Sometimes the trampoline node fails to send a payment and returns
TEMPORARY_CHANNEL_FAILURE, while it succeeds with a higher trampoline
fee. My guess is that the initial fee was not sufficient to try
all routes, and that a higher fee allows to use extra routes. I
suppose it would make more sense if the trampoline node returned
TRAMPOLINE_FEE_INSUFFICIENT in that case.
wallet.lock -> wallet.transaction_lock order must be respected.
deadlock example:
```
# ThreadID: 19100
File: ...\Python\Python310\lib\threading.py", line 966, in _bootstrap
self._bootstrap_inner()
File: ...\Python\Python310\lib\threading.py", line 1009, in _bootstrap_inner
self.run()
File: ...\Python\Python310\lib\threading.py", line 946, in run
self._target(*self._args, **self._kwargs)
File: "...\electrum\electrum\util.py", line 1552, in run_event_loop
loop.run_until_complete(stopping_fut)
File: ...\Python\Python310\lib\asyncio\base_events.py", line 633, in run_until_complete
self.run_forever()
File: ...\Python\Python310\lib\asyncio\windows_events.py", line 321, in run_forever
super().run_forever()
File: ...\Python\Python310\lib\asyncio\base_events.py", line 600, in run_forever
self._run_once()
File: ...\Python\Python310\lib\asyncio\base_events.py", line 1896, in _run_once
handle._run()
File: ...\Python\Python310\lib\asyncio\events.py", line 80, in _run
self._context.run(self._callback, *self._args)
File: "...\electrum\electrum\wallet.py", line 494, in on_event_adb_added_verified_tx
self._update_invoices_and_reqs_touched_by_tx(tx_hash)
File: "...\electrum\electrum\wallet.py", line 2454, in _update_invoices_and_reqs_touched_by_tx
status = self.get_invoice_status(request)
File: "...\electrum\electrum\wallet.py", line 2333, in get_invoice_status
paid, conf = self.is_onchain_invoice_paid(invoice)
File: "...\electrum\electrum\wallet.py", line 1120, in is_onchain_invoice_paid
is_paid, conf_needed, relevant_txs = self._is_onchain_invoice_paid(invoice)
File: "...\electrum\electrum\wallet.py", line 1095, in _is_onchain_invoice_paid
with self.lock, self.transaction_lock:
File: "...\electrum\electrum\address_synchronizer.py", line 70, in acquire
return self._lock.acquire(*args, **kwargs)
# ThreadID: 20040
File: "C:\Program Files\JetBrains\PyCharm Community Edition 2021.3.3\plugins\python-ce\helpers\pycharm\_jb_pytest_runner.py", line 51, in <module>
sys.exit(pytest.main(args, plugins_to_load + [Plugin]))
File: "...\Python\Python310\site-packages\_pytest\config\__init__.py", line 164, in main
ret: Union[ExitCode, int] = config.hook.pytest_cmdline_main(
File: ...\Python\Python310\lib\site-packages\pluggy\_hooks.py", line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_manager.py", line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_callers.py", line 39, in _multicall
res = hook_impl.function(*args)
File: "...\Python\Python310\site-packages\_pytest\main.py", line 315, in pytest_cmdline_main
return wrap_session(config, _main)
File: "...\Python\Python310\site-packages\_pytest\main.py", line 268, in wrap_session
session.exitstatus = doit(config, session) or 0
File: "...\Python\Python310\site-packages\_pytest\main.py", line 322, in _main
config.hook.pytest_runtestloop(session=session)
File: ...\Python\Python310\lib\site-packages\pluggy\_hooks.py", line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_manager.py", line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_callers.py", line 39, in _multicall
res = hook_impl.function(*args)
File: "...\Python\Python310\site-packages\_pytest\main.py", line 347, in pytest_runtestloop
item.config.hook.pytest_runtest_protocol(item=item, nextitem=nextitem)
File: ...\Python\Python310\lib\site-packages\pluggy\_hooks.py", line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_manager.py", line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_callers.py", line 39, in _multicall
res = hook_impl.function(*args)
File: "...\Python\Python310\site-packages\_pytest\runner.py", line 111, in pytest_runtest_protocol
runtestprotocol(item, nextitem=nextitem)
File: "...\Python\Python310\site-packages\_pytest\runner.py", line 130, in runtestprotocol
reports.append(call_and_report(item, "call", log))
File: "...\Python\Python310\site-packages\_pytest\runner.py", line 219, in call_and_report
call = call_runtest_hook(item, when, **kwds)
File: "...\Python\Python310\site-packages\_pytest\runner.py", line 258, in call_runtest_hook
return CallInfo.from_call(
File: "...\Python\Python310\site-packages\_pytest\runner.py", line 338, in from_call
result: Optional[TResult] = func()
File: "...\Python\Python310\site-packages\_pytest\runner.py", line 259, in <lambda>
lambda: ihook(item=item, **kwds), when=when, reraise=reraise
File: ...\Python\Python310\lib\site-packages\pluggy\_hooks.py", line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_manager.py", line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File: ...\Python\Python310\lib\site-packages\pluggy\_callers.py", line 39, in _multicall
res = hook_impl.function(*args)
File: "...\Python\Python310\site-packages\_pytest\runner.py", line 166, in pytest_runtest_call
item.runtest()
File: "...\Python\Python310\site-packages\_pytest\unittest.py", line 327, in runtest
self._testcase(result=self) # type: ignore[arg-type]
File: ...\Python\Python310\lib\unittest\case.py", line 650, in __call__
return self.run(*args, **kwds)
File: ...\Python\Python310\lib\unittest\case.py", line 591, in run
self._callTestMethod(testMethod)
File: ...\Python\Python310\lib\unittest\case.py", line 549, in _callTestMethod
method()
File: "...\electrum\electrum\tests\test_invoices.py", line 120, in test_wallet_without_ln_creates_payreq_and_gets_paid_onchain
self.assertEqual(PR_PAID, wallet1.get_invoice_status(pr))
File: "...\electrum\electrum\wallet.py", line 2333, in get_invoice_status
paid, conf = self.is_onchain_invoice_paid(invoice)
File: "...\electrum\electrum\wallet.py", line 1120, in is_onchain_invoice_paid
is_paid, conf_needed, relevant_txs = self._is_onchain_invoice_paid(invoice)
File: "...\electrum\electrum\wallet.py", line 1095, in _is_onchain_invoice_paid
with self.lock, self.transaction_lock:
File: "...\electrum\electrum\address_synchronizer.py", line 70, in acquire
return self._lock.acquire(*args, **kwargs)
```
With a PyCharm debugger attached, sometimes the python process is so
CPU-starved for me that create_and_start_event_loop() returned
before the event loop actually started, resulting in weird errors.
I guess this could happen even without a debugger attached on a
sufficiently slow CPU.
```
...\electrum\electrum\wallet.py:3580: in restore_wallet_from_text
wallet = Wallet(db, storage, config=config)
...\electrum\electrum\wallet.py:3501: in __new__
wallet = WalletClass(db, storage, config=config)
...\electrum\electrum\wallet.py:3345: in __init__
Deterministic_Wallet.__init__(self, db, storage, config=config)
...\electrum\electrum\wallet.py:3135: in __init__
self.synchronize()
...\electrum\electrum\wallet.py:3283: in synchronize
count += self.synchronize_sequence(False)
...\electrum\electrum\wallet.py:3267: in synchronize_sequence
self.create_new_address(for_change)
...\electrum\electrum\wallet.py:3254: in create_new_address
self.adb.add_address(address)
...\electrum\electrum\address_synchronizer.py:213: in add_address
self.up_to_date_changed()
...\electrum\electrum\address_synchronizer.py:680: in up_to_date_changed
util.trigger_callback('adb_set_up_to_date', self)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <electrum.util.CallbackManager object at 0x000002B1788AD6F0>
event = 'adb_set_up_to_date'
args = (<electrum.address_synchronizer.AddressSynchronizer object at 0x000002B17A687670>,)
def trigger_callback(self, event, *args):
"""Trigger a callback with given arguments.
Can be called from any thread. The callback itself will get scheduled
on the event loop.
"""
if self.asyncio_loop is None:
self.asyncio_loop = get_asyncio_loop()
> assert self.asyncio_loop.is_running(), "event loop not running"
E AssertionError: event loop not running
...\electrum\electrum\util.py:1734: AssertionError
```
(this somehow escaped attention before, as most objects usually don't have multiple instances,
unless multiple wallets are open at the same time.)
Also, move all signal declarations, class constants and variables to the top of class definitions.
Sander van Grieken
ThomasV
SomberNight
myxmaster