Expose per-actor registry addrs via `.reg_addrs`
Since it's handy to be able to debug the *writing* of this instance var (particularly when checking state passed down to a child in `Actor._from_parent()`), rename and wrap the underlying `Actor._reg_addrs` as a settable `@property` and add validation to the `.setter` for sanity - actor discovery is a critical functionality. Other tweaks: - fix `.cancel_soon()` to pass expected argument.. - update internal runtime error message to be simpler and link to GH issues. - use new `Actor.reg_addrs` throughout core.shielded_ctx_cancel
Tyler Goodlet
parent
a3ed30e62b
commit
1d6f55543d
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@ -553,12 +553,6 @@ class Actor:
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)
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registry_addrs: list[tuple[str, int]] = [arbiter_addr]
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self._reg_addrs: list[tuple[str, int]] = (
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registry_addrs
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or
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None
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)
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# marked by the process spawning backend at startup
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# will be None for the parent most process started manually
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# by the user (currently called the "arbiter")
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@ -591,6 +585,44 @@ class Actor:
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ActorNursery | None,
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] = {} # type: ignore # noqa
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# when provided, init the registry addresses property from
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# input via the validator.
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self._reg_addrs: list[tuple[str, int]] = []
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if registry_addrs:
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self.reg_addrs: list[tuple[str, int]] = registry_addrs
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@property
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def reg_addrs(self) -> list[tuple[str, int]]:
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'''
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List of (socket) addresses for all known (and contactable)
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registry actors.
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'''
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return self._reg_addrs
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@reg_addrs.setter
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def reg_addrs(
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self,
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addrs: list[tuple[str, int]],
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) -> None:
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if not addrs:
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log.warning(
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'Empty registry address list is invalid:\n'
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f'{addrs}'
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)
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return
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# always sanity check the input list since it's critical
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# that addrs are correct for discovery sys operation.
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for addr in addrs:
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if not isinstance(addr, tuple):
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raise ValueError(
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'Expected `Actor.reg_addrs: list[tuple[str, int]]`\n'
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f'Got {addrs}'
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)
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self._reg_addrs = addrs
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async def wait_for_peer(
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self, uid: tuple[str, str]
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) -> tuple[trio.Event, Channel]:
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@ -670,9 +702,10 @@ class Actor:
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stream: trio.SocketStream,
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) -> None:
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"""Entry point for new inbound connections to the channel server.
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'''
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Entry point for new inbound connections to the channel server.
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"""
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'''
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self._no_more_peers = trio.Event() # unset
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chan = Channel.from_stream(stream)
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@ -792,17 +825,21 @@ class Actor:
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if disconnected:
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# if the transport died and this actor is still
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# registered within a local nursery, we report that the
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# IPC layer may have failed unexpectedly since it may be
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# the cause of other downstream errors.
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# registered within a local nursery, we report
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# that the IPC layer may have failed
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# unexpectedly since it may be the cause of
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# other downstream errors.
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entry = local_nursery._children.get(uid)
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if entry:
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_, proc, _ = entry
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poll = getattr(proc, 'poll', None)
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if poll and poll() is None:
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if (
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(poll := getattr(proc, 'poll', None))
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and poll() is None
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):
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log.cancel(
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f'Actor {uid} IPC broke but proc is alive?'
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f'Actor {uid} IPC broke but proc is alive?\n'
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'Attempting to self cancel..'
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)
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# ``Channel`` teardown and closure sequence
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@ -1016,14 +1053,18 @@ class Actor:
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_state._runtime_vars.update(rvs)
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for attr, value in parent_data.items():
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if attr == '_reg_addrs':
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if (
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attr == 'reg_addrs'
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and value
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):
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# XXX: ``msgspec`` doesn't support serializing tuples
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# so just cash manually here since it's what our
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# internals expect.
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self._reg_addrs = [
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tuple(val) for val in value
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] if value else None
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# TODO: we don't really NEED these as
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# tuples so we can probably drop this
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# casting since apparently in python lists
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# are "more efficient"?
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self.reg_addrs = [tuple(val) for val in value]
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else:
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setattr(self, attr, value)
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@ -1099,7 +1140,10 @@ class Actor:
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'''
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assert self._service_n
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self._service_n.start_soon(self.cancel)
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self._service_n.start_soon(
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self.cancel,
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self.uid,
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)
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async def cancel(
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self,
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@ -1445,9 +1489,12 @@ async def async_main(
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# if addresses point to the same actor..
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# So we need a way to detect that? maybe iterate
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# only on unique actor uids?
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for addr in actor._reg_addrs:
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assert isinstance(addr, tuple)
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assert addr[1] # non-zero after bind
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for addr in actor.reg_addrs:
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try:
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assert isinstance(addr, tuple)
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assert addr[1] # non-zero after bind
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except AssertionError:
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await _debug.pause()
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async with get_registry(*addr) as reg_portal:
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for accept_addr in accept_addrs:
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@ -1500,12 +1547,14 @@ async def async_main(
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# once we have that all working with std streams locking?
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log.exception(
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f"Actor errored and failed to register with arbiter "
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f"@ {actor._reg_addrs[0]}?")
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f"@ {actor.reg_addrs[0]}?")
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log.error(
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"\n\n\t^^^ THIS IS PROBABLY A TRACTOR BUGGGGG!!! ^^^\n"
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"\tCALMLY CALL THE AUTHORITIES AND HIDE YOUR CHILDREN.\n\n"
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"\tIf this is a sub-actor likely its parent will keep running "
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"\tcorrectly if this error is caught and ignored.."
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"\n\n\t^^^ THIS IS PROBABLY AN INTERNAL `tractor` BUG! ^^^\n\n"
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"\t>> CALMLY CALL THE AUTHORITIES AND HIDE YOUR CHILDREN <<\n\n"
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"\tIf this is a sub-actor hopefully its parent will keep running "
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"correctly presuming this error was safely ignored..\n\n"
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"\tPLEASE REPORT THIS TRACEBACK IN A BUG REPORT: "
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"https://github.com/goodboy/tractor/issues\n"
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)
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if actor._parent_chan:
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@ -1546,7 +1595,7 @@ async def async_main(
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and not actor.is_registrar
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):
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failed: bool = False
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for addr in actor._reg_addrs:
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for addr in actor.reg_addrs:
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assert isinstance(addr, tuple)
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with trio.move_on_after(0.5) as cs:
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cs.shield = True
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