perf bug fix: Reinitialze chunked buffer on reset so previous memory gets garbage collected.
perf bug fix: Reinitialze chunked buffer on reset so previous memory gets garbage collected.

nso95/vitess,fanngyuan/vitess,fanngyuan/vitess,fanngyuan/vitess,nso95/vitess,nso95/vitess,nso95/vitess,fanngyuan/vitess,nso95/vitess,fanngyuan/vitess