Set connection pool and overflow limits when using SQLAlchemy

Configure the connection pool size and overflow when connecting to Cloud SQL for MySQL by using SQLAlchemy.

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For detailed documentation that includes this code sample, see the following:

Code sample

Python

# Pool size is the maximum number of permanent connections to keep.
pool_size=5,
# Temporarily exceeds the set pool_size if no connections are available.
max_overflow=2,
# The total number of concurrent connections for your application will be
# a total of pool_size and max_overflow.

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