engine.pool has some metrics on it:
>>> from sqlalchemy import create_engine
>>> e = create_engine("mysql://scott:tiger@localhost/test")
>>> e.pool.status()
'Pool size: 5 Connections in pool: 0 Current Overflow: -5 Current Checked out
connections: 0'
>>> e.pool.checkedout()
0
>>> c1 = e.connect()
>>> e.pool.checkedout()
1
>>> e.pool.status()
'Pool size: 5 Connections in pool: 0 Current Overflow: -4 Current Checked out
connections: 1'
>>> c2 = e.connect()
>>> e.pool.status()
'Pool size: 5 Connections in pool: 0 Current Overflow: -3 Current Checked out
connections: 2'
>>> c1.close()
>>> e.pool.status()
'Pool size: 5 Connections in pool: 1 Current Overflow: -3 Current Checked out
connections: 1'
>>> c2.close()
>>> e.pool.status()
'Pool size: 5 Connections in pool: 2 Current Overflow: -3 Current Checked out
connections: 0'
On Tue, May 5, 2020, at 11:14 AM, Oğuzhan Kaya wrote:
> I made a connection with sqlalchemy to mssql and I used queue pool. I am
> trying to understand this connetion pool is worked or not. and also I want to
> see the connections and the queue inside connection pool how can I see?
>
> engine = sal.create_engine('IP',pool_size=1,max_overflow=0)
> result = engine.execute('select * from mytable')
> result.close()
>
> --
> SQLAlchemy -
> The Python SQL Toolkit and Object Relational Mapper
>
> http://www.sqlalchemy.org/
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SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
To post example code, please provide an MCVE: Minimal, Complete, and Verifiable
Example. See http://stackoverflow.com/help/mcve for a full description.
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