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While working on the ethereum , I come out with the issue of out of memory because of multiple transaction execution concurrently . The main reason was , i was unlocking account of that user every time which take too much of memory , if i do contract function execute (transaction) without unlocking the account in code and unlock account in geth by
and then run transaction it execute smoothly over 500 transaction / sec . How can i unlock account everytime or give me better solution how to unlock account so that i can overcome with out off memory problem ?