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Currently, ShardingSphere database discovery feature provides the function of automatically discovery the master-slave relationship of the database and dynamically correct the status of the data source. It supports MySQL、openGauss database type.
We consider remove this feature, beancase the design of db-discovery and dynamic readwrite-splitting of ShardingSphere seems unreasonable, ShardingSphere readwrite-splitting should kept concise and not should rely master-slave role and read datasource lists of database discovery.
During the actual development and use, we encountered many problems:
The database discovery does not meet the pluggable architecture of ShardingSphere, it needs to pass the constructed rule to readwrite-splitting.
ShardingSphere does not provide database high availability, it relies on three-party high-availability solutions to find master-slave topological relationship, there are too many three-party high-availability solutions and they are very complicated, so it is a great challenge for the ShardingSphere database discovery feature.
The database discovery function awareness may cause the entire read cluster to be unavailable when use ApsaraDB for reading cluster domain names.
Therefore, we intend to remove db-discovery feature in ShardingSphere into a separate branch for maintenance to reduce the cost of understanding and maintaining the main code.
Please voice your opinions as fully as possible. Thank you.
The text was updated successfully, but these errors were encountered:
zhaojinchao95
changed the title
Consider remove db-discovery feature of ShardingSphere
Split db-discovery feature from ShardingSphere into separate branch
Mar 7, 2023
I completely agree with it. These problems in database discovery have limited the development of ShardingSphere. It is time to remove it from the master branch.
Hi community,
Currently, ShardingSphere database discovery feature provides the function of automatically discovery the master-slave relationship of the database and dynamically correct the status of the data source. It supports
MySQL
、openGauss
database type.We consider remove this feature, beancase the design of db-discovery and dynamic readwrite-splitting of ShardingSphere seems unreasonable, ShardingSphere readwrite-splitting should kept concise and not should rely master-slave role and read datasource lists of database discovery.
During the actual development and use, we encountered many problems:
Therefore, we intend to remove db-discovery feature in ShardingSphere into a separate branch for maintenance to reduce the cost of understanding and maintaining the main code.
Please voice your opinions as fully as possible. Thank you.
The text was updated successfully, but these errors were encountered: