Richard Oudkerk added the comment:
Why are you connecting to a multiprocessing listener with a raw socket? You
should be using multiprocessing.connection.Client to create a client connection.
Connection.send(obj) writes a 32 bit unsigned int (in network order) to the
socket representing the length of the pickled data for obj, followed by the
pickled data itself.
Since you are doing a raw socket write, the server connection is
misenterpreting the first 4 bytes of your message "abcd" as the length of the
message. So the receiving end needs to allocate space for
struct.unpack("!I", "abcd")[0] == 1633837924 ~ 1.5Gb
causing the MemoryError.
----------
nosy: +sbt
resolution: -> invalid
stage: -> committed/rejected
status: open -> closed
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<http://bugs.python.org/issue16920>
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