTER_KEY, false)) {
jedisClusterNodes = new HashSet<>();
List<URL> urls = url.getBackupUrls();
for (URL tmpUrl : urls) {
jedisClusterNodes.add(new HostAndPort(tmpUrl.getHost(), tmpUrl.getPort()));
}
} else {
int database = url.getParameter(REDIS_DATABASE_KEY, 0);
pool = new JedisPool(new JedisPoolConfig(), url.getHost(), url.getPort(), timeout, username, password, database);
}
}
@Override
protected void doStoreProviderMetadata(MetadataIdentifier providerMetadataIdentifier, String serviceDefinitions) {
this.storeMetadata(providerMetadataIdentifier, serviceDefinitions, true);
}
@Override
protected void doStoreConsumerMetadata(MetadataIdentifier consumerMetadataIdentifier, String value) {
this.storeMetadata(consumerMetadataIdentifier, value, true);
}
@Override
protected void doSaveMetadata(ServiceMetadataIdentifier serviceMetadataIdentifier, URL url) {
this.storeMetadata(serviceMetadataIdentifier, URL.encode(url.toFullString()), false);
}
@Override
protected void doRemoveMetadata(ServiceMetadataIdentifier serviceMetadataIdentifier) {
this.deleteMetadata(serviceMetadataIdentifier);
}
@Override
protected List<String> doGetExportedURLs(ServiceMetadataIdentifier metadataIdentifier) {
String content = getMetadata(metadataIdentifier);
if (StringUtils.isEmpty(content)) {
return Collections.emptyList();
}
return new ArrayList<>(Arrays.asList(URL.decode(content)));
}
@Override
protected void doSaveSubscriberData(SubscriberMetadataIdentifier subscriberMetadataIdentifier, String urlListStr) {
this.storeMetadata(subscriberMetadataIdentifier, urlListStr, false);
}
@Override
protected String doGetSubscribedURLs(SubscriberMetadataIdentifier subscriberMetadataIdentifier) {
return this.getMetadata(subscriberMetadataIdentifier);
}
@Override
public String getServiceDefinition(MetadataIdentifier metadataIdentifier) {
return this.getMetadata(metadataIdentifier);
}
private void storeMetadata(BaseMetadataIdentifier metadataIdentifier, String v, boolean ephemeral) {
if (pool != null) {
storeMetadataStandalone(metadataIdentifier, v, ephemeral);
} else {
storeMetadataInCluster(metadataIdentifier, v, ephemeral);
}
}
private void storeMetadataInCluster(BaseMetadataIdentifier metadataIdentifier, String v, boolean ephemeral) {
try (JedisCluster jedisCluster =
new JedisCluster(jedisClusterNodes, timeout, timeout, 2, password, new GenericObjectPoolConfig<>())) {
if (ephemeral) {
jedisCluster.set(metadataIdentifier.getIdentifierKey() + META_DATA_STORE_TAG, v, jedisParams);
} else {
jedisCluster.set(metadataIdentifier.getIdentifierKey() + META_DATA_STORE_TAG, v);
}
} catch (Throwable e) {
String msg =
"Failed to put " + metadataIdentifier + " to redis cluster " + v + ", cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
private void storeMetadataStandalone(BaseMetadataIdentifier metadataIdentifier, String v, boolean ephemeral) {
try (Jedis jedis = pool.getResource()) {
if (ephemeral) {
jedis.set(metadataIdentifier.getUniqueKey(KeyTypeEnum.UNIQUE_KEY), v, jedisParams);
} else {
jedis.set(metadataIdentifier.getUniqueKey(KeyTypeEnum.UNIQUE_KEY), v);
}
} catch (Throwable e) {
String msg = "Failed to put " + metadataIdentifier + " to redis " + v + ", cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
private void deleteMetadata(BaseMetadataIdentifier metadataIdentifier) {
if (pool != null) {
deleteMetadataStandalone(metadataIdentifier);
} else {
deleteMetadataInCluster(metadataIdentifier);
}
}
private void deleteMetadataInCluster(BaseMetadataIdentifier metadataIdentifier) {
try (JedisCluster jedisCluster =
new JedisCluster(jedisClusterNodes, timeout, timeout, 2, password, new GenericObjectPoolConfig<>())) {
jedisCluster.del(metadataIdentifier.getIdentifierKey() + META_DATA_STORE_TAG);
} catch (Throwable e) {
String msg = "Failed to delete " + metadataIdentifier + " from redis cluster , cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
private void deleteMetadataStandalone(BaseMetadataIdentifier metadataIdentifier) {
try (Jedis jedis = pool.getResource()) {
jedis.del(metadataIdentifier.getUniqueKey(KeyTypeEnum.UNIQUE_KEY));
} catch (Throwable e) {
String msg = "Failed to delete " + metadataIdentifier + " from redis , cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
private String getMetadata(BaseMetadataIdentifier metadataIdentifier) {
if (pool != null) {
return getMetadataStandalone(metadataIdentifier);
} else {
return getMetadataInCluster(metadataIdentifier);
}
}
private String getMetadataInCluster(BaseMetadataIdentifier metadataIdentifier) {
try (JedisCluster jedisCluster =
new JedisCluster(jedisClusterNodes, timeout, timeout, 2, password, new GenericObjectPoolConfig<>())) {
return jedisCluster.get(metadataIdentifier.getIdentifierKey() + META_DATA_STORE_TAG);
} catch (Throwable e) {
String msg = "Failed to get " + metadataIdentifier + " from redis cluster , cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
private String getMetadataStandalone(BaseMetadataIdentifier metadataIdentifier) {
try (Jedis jedis = pool.getResource()) {
return jedis.get(metadataIdentifier.getUniqueKey(KeyTypeEnum.UNIQUE_KEY));
} catch (Throwable e) {
String msg = "Failed to get " + metadataIdentifier + " from redis , cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
/**
* Store class and application names using Redis hashes
* key: default 'dubbo:mapping'
* field: class (serviceInterface)
* value: application_names
* @param serviceInterface field(class)
* @param defaultMappingGroup {@link ServiceNameMapping#DEFAULT_MAPPING_GROUP}
* @param newConfigContent new application_names
* @param ticket previous application_names
* @return
*/
@Override
public boolean registerServiceAppMapping(
String serviceInterface, String defaultMappingGroup, String newConfigContent, Object ticket) {
try {
if (null != ticket && !(ticket instanceof String)) {
throw new IllegalArgumentException("redis publishConfigCas requires stat type ticket");
}
String pathKey = buildMappingKey(defaultMappingGroup);
return storeMapping(pathKey, serviceInterface, newConfigContent, (String) ticket);
} catch (Exception e) {
logger.warn(TRANSPORT_FAILED_RESPONSE, "", "", "redis publishConfigCas failed.", e);
return false;
}
}
private boolean storeMapping(String key, String field, String value, String ticket) {
if (pool != null) {
return storeMappingStandalone(key, field, value, ticket);
} else {
return storeMappingInCluster(key, field, value, ticket);
}
}
/**
* use 'watch' to implement cas.
* Find information about slot distribution by key.
*/
private boolean storeMappingInCluster(String key, String field, String value, String ticket) {
try (JedisCluster jedisCluster =
new JedisCluster(jedisClusterNodes, timeout, timeout, 2, password, new GenericObjectPoolConfig<>())) {
Jedis jedis = new Jedis(jedisCluster.getConnectionFromSlot(JedisClusterCRC16.getSlot(key)));
jedis.watch(key);
String oldValue = jedis.hget(key, field);
if (null == oldValue || null == ticket || oldValue.equals(ticket)) {
Transaction transaction = jedis.multi();
transaction.hset(key, field, value);
List<Object> result = transaction.exec();
if (null != result) {
jedisCluster.publish(buildPubSubKey(), field);
return true;
}
} else {
jedis.unwatch();
}
jedis.close();
} catch (Throwable e) {
String msg = "Failed to put " + key + ":" + field + " to redis " + value + ", cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
return false;
}
/**
* use 'watch' to implement cas.
* Find information about slot distribution by key.
*/
private boolean storeMappingStandalone(String key, String field, String value, String ticket) {
try (Jedis jedis = pool.getResource()) {
jedis.watch(key);
String oldValue = jedis.hget(key, field);
if (null == oldValue || null == ticket || oldValue.equals(ticket)) {
Transaction transaction = jedis.multi();
transaction.hset(key, field, value);
List<Object> result = transaction.exec();
if (null != result) {
jedis.publish(buildPubSubKey(), field);
return true;
}
}
jedis.unwatch();
} catch (Throwable e) {
String msg = "Failed to put " + key + ":" + field + " to redis " + value + ", cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
return false;
}
/**
* build mapping key
* @param defaultMappingGroup {@link ServiceNameMapping#DEFAULT_MAPPING_GROUP}
* @return
*/
private String buildMappingKey(String defaultMappingGroup) {
return this.root + GROUP_CHAR_SEPARATOR + defaultMappingGroup;
}
/**
* build pub/sub key
*/
private String buildPubSubKey() {
return buildMappingKey(DEFAULT_MAPPING_GROUP) + GROUP_CHAR_SEPARATOR + QUEUES_KEY;
}
/**
* get content and use content to complete cas
* @param serviceKey class
* @param group {@link ServiceNameMapping#DEFAULT_MAPPING_GROUP}
*/
@Override
public ConfigItem getConfigItem(String serviceKey, String group) {
String key = buildMappingKey(group);
String content = getMappingData(key, serviceKey);
return new ConfigItem(content, content);
}
/**
* get current application_names
*/
private String getMappingData(String key, String field) {
if (pool != null) {
return getMappingDataStandalone(key, field);
} else {
return getMappingDataInCluster(key, field);
}
}
private String getMappingDataInCluster(String key, String field) {
try (JedisCluster jedisCluster =
new JedisCluster(jedisClusterNodes, timeout, timeout, 2, password, new GenericObjectPoolConfig<>())) {
return jedisCluster.hget(key, field);
} catch (Throwable e) {
String msg = "Failed to get " + key + ":" + field + " from redis cluster , cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
private String getMappingDataStandalone(String key, String field) {
try (Jedis jedis = pool.getResource()) {
return jedis.hget(key, field);
} catch (Throwable e) {
String msg = "Failed to get " + key + ":" + field + " from redis , cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
/**
* remove listener. If have no listener,thread will dead
*/
@Override
public void removeServiceAppMappingListener(String serviceKey, MappingListener listener) {
MappingDataListener mappingDataListener = mappingDataListenerMap.get(buildPubSubKey());
if (null != mappingDataListener) {
NotifySub notifySub = mappingDataListener.getNotifySub();
notifySub.removeListener(serviceKey, listener);
if (notifySub.isEmpty()) {
mappingDataListener.shutdown();
}
}
}
/**
* Start a thread and subscribe to {@link this#buildPubSubKey()}.
* Notify {@link MappingListener} if there is a change in the 'application_names' message.
*/
@Override
public Set<String> getServiceAppMapping(String serviceKey, MappingListener listener, URL url) {
MappingDataListener mappingDataListener =
ConcurrentHashMapUtils.computeIfAbsent(mappingDataListenerMap, buildPubSubKey(), k -> {
MappingDataListener dataListener = new MappingDataListener(buildPubSubKey());
dataListener.start();
return dataListener;
});
mappingDataListener.getNotifySub().addListener(serviceKey, listener);
return this.getServiceAppMapping(serviceKey, url);
}
@Override
public Set<String> getServiceAppMapping(String serviceKey, URL url) {
String key = buildMappingKey(DEFAULT_MAPPING_GROUP);
return getAppNames(getMappingData(key, serviceKey));
}
@Override
public MetadataInfo getAppMetadata(SubscriberMetadataIdentifier identifier, Map<String, String> instanceMetadata) {
String content = this.getMetadata(identifier);
return JsonUtils.toJavaObject(content, MetadataInfo.class);
}
@Override
public void publishAppMetadata(SubscriberMetadataIdentifier identifier, MetadataInfo metadataInfo) {
this.storeMetadata(identifier, metadataInfo.getContent(), false);
}
@Override
public void unPublishAppMetadata(SubscriberMetadataIdentifier identifier, MetadataInfo metadataInfo) {
this.deleteMetadata(identifier);
}
// for test
public MappingDataListener getMappingDataListener() {
return mappingDataListenerMap.get(buildPubSubKey());
}
/**
* Listen for changes in the 'application_names' message and notify the listener.
*/
class NotifySub extends JedisPubSub {
private final Map<String, Set<MappingListener>> listeners = new ConcurrentHashMap<>();
public void addListener(String key, MappingListener listener) {
Set<MappingListener> listenerSet = listeners.computeIfAbsent(key, k -> new ConcurrentHashSet<>());
listenerSet.add(listener);
}
public void removeListener(String serviceKey, MappingListener listener) {
Set<MappingListener> listenerSet = this.listeners.get(serviceKey);
if (listenerSet != null) {
listenerSet.remove(listener);
if (listenerSet.isEmpty()) {
this.listeners.remove(serviceKey);
}
}
}
public Boolean isEmpty() {
return this.listeners.isEmpty();
}
@Override
public void onMessage(String key, String msg) {
logger.info("sub from redis:" + key + " message:" + msg);
String applicationNames = getMappingData(buildMappingKey(DEFAULT_MAPPING_GROUP), msg);
MappingChangedEvent mappingChangedEvent = new MappingChangedEvent(msg, getAppNames(applicationNames));
if (!CollectionUtils.isEmpty(listeners.get(msg))) {
for (MappingListener mappingListener : listeners.get(msg)) {
mappingListener.onEvent(mappingChangedEvent);
}
}
}
@Override
public void onPMessage(String pattern, String key, String msg) {
onMessage(key, msg);
}
@Override
public void onPSubscribe(String pattern, int subscribedChannels) {
super.onPSubscribe(pattern, subscribedChannels);
}
}
/**
* Subscribe application names change message.
*/
class MappingDataListener extends Thread {
private String path;
private final NotifySub notifySub = new NotifySub();
// for test
protected volatile boolean running = true;
public MappingDataListener(String path) {
this.path = path;
}
public NotifySub getNotifySub() {
return notifySub;
}
@Override
public void run() {
while (running) {
if (pool != null) {
try (Jedis jedis = pool.getResource()) {
jedis.subscribe(notifySub, path);
} catch (Throwable e) {
String msg = "Failed to subscribe " + path + ", cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
} else {
try (JedisCluster jedisCluster = new JedisCluster(
jedisClusterNodes, timeout, timeout, 2, password, new GenericObjectPoolConfig<>())) {
jedisCluster.subscribe(notifySub, path);
} catch (Throwable e) {
String msg = "Failed to subscribe " + path + ", cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
throw new RpcException(msg, e);
}
}
}
}
public void shutdown() {
try {
running = false;
notifySub.unsubscribe(path);
} catch (Throwable e) {
String msg = "Failed to unsubscribe " + path + ", cause: " + e.getMessage();
logger.error(TRANSPORT_FAILED_RESPONSE, "", "", msg, e);
}
}
}
}

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@@ -2,15 +2,10 @@
dubbo:
application:
logger: slf4j
# 元数据中心 local 本地 remote 远程 这里使用远程便于其他服务获取
metadataType: remote
# 元数据中心 local 本地 (一般情况使用 local 即可 服务互相从本地文件获取)
metadataType: local
# 可选值 interface、instance、all默认是 all即接口级地址、应用级地址都注册
register-mode: instance
service-discovery:
# FORCE_INTERFACE只消费接口级地址如无地址则报错单订阅 2.x 地址
# APPLICATION_FIRST智能决策接口级/应用级地址,双订阅
# FORCE_APPLICATION只消费应用级地址如无地址则报错单订阅 3.x 地址
migration: FORCE_APPLICATION
# 注册中心配置
registry:
address: nacos://${spring.cloud.nacos.server-addr}
@@ -19,15 +14,10 @@ dubbo:
password: ${spring.cloud.nacos.password}
parameters:
namespace: ${spring.cloud.nacos.discovery.namespace:public}
metadata-report:
address: redis://${spring.data.redis.host:localhost}:${spring.data.redis.port:6379}
group: DUBBO_GROUP
username: ${spring.data.redis.username:default}
password: ${spring.data.redis.password}
parameters:
namespace: ${spring.cloud.nacos.config.namespace:public}
database: ${spring.data.redis.database:0}
timeout: ${spring.data.redis.timeout:3000}
# 远程元数据中心 true 开启 false 关闭 (一般情况不用开启)
use-as-metadata-center: false
# 远程配置中心 true 开启 false 关闭 (一般情况不用开启)
use-as-config-center: false
# 消费者相关配置
consumer:
# 结果缓存(LRU算法)