Help debugging bad pipe message error

Hi all!

When executing cells in a jupyter notebook in Azure Machine learning the following message is output occasionally in the notebook as well as in the jupyter journalctrl logs:

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. I am trying to track down any possible culprit for this strange error. Any help is greatly appreciated!