It looks like returning a connection to ConnectionPool does not work properly.

Hey,

Like in subject - returning a connection to ConnectionPool does not work properly.
I see an error:

Traceback (most recent call last):
File "/home/db/connector.py", line 33, in <module>
main()
File "/home/db/connector.py", line 28, in main
x = pool.get_connection()
mariadb.PoolError: No more connections from pool 'testme' available*

Here is full code:

code.py

MariaDB Galera Cluster info:

'innodb_version', '5.6.39-83.1'
'protocol_version', '10'
'slave_type_conversions', ''
'version', '10.1.36-MariaDB'
'version_comment', 'MariaDB Server'
'version_compile_machine', 'x86_64'
'version_compile_os', 'Linux'
'version_malloc_library', 'system jemalloc'
'version_ssl_library', 'OpenSSL 1.0.1e-fips 11 Feb 2013'
'wsrep_patch_version', 'wsrep_25.23'*

Can you advise?

Thanks,
Mariusz