Bad pipe messages

No se nombran archivos fuente ni pruebas. Empieza reproduciendo los mensajes transitorios que aparecen al ejecutar celdas en un Jupyter notebook en Azure Machine Learning; después, inspecciona el ipykernel socket handler y los errores de análisis de JSON y UTF-8 reportados. El trabajo estará terminado cuando se determine si los datos del notebook se ven afectados y se documente o implemente una forma segura de suprimir los mensajes inofensivos.

When executing cells in a notebook in Azure Machine learning the following message is output occasionally
Bad pipe message: %s [b'\xc6\x9c\x9b \xf2\xe6\xa7\xb2\xfc\x82\xfa\xd6\xd8\x1d\x8d>\x0c\x08\x00\x00\xa2\xc0\x14\xc0\n\x009\x008\x007\x006\x00\x88\x00\x87\x00\x86\x00\x85\xc0\x19\x00:\x00\x89\xc0\x0f'] Bad pipe message: %s [b'\xa1\x8a\xb0#\x05,\x8d\xaa+L\xfc \x1c\x97\x01'] Bad pipe message: %s [b"\x14\xd3{W-.\x0e}\x9b\xa5&\xc2[\x80=\xad\xda\xba\x00\x00|\xc0,\xc00\x00\xa3\x00\x9f\xcc\xa9\xcc\xa8\xcc\xaa\xc0\xaf\xc0\xad\xc0\xa3\xc0\x9f\xc0]\xc0a\xc0W\xc0S\xc0+\xc0/\x00\xa2\x00\x9e\xc0\xae\xc0\xac\xc0\xa2\xc0\x9e\xc0\\\xc0\xc0V\xc0R\xc0$\xc0(\x00k\x00j\xc0#\xc0'\x00g\x00@\xc0\n\xc0\x14\x009\x008\xc0\t\xc0\x13\x003\x002\x00\x9d\xc0\xa1\xc0\x9d\xc0Q\x00\x9c\xc0\xa0\xc0\x9c\xc0P\x00=\x00<\x005\x00/\x00\x9a\x00\x99\xc0\x07\xc0\x11\x00\x96\x00\x05\x00\xff\x01\x00\x00j\x00\x00\x00\x0e\x00\x0c\x00\x00\t127.0.0.1\x00\x0b\x00\x04\x03\x00\x01\x02\x00\n\x00\x0c\x00\n\x00\x1d\x00\x17\x00\x1e\x00\x19\x00\x18\x00#\x00\x00\x00\x16\x00\x00\x00\x17\x00\x00\x00\r\x000\x00.\x04\x03\x05\x03\x06\x03\x08\x07\x08\x08\x08\t\x08\n\x08\x0b\x08\x04\x08\x05\x08\x06\x04\x01\x05\x01\x06\x01\x03\x03\x02\x03\x03\x01\x02\x01\x03\x02\x02\x02\x04\x02\x05\x02"]
Bad pipe message: %s [b'\xaf\x03\x01\x13F=\x85l\\x9c\x19A\x08\xab\x01\xc5\x196\x00\x00\xa6\xc0,\xc00\x00\xa3\x00\x9f\xcc\xa9\xcc']
Bad pipe message: %s [b"3\x0f\x86O\t\x91\xe8\xdeW\xae\xdd\x8aE\x843\xceE\xc5\x00\x00\xf4\xc00\xc0,\xc0(\xc0$\xc0\x14\xc0\n\x00\xa5\x00\xa3\x00\xa1\x00\x9f\x00k\x00j\x00i\x00h\x009\x008\x007\x006\x00\x88\x00\x87\x00\x86\x00\x85\xc0\x19\x00\xa7\x00m\x00:\x00\x89\xc02\xc0.\xc0*\xc0&\xc0\x0f\xc0\x05\x00\x9d\x00=\x005\x00\x84\xc0/\xc0+\xc0'\xc0#\xc0\x13\xc0\t\x00\xa4\x00\xa2\x00\xa0\x00\x9e\x00g\x00@\x00?\x00>\x003\x002\x001\x000\x00\x9a\x00\x99\x00\x98\x00\x97\x00E\x00D\x00C\x00B\xc0\x18\x00\xa6\x00l\x004\x00\x9b\x00F\xc01\xc0", b')\xc0%\xc0\x0e\xc0\x04\x00\x9c\x00<\x00/\x00\x96\x00A\x00\x07\xc0\x11\xc0\x07\xc0\x16\x00\x18\xc0\x0c\xc0\x02\x00\x05\x00\x04\xc0\x12\xc0\x08\x00\x16\x00\x13\x00']
Bad pipe message: %s [b'3']
Bad pipe message: %s [b'\xcb\xbb\x0eXg\xca~+\x92d\xbf\x1b\x16\x8f\x83\x1c\xe7\x9c\x00\x00\xa2\xc0\x14\xc0\n\x009\x008\x007\x006\x00\x88\x00\x87\x00\x86\x00\x85\xc0\x19\x00:\x00\x89\xc0', b'\x05\x005\x00\x84\xc0\x13\xc0\t\x003\x002\x00']
Bad pipe message: %s [b"\xe3\xff\x9b\xb2&h\xfe\xca\xc6\xd5\xb3\xa7\xcc\n\xa4P\t\xe2\x00\x00\x86\xc00\xc0,\xc0(\xc0$\xc0\x14\xc0\n\x00\xa5\x00\xa3\x00\xa1\x00\x9f\x00k\x00j\x00i\x00h\x009\x008\x007\x006\xc02\xc0.\xc0*\xc0&\xc0\x0f\xc0\x05\x00\x9d\x00=\x005\xc0/\xc0+\xc0'\xc0#\xc0\x13\xc0\t\x00\xa4\x00\xa2\x00\xa0\x00\x9e\x00g\x00@\x00?\x00>\x003\x002\x001\x000\xc01\xc0-\xc0)\xc0%\xc0\x0e\xc0\x04\x00\x9c\x00<\x00/\x00\x9a\x00\x99\x00\x98\x00\x97\x00\x96\x00\x07\xc0\x11\xc0\x07\xc0\x0c\xc0\x02\x00\x05\x00\x04\x00\xff\x02\x01\x00\x00g\x00\x00\x00\x0e\x00\x0c\x00\x00\t127.0.0.1\x00\x0b\x00\x04\x03\x00\x01"]
Bad pipe message: %s [b'\x05\xf7#\x11\x0b\xefT\xd0\xbdT\xa6\x89\xd5\xe1', b'\xe6\xfd\x00\x00\xa2\xc0\x14\xc0\n\x009\x008\x007\x006\x00\x88\x00\x87\x00\x86\x00\x85\xc0\x19\x00:\x00\x89\xc0\x0f\xc0\x05\x005\x00\x84\xc0\x13\xc0\t\x003\x002\x001\x000\x00\x9a\x00\x99\x00\x98\x00\x97\x00']
Bad pipe message: %s [b'D\x00C\x00B\xc0\x18\x004\x00\x9b\x00F\xc0\x0e\xc0\x04\x00/\x00\x96\x00A\x00\x07\xc0\x11\xc0\x07\xc0\x16\x00\x18\xc0\x0c\xc0\x02\x00\x05\x00\x04\xc0\x12\xc0\x08\x00\x16\x00\x13\x00\x10\x00\r\xc0\x17\x00\x1b\xc0\r\xc0\x03\x00\n\x00\x15\x00\x12\x00']
Bad pipe message: %s [b'\n']
Bad pipe message: %s [b'0\x00\x9a\x00\x99\x00\x98\x00\x97\x00E\x00D\x00C\x00B\xc0\x18\x004\x00\x9b\x00F\xc0\x0e\xc0\x04\x00/\x00\x96\x00A\x00\x07\xc0\x11\xc0\x07\xc0\x16\x00\x18\xc0\x0c\xc0']
Bad pipe message: %s [b"\xaa\xc0\xaf\xc0\xad\xc0\xa3\xc0\x9f\xc0]\xc0a\xc0W\xc0S\xc0+\xc0/\x00\xa2\x00\x9e\xc0\xae\xc0\xac\xc0\xa2\xc0\x9e\xc0\\xc0`\xc0V\xc0R\xc0$\xc0(\x00k\x00j\xc0s\xc0w\x00\xc4\x00\xc3\xc0#\xc0'\x00g\x00@\xc0r\xc0v\x00\xbe\x00\xbd\xc0\n\xc0\x14\x009\x008\x00\x88\x00\x87\xc0\t\xc0\x13\x003\x002\x00\x9a\x00\x99\x00E\x00D\xc0\x07\xc0\x11\xc0\x08\xc0\x12\x00\x16\x00\x13\x00\x9d\xc0\xa1\xc0\x9d\xc0Q\x00\x9c\xc0\xa0\xc0\x9c\xc0P\x00=\x00\xc0\x00<\x00\xba\x005\x00\x84\x00/\x00\x96\x00A\x00\x05\x00\n\x00\xff\x01\x00\x00j\x00\x00\x00\x0e\x00\x0c\x00\x00\t1"]
Bad pipe message: %s [b'\r\xc0\x17\x00\x1b\xc0\r\xc0\x03\x00\n\x00\x15\x00\x12']
Bad pipe message: %s [b'\x0c\x00\x1a\x00\t\x00\x14\x00\x11\x00\x19\x00\x08\x00']
Bad pipe message: %s [b'.0.0.1\x00\x0b\x00\x04\x03\x00\x01\x02\x00\n\x00\x0c\x00\n\x00\x1d\x00\x17\x00\x1e\x00\x19\x00\x18\x00#\x00\x00\x00\x16\x00\x00\x00\x17\x00\x00\x00\r\x000\x00.\x04', b'\x03\x06', b'\x07\x08']
Bad pipe message: %s [b'\x05']
Bad pipe message: %s [b'\x17\x00\x03\xc0\x10']
Bad pipe message: %s [b'\t\x08\n\x08\x0b\x08\x04']
Bad pipe message: %s [b'\x08\x06\x04\x01\x05\x01\x06', b'', b'\x03\x03']
Bad pipe message: %s [b'']
Bad pipe message: %s [b'', b'\x02']
Bad pipe message: %s [b'\x05\x02\x06']
Uploading test_clean_df.csv (< 1 MB): 705MB [00:11, 63.4MB/s]

[Handler.handle()] Failed to read or parse request from socket: Expecting value: line 1 column 1 (char 0)
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xe4 in position 4: invalid continuation byte
[Handler.handle()] Failed to handle request due to exception class=JSONDecodeError, message=Expecting value: line 1 column 1 (char 0)
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xe4 in position 4: invalid continuation byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xe4 in position 4: invalid continuation byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xe4 in position 4: invalid continuation byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xce in position 13: invalid continuation byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xce in position 13: invalid continuation byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xc0 in position 13: invalid start byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xc0 in position 13: invalid start byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xaf in position 4: invalid start byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xaf in position 4: invalid start byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xa2 in position 12: invalid start byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xa2 in position 12: invalid start byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xaf in position 4: invalid start byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xaf in position 4: invalid start byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xd0 in position 12: invalid continuation byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xd0 in position 12: invalid continuation byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0x92 in position 14: invalid start byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0x92 in position 14: invalid start byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xce in position 4: invalid continuation byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xce in position 4: invalid continuation byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0xb6 in position 12: invalid start byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8' codec can't decode byte 0xb6 in position 12: invalid start byte
[Handler.handle()] Failed to read or parse request from socket: 'utf-8' codec can't decode byte 0x89 in position 4: invalid start byte
[Handler.handle()] Failed to handle request due to exception class=UnicodeDecodeError, message='utf-8'`

It does not seem to depend on what code is being executed and appears transient at times. Is this impacting any of the data or is there a way to silence this message? I note that in some of the messages besides the garbled messages are strings such as "127.0.0.1" which could be related to the server connection. Thanks for your help in debugging this!