Use less task groups now aiorpcx (0.10.4) is fixed

electrumx/server/controller.py

@@ -82,8 +82,8 @@ class Controller(ServerBase):
         '''Start the RPC server and wait for the mempool to synchronize.  Then
         start serving external clients.
         '''
-        if not (0, 10, 3) <= aiorpcx_version < (0, 11):
+        if not (0, 10, 4) <= aiorpcx_version < (0, 11):
-            raise RuntimeError('aiorpcX version 0.10.x, x >= 3, required')
+            raise RuntimeError('aiorpcX version 0.10.x, x >= 4, required')
 
         env = self.env
         min_str, max_str = env.coin.SESSIONCLS.protocol_min_max_strings()

electrumx/server/session.py

@@ -262,9 +262,8 @@ class SessionManager(object):
                                  for session in stale_sessions)
                 self.logger.info(f'closing stale connections {text}')
                 # Give the sockets some time to close gracefully
-                async with TaskGroup() as group:
                 for session in stale_sessions:
-                        await group.spawn(session.close())
+                    await session.spawn(session.close())
 
             # Consolidate small groups
             bw_limit = self.env.bandwidth_limit
@@ -510,11 +509,12 @@ class SessionManager(object):
                 await group.spawn(self._log_sessions())
                 await group.spawn(self._manage_servers())
         finally:
-            # Close servers and sessions
+            # Close servers then sessions
             await self._close_servers(list(self.servers.keys()))
-            async with TaskGroup() as group:
+            for session in list(self.sessions):
-                for session in self.sessions:
+                await session.spawn(session.close(force_after=1))
-                    await group.spawn(session.close(force_after=1))
+            for session in list(self.sessions):
+                await session.closed_event.wait()
 
     def session_count(self):
         '''The number of connections that we've sent something to.'''

setup.py

@@ -14,7 +14,7 @@ setuptools.setup(
     # "xevan_hash" package is required to sync Xuez network.
     # "groestlcoin_hash" package is required to sync Groestlcoin network.
     # "pycryptodomex" package is required to sync SmartCash network.
-    install_requires=['aiorpcX>=0.10.3,<0.11', 'attrs',
+    install_requires=['aiorpcX>=0.10.4,<0.11', 'attrs',
                       'plyvel', 'pylru', 'aiohttp >= 2'],
     packages=setuptools.find_packages(include=('electrumx*',)),
     description='ElectrumX Server',