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RocketMq Topic权限变更

简介: RocketMq Topic权限变更

系列


开篇

  • 这个系列主要用以分析mqadmin常见的比较核心的几个命令,主要包括订阅分组和topic的创建和删除、Topic的权限变更。
  • 这篇文章主要是用来分析Topic的权限变更。


Topic权限变更

  • Topic的权限变更流程和Topic的创建流程是一致的。
  • Topic的权限变更主要是变更broker的topic的配置信息并同步更新namesrv的Topic的Queue信息。


updateTopicPerm

usage: mqadmin updateTopicPerm [-b <arg>] [-c <arg>] [-h] [-n <arg>] -p <arg> -t <arg>
 -b,--brokerAddr <arg>    create topic to which broker
 -c,--clusterName <arg>   create topic to which cluster
 -h,--help                Print help
 -n,--namesrvAddr <arg>   Name server address list, eg: 192.168.0.1:9876;192.168.0.2:9876
 -p,--perm <arg>          set topic's permission(2|4|6), intro[2:W; 4:R; 6:RW]
 -t,--topic <arg>         topic name
  • --topic指定待变更的topic信息
  • --brokerAddr指定变更某个broker的上topic的权限信息。
  • --clusterName指定变更某个rocketmq集群的topic的权限信息。
  • --perm 指定变更的权限信息。


UpdateTopicPermSubCommand

public class UpdateTopicPermSubCommand implements SubCommand {

    @Override
    public void execute(final CommandLine commandLine, final Options options,
        RPCHook rpcHook) throws SubCommandException {

        DefaultMQAdminExt defaultMQAdminExt = new DefaultMQAdminExt(rpcHook);
        defaultMQAdminExt.setInstanceName(Long.toString(System.currentTimeMillis()));

        try {
            defaultMQAdminExt.start();

            TopicConfig topicConfig = new TopicConfig();
            String topic;
            if (commandLine.hasOption('t')) {
                topic = commandLine.getOptionValue('t').trim();
            } else {
                System.out.printf("topic paramter value must be need.%n");
                return;
            }

            // 1、获取该topic对应的TopicRouteData数据
            TopicRouteData topicRouteData = defaultMQAdminExt.examineTopicRouteInfo(topic);
            assert topicRouteData != null;
            // 2、解析Topic对应的QueueData信息
            List<QueueData> queueDatas = topicRouteData.getQueueDatas();
            assert queueDatas != null && queueDatas.size() > 0;
            // 3、生成topicConfig
            QueueData queueData = queueDatas.get(0);
            topicConfig.setTopicName(topic);
            topicConfig.setWriteQueueNums(queueData.getWriteQueueNums());
            topicConfig.setReadQueueNums(queueData.getReadQueueNums());
            topicConfig.setTopicSysFlag(queueData.getTopicSynFlag());

            // 4、更改topicConfig的权限信息
            int perm;
            if (commandLine.hasOption('p')) {
                perm = Integer.parseInt(commandLine.getOptionValue('p').trim());
            } else {
                System.out.printf("perm paramter value must be need.%n");
                return;
            }

            topicConfig.setPerm(perm);

            // 5、处理通过-b 指定broker地址的逻辑
            if (commandLine.hasOption('b')) {

                String brokerAddr = commandLine.getOptionValue('b').trim();                
                List<BrokerData> brokerDatas = topicRouteData.getBrokerDatas();
                String brokerName = null;
                // 遍历topic对应的brokerData信息,找到brokerName相同的brokerIp地址
                for (BrokerData data : brokerDatas) {
                    HashMap<Long, String> brokerAddrs = data.getBrokerAddrs();
                    if (brokerAddrs == null || brokerAddrs.size() == 0) {
                        continue;
                    }
                    // 找到broker地址相等的对应的brokerName
                    for (Map.Entry<Long, String> entry : brokerAddrs.entrySet()) {
                        if (brokerAddr.equals(entry.getValue()) && MixAll.MASTER_ID == entry.getKey()) {
                            brokerName = data.getBrokerName();
                            break;
                        }
                    }
                    if (brokerName != null) {
                        break;
                    }
                }

                if (brokerName != null) {
                    List<QueueData> queueDataList = topicRouteData.getQueueDatas();
                    assert queueDataList != null && queueDataList.size() > 0;
                    int oldPerm = 0;
                    // 校验新旧权限是否相等
                    for (QueueData data : queueDataList) {
                        if (brokerName.equals(data.getBrokerName())) {
                            oldPerm = data.getPerm();
                            if (perm == oldPerm) {
                                System.out.printf("new perm equals to the old one!%n");
                                return;
                            }
                            break;
                        }
                    }
                    // 更新指定broker地址的topic的配置信息
                    defaultMQAdminExt.createAndUpdateTopicConfig(brokerAddr, topicConfig);
                    System.out.printf("update topic perm from %s to %s in %s success.%n", oldPerm, perm, brokerAddr);
                    System.out.printf("%s.%n", topicConfig);
                    return;
                } else {
                    System.out.printf("updateTopicPerm error broker not exit or broker is not master!.%n");
                    return;
                }
            // 6、处理通过-c 指定cluster集群的逻辑
            } else if (commandLine.hasOption('c')) {

                String clusterName = commandLine.getOptionValue('c').trim();
                // 获取mq集群的broker地址信息
                Set<String> masterSet =
                    CommandUtil.fetchMasterAddrByClusterName(defaultMQAdminExt, clusterName);
                // 往所有的broker发送topic对应的配置变更信息
                for (String addr : masterSet) {
                    defaultMQAdminExt.createAndUpdateTopicConfig(addr, topicConfig);
                    System.out.printf("update topic perm from %s to %s in %s success.%n", queueData.getPerm(), perm, addr);
                }
                return;
            }
            ServerUtil.printCommandLineHelp("mqadmin " + this.commandName(), options);
        } catch (Exception e) {
            throw new SubCommandException(this.getClass().getSimpleName() + " command failed", e);
        } finally {
            defaultMQAdminExt.shutdown();
        }
    }
}
  • 1、UpdateTopicPermSubCommand负责执行Topic的权限变更。
  • 2、变更指定broker的Topic的权限信息按照先遍历BrokerData匹配brokerIp找到brokerName,再根据brokerName匹配新旧权限是否一致,针对不一致的情况再向指定ip的broker发送新权限配置变更。
  • 3、变更集群的Topic的权限信息按照先获取集群的所有的broker的ip地址,依次往broker发送新的topic的权限配置信息。


MQClientAPIImpl

public class MQClientAPIImpl {

    public void createTopic(final String addr, final String defaultTopic, final TopicConfig topicConfig,
        final long timeoutMillis)
        throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
        CreateTopicRequestHeader requestHeader = new CreateTopicRequestHeader();
        requestHeader.setTopic(topicConfig.getTopicName());
        requestHeader.setDefaultTopic(defaultTopic);
        requestHeader.setReadQueueNums(topicConfig.getReadQueueNums());
        requestHeader.setWriteQueueNums(topicConfig.getWriteQueueNums());
        requestHeader.setPerm(topicConfig.getPerm());
        requestHeader.setTopicFilterType(topicConfig.getTopicFilterType().name());
        requestHeader.setTopicSysFlag(topicConfig.getTopicSysFlag());
        requestHeader.setOrder(topicConfig.isOrder());

        RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.UPDATE_AND_CREATE_TOPIC, requestHeader);

        RemotingCommand response = this.remotingClient.invokeSync(MixAll.brokerVIPChannel(this.clientConfig.isVipChannelEnabled(), addr),
            request, timeoutMillis);
        assert response != null;
        switch (response.getCode()) {
            case ResponseCode.SUCCESS: {
                return;
            }
            default:
                break;
        }

        throw new MQClientException(response.getCode(), response.getRemark());
    }
}
  • 变更Topic的权限的requestCode的值为UPDATE_AND_CREATE_TOPIC。
  • 变更Topic的权限走的和创建Topic的走的是一个流程。


AdminBrokerProcessor

public class AdminBrokerProcessor implements NettyRequestProcessor {

    private synchronized RemotingCommand updateAndCreateTopic(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        final CreateTopicRequestHeader requestHeader =
            (CreateTopicRequestHeader) request.decodeCommandCustomHeader(CreateTopicRequestHeader.class);
        log.info("updateAndCreateTopic called by {}", RemotingHelper.parseChannelRemoteAddr(ctx.channel()));

        if (requestHeader.getTopic().equals(this.brokerController.getBrokerConfig().getBrokerClusterName())) {
            String errorMsg = "the topic[" + requestHeader.getTopic() + "] is conflict with system reserved words.";
            log.warn(errorMsg);
            response.setCode(ResponseCode.SYSTEM_ERROR);
            response.setRemark(errorMsg);
            return response;
        }

        try {
            response.setCode(ResponseCode.SUCCESS);
            response.setOpaque(request.getOpaque());
            response.markResponseType();
            response.setRemark(null);
            ctx.writeAndFlush(response);
        } catch (Exception e) {
            log.error("Failed to produce a proper response", e);
        }

        TopicConfig topicConfig = new TopicConfig(requestHeader.getTopic());
        topicConfig.setReadQueueNums(requestHeader.getReadQueueNums());
        topicConfig.setWriteQueueNums(requestHeader.getWriteQueueNums());
        topicConfig.setTopicFilterType(requestHeader.getTopicFilterTypeEnum());
        topicConfig.setPerm(requestHeader.getPerm());
        topicConfig.setTopicSysFlag(requestHeader.getTopicSysFlag() == null ? 0 : requestHeader.getTopicSysFlag());

        this.brokerController.getTopicConfigManager().updateTopicConfig(topicConfig);

        this.brokerController.registerIncrementBrokerData(topicConfig, this.brokerController.getTopicConfigManager().getDataVersion());

        return null;
    }
}
  • 通过TopicConfigManager#updateTopicConfig来保存Topic的配置信息到broker。


TopicConfigManager

public class TopicConfigManager extends ConfigManager {

    private static final long LOCK_TIMEOUT_MILLIS = 3000;
    private transient final Lock lockTopicConfigTable = new ReentrantLock();

    private final ConcurrentMap<String, TopicConfig> topicConfigTable =
        new ConcurrentHashMap<String, TopicConfig>(1024);
    private final DataVersion dataVersion = new DataVersion();
    private final Set<String> systemTopicList = new HashSet<String>();
    private transient BrokerController brokerController;

    public void updateTopicConfig(final TopicConfig topicConfig) {
        TopicConfig old = this.topicConfigTable.put(topicConfig.getTopicName(), topicConfig);
        if (old != null) {
            log.info("update topic config, old:[{}] new:[{}]", old, topicConfig);
        } else {
            log.info("create new topic [{}]", topicConfig);
        }

        this.dataVersion.nextVersion();

        this.persist();
    }
}
  • updateTopicConfig负责保存broker端的Topic的对应的配置信息。


BrokerController

public class BrokerController {

    public synchronized void registerIncrementBrokerData(TopicConfig topicConfig, DataVersion dataVersion) {

        TopicConfig registerTopicConfig = topicConfig;
        // 如果broker本身的存在不可读和不可写的权限,那么就以broker的读写权限为准
        if (!PermName.isWriteable(this.getBrokerConfig().getBrokerPermission())
            || !PermName.isReadable(this.getBrokerConfig().getBrokerPermission())) {
            registerTopicConfig =
                new TopicConfig(topicConfig.getTopicName(), topicConfig.getReadQueueNums(), topicConfig.getWriteQueueNums(),
                    this.brokerConfig.getBrokerPermission());
        }

        ConcurrentMap<String, TopicConfig> topicConfigTable = new ConcurrentHashMap<String, TopicConfig>();
        topicConfigTable.put(topicConfig.getTopicName(), registerTopicConfig);
        TopicConfigSerializeWrapper topicConfigSerializeWrapper = new TopicConfigSerializeWrapper();
        topicConfigSerializeWrapper.setDataVersion(dataVersion);
        topicConfigSerializeWrapper.setTopicConfigTable(topicConfigTable);
        // 将topic信息注册到namesrv的逻辑
        doRegisterBrokerAll(true, false, topicConfigSerializeWrapper);
    }


    private void doRegisterBrokerAll(boolean checkOrderConfig, boolean oneway,
        TopicConfigSerializeWrapper topicConfigWrapper) {
        // 向所有的namesrv发送topic的注册信息
        List<RegisterBrokerResult> registerBrokerResultList = this.brokerOuterAPI.registerBrokerAll(
            this.brokerConfig.getBrokerClusterName(),
            this.getBrokerAddr(),
            this.brokerConfig.getBrokerName(),
            this.brokerConfig.getBrokerId(),
            this.getHAServerAddr(),
            topicConfigWrapper,
            this.filterServerManager.buildNewFilterServerList(),
            oneway,
            this.brokerConfig.getRegisterBrokerTimeoutMills(),
            this.brokerConfig.isCompressedRegister());

        if (registerBrokerResultList.size() > 0) {
            RegisterBrokerResult registerBrokerResult = registerBrokerResultList.get(0);
            if (registerBrokerResult != null) {
                if (this.updateMasterHAServerAddrPeriodically && registerBrokerResult.getHaServerAddr() != null) {
                    this.messageStore.updateHaMasterAddress(registerBrokerResult.getHaServerAddr());
                }

                this.slaveSynchronize.setMasterAddr(registerBrokerResult.getMasterAddr());

                if (checkOrderConfig) {
                    this.getTopicConfigManager().updateOrderTopicConfig(registerBrokerResult.getKvTable());
                }
            }
        }
    }
}
  • registerIncrementBrokerData首先会检查broker本身的读写权限重新生成新的topicConfigSerializeWrapper。
  • 通过brokerOuterAPI#registerBrokerAll向namesrv注册最新的topic信息。


BrokerOuterAPI

public class BrokerOuterAPI {

    private RegisterBrokerResult registerBroker(
        final String namesrvAddr,
        final boolean oneway,
        final int timeoutMills,
        final RegisterBrokerRequestHeader requestHeader,
        final byte[] body
    ) throws RemotingCommandException, MQBrokerException, RemotingConnectException, RemotingSendRequestException, RemotingTimeoutException,
        InterruptedException {

        RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.REGISTER_BROKER, requestHeader);
        request.setBody(body);
        // oneway=false,这个分支不会执行
        if (oneway) {
            try {
                this.remotingClient.invokeOneway(namesrvAddr, request, timeoutMills);
            } catch (RemotingTooMuchRequestException e) {
                // Ignore
            }
            return null;
        }

        // 向namesrv上报
        RemotingCommand response = this.remotingClient.invokeSync(namesrvAddr, request, timeoutMills);
        // 处理上报结果并同步主从
        assert response != null;
        switch (response.getCode()) {
            case ResponseCode.SUCCESS: {
                RegisterBrokerResponseHeader responseHeader =
                    (RegisterBrokerResponseHeader) response.decodeCommandCustomHeader(RegisterBrokerResponseHeader.class);
                RegisterBrokerResult result = new RegisterBrokerResult();
                result.setMasterAddr(responseHeader.getMasterAddr());
                result.setHaServerAddr(responseHeader.getHaServerAddr());
                if (response.getBody() != null) {
                    result.setKvTable(KVTable.decode(response.getBody(), KVTable.class));
                }
                return result;
            }
            default:
                break;
        }

        throw new MQBrokerException(response.getCode(), response.getRemark());
    }
  • 向namesrv注册topic的RequestCode为REGISTER_BROKER。
  • broker向namesrv发起topic注册。


DefaultRequestProcessor

public class DefaultRequestProcessor implements NettyRequestProcessor {

    public RemotingCommand registerBrokerWithFilterServer(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {

        final RemotingCommand response = RemotingCommand.createResponseCommand(RegisterBrokerResponseHeader.class);
        final RegisterBrokerResponseHeader responseHeader = (RegisterBrokerResponseHeader) response.readCustomHeader();
        final RegisterBrokerRequestHeader requestHeader =
            (RegisterBrokerRequestHeader) request.decodeCommandCustomHeader(RegisterBrokerRequestHeader.class);

        if (!checksum(ctx, request, requestHeader)) {
            response.setCode(ResponseCode.SYSTEM_ERROR);
            response.setRemark("crc32 not match");
            return response;
        }

        RegisterBrokerBody registerBrokerBody = new RegisterBrokerBody();

        if (request.getBody() != null) {
            try {
                registerBrokerBody = RegisterBrokerBody.decode(request.getBody(), requestHeader.isCompressed());
            } catch (Exception e) {
                throw new RemotingCommandException("Failed to decode RegisterBrokerBody", e);
            }
        } else {
            registerBrokerBody.getTopicConfigSerializeWrapper().getDataVersion().setCounter(new AtomicLong(0));
            registerBrokerBody.getTopicConfigSerializeWrapper().getDataVersion().setTimestamp(0);
        }
        // namesrv同时注册broker信息和TopicConfig信息
        RegisterBrokerResult result = this.namesrvController.getRouteInfoManager().registerBroker(
            requestHeader.getClusterName(),
            requestHeader.getBrokerAddr(),
            requestHeader.getBrokerName(),
            requestHeader.getBrokerId(),
            requestHeader.getHaServerAddr(),
            registerBrokerBody.getTopicConfigSerializeWrapper(),
            registerBrokerBody.getFilterServerList(),
            ctx.channel());

        responseHeader.setHaServerAddr(result.getHaServerAddr());
        responseHeader.setMasterAddr(result.getMasterAddr());

        byte[] jsonValue = this.namesrvController.getKvConfigManager().getKVListByNamespace(NamesrvUtil.NAMESPACE_ORDER_TOPIC_CONFIG);
        response.setBody(jsonValue);

        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }
}
  • getRouteInfoManager().registerBroker()负责向namesrv注册broker信息。


RouteInfoManager

public class RouteInfoManager {

    private final static long BROKER_CHANNEL_EXPIRED_TIME = 1000 * 60 * 2;
    private final ReadWriteLock lock = new ReentrantReadWriteLock();
    private final HashMap<String/* topic */, List<QueueData>> topicQueueTable;
    private final HashMap<String/* brokerName */, BrokerData> brokerAddrTable;
    private final HashMap<String/* clusterName */, Set<String/* brokerName */>> clusterAddrTable;
    private final HashMap<String/* brokerAddr */, BrokerLiveInfo> brokerLiveTable;
    private final HashMap<String/* brokerAddr */, List<String>/* Filter Server */> filterServerTable;

    public RouteInfoManager() {
        this.topicQueueTable = new HashMap<String, List<QueueData>>(1024);
        this.brokerAddrTable = new HashMap<String, BrokerData>(128);
        this.clusterAddrTable = new HashMap<String, Set<String>>(32);
        this.brokerLiveTable = new HashMap<String, BrokerLiveInfo>(256);
        this.filterServerTable = new HashMap<String, List<String>>(256);
    }

    public RegisterBrokerResult registerBroker(
        final String clusterName,
        final String brokerAddr,
        final String brokerName,
        final long brokerId,
        final String haServerAddr,
        final TopicConfigSerializeWrapper topicConfigWrapper,
        final List<String> filterServerList,
        final Channel channel) {
        RegisterBrokerResult result = new RegisterBrokerResult();

        try {
            try {
                this.lock.writeLock().lockInterruptibly();

                Set<String> brokerNames = this.clusterAddrTable.get(clusterName);
                if (null == brokerNames) {
                    brokerNames = new HashSet<String>();
                    this.clusterAddrTable.put(clusterName, brokerNames);
                }
                brokerNames.add(brokerName);

                boolean registerFirst = false;

                BrokerData brokerData = this.brokerAddrTable.get(brokerName);
                if (null == brokerData) {
                    registerFirst = true;
                    brokerData = new BrokerData(clusterName, brokerName, new HashMap<Long, String>());
                    this.brokerAddrTable.put(brokerName, brokerData);
                }
                Map<Long, String> brokerAddrsMap = brokerData.getBrokerAddrs();
                //Switch slave to master: first remove <1, IP:PORT> in namesrv, then add <0, IP:PORT>
                //The same IP:PORT must only have one record in brokerAddrTable
                Iterator<Entry<Long, String>> it = brokerAddrsMap.entrySet().iterator();
                while (it.hasNext()) {
                    Entry<Long, String> item = it.next();
                    if (null != brokerAddr && brokerAddr.equals(item.getValue()) && brokerId != item.getKey()) {
                        it.remove();
                    }
                }

                String oldAddr = brokerData.getBrokerAddrs().put(brokerId, brokerAddr);
                registerFirst = registerFirst || (null == oldAddr);

                // 保存topicConfig的信息
                if (null != topicConfigWrapper
                    && MixAll.MASTER_ID == brokerId) {
                    if (this.isBrokerTopicConfigChanged(brokerAddr, topicConfigWrapper.getDataVersion())
                        || registerFirst) {
                        ConcurrentMap<String, TopicConfig> tcTable =
                            topicConfigWrapper.getTopicConfigTable();
                        if (tcTable != null) {
                            for (Map.Entry<String, TopicConfig> entry : tcTable.entrySet()) {
                                this.createAndUpdateQueueData(brokerName, entry.getValue());
                            }
                        }
                    }
                }

                BrokerLiveInfo prevBrokerLiveInfo = this.brokerLiveTable.put(brokerAddr,
                    new BrokerLiveInfo(
                        System.currentTimeMillis(),
                        topicConfigWrapper.getDataVersion(),
                        channel,
                        haServerAddr));
                if (null == prevBrokerLiveInfo) {
                    log.info("new broker registered, {} HAServer: {}", brokerAddr, haServerAddr);
                }

                if (filterServerList != null) {
                    if (filterServerList.isEmpty()) {
                        this.filterServerTable.remove(brokerAddr);
                    } else {
                        this.filterServerTable.put(brokerAddr, filterServerList);
                    }
                }

                if (MixAll.MASTER_ID != brokerId) {
                    String masterAddr = brokerData.getBrokerAddrs().get(MixAll.MASTER_ID);
                    if (masterAddr != null) {
                        BrokerLiveInfo brokerLiveInfo = this.brokerLiveTable.get(masterAddr);
                        if (brokerLiveInfo != null) {
                            result.setHaServerAddr(brokerLiveInfo.getHaServerAddr());
                            result.setMasterAddr(masterAddr);
                        }
                    }
                }
            } finally {
                this.lock.writeLock().unlock();
            }
        } catch (Exception e) {
            log.error("registerBroker Exception", e);
        }

        return result;
    }
}
  • RouteInfoManager是namesrv的核心数据管理中心,broker上报Topic的过程中会同时更新broker的保活信息等。
  • 核心的createAndUpdateQueueData负责注册topic配置信息。


createAndUpdateQueueData

public class RouteInfoManager {

    private void createAndUpdateQueueData(final String brokerName, final TopicConfig topicConfig) {

        QueueData queueData = new QueueData();
        queueData.setBrokerName(brokerName);
        queueData.setWriteQueueNums(topicConfig.getWriteQueueNums());
        queueData.setReadQueueNums(topicConfig.getReadQueueNums());
        queueData.setPerm(topicConfig.getPerm());
        queueData.setTopicSynFlag(topicConfig.getTopicSysFlag());

        List<QueueData> queueDataList = this.topicQueueTable.get(topicConfig.getTopicName());
        if (null == queueDataList) {
            queueDataList = new LinkedList<QueueData>();
            queueDataList.add(queueData);
            this.topicQueueTable.put(topicConfig.getTopicName(), queueDataList);
            log.info("new topic registered, {} {}", topicConfig.getTopicName(), queueData);
        } else {
            boolean addNewOne = true;

            Iterator<QueueData> it = queueDataList.iterator();
            while (it.hasNext()) {
                QueueData qd = it.next();
                if (qd.getBrokerName().equals(brokerName)) {
                    if (qd.equals(queueData)) {
                        addNewOne = false;
                    } else {
                        log.info("topic changed, {} OLD: {} NEW: {}", topicConfig.getTopicName(), qd,
                            queueData);
                        it.remove();
                    }
                }
            }

            if (addNewOne) {
                queueDataList.add(queueData);
            }
        }
    }
}
  • 负责创建QueueData并保存到topicQueueTable当中。
  • createAndUpdateQueueData会处理所有broker的上报,所以在处理QueueData过程中需要判断brokerName以处理对应的broker的QueueData。

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