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# Copyright 2022 Matrix.org Foundation C.I.C.
#
# 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 typing import Any
from synapse.types import JsonDict
from ._base import Config
class BackgroundUpdateConfig(Config):
section = "background_updates"
def generate_config_section(self, **kwargs: Any) -> str:
return """\
## Background Updates ##
# Background updates are database updates that are run in the background in batches.
# The duration, minimum batch size, default batch size, whether to sleep between batches and if so, how long to
# sleep can all be configured. This is helpful to speed up or slow down the updates.
#
background_updates:
# How long in milliseconds to run a batch of background updates for. Defaults to 100. Uncomment and set
# a time to change the default.
#
#background_update_duration_ms: 500
# Whether to sleep between updates. Defaults to True. Uncomment to change the default.
#
#sleep_enabled: false
# If sleeping between updates, how long in milliseconds to sleep for. Defaults to 1000. Uncomment
# and set a duration to change the default.
#
#sleep_duration_ms: 300
# Minimum size a batch of background updates can be. Must be greater than 0. Defaults to 1. Uncomment and
# set a size to change the default.
#
#min_batch_size: 10
# The batch size to use for the first iteration of a new background update. The default is 100.
# Uncomment and set a size to change the default.
#
#default_batch_size: 50
"""
def read_config(self, config: JsonDict, **kwargs: Any) -> None:
bg_update_config = config.get("background_updates") or {}
self.update_duration_ms = bg_update_config.get(
"background_update_duration_ms", 100
)
self.sleep_enabled = bg_update_config.get("sleep_enabled", True)
self.sleep_duration_ms = bg_update_config.get("sleep_duration_ms", 1000)
self.min_batch_size = bg_update_config.get("min_batch_size", 1)
self.default_batch_size = bg_update_config.get("default_batch_size", 100)
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