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[Weight sync source 1/N] Keep Trainer Worker staged until release #682

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[Weight sync source 1/N] Keep Trainer Worker staged until release #682

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9 changes: 7 additions & 2 deletions tpu_sync/rpc/raiden_controller.py
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Original file line number Diff line number Diff line change
Expand Up @@ -352,7 +352,13 @@ def create_server_socket(port: int) -> socket.socket:
"""Creates an IPv6 socket (supporting IPv4 dual-stack on Linux) or falls back to IPv4."""
try:
sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
try:
sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
except OSError:
# IPv6-only environment (e.g. TI VM under enforced isolation): the
# dual-stack toggle is refused but the v6 socket itself works.
# Keep it and listen v6-only.
pass
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(("::", port))
sock.listen(128)
Expand All @@ -364,7 +370,6 @@ def create_server_socket(port: int) -> socket.socket:
sock.listen(128)
return sock


def connect_socket(
address_str: str,
timeout: float = 60.0,
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