Feature: enable faster server-server copies by enabling ComposeObject with --part-size and --parallel#2175
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Overview
I have a fast k8s on prem cluster and have proposed adding
--part-sizeand--parallelflags for supporting fast streaming (copy) of large files >= 5TB in PR 5257 on mc cli repoFrom that PR I discovered the server-server copy methods don't have configurable
--part-sizeor--parallel. This means I can configuremc cpfor very large files but ironically have less control for smaller ones < 5TB.This PR enables ComposeObject to be configurable by equivalent args
PartSizeandNumThreads(--parallel).