Reverse massive text file in Java -

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what best approach reverse large text file uploaded asynchronously servlet reverses file in scalable , efficient way?

  • text file can massive (gigabytes long)
  • can assume mulitple server/clustered environment in distributed manner.
  • open source libraries encouraged consider

i thinking of using java nio treat file array on disk (so don't have treat file string buffer in memory). also, thinking of using mapreduce break file , process in separate machines.

if uploaded , can length @ beginning, create empty full-sized file front , write starting , working way front using seek

you'd want define block size (like 1k?) , reverse in memory before writing out file.


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