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configurable in-memory cache sizes

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This commit is contained in:
Laura Klünder 2024-02-07 20:20:40 +01:00
parent 62ce1ab1e0
commit a8261d0b3d
3 changed files with 8 additions and 2 deletions
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3
src/c3nav/mapdata/api/base.py
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@ -1,6 +1,7 @@
import json
from functools import wraps
from django.conf import settings
from django.core.serializers.json import DjangoJSONEncoder
from django.db.models import Prefetch
from django.utils.cache import get_conditional_response
@ -15,7 +16,7 @@ from c3nav.mapdata.models.locations import SpecificLocation
from c3nav.mapdata.utils.cache.local import LocalCacheProxy
from c3nav.mapdata.utils.cache.stats import increment_cache_key
request_cache = LocalCacheProxy(maxsize=64)
request_cache = LocalCacheProxy(maxsize=settings.CACHE_SIZE_API)
def api_etag(permissions=True, etag_func=AccessPermission.etag_func, base_mapdata=False):

3
src/c3nav/mapdata/utils/locations.py
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@ -8,6 +8,7 @@ from itertools import chain
from typing import Any, List, Mapping, Optional, Union
from django.apps import apps
from django.conf import settings
from django.db.models import Prefetch, Q
from django.utils.functional import cached_property
from django.utils.translation import gettext_lazy as _
@ -24,7 +25,7 @@ from c3nav.mapdata.utils.cache.local import LocalCacheProxy
from c3nav.mapdata.utils.geometry import unwrap_geom
from c3nav.mapdata.utils.models import get_submodels
proxied_cache = LocalCacheProxy(maxsize=128)
proxied_cache = LocalCacheProxy(maxsize=settings.CACHE_SIZE_LOCATIONS)
def locations_for_request(request) -> Mapping[int, LocationSlug]:

4
src/c3nav/settings.py
View file

@ -155,6 +155,10 @@ ENABLE_MESH = config.getboolean('c3nav', 'enable_mesh', fallback=True, env='ENAB
SERVE_ANYTHING = config.getboolean('c3nav', 'serve_anything', fallback=True, env='SERVE_ANYTHING')
SERVE_API = config.getboolean('c3nav', 'serve_api', fallback=SERVE_ANYTHING, env='SERVE_API')
# how many location lookups to cache in each worker's in-memory LRU cache proxy
CACHE_SIZE_LOCATIONS = config.getint('c3nav', 'cache_size_locations', fallback=128)
CACHE_SIZE_API = config.getint('c3nav', 'cache_size_api', fallback=64)
RENDER_SCALE = config.getfloat('c3nav', 'render_scale', fallback=20.0)
IMAGE_RENDERER = config.get('c3nav', 'image_renderer', fallback='svg')
SVG_RENDERER = config.get('c3nav', 'svg_renderer', fallback='rsvg-convert')