From ed008e85a8a2d9254d4d6f23cc7eb47ee52d0989 Mon Sep 17 00:00:00 2001
From: "Paul \"LeoNerd\" Evans" <paul@matrix.org>
Date: Mon, 23 Mar 2015 17:25:44 +0000
Subject: [PATCH] Reduce activity timer granularity to avoid too many quick
updates (SYN-247)
---
synapse/handlers/presence.py | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index 731df00648..bbc7a0f200 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -33,6 +33,10 @@ logger = logging.getLogger(__name__)
metrics = synapse.metrics.get_metrics_for(__name__)
+# Don't bother bumping "last active" time if it differs by less than 60 seconds
+LAST_ACTIVE_GRANULARITY = 60*1000
+
+
# TODO(paul): Maybe there's one of these I can steal from somewhere
def partition(l, func):
"""Partition the list by the result of func applied to each element."""
@@ -282,6 +286,10 @@ class PresenceHandler(BaseHandler):
if now is None:
now = self.clock.time_msec()
+ prev_state = self._get_or_make_usercache(user)
+ if now - prev_state.state.get("last_active", 0) < LAST_ACTIVE_GRANULARITY:
+ return
+
self.changed_presencelike_data(user, {"last_active": now})
def changed_presencelike_data(self, user, state):
--
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