例： Given —— 测试上下文 When —— 执行一系列操作 Then —— 得到一系列可观察的后果，即需要检测的断言·异常自动化测试实践 Robotframework  支持python关键字，灵活定义测试  完善的测试报告  完美兼容Jenkins ci  丰富的第三方库（ssh, paramiko, request等） 用例设计原则  无需绑定特定环境，“随意拉起” 使用部署在docker的三个组件进行监控指标的处 理与展示：  Prometheus——面向云原生应用程序的开源 的监控&报警工具，curve利用它进行监控指标 的采集与存储。  Daily reporter——python脚本，定时从 Grafana获取指定集群的图表，生成集群监控 日报，并通过邮件发送。  Grafana——开源的度量分析和可视化工具， curve利用它进行数据可视化展示。 20/33监控指标（metric）的生成

网易研究院开发专家，从事过阿里巴巴Greenplum、 PostgreSQL、 MySQL数据库的架构设计和运维。 既熟悉数据库的，是最早的Oracle 9i的OCP，又懂开 发，精通C、python。 唐成（网名osdba）-3- @ 专业的PostgreSQL数据库管理平台 CLup介绍CLup产品介绍 网络 clup-agent 数据库主机1 clup-agent 数据库主机2

 MDSClient：负责与MDS交互，挂卸载卷、获取元数据信息 CLIENT整体架构QEMU： 实现了QEMU block与Client的对接层 向cinder/glance提供了Python API https://github.com/opencurve/curve-qemu-block-driver NBD： 实现了Curve-NBD，与内核NBD模块进行交互 可以作为容器的数据存储

LIFECYCLE Plan to Support app lifecycle, storage lifecycle(backup, failure, recovery) DEEP INSIGHTS Plan to Support metrics, alerts, log processing and workload analysis AUTO PILOT Plan to Support horizontal/vertical metadata backup and recovery • MDS / ChunkServer should respect failure domains of Kubernetes • Support for public cloud environments • Dashboard-driven configuration after minimal Curve installFeature alternative to host path • Support automatically detect new nodes, adding / removing nodes and disk drives • Support dynamic volume resizing • chunkserver on PVC support for different data and metadata(HDD

magnification for file new write • Cooperate with Alibaba to support high-performance polardb for postgresql using CurveBS • Cloud-native support for CurveBS • CurveBS clusters and related monitoring services FlowCurveFS Roadmap • CurveFS based on CurveBS • Cache support on CurveFS • NFS support on CurveFS • Cloud tiering support • Cloud-native support for CurveFS • CurveFS clusters and related monitoring

container service (in Plan) • Config CurveBS by (Cluster and Pool CRDs) in Kubernetes (in Plan) • Support Operator capability level 5 (in Plan) • horizontal / vertical scaling, auto config tuning, abnormal CurveFS by (cluster and storage pools) CRDs in Kubernetes (in Plan) • Support Operator capability level 5 (in Plan) • now support helmCurrent Status • Release 2 major version on CurveBS • v1.2 supporting on CurveBS • POSIX-compatible and mountable • Cache support on CurveFS • CurveFS cloud native support • csi plugin for CurveFS • support operator capability level 2: automated application provisioning

Restore data on a disk within 5 minutes Data availability of 6 nines can be achievedCloud native Support Currently we offer CSI Driver for block storage to provide PV/PVC resources on KubernetesAgenda api Manage multiple types of storage (object storage, HDFS storage, Elastic block storage) Support both on-premise and public cloudsAgenda Why develop storage Design objectives Achievements in Roadmap ● Features ○ Supports RDMA and SPDK ○ Further reduce I/O latency and improve throughput ○ Support data lifecycle management ○ Curve block devices can be used as the underlying storage of Curve file

of snapshots l Support asynchronous and incremental snapshot l Support lazy (pre-allocated space) and non-lazy (allocated space on needs) clones from snapshots/mirrors l Support rollback from snapshot scattered all over the storage nodes. ChunkServer provides 4KB random read/write capability to support 4KB aligned read/write on block devices.CurveBS file structure of virtual block device As mentioned

for more details. If this request is answered with an error code of ENOSYS and FUSE_CAP_NO_OPEN_SUPPORT is set in fuse_conn_info.capable, this is treated as success and future calls to open and release uint64_t lock_owner; /** Requested poll events. Available in ->poll. Only set on kernels which support it. If unsupported, this field is set to zero. */ uint32_t poll_events; }; // fastcfs typedef

gcc 编译 bazel build –config=gcc7-later … # use '-faligned-new' to enable C++17 over-aligned new support # 使用 clang 编译 CC=clang CXX=clang++ bazel build …2 制作镜像 docker run -v $(pwd):/curve -v /root/