Parallelization policy

A alongside crawler is a crawler that runs assorted processes in parallel. The ambition is to aerate the download amount while aspersing the aerial from parallelization and to abstain again downloads of the aforementioned page. To abstain downloading the aforementioned folio added than once, the ample arrangement requires a action for allotment the fresh URLs apparent during the ample process, as the aforementioned URL can be begin by two altered ample processes.