def active_pids(self, pids):
stored_pids = self.get_by_key('pids') or set()
for pid in stored_pids:
if pid not in pids:
LOG.debug('Purge dead uwsgi pid %s from pids list', pid)
self.delete_by_key('pid:%s' % pid)
self.set_by_key('pids', pids)
# remove unneeded updates
min_update = self._get_update_count()
for pid in pids:
n = self.get_by_key('pid:%s' % pid)
if n:
if n < min_update:
min_update = n
first_valid_update = self.get_by_key('first_valid_update') or 0
LOG.debug('Purge polled updates from %(first)s to %(min)s',
{'first': first_valid_update, 'min': min_update})
for delete_id_set in utils.make_range(first_valid_update, min_update,
BULK_DELETE_SIZE):
if not self.memcached.delete_multi(delete_id_set,
key_prefix=UPDATE_ID_PREFIX):
LOG.critical('Failed to delete_multi from memcached')
raise Exception('Failed to delete_multi from memcached')
self.set_by_key('first_valid_update', min_update)
def _test_one_range(self, start, end, step):
elements = set()
for chunk in utils.make_range(start, end, step):
for item in chunk:
self.assertFalse(item in elements)
elements.add(item)
self.assertTrue(set(range(start, end)) == elements)
def _test_one_range(self, start, end, step):
elements = set()
for chunk in utils.make_range(start, end, step):
for item in chunk:
self.assertFalse(item in elements)
elements.add(item)
self.assertTrue(set(range(start, end)) == elements)
def get_update(self, pid):
last_update = self.get_by_key('pid:%s' % pid)
update_count = self._get_update_count()
self.set_by_key('pid:%s' % pid, update_count)
self._set_pids(pid)
if not last_update:
for i in self.get_all_records():
yield i
else:
for update_id_set in utils.make_range(last_update, update_count,
BULK_READ_SIZE):
update_set = self.memcached.get_multi(
update_id_set, UPDATE_ID_PREFIX).values()
for i in self.memcached.get_multi(
update_set, RECORD_ID_PREFIX).values():
yield i
def get_all_records(self):
for record_id_set in utils.make_range(0, self._get_record_count(),
BULK_READ_SIZE):
for i in self.memcached.get_multi(
record_id_set, RECORD_ID_PREFIX).values():
yield i
