mds_service.cpp

/*
 *  Copyright (c) 2021 NetEase Inc.
 *
 *  Licensed 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.
 */

/*
 * Project: curve
 * Created Date: 2021-05-19
 * Author: chenwei
 */

#include <vector>

#include "curvefs/src/mds/mds_service.h"

namespace curvefs {
namespace mds {
void MdsServiceImpl::CreateFs(::google::protobuf::RpcController* controller,
                              const ::curvefs::mds::CreateFsRequest* request,
                              ::curvefs::mds::CreateFsResponse* response,
                              ::google::protobuf::Closure* done) {
    brpc::ClosureGuard doneGuard(done);
    brpc::Controller* cntl = static_cast<brpc::Controller*>(controller);
    std::string fsName = request->fsname();
    uint64_t blockSize = request->blocksize();
    FSType type = request->fstype();
    bool enableSumInDir = request->enablesumindir();

    // set response statuscode default value is ok
    response->set_statuscode(FSStatusCode::OK);

    // create volume fs
    auto createVolumeFs =
        [&]() {
            if (!request->fsdetail().has_volume()) {
                response->set_statuscode(FSStatusCode::PARAM_ERROR);
                LOG(ERROR)
                    << "CreateFs request, type is volume, but has no volume"
                    << ", fsName = " << fsName;
                return;
            }
            const auto& volume = request->fsdetail().volume();
            LOG(INFO) << "CreateFs request, fsName = " << fsName
                      << ", blockSize = " << blockSize
                      << ", volume.volumeName = " << volume.volumename()
                      << ", enableSumInDir = " << enableSumInDir
                      << ", owner = " << request->owner()
                      << ", capacity = " << request->capacity();

            FSStatusCode status =
                fsManager_->CreateFs(request, response->mutable_fsinfo());

            if (status != FSStatusCode::OK) {
                response->clear_fsinfo();
                response->set_statuscode(status);
                LOG(ERROR) << "CreateFs fail, fsName = " << fsName
                           << ", blockSize = " << blockSize
                           << ", volume.volumeName = " << volume.volumename()
                           << ", enableSumInDir = " << enableSumInDir
                           << ", owner = " << request->owner()
                           << ", capacity = " << request->capacity()
                           << ", errCode = " << FSStatusCode_Name(status);
                return;
            }
        };

    // create s3 fs
    auto createS3Fs =
        [&]() {
            if (!request->fsdetail().has_s3info()) {
                response->set_statuscode(FSStatusCode::PARAM_ERROR);
                LOG(ERROR) << "CreateFs request, type is s3, but has no s3info"
                           << ", fsName = " << fsName;
                return;
            }
            const auto& s3Info = request->fsdetail().s3info();
            LOG(INFO) << "CreateFs request, fsName = " << fsName
                      << ", blockSize = " << blockSize
                      << ", s3Info.bucketname = " << s3Info.bucketname()
                      << ", enableSumInDir = " << enableSumInDir
                      << ", owner = " << request->owner()
                      << ", capacity = " << request->capacity();

            FSStatusCode status =
                fsManager_->CreateFs(request, response->mutable_fsinfo());

            if (status != FSStatusCode::OK) {
                response->clear_fsinfo();
                response->set_statuscode(status);
                LOG(ERROR) << "CreateFs fail, fsName = " << fsName
                           << ", blockSize = " << blockSize
                           << ", s3Info.bucketname = " << s3Info.bucketname()
                           << ", enableSumInDir = " << enableSumInDir
                           << ", owner = " << request->owner()
                           << ", capacity = " << request->capacity()
                           << ", errCode = " << FSStatusCode_Name(status);
                return;
            }
        };

    auto createHybridFs = [&]() {
        // not support now
        if (!request->fsdetail().has_volume()) {
            response->set_statuscode(FSStatusCode::PARAM_ERROR);
            LOG(ERROR) << "CreateFs request, type is hybrid, but has no volume"
                       << ", fsName = " << fsName;
            return;
        }
        if (!request->fsdetail().has_s3info()) {
            response->set_statuscode(FSStatusCode::PARAM_ERROR);
            LOG(ERROR) << "CreateFs request, type is hybrid, but has no s3info"
                       << ", fsName = " << fsName;
            return;
        }
        response->set_statuscode(FSStatusCode::UNKNOWN_ERROR);
    };

    switch (type) {
        case ::curvefs::common::FSType::TYPE_VOLUME:
            createVolumeFs();
            break;
        case ::curvefs::common::FSType::TYPE_S3:
            createS3Fs();
            break;
        case ::curvefs::common::FSType::TYPE_HYBRID:
            createHybridFs();
            break;
        default:
            response->set_statuscode(FSStatusCode::PARAM_ERROR);
            LOG(ERROR) << "CreateFs fail, fs type is invalid"
                       << ", fsName = " << fsName
                       << ", blockSize = " << blockSize << ", fsType = " << type
                       << ", errCode = "
                       << FSStatusCode_Name(FSStatusCode::PARAM_ERROR);
            break;
    }

    if (response->statuscode() != FSStatusCode::OK) {
        return;
    }
    LOG(INFO) << "CreateFs success, fsName = " << fsName
              << ", blockSize = " << blockSize
              << ", owner = " << request->owner()
              << ", capacity = " << request->capacity();
    return;
}

void MdsServiceImpl::MountFs(::google::protobuf::RpcController* controller,
                             const ::curvefs::mds::MountFsRequest* request,
                             ::curvefs::mds::MountFsResponse* response,
                             ::google::protobuf::Closure* done) {
    brpc::ClosureGuard doneGuard(done);
    brpc::Controller* cntl = static_cast<brpc::Controller*>(controller);
    std::string fsName = request->fsname();
    std::string mount = request->mountpoint();
    LOG(INFO) << "MountFs request, fsName = " << fsName
              << ", mountPoint = " << mount;
    FSStatusCode status =
        fsManager_->MountFs(fsName, mount, response->mutable_fsinfo());
    if (status != FSStatusCode::OK) {
        response->clear_fsinfo();
        response->set_statuscode(status);
        LOG(ERROR) << "MountFs fail, fsName = " << fsName
                   << ", mountPoint = " << mount
                   << ", errCode = " << FSStatusCode_Name(status);
        return;
    }

    response->set_statuscode(FSStatusCode::OK);
    LOG(INFO) << "MountFs success, fsName = " << fsName
              << ", mountPoint = " << mount
              << ", mps: " << response->mutable_fsinfo()->mountpoints_size();
    return;
}

void MdsServiceImpl::UmountFs(::google::protobuf::RpcController* controller,
                              const ::curvefs::mds::UmountFsRequest* request,
                              ::curvefs::mds::UmountFsResponse* response,
                              ::google::protobuf::Closure* done) {
    brpc::ClosureGuard doneGuard(done);
    brpc::Controller* cntl = static_cast<brpc::Controller*>(controller);
    std::string fsName = request->fsname();
    std::string mount = request->mountpoint();
    LOG(INFO) << "UmountFs request, " << request->ShortDebugString();
    FSStatusCode status = fsManager_->UmountFs(fsName, mount);
    if (status != FSStatusCode::OK) {
        response->set_statuscode(status);
        LOG(ERROR) << "UmountFs fail, fsName = " << fsName
                   << ", mountPoint = " << mount
                   << ", errCode = " << FSStatusCode_Name(status);
        return;
    }

    response->set_statuscode(FSStatusCode::OK);
    LOG(INFO) << "UmountFs success, fsName = " << fsName
              << ", mountPoint = " << mount;
    return;
}

void MdsServiceImpl::GetFsInfo(::google::protobuf::RpcController* controller,
                               const ::curvefs::mds::GetFsInfoRequest* request,
                               ::curvefs::mds::GetFsInfoResponse* response,
                               ::google::protobuf::Closure* done) {
    brpc::ClosureGuard doneGuard(done);
    brpc::Controller* cntl = static_cast<brpc::Controller*>(controller);

    LOG(INFO) << "GetFsInfo request: " << request->ShortDebugString();

    FsInfo* fsInfo = response->mutable_fsinfo();
    FSStatusCode status = FSStatusCode::OK;
    if (request->has_fsid() && request->has_fsname()) {
        status =
            fsManager_->GetFsInfo(request->fsname(), request->fsid(), fsInfo);
    } else if (!request->has_fsid() && request->has_fsname()) {
        status = fsManager_->GetFsInfo(request->fsname(), fsInfo);
    } else if (request->has_fsid() && !request->has_fsname()) {
        status = fsManager_->GetFsInfo(request->fsid(), fsInfo);
    } else {
        status = FSStatusCode::PARAM_ERROR;
    }

    if (status != FSStatusCode::OK) {
        response->clear_fsinfo();
        response->set_statuscode(status);
        LOG(ERROR) << "GetFsInfo fail, request: " << request->ShortDebugString()
                   << ", errCode = " << FSStatusCode_Name(status);
        return;
    }

    response->set_statuscode(FSStatusCode::OK);
    LOG(INFO) << "GetFsInfo success, response: "
              << response->ShortDebugString();
    return;
}

void MdsServiceImpl::DeleteFs(::google::protobuf::RpcController* controller,
                              const ::curvefs::mds::DeleteFsRequest* request,
                              ::curvefs::mds::DeleteFsResponse* response,
                              ::google::protobuf::Closure* done) {
    brpc::ClosureGuard doneGuard(done);
    brpc::Controller* cntl = static_cast<brpc::Controller*>(controller);
    std::string fsName = request->fsname();
    LOG(INFO) << "DeleteFs request, fsName = " << fsName;
    FSStatusCode status = fsManager_->DeleteFs(fsName);
    response->set_statuscode(status);
    if (status != FSStatusCode::OK && status != FSStatusCode::UNDER_DELETING) {
        LOG(ERROR) << "DeleteFs fail, fsName = " << fsName
                   << ", errCode = " << FSStatusCode_Name(status);
        return;
    }

    LOG(INFO) << "DeleteFs success, fsName = " << fsName;
    return;
}

void MdsServiceImpl::AllocateS3Chunk(
    ::google::protobuf::RpcController* controller,
    const ::curvefs::mds::AllocateS3ChunkRequest* request,
    ::curvefs::mds::AllocateS3ChunkResponse* response,
    ::google::protobuf::Closure* done) {
    brpc::ClosureGuard guard(done);
    VLOG(0) << "start to allocate chunkId.";

    uint64_t chunkId = 0;
    int stat = chunkIdAllocator_->GenChunkId(&chunkId);
    FSStatusCode resStat;
    if (stat >= 0) {
        resStat = OK;
    } else {
        resStat = ALLOCATE_CHUNKID_ERROR;
    }

    response->set_statuscode(resStat);

    if (resStat != OK) {
        LOG(ERROR) << "AllocateS3Chunk failure, request: "
                   << request->ShortDebugString()
                   << ", error: " << FSStatusCode_Name(resStat);
    } else {
        response->set_chunkid(chunkId);
        VLOG(0) << "AllocateS3Chunk success, request: "
                << request->ShortDebugString()
                << ", response: " << response->ShortDebugString();
    }
}

void MdsServiceImpl::ListClusterFsInfo(
    ::google::protobuf::RpcController* controller,
    const ::curvefs::mds::ListClusterFsInfoRequest* request,
    ::curvefs::mds::ListClusterFsInfoResponse* response,
    ::google::protobuf::Closure* done) {
    brpc::ClosureGuard guard(done);
    LOG(INFO) << "start to check cluster fs info.";
    fsManager_->GetAllFsInfo(response->mutable_fsinfo());
    LOG(INFO) << "ListClusterFsInfo success, response: "
              << response->ShortDebugString();
    return;
}

void MdsServiceImpl::RefreshSession(
    ::google::protobuf::RpcController *controller,
    const ::curvefs::mds::RefreshSessionRequest *request,
    ::curvefs::mds::RefreshSessionResponse *response,
    ::google::protobuf::Closure *done) {
    brpc::ClosureGuard guard(done);
    fsManager_->RefreshSession(request->txids(),
                               response->mutable_latesttxidlist());
    response->set_statuscode(FSStatusCode::OK);
}

void MdsServiceImpl::GetLatestTxId(
    ::google::protobuf::RpcController* controller,
    const GetLatestTxIdRequest* request,
    GetLatestTxIdResponse* response,
    ::google::protobuf::Closure* done) {
    brpc::ClosureGuard guard(done);
    fsManager_->GetLatestTxId(request, response);
}

void MdsServiceImpl::CommitTx(::google::protobuf::RpcController* controller,
                              const CommitTxRequest* request,
                              CommitTxResponse* response,
                              ::google::protobuf::Closure* done) {
    brpc::ClosureGuard guard(done);
    fsManager_->CommitTx(request, response);
}

}  // namespace mds
}  // namespace curvefs