From 5b87b21ccdd5938acf81afed00ccf0d957f5047c Mon Sep 17 00:00:00 2001 From: Dan McGee Date: Tue, 21 Sep 2010 18:31:26 -0500 Subject: Allow caching of mirror status info Signed-off-by: Dan McGee --- mirrors/utils.py | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 mirrors/utils.py (limited to 'mirrors/utils.py') diff --git a/mirrors/utils.py b/mirrors/utils.py new file mode 100644 index 00000000..bbbaca26 --- /dev/null +++ b/mirrors/utils.py @@ -0,0 +1,45 @@ +from django.db.models import Avg, Count, Max, Min, StdDev + +from main.utils import cache_function +from .models import MirrorLog, MirrorProtocol, MirrorUrl + +import datetime + +cutoff_time = datetime.datetime.utcnow() - datetime.timedelta(hours=24) + +@cache_function(300) +def get_mirror_statuses(): + protocols = MirrorProtocol.objects.exclude(protocol__iexact='rsync') + # I swear, this actually has decent performance... + urls = MirrorUrl.objects.select_related( + 'mirror', 'protocol').filter( + mirror__active=True, mirror__public=True, + protocol__in=protocols).filter( + logs__check_time__gte=cutoff_time).annotate( + check_count=Count('logs'), last_sync=Max('logs__last_sync'), + last_check=Max('logs__check_time'), + duration_avg=Avg('logs__duration'), duration_min=Min('logs__duration'), + duration_max=Max('logs__duration'), duration_stddev=StdDev('logs__duration') + ).order_by('-last_sync', '-duration_avg') + + for url in urls: + if url.last_check and url.last_sync: + d = url.last_check - url.last_sync + url.delay = d + url.score = d.days * 24 + d.seconds / 3600 + url.duration_avg + url.duration_stddev + else: + url.delay = None + url.score = None + return urls + +@cache_function(300) +def get_mirror_errors(): + errors = MirrorLog.objects.filter( + is_success=False, check_time__gte=cutoff_time).values( + 'url__url', 'url__protocol__protocol', 'url__mirror__country', + 'error').annotate( + error_count=Count('error'), last_occurred=Max('check_time') + ).order_by('-last_occurred', '-error_count') + return list(errors) + +# vim: set ts=4 sw=4 et: -- cgit v1.2.3-54-g00ecf