nova/nova/conf/rpc.py
Dan Smith fe26a52024 Use oslo.messaging per-call monitoring
This change makes nova configure oslo.messaging's active call monitoring
feature if the operator increases the rpc_response_timeout configuration
option beyond the default of 60 seconds. If this happens, oslo.messaging will
heartbeat actively-running calls to indicate that they are still running,
avoiding a false timeout at the shorter interval, while still detecting
actual dead-service failures before the longer timeout value.

In addition, this adds a long_rpc_timeout configuration option that we
can use for known-to-run-long operations separately from the base
rpc_response_timeout value, and pre_live_migration() is changed to use
this, as it is known to suffer from early false timeouts.

Depends-On: Iecb7bef61b3b8145126ead1f74dbaadd7d97b407
Change-Id: Icb0bdc6d4ce4524341e70e737eafcb25f346d197
2018-06-11 14:44:10 -07:00

47 lines
1.2 KiB
Python

# Copyright 2018 OpenStack Foundation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_config import cfg
rpc_opts = [
cfg.IntOpt("long_rpc_timeout",
default=1800,
help="""
This option allows setting an alternate timeout value for RPC calls
that have the potential to take a long time. If set, RPC calls to
other services will use this value for the timeout (in seconds)
instead of the global rpc_response_timeout value.
Operations with RPC calls that utilize this value:
* live migration
Related options:
* rpc_response_timeout
"""),
]
ALL_OPTS = rpc_opts
def register_opts(conf):
conf.register_opts(ALL_OPTS)
def list_opts():
return {'DEFAULT': ALL_OPTS}