Contents：
The strengths described in this document are exclusive to TencentDB for MySQL High Availability Edition instances.
Cost Effectiveness and Ease of Use
Read/Write Separation
MySQL supports mounting read-only instances and supports one master and multiple slaves architecture to easily cope with the pressure of massive business requests. It supports RO group with Cloud Load Balancer function, which greatly optimizes Assign's uneven pressure among read-only instances.
Powerful Hardware Ensuring High Performance
NVMe SSD features high IO performance, ensuring smooth reads and writes.
A maximum of 37000 QPS and a maximum storage space of 1TB are supported
High Security
Anti-DDoS Protection
When your data suffers a DDoS attack, this feature can help you resist various attack traffic, ensuring the normal operation of businesses.
Protection Against Database Attack
Effectively defense against such database attacks as SQL injection and brute-force attack.
High Reliability
Online master/slave data storage service is provided to ensure the security of online data. Meanwhile, the data backup mechanism stores backup data of sePCl days to allow data recovery in case of database disaster.
Data Encryption
The transparent data encryption (TDE) feature is provided to guarantee the security of real-time data and backup data.
Database Audit
The finance-grade data audit feature helps prevent core data theft, trace non-compliant operations, and locate malicious pulls.
High Availability
Real-time Hot Backup
The dual-server hot backup mechanism supports lossless recovery of data from the past 7 days to the past 732 days based on binlog. Moreover, dumps of cold backup data from the past 7 days to the past 732 days can be created.
Automatic Disaster Recovery
Automatic failure detection and automatic failover are supported. Procedures of master/slave switchover and failover are transparent to users.
Advantages over Self-built Databases
Easy Management of Massive Databases
You can manage CDB by using either command line or Web. Batch database management, permission setting and SQL import are supported.
Data Import and Backup Rollback
Multiple data import methods are provided for initialization. Data is backed up automatically on a daily basis. CDB allows data to be rolled back to any time point within the last 5 days based on backup files.
Professional Monitoring and Alarm
Multi-dimensional monitoring and custom resource threshold alarm are supported. Slow log analysis report and full SQL operating report can be downloaded.
A Variety of Connection Methods
Public network access and VPC network are supported. You can connect CDB with IDC, private cloud or other computing resources using these methods to apply them in a hybrid cloud environment.
