Release Notes for MariaDB Connector/Python 1.1.6
This page is part of MariaDB's MariaDB Documentation.
The parent of this page is: Release Notes for MariaDB Connector/Python 1.1
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MariaDB Connector/Python is a native MariaDB connector for building Python applications on MariaDB. It is compliant with Python DB API 2.0 (PEP-249). It is written in Python and C and uses MariaDB Connector/C.
MariaDB Connector/Python 1.1.6 was released on 2023-03-01. This release is of General Availability (GA) maturity.
pool_validation_intervalparameter is now supported for connection pools to specify the interval between connection validation checks. (CONPY-247)
pool_validation_intervalparameter is specified in milliseconds.
The default value of the
500, which means that a connection is only validated every 500 milliseconds, even if the connection is requested from and returned to the pool multiple times during that interval.
0, a connection is validated every time it is requested from the pool, even if the connection was already recently checked.
pool_validation_intervalparameter can be specified when creating a connection pool:
pool = mariadb.ConnectionPool( host="192.0.2.1", port=3306, user="db_user", password="USER_PASSWORD", pool_name="web-app", pool_size=20, pool_validation_interval=250)
cursor.nextset()method is called, MariaDB Connector/Python can dereference a
NULLstatement handle, which can cause a crash. (CONPY-251)
ConnectionPool.connection_countproperty is accessed, MariaDB Connector/Python throws an exception. (CONPY-250)
When a connection in a connection pool fails, MariaDB Connector/Python does not replace the failed connection with a new connection. (CONPY-248)
When a connection pool is created with
pool_reset_connection=FALSEand a connection is returned to the pool with an uncommitted transaction, MariaDB Connector/Python does not rollback the transaction. (CONPY-246)
When a connection is requested from a connection pool, MariaDB Connector/Python requires too much time to find and validate a connection. (CONPY-245)
In previous releases, MariaDB Connector/Python finds a connection by iterating over all connections in the connection pool and validating each connection.
Starting with this release, MariaDB Connector/Python tracks the unused connections in the connection pool using an LRU cache, so that it can quickly obtain and validate the least recently used connection.
When MariaDB Connector/Python's initialization procedure fails, it raises an unhelpful error message. (CONPY-240)
In previous releases, MariaDB Connector/Python raises the following error message:
ImportError: Mariadb module initialization failed
Starting with this release, when more information about the problem is known, MariaDB Connector/Python appends the details to the error message:
ImportError: Mariadb module initialization failed: An error occured while loading the datetime API.