I don't have an example to show. I referred some online site, but didn't find anything that met my requirement. Please anyone give me an example to use.

There are multiple options. I would try:

• instead of large array, try to get a generator or iterator which would provide items one by one. This could save you memory in sending process (but is is not necessary, if you can live with whole array in memory)
• do not use plain sockets, use ZeroMQ (which runs on top of it).
• define a protocol for sending the array. Assuming the array is flat, it can go with following types of messages:
  • startarray
  • itemdata
  • endarray
• loop over items to send and send them as one by one, before sending "startarray" message, then one item by one, finally closing by "endarray" message
• for transfer over TCP, you need to pick some serializatio format. I would start with JSON.
• sender could use ZMQ socket of type PUSH, receiver would be using PULL.