Keras: 基于 Python 的深度学习库 Keras: The Python Deep Learning library* Author: Keras-Team Contributor: 万 震 (WAN Zhen) � wanzhenchn � wanzhen@cqu.edu.cn 2018 年 12 月 24 日 *Copyright © 2018 by Keras-Team Keras-Team 前 言 整理 Keras: 基于 Python 的深度学习库 PDF 版的主要原因在于学习 Keras 深度学习库时方 便本地查阅，下载最新 PDF 版本请访问: https://github.com/wanzhenchn/keras-docs-zh。 感谢 keras-team 所做的中文翻译工作，本文档制作基于此处。 严正声明：本文档可免费用于学习和科学研究，可自由传播，但切勿擅自用于商业用途，由 purposes. Otherwise, the contributor is not responsible for the consequences. 目录 I 目录 1 Keras: 基于 Python 的深度学习库 1 1.1 你恰好发现了 Keras . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPERATOR 5.1. 关于 OPERATOR SDK 5.2. 安装 OPERATOR SDK CLI 5.3. 基于 GO 的 OPERATOR 5.4. 基于 ANSIBLE 的 OPERATOR 5.5. 基于 HELM 的 OPERATOR 5.6. 基于 JAVA 的 OPERATOR 5.7. 定义集群服务版本（CSV） 5.8. 使用捆绑包镜像 5.9. 遵守 POD 安全准入 5.13. 高可用性或单节点集群检测和支持 5.14. 使用 PROMETHEUS 配置内置监控 5.15. 配置领导选举机制 5.16. 为多平台支持配置 OPERATOR 项目 5.17. 基于 GO 的 OPERATOR 的对象修剪工具 4 4 4 5 6 6 7 23 25 64 66 68 70 79 79 80 90 90 107 108 111 113 116 则可持续监控集群的当前状态。非集群服务仍非常适合于 Service Broker，但 也存在合适于这些服务的 Operator。 2.1.2. Operator Framework Operator Framework 是基于上述客户体验提供的一系列工具和功能。不仅仅是编写代码；测试、交付和 更新 Operator 也同样重要。Operator Framework 组件包含用于解决这些问题的开源工具： Operator

upgrade will fail. • Deprecate the --sort-dir parameter in the cdc cli changefeed command of TiCDC. Instead, you can set --sort-dir in the cdc server command. #1795 • After upgrading to TiDB 5.1, if TiDB that the incorrect handling of io.EOF might cause replication interruption #1633 * Correct the TiKV CDC endpoint CPU metric in the TiCDC dashboard #1645 * Increase defaultBufferChanSize to avoid replication LOAD DATA Y Y Y N Database migration toolkit (DM) Y Y Y Y TiDB Binlog Y Y Y Y Change data capture (CDC) Y Y Y Y 2.3.11 Management, observability, and tools Management, observability, and tools 5.2 5.1

LOAD DATA Y Y Y N Database migration toolkit (DM) Y Y Y Y TiDB Binlog Y Y Y Y Change data capture (CDC) Y Y Y Y 2.3.11 Management, observability, and tools Management, observability, and tools 5.2 5.1 (nvme ssd) * 1 10.0.1.7 10.0.1.8 10.0.1.9 Default port Global di- rec- tory con- fig- u- ra- tion CDC 3 8 VCore 16GB * 1 10.0.1.11 10.0.1.12 10.0.1.13 Default port Global di- rec- tory con- fig- u- ra- native high availability. After the deployment, start TiCDC and create the replication task using cdc cli. • TiDB Binlog deployment topology This is to deploy TiDB Binlog along with the minimal cluster

workaround is to disable the scheduling and restart the unavailable TiKV #10909 – Fix the issue that CDC adds scan retries frequently due to the Congest error #11082 – Fix the issue that the Raft connection Y Y Y N 3 Database migration toolkit (DM) Y Y Y Y Y TiDB Binlog Y Y Y Y Y Change data capture (CDC) Y Y Y Y Y 2.3.11 Management, observability, and tools Management, observability, and tools 5.3 5 (nvme ssd) * 1 10.0.1.7 10.0.1.8 10.0.1.9 Default port Global di- rec- tory con- fig- u- ra- tion CDC 3 8 VCore 16GB * 1 10.0.1.11 10.0.1.12 10.0.1.13 Default port Global di- rec- tory con- fig- u- ra-

37 For more information, see documentation. • Performance Overview dashboard adds TiFlash and CDC (Change Data Capture) panels #39230 @dbsid Since v6.1.0, TiDB has introduced the Performance Overview TiFlash and CDC pan- els. With these panels, starting from v6.5.0, you can use the Performance Overview dashboard to analyze the performance of all components in a TiDB cluster. The TiFlash and CDC panels the request types, latency analysis, and resource usage overview of your TiFlash cluster. • On the CDC panels, you can easily view the health, replication latency, data flow, and downstream write latency

Y Y Y Y Y Y Y Y Y TiDB Bin- log 6 RemovedDeprecated Y Y Y Y Y Y Y Y Y Y Change data cap- ture (CDC) Y Y Y Y Y Y Y Y Y Y Y Y 5Starting from TiDB v7.0.0, the new parameter FIELDS DEFINED NULL BY and fig- u- ra- tion 735 Instance Count Physical ma- chine con- fig- u- ra- tion IP Configuration CDC 3 8 VCore 16GB * 1 10.0.1.11 10.0.1.12 10.0.1.13 Default port Global di- rec- tory con- fig- u- ra- Benchmark database with different workloads br pingcap TiDB/TiKV cluster backup restore tool. cdc pingcap CDC is a change data capture tool for TiDB chaosd community An easy-to-use Chaos Engineering tool

gra- tion toolkit (DM) Y Y Y Y Y Y Y Y Y TiDB Bin- log 6 Y Y Y Y Y Y Y Y Y Change data cap- ture (CDC) Y Y Y Y Y Y Y Y Y Stream data to Ama- zon S3, GCS, Azure Blob Stor- age, and NFS through TiCDC fig- u- ra- tion 649 Instance Count Physical ma- chine con- fig- u- ra- tion IP Configuration CDC 3 8 VCore 16GB * 1 10.0.1.11 10.0.1.12 10.0.1.13 Default port Global di- rec- tory con- fig- u- ra- Benchmark database with different workloads br pingcap TiDB/TiKV cluster backup restore tool. cdc pingcap CDC is a change data capture tool for TiDB chaosd community An easy-to-use Chaos Engineering tool

toolkit (DM) Y Y Y Y Y Y Y Y Y Y Y TiDB Bin- log 7 Y Y Y Y Y Y Y Y Y Y Y Change data cap- ture (CDC) Y Y Y Y Y Y Y Y Y Y Y 5Starting from TiDB v7.0.0, the new parameter FIELDS DEFINED NULL BY and support fig- u- ra- tion 651 Instance Count Physical ma- chine con- fig- u- ra- tion IP Configuration CDC 3 8 VCore 16GB * 1 10.0.1.11 10.0.1.12 10.0.1.13 Default port Global di- rec- tory con- fig- u- ra- Benchmark database with different workloads br pingcap TiDB/TiKV cluster backup restore tool cdc pingcap CDC is a change data capture tool for TiDB client pingcap Client to connect playground cluster

tion toolkit (DM) Y Y Y Y Y Y Y Y Y Y TiDB Bin- log 7 Y Y Y Y Y Y Y Y Y Y Change data cap- ture (CDC) Y Y Y Y Y Y Y Y Y Y Stream data to Ama- zon S3, GCS, Azure Blob Stor- age, and NFS through TiCDC fig- u- ra- tion 636 Instance Count Physical ma- chine con- fig- u- ra- tion IP Configuration CDC 3 8 VCore 16GB * 1 10.0.1.11 10.0.1.12 10.0.1.13 Default port Global di- rec- tory con- fig- u- ra- Benchmark database with different workloads br pingcap TiDB/TiKV cluster backup restore tool cdc pingcap CDC is a change data capture tool for TiDB client pingcap Client to connect playground cluster