当前位置：网站首页>Ask about the parallelism of MySQL source. The downstream parallelism of my source is 1. If I find that I can't turn on parallelism, I'll talk to you
Ask about the parallelism of MySQL source. The downstream parallelism of my source is 1. If I find that I can't turn on parallelism, I'll talk to you
2022-07-18 14:42:00 【Alibaba cloud Q & A】
Ask for advice MySQL Source The problem of parallelism , my Source The downstream parallelism is 1, I find it impossible to open parallel , And the downstream operator is Forward, When parallelism is turned on, it is between the downstream operator Rebalance. Open parallel can certainly increase the efficiency of the full volume stage , But will it be because Rebalance As a result, operator chains cannot be merged , Increase the cost of incremental stage ？
Take the answer 1：
The incremental source Only one parallelism works, so you can switch the parallelism if necessary （ This answer is collated from Flink CDC Community ）
边栏推荐
- 数据敏捷，HTAP数据库既决效率又决生死
- Pointer constant and constant pointer
- Codeforces Round ＃803 (Div. 2) C. 3SUM Closure
- Is it safe for Huatai Securities to open an account? Is it a regular securities company?
- Nxopen UG secondary development
- mitmproxy 入门安装
- Go-Excelize API源码阅读（一）——NewFile()
- Codeforces Global Round 21 B. NIT Destroys the Universe
- STM32 USB虚拟串口通信
- Get the file name and function name of the calling function through the decorator
猜你喜欢
Codeforces Global Round 21 D. Permutation Graph
二进制搭建 Kubernetes
Ziguang Tongchuang FPGA development jump pit Guide (V) -- DDR3 controller IP simulation
Network security experiment: firewall technology
基于单片机的氢气监测系统设计(＃0491)
如何用常数时间插入、删除和获取随机元素
Force buckle (977 and 189)
Eureka中读写锁的奇思妙想，太顶了！
用训练集去重构权重空间的几何形态
Design of hydrogen monitoring system based on single chip microcomputer (0490)
随机推荐
In depth learning (2020 Li Hongyi) learning records
基于单片机的氢气监测报警系统设计(＃0492)
用swift5 新写一个app需要用到需要考虑的
Qt自定义控件--pagenavigation(页面导航)
二進制搭建 Kubernetes
Idea integration Gerrit plug-in
NXOpen UG二次开发
ViewGroup事件分发梳理
nn. Gru() use
Zebra 888 TT doesn't recognize new paper
angr原理与实践（一）——原理
Design of combustible gas smoke system based on single chip microcomputer (0488)
Signal函数大全：
第一章 环境配置
[每周一更]-(第3期)：Web开发安全注意事项
Fleet | "background exploration" issue 4: distributed transactions
【Leetcode】2115. Find All Possible Recipes from Given Supplies
How about the income of increased life insurance? Can it be a pension financial product?
Codeforces Round ＃805 A - G
7-redis architecture design to use scenarios - cache penetration, cache avalanche, cache preheating, cache degradation