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iowait的CPU利用率是否仅在节点停用的初始阶段增加?

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适用场景

问题解答

不会、iowait 的CPU利用率不会仅在节点停用的初始阶段增加。在整个过程中、这一问题仍然很高。

追加信息

 
在停用期间、此特定节点的iowait 的CPU利用率最多会增加5倍(从10%增加到50%)、这表明磁盘系统成为瓶颈。
sum by (mode)(irate(node_cpu_seconds_total{instance="issued storage node name",mode!~'idle|guest|nice'}[5m])) * 100 / count by (mode)(node_cpu_seconds_total{instance="issued storage node name",mode!~'idle|guest|nice'})
ServiceUnavailable失败
 
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