Whilereviewingthehacmp.outafteranodefailure，anadministratorrealizesthatthecustomEventqueue_downdidnotexecute.Thequeue_downeventshowsupwhenalistofcustomeventsisdisplayed.Whatwouldbethenextlogicalsteptoresolvethisproblem？（）
A.Deletethecustomeventandaddapreeventandsynchronize.
B.Synchronizetheclusterandrechecktheclustercustomevents.
C.Createanapplicationserverthatwillstopandstartthequeues.
D.Addapreorposteventtoappropriateclustereventsandsynchronize.
参考答案：D
