Open Stack

Hi,

How many CPUs/Memory has your server?

Best regards,

Alfredo



On Mon, Oct 19, 2020 at 9:09 PM lejeczek <peljasz at yahoo.co.uk> wrote:

> Hi guys.
> I'm trying to deploy with "packstack --allinone" and it always (tried ~5
> times) fails with:
> ...
> ERROR : Error appeared during Puppet run:A.B.C.D_compute.pp
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> pymysql.err.OperationalError: (1040, 'Too many connections')
> You will find full trace in log
> /var/tmp/packstack/20201018-183415-ik3ijyw7/manifests/172.24.154.202_compute.pp.log
> Please check log file
> /var/tmp/packstack/20201018-183415-ik3ijyw7/openstack-setup.log for more
> information
>
>
> If some expert might be interested then in
> /var/tmp/packstack/20201018-183415-ik3ijyw7/manifests/172.24.154.202_compute.pp.log
> ....
> Notice:
> /Stage[main]/Nova::Compute::Libvirt/Nova_config[DEFAULT/compute_driver]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Compute::Libvirt/Nova_config[vnc/server_listen]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Compute::Libvirt/Nova_config[libvirt/virt_type]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Compute::Libvirt/Nova_config[libvirt/cpu_mode]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Compute::Libvirt/Nova_config[libvirt/inject_password]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Compute::Libvirt/Nova_config[libvirt/inject_key]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Compute::Libvirt/Nova_config[libvirt/inject_partition]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Migration::Libvirt/Nova_config[libvirt/live_migration_uri]/ensure:
> created
> Notice:
> /Stage[main]/Nova::Compute::Libvirt::Services/Service[libvirt]/ensure:
> ensure changed 'stopped' to 'running'
> Notice: /Stage[main]/Neutron::Deps/Anchor[neutron::service::begin]:
> Triggered 'refresh' from 2 events
> Notice: /Stage[main]/Nova::Deps/Anchor[nova::config::end]: Triggered
> 'refresh' from 22 events
> Notice: /Stage[main]/Nova::Deps/Anchor[nova::service::begin]: Triggered
> 'refresh' from 1 event
> Notice:
> /Stage[main]/Nova::Compute/Nova::Generic_service[compute]/Service[nova-compute]/ensure:
> ensure changed 'stopped' to 'running'
> Notice: /Stage[main]/Nova::Deps/Anchor[nova::service::end]: Triggered
> 'refresh' from 1 event
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> An error has occurred:
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> Traceback (most recent call last):
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line
> 2262, in _wrap_pool_connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return fn()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 294, in unique_connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return _ConnectionFairy._checkout(self)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 751, in _checkout
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> fairy = _ConnectionRecord.checkout(pool)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 483, in checkout
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> rec = pool._do_get()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/impl.py", line
> 138, in _do_get
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self._dec_overflow()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/langhelpers.py",
> line 68, in __exit__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> compat.reraise(exc_type, exc_value, exc_tb)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py", line
> 129, in reraise
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> raise value
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/impl.py", line
> 135, in _do_get
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return self._create_connection()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 299, in _create_connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return _ConnectionRecord(self)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 428, in __init__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self.__connect(first_connect_check=True)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 630, in __connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> connection = pool._invoke_creator(self)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/strategies.py",
> line 114, in connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return dialect.connect(*cargs, **cparams)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/default.py",
> line 453, in connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return self.dbapi.connect(*cargs, **cparams)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/__init__.py", line 94, in
> Connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return Connection(*args, **kwargs)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 325,
> in __init__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self.connect()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 599,
> in connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self._request_authentication()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 861,
> in _request_authentication
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> auth_packet = self._read_packet()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 684,
> in _read_packet
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> packet.check_error()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/protocol.py", line 220, in
> check_error
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> err.raise_mysql_exception(self._data)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/err.py", line 109, in
> raise_mysql_exception
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> raise errorclass(errno, errval)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> pymysql.err.OperationalError: (1040, 'Too many connections')
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
>
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> The above exception was the direct cause of the following exception:
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
>
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> Traceback (most recent call last):
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/nova/cmd/manage.py", line 2777, in
> main
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> ret = fn(*fn_args, **fn_kwargs)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/nova/cmd/manage.py", line 1144, in
> discover_hosts
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> by_service)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/nova/objects/host_mapping.py", line
> 256, in discover_hosts
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> cell_mappings = objects.CellMappingList.get_all(ctxt)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_versionedobjects/base.py", line
> 184, in wrapper
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> result = fn(cls, context, *args, **kwargs)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/nova/objects/cell_mapping.py", line
> 256, in get_all
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> db_mappings = cls._get_all_from_db(context)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py",
> line 1013, in wrapper
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> with self._transaction_scope(context):
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/contextlib.py", line 81, in __enter__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return next(self.gen)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py",
> line 1063, in _transaction_scope
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> context=context) as resource:
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/contextlib.py", line 81, in __enter__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return next(self.gen)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py",
> line 658, in _session
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> bind=self.connection, mode=self.mode)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py",
> line 418, in _create_session
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self._start()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py",
> line 510, in _start
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> engine_args, maker_args)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py",
> line 534, in _setup_for_connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> sql_connection=sql_connection, **engine_kwargs)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/debtcollector/renames.py", line 43,
> in decorator
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return wrapped(*args, **kwargs)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py", line
> 201, in create_engine
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> test_conn = _test_connection(engine, max_retries, retry_interval)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py", line
> 376, in _test_connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return engine.connect()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line
> 2193, in connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return self._connection_cls(self, **kwargs)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line
> 103, in __init__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> else engine.raw_connection()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line
> 2293, in raw_connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self.pool.unique_connection, _connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line
> 2266, in _wrap_pool_connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> e, dialect, self
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line
> 1534, in _handle_dbapi_exception_noconnection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> util.raise_from_cause(newraise, exc_info)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py", line
> 383, in raise_from_cause
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> reraise(type(exception), exception, tb=exc_tb, cause=cause)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py", line
> 128, in reraise
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> raise value.with_traceback(tb)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line
> 2262, in _wrap_pool_connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return fn()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 294, in unique_connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return _ConnectionFairy._checkout(self)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 751, in _checkout
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> fairy = _ConnectionRecord.checkout(pool)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 483, in checkout
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> rec = pool._do_get()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/impl.py", line
> 138, in _do_get
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self._dec_overflow()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/langhelpers.py",
> line 68, in __exit__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> compat.reraise(exc_type, exc_value, exc_tb)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py", line
> 129, in reraise
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> raise value
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/impl.py", line
> 135, in _do_get
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return self._create_connection()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 299, in _create_connection
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return _ConnectionRecord(self)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 428, in __init__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self.__connect(first_connect_check=True)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/pool/base.py", line
> 630, in __connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> connection = pool._invoke_creator(self)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/strategies.py",
> line 114, in connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return dialect.connect(*cargs, **cparams)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/default.py",
> line 453, in connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return self.dbapi.connect(*cargs, **cparams)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/__init__.py", line 94, in
> Connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> return Connection(*args, **kwargs)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 325,
> in __init__
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self.connect()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 599,
> in connect
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> self._request_authentication()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 861,
> in _request_authentication
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> auth_packet = self._read_packet()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/connections.py", line 684,
> in _read_packet
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> packet.check_error()
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/protocol.py", line 220, in
> check_error
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> err.raise_mysql_exception(self._data)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> File "/usr/lib/python3.6/site-packages/pymysql/err.py", line 109, in
> raise_mysql_exception
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> raise errorclass(errno, errval)
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> sqlalchemy.exc.OperationalError: (pymysql.err.OperationalError) (1040, 'Too
> many connections')
> Notice:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]/returns:
> (Background on this error at: http://sqlalche.me/e/e3q8)
> Error:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]:
> Failed to call refresh: 'nova-manage  cell_v2 discover_hosts' returned 255
> instead of one of [0]
> Error:
> /Stage[main]/Nova::Cell_v2::Discover_hosts/Exec[nova-cell_v2-discover_hosts]:
> 'nova-manage  cell_v2 discover_hosts' returned 255 instead of one of [0]
>
> Bit discouraging to fail at start but I trust you can share some good
> advice.
> I'm on Centos8 with ussuri.
> Many thanks, L.
>
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