master.exec.threads 100 int master execute thread num master.exec.task.num 20 int master execute task number in parallel master.heartbeat.interval 10 int master heartbeat interval master.task.commit.retryTimes 5 int master commit task retry times master.task.commit.interval 1000 int master commit task interval master.max.cpuload.avg 100 int only less than cpu avg load, master server can work. default value : the number of cpu cores * 2 master.reserved.memory 0.3 only larger than reserved memory, master server can work. default value : physical memory * 1/10, unit is G. master.listen.port 5678 int master listen port