题目内容
（请给出正确答案）
A.topology请求的memory过多，导致分配不出需要的内存
B.supervisor机器的磁盘满了，不能写日志
C.jvm参数设置不正确(比如-Xmn＞-Xmx，使用了对应jdk不支持的JVM参数等)
D.jar包冲突
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更多“Storm提交topology后task状态一直是start…”相关的问题
A.当一个worker挂掉supervisor将负责重启它
B.主机故障,任务将被nimbus重新分配
C.nimbus和supervisor挂掉会自动重启
D.nimbus和supervisor是无状态的
An aneroid barometer is an instrument ______.
A.used to measure the speed of wind
B.in which the pressure of air is measured
C.that tells which direction a storm is coming from
D.used to measure the height of waves
The purpose of a dummy activity in an activity-on-arrow diagram is to:
A.Identify a task that could be replaced by another.
B.Take the slack time into account.
C.Show a task that is not necessarily needed.
D.Denote a milestone.
E.Show a dependency relationship.
