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ChannelDB.on_node_announcement: some speed-up

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(e.g. for 100 node anns, was ~5 seconds, now 0.7 sec; so still slow)
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SomberNight 2019-05-26 05:29:05 +02:00 • committed by ThomasV
parent cffb89002c
commit 62f58c18fe
1 changed files with 2 additions and 1 deletions
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3
electrum/lnrouter.py
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@ -447,8 +447,9 @@ class ChannelDB(SqlDB):
continue
node_id = node_info.node_id
# Ignore node if it has no associated channel (DoS protection)
# FIXME this is slow
expr = or_(ChannelInfo.node1_id==node_id, ChannelInfo.node2_id==node_id)
if self.DBSession.query(ChannelInfo.short_channel_id).filter(expr).count() == 0:
if len(self.DBSession.query(ChannelInfo.short_channel_id).filter(expr).limit(1).all()) == 0:
#self.logger.info('ignoring orphan node_announcement')
continue
node = self.DBSession.query(NodeInfo).filter_by(node_id=node_id).one_or_none()