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Fix more gssapi errors #1280

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Merged
merged 1 commit into from
Oct 24, 2017
Merged

Fix more gssapi errors #1280

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5 changes: 4 additions & 1 deletion kafka/conn.py
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Original file line number Diff line number Diff line change
Expand Up @@ -561,6 +561,9 @@ def _try_authenticate_gssapi(self, future):
# calculate an output token from kafka token (or None if first iteration)
output_token = client_ctx.step(received_token)

if output_token is None:
continue

# pass output token to kafka
try:
msg = output_token
Expand All @@ -572,7 +575,7 @@ def _try_authenticate_gssapi(self, future):
# The gssapi will be able to identify the needed next step.
# The connection is closed on failure.
header = self._recv_bytes_blocking(4)
token_size = struct.unpack('>i', header)
(token_size,) = struct.unpack('>i', header)
received_token = self._recv_bytes_blocking(token_size)

except ConnectionError as e:
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