What are the advantages and disadvantages of MongoDB Sharding ChunkSize size selection?

This article mainly introduces "what are the advantages and disadvantages of MongoDB Sharding ChunkSize size selection". In daily operation, I believe many people have doubts about the advantages and disadvantages of MongoDB Sharding ChunkSize selection. Xiaobian consulted all kinds of information and sorted out simple and easy operation methods. I hope to help you answer the doubts about "what are the advantages and disadvantages of MongoDB Sharding ChunkSize selection"! Next, please follow the small series to learn together!

I. Select ChunkSize Small

- Advantages

1. Faster migration when data is balanced

2. More evenly distributed data

- Shortcomings

1. Data equalization will occur more frequently

Data splits between blocks more frequently

Note: When the data of a block exceeds 50% of the block size, the block starts to split.

3. At the routing node, more resources are consumed for location

II. Choose a larger ChunkSize

- Advantages

1. Data blocks undergo fewer splitting operations

2. Less layer overhead (config locator blocks are faster)

3. Avoid false migration

Note: A piece of data moves back and forth between two nodes.

- Shortcomings

1. Block movement will consume IO resources centrally

2. Data is not evenly distributed

At this point, the study of "MongoDB Sharding ChunkSize Selection Advantages and Disadvantages" is over, hoping to solve everyone's doubts. Theory and practice can better match to help you learn, go and try it! If you want to continue learning more relevant knowledge, please continue to pay attention to the website, Xiaobian will continue to strive to bring more practical articles for everyone!