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dht_crawler: clean in memory set for expired peers

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Victor Shyba 2022-07-28 22:03:38 -03:00 committed by Victor Shyba
parent d0497cf6b5
commit 0e7a1aee0a
1 changed files with 10 additions and 1 deletions
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11
scripts/dht_crawler.py
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@ -71,7 +71,10 @@ class PeerStorage(SQLiteMixin):
self.db.writer_connection.row_factory = dict_row_factory
async def all_peers(self):
return [DHTPeer(**peer) for peer in await self.db.execute_fetchall("select * from peer")]
return [
DHTPeer(**peer) for peer in await self.db.execute_fetchall(
"select * from peer where latency > 0 or last_seen < datetime('now', '-1h')")
]
async def save_peers(self, *peers):
log.info("Saving graph nodes (peers) to DB")
@ -263,6 +266,11 @@ class Crawler:
to_check = [peer for peer in self.all_peers if peer.last_check is None or peer.last_check < self.refresh_limit]
return to_check
def remove_expired_peers(self):
for key, peer in list(self._memory_peers.items()):
if (peer.latency or 0) < 1 and peer.last_seen < self.refresh_limit:
del self._memory_peers[key]
def add_peers(self, *peers):
for peer in peers:
db_peer = self.get_from_peer(peer)
@ -278,6 +286,7 @@ class Crawler:
connections_to_save = self._connections
self._connections = {}
# await self.db.save_connections(connections_to_save) heavy call
self.remove_expired_peers()
def get_from_peer(self, peer):
return self._memory_peers.get((peer.address, peer.udp_port), None)