fix #8682 adding libjemalloc as package dependency and setting LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1 in init script
fix #8682 adding libjemalloc as package dependency and setting LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1 in init script