甚至连运维人员都没有！而我们的业务又必须保障绝对稳 定，经过反复尝试，我们放弃了自建数据库的方式（坑太 多！填不完） • 目前所有业务全部使用阿里云的PgSQL，针对不同客户的业 务量大小，选择不同配置的数据库，开通简单，拓展扩容 方便。我们的客户也不需要太专业的运维人员就可以直接 使用，（稳如死狗！） Thanks

批量同步 1 3 4 2 云化在线数仓 ： 简化、敏捷、一栈式构筑数据仓库 • 一键实现 十分钟 集群创建部署 • 图形化实例管理及自动监控报警 实例SQL安全审计 实例实时监控 实例配置信息 • 云上多种生态工具配套： DTS数据传输 QuickBI DataV 数据集成 阿里云数据工 具服务 阿里云第三方 服务 … … Kettel 客户案例 – 阿里妈妈数据银行广告业务

postgres:postgres /data_pg # vi /var/lib/pgsql/data/postgresql.conf #pg-10版本，添加或修改以下配置 data_directory = '/data_pg/data/' # mv /var/lib/pgsql/* /data_pg/ #将原数据目录下所有内容移动到新数

....................................................................................483 17.4.3. Resource Limits ........................................................................................ Authentication............................................................................504 18.4. Resource Consumption.................................................................................... .............................................................................510 18.4.3. Kernel Resource Usage...................................................................................510 18.4

RemoveIPC................................................................................455 17.4.3. Resource Limits .......................................................................................456 and Authentication.....................................................................476 18.4. Resource Consumption.................................................................................... .............................................................................481 18.4.3. Kernel Resource Usage............................................................................481 18.4.4. Cost-based

RemoveIPC................................................................................477 17.4.3. Resource Limits .......................................................................................478 and Authentication.....................................................................499 18.4. Resource Consumption.................................................................................... .............................................................................503 18.4.3. Kernel Resource Usage............................................................................504 18.4.4. Cost-based

....................................................................................505 17.4.3. Resource Limits ........................................................................................ Authentication............................................................................527 18.4. Resource Consumption.................................................................................... .............................................................................532 18.4.3. Kernel Resource Usage...................................................................................532 18.4

Memory and Semaphores ...................................................................406 17.4.2. Resource Limits ........................................................................................ Authentication............................................................................426 18.4. Resource Consumption.................................................................................... .............................................................................427 18.4.2. Kernel Resource Usage...................................................................................429 18.4

Shared Memory and Semaphores ............................................................379 17.4.2. Resource Limits .......................................................................................385 and Authentication.....................................................................397 18.4. Resource Consumption.................................................................................... .............................................................................399 18.4.2. Kernel Resource Usage............................................................................401 18.4.3. Cost-Based

Connections and Authentication ................................................................. 541 19.4. Resource Consumption ............................................................................. 546 19 platforms. Here “program” refers to any executable, not only the backend process. Being slow or resource-hogging is not necessarily a bug. Read the documentation or ask on one of the mailing lists for shared transaction level advisory lock if available pg_advisory_lock locks an application-defined resource, which can be identified either by a single 64-bit key value or two 32-bit key values (note that