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https://github.com/element-hq/synapse
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Don't let the remote offline serial list grow arbitrarily large
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@ -36,6 +36,9 @@ metrics = synapse.metrics.get_metrics_for(__name__)
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# Don't bother bumping "last active" time if it differs by less than 60 seconds
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LAST_ACTIVE_GRANULARITY = 60*1000
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# Keep no more than this number of offline serial revisions
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MAX_OFFLINE_SERIALS = 1000
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# TODO(paul): Maybe there's one of these I can steal from somewhere
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def partition(l, func):
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@ -722,6 +725,8 @@ class PresenceHandler(BaseHandler):
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0,
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(self._user_cachemap_latest_serial, set([user.to_string()]))
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)
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while len(self._remote_offline_serials) > MAX_OFFLINE_SERIALS:
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self._remote_offline_serials.pop() # remove the oldest
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del self._user_cachemap[user]
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for poll in content.get("poll", []):
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