Updated on 2024-05-09 GMT+08:00
Does DRS Use Concurrency?
Concurrency is key to performance improvement. DRS uses concurrency in multiple phases. There are two types of concurrency: read/write concurrency and thread concurrency.
Read and Write Concurrency
- To migrate data quickly during full migration and ensure a stable connection, DRS extracts data at row-level with concurrency. As a result, the migration speed is maximized and repeated migration of large amounts of data will not occur.
- To speed up data writes, DRS supports table-level concurrent writes, greatly improving data transmission speed and achieving millisecond synchronization delay in the same city.
Figure 1 Read and write concurrency
Thread Concurrency
When you migrate a large number of database objects (for example, more than 10,000 tables), the structure migration will become a bottleneck. DRS optimizes concurrency for such scenarios. It uses multiple threads to concurrently query and replay structures, greatly improving structure migration performance.
Figure 2 Thread concurrency
Parent topic: Product Consulting
Product Consulting FAQs
- What Are Regions and AZs?
- What Is DRS?
- Can DRS Migrate RDS Primary/Standby Instances?
- What Constraints Does DRS Have for a Source Database?
- What Requirements Does DRS Have for a Destination Database?
- Does DRS Use Concurrency?
- Dose DRS Use Data Compression?
- Does DRS Support Migration Between the Public Cloud and the Dedicated Cloud?
- What Is the Quota?
- Does DRS Support Migration from DB2 for LUW to PostgreSQL?
- Can Microsoft SQL Server Database Synchronize Data with Local Databases in Real Time?
- Does DRS Support Data Replication in a Specified Time Period?
- Does DRS Support Resumable Uploads?
- What Is Single-Active/Dual-Active Disaster Recovery?
- What Are the Differences Between Real-Time Migration, Real-Time DR, and Real-Time Synchronization?
- How Do I Solve the Table Bloat Issue During MySQL Migration?
- How Does DRS Affect the Source and Destination Databases?
- Do I Need to Stop Services Running on the Source Database?
- What Is an SMN Topic?
- What Are the Differences Between Single-AZ and Dual-AZ DRS Tasks?
- Can DRS Migrates Table Structures Only?
- How Do I Migrate Accounts in MySQL Migration, Synchronization, and DR Tasks and Can I Change Passwords?
- What Factors Affect the DRS Task Speed and How Do I Estimate the Time Required?
- Can I Modify Objects in a DRS Task?
- Does DRS Support Data Synchronization Between Different Databases of the Same DB Instance?
- Which Operations on the Source or Destination Database Affect the DRS Task Status?
- What Are Differences Between Data Subscription and Synchronization from MySQL to Kafka?
- Why Cannot Standby Read Replicas on Some Other Clouds Be Used as the Source Database?
- Does DRS Support Migration of Users Encrypted by the Caching_sha2_password Plugin?
- Why Is the Database Disk Usage Inconsistent Before and After Data Migration?
- What Is the Serialization Mode of Messages Sent by DRS to Kafka?
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