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nacos 2.0版本占用CPU的问题 #4855

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starfounder opened this issue Feb 2, 2021 · 5 comments · Fixed by #4872
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nacos 2.0版本占用CPU的问题 #4855

starfounder opened this issue Feb 2, 2021 · 5 comments · Fixed by #4872
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@shiyiyue1102
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kind/bug Category issues or prs related to bug. version/2.x
Milestone
2.0.0

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@starfounder
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image-20210127133112183
image-20210127154424008
如图所示
排查了之后确定是nacos的问题，一共两个java进程导致cpu炸掉，第一个进程直接关联nacos的pid，另一个查找之后是nacos的服务相关
版本为1月14号更新的版本
@KomachiSion
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能麻烦用arthas抓一下火焰图吗？ 我在mac和linux环境测试是没有问题的。

@starfounder
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能麻烦用arthas抓一下火焰图吗？ 我在mac和linux环境测试是没有问题的。

目前 arthas 的 profiler 命令还不支持在 Windows 下执行，在 Windows 环境下无法用 arthas 抓取信息，有其他的方法吗

@KomachiSion
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window的话我不清楚，看下能否参考linux的

top -p pid -H 找到哪个或哪些线程占用高

jstack pid > stack.log  dump出线程

然后把第一步找到的tid转化成16进制，到stack.log中找一下是哪个线程，把那个线程的信息发出来

@shiyiyue1102
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我们发现是服务端的一个定时线程池的corePoolSize设置为0的问题，会在beta版本中修复

@shiyiyue1102 shiyiyue1102 self-assigned this Feb 4, 2021
@shiyiyue1102 shiyiyue1102 linked a pull request Feb 4, 2021 that will close this issue
move server loader controller from console to core; modify common server scheduler count to solve large cpu usage #4872
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@KomachiSion KomachiSion added kind/bug Category issues or prs related to bug. and removed kind/research os/windows status/need feedback labels Feb 4, 2021
@KomachiSion KomachiSion added this to the 2.0.0 milestone Feb 4, 2021
@KomachiSion KomachiSion mentioned this issue Feb 7, 2021
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@xugcheng
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image
请问这个是什么情况

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2.0.0
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@xugcheng @shiyiyue1102 @KomachiSion @starfounder