Examples with DuplicateRaftGroupException com.alibaba.nacos.core.distributed.raft.exception.DuplicateRaftGroupException used on opensource projects

Example 1 with DuplicateRaftGroupException

use of com.alibaba.nacos.core.distributed.raft.exception.DuplicateRaftGroupException in project nacos by alibaba.

the class JRaftServer method createMultiRaftGroup.

synchronized void createMultiRaftGroup(Collection<RequestProcessor4CP> processors) {
    // There is no reason why the LogProcessor cannot be processed because of the synchronization
    if (!this.isStarted) {
        this.processors.addAll(processors);
        return;
    }
    final String parentPath = Paths.get(EnvUtil.getNacosHome(), "data/protocol/raft").toString();
    for (RequestProcessor4CP processor : processors) {
        final String groupName = processor.group();
        if (multiRaftGroup.containsKey(groupName)) {
            throw new DuplicateRaftGroupException(groupName);
        }
        // Ensure that each Raft Group has its own configuration and NodeOptions
        Configuration configuration = conf.copy();
        NodeOptions copy = nodeOptions.copy();
        JRaftUtils.initDirectory(parentPath, groupName, copy);
        // Here, the LogProcessor is passed into StateMachine, and when the StateMachine
        // triggers onApply, the onApply of the LogProcessor is actually called
        NacosStateMachine machine = new NacosStateMachine(this, processor);
        copy.setFsm(machine);
        copy.setInitialConf(configuration);
        // Set snapshot interval, default 1800 seconds
        int doSnapshotInterval = ConvertUtils.toInt(raftConfig.getVal(RaftSysConstants.RAFT_SNAPSHOT_INTERVAL_SECS), RaftSysConstants.DEFAULT_RAFT_SNAPSHOT_INTERVAL_SECS);
        // If the business module does not implement a snapshot processor, cancel the snapshot
        doSnapshotInterval = CollectionUtils.isEmpty(processor.loadSnapshotOperate()) ? 0 : doSnapshotInterval;
        copy.setSnapshotIntervalSecs(doSnapshotInterval);
        Loggers.RAFT.info("create raft group : {}", groupName);
        RaftGroupService raftGroupService = new RaftGroupService(groupName, localPeerId, copy, rpcServer, true);
        // Because BaseRpcServer has been started before, it is not allowed to start again here
        Node node = raftGroupService.start(false);
        machine.setNode(node);
        RouteTable.getInstance().updateConfiguration(groupName, configuration);
        RaftExecutor.executeByCommon(() -> registerSelfToCluster(groupName, localPeerId, configuration));
        // Turn on the leader auto refresh for this group
        Random random = new Random();
        long period = nodeOptions.getElectionTimeoutMs() + random.nextInt(5 * 1000);
        RaftExecutor.scheduleRaftMemberRefreshJob(() -> refreshRouteTable(groupName), nodeOptions.getElectionTimeoutMs(), period, TimeUnit.MILLISECONDS);
        multiRaftGroup.put(groupName, new RaftGroupTuple(node, processor, raftGroupService, machine));
    }
}