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Tune email notifs to make them quieter:

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* After initial 10 minute window, only alert every 24h for room notifs
 * Reset room state after 6h of idleness
 * Synchronise throttles for messages sent in the same notif, so the 24 hourly notifs 'line up'
 * Fix the email subjects to say what triggered the notification
 * Order the rooms in reverse activity order in the email, so the 'reason' room should always come first
This commit is contained in:
Matthew Hodgson 2016-05-23 19:24:11 +01:00
parent 09804c9862
commit 989bdc9e56
2 changed files with 56 additions and 18 deletions
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26
synapse/push/emailpusher.py
View file

@ -32,12 +32,19 @@ DELAY_BEFORE_MAIL_MS = 10 * 60 * 1000
# Each room maintains its own throttle counter, but each new mail notification
# sends the pending notifications for all rooms.
THROTTLE_START_MS = 10 * 60 * 1000
THROTTLE_MAX_MS = 24 * 60 * 60 * 1000 # (2 * 60 * 1000) * (2 ** 11) # ~3 days
THROTTLE_MULTIPLIER = 6 # 10 mins, 1 hour, 6 hours, 24 hours
THROTTLE_MAX_MS = 24 * 60 * 60 * 1000 # 24h
# THROTTLE_MULTIPLIER = 6 # 10 mins, 1 hour, 6 hours, 24 hours
THROTTLE_MULTIPLIER = 144 # 10 mins, 24 hours - i.e. jump straight to 1 day
# If no event triggers a notification for this long after the previous,
# the throttle is released.
THROTTLE_RESET_AFTER_MS = (2 * 60 * 1000) * (2 ** 11) # ~3 days
# 12 hours - a gap of 12 hours in conversation is surely enough to merit a new
# notification when things get going again...
THROTTLE_RESET_AFTER_MS = (12 * 60 * 60 * 1000)
# does each email include all unread notifs, or just the ones which have happened
# since the last mail?
INCLUDE_ALL_UNREAD_NOTIFS = True
class EmailPusher(object):
@ -126,8 +133,9 @@ class EmailPusher(object):
up logging, measures and guards against multiple instances of it
being run.
"""
start = 0 if INCLUDE_ALL_UNREAD_NOTIFS else self.last_stream_ordering
unprocessed = yield self.store.get_unread_push_actions_for_user_in_range(
self.user_id, self.last_stream_ordering, self.max_stream_ordering
self.user_id, start, self.max_stream_ordering
)
soonest_due_at = None
@ -150,7 +158,6 @@ class EmailPusher(object):
# we then consider all previously outstanding notifications
# to be delivered.
# debugging:
reason = {
'room_id': push_action['room_id'],
'now': self.clock.time_msec(),
@ -165,9 +172,12 @@ class EmailPusher(object):
yield self.save_last_stream_ordering_and_success(max([
ea['stream_ordering'] for ea in unprocessed
]))
yield self.sent_notif_update_throttle(
push_action['room_id'], push_action
)
# we update the throttle on all the possible unprocessed push actions
for ea in unprocessed:
yield self.sent_notif_update_throttle(
ea['room_id'], ea
)
break
else:
if soonest_due_at is None or should_notify_at < soonest_due_at:

48
synapse/push/mailer.py
View file

@ -45,7 +45,10 @@ MESSAGE_FROM_PERSON_IN_ROOM = "You have a message on %(app)s from %(person)s " \
MESSAGE_FROM_PERSON = "You have a message on %(app)s from %(person)s..."
MESSAGES_FROM_PERSON = "You have messages on %(app)s from %(person)s..."
MESSAGES_IN_ROOM = "There are some messages on %(app)s for you in the %(room)s room..."
MESSAGES_IN_ROOMS = "Here are some messages on %(app)s you may have missed..."
MESSAGES_IN_ROOM_AND_OTHERS = \
"You have messages on %(app)s in the %(room)s room and others..."
MESSAGES_FROM_PERSON_AND_OTHERS = \
"You have messages on %(app)s from %(person)s and others..."
INVITE_FROM_PERSON_TO_ROOM = "%(person)s has invited you to join the " \
"%(room)s room on %(app)s..."
INVITE_FROM_PERSON = "%(person)s has invited you to chat on %(app)s..."
@ -128,9 +131,14 @@ class Mailer(object):
state_by_room[room_id] = room_state
# Run at most 3 of these at once: sync does 10 at a time but email
# notifs are much realtime than sync so we can afford to wait a bit.
# notifs are much less realtime than sync so we can afford to wait a bit.
yield concurrently_execute(_fetch_room_state, rooms_in_order, 3)
# actually sort our so-called rooms_in_order list, most recent room first
rooms_in_order = rooms_in_order.sort(
key=lambda r: -notifs_by_room[r]['received_ts']
)
rooms = []
for r in rooms_in_order:
@ -139,12 +147,12 @@ class Mailer(object):
)
rooms.append(roomvars)
summary_text = self.make_summary_text(
notifs_by_room, state_by_room, notif_events, user_id
reason['room_name'] = calculate_room_name(
state_by_room[reason['room_id']], user_id, fallback_to_members=True
)
reason['room_name'] = calculate_room_name(
state_by_room[reason['room_id']], user_id, fallback_to_members=False
summary_text = self.make_summary_text(
notifs_by_room, state_by_room, notif_events, user_id, reason
)
template_vars = {
@ -296,7 +304,8 @@ class Mailer(object):
return messagevars
def make_summary_text(self, notifs_by_room, state_by_room, notif_events, user_id):
def make_summary_text(self, notifs_by_room, state_by_room,
notif_events, user_id, reason):
if len(notifs_by_room) == 1:
# Only one room has new stuff
room_id = notifs_by_room.keys()[0]
@ -371,9 +380,28 @@ class Mailer(object):
}
else:
# Stuff's happened in multiple different rooms
return MESSAGES_IN_ROOMS % {
"app": self.app_name,
}
# ...but we still refer to the 'reason' room which triggered the mail
if reason['room_name'] is not None:
return MESSAGES_IN_ROOM_AND_OTHERS % {
"room": reason['room_name'],
"app": self.app_name,
}
else:
# If the reason room doesn't have a name, say who the messages
# are from explicitly to avoid, "messages in the Bob room"
sender_ids = list(set([
notif_events[n['event_id']].sender
for n in notifs_by_room[reason['room_id']]
]))
return MESSAGES_FROM_PERSON_AND_OTHERS % {
"person": descriptor_from_member_events([
state_by_room[reason['room_id']][("m.room.member", s)]
for s in sender_ids
]),
"app": self.app_name,
}
def make_room_link(self, room_id):
# need /beta for Universal Links to work on iOS