workman strace busy進(jìn)程

iqige 更新于2019-09-12

追蹤結(jié)果如下：

rt_sigreturn({mask=[]}) = 45
11:17:51.166205 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:52.166381 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:52.166429 rt_sigreturn({mask=[]}) = 45
11:17:52.166525 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:53.169452 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:53.169524 rt_sigreturn({mask=[]}) = 45
11:17:53.169612 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:54.169915 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:54.169967 rt_sigreturn({mask=[]}) = 45
11:17:54.170040 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:55.167907 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:55.168112 rt_sigreturn({mask=[]}) = 45
11:17:55.168265 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:56.170834 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:56.170961 rt_sigreturn({mask=[]}) = 45
11:17:56.171059 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:57.171275 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:57.171352 rt_sigreturn({mask=[]}) = 45
11:17:57.171414 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:58.172128 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:58.172193 rt_sigreturn({mask=[]}) = 45
11:17:58.172242 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:17:59.172539 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0} ---
11:17:59.172634 rt_sigreturn({mask=[]}) = 45
11:17:59.172709 recvfrom(6, 0x7f8dbea58018, 655350, 0, NULL, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
11:18:00.172508 --- SIGUSR2 {si_signo=SIGUSR2, si_code=SI_USER, si_pid=18243, si_uid=0}

請問下，這是什么問題？
利用lsof -nPp -pid的話，顯示最后一步是訪問別的服務(wù)器的3306端口來著

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1個回答

global_zm 2019-09-12

考慮下sql域名執(zhí)行太久，或者看下mysql的負(fù)載是不是太高，遲遲得不到響應(yīng)

iqige 2019-09-12

我剛才查了一下，估計(jì)是問題是出在Mysql上了
global_zm 2019-09-12

前不久剛好遇到過這個問題，當(dāng)時我們這邊兩外一個項(xiàng)目組把數(shù)據(jù)庫實(shí)例cpu拉到了100%，于是我們這不就大量的busy，發(fā)現(xiàn)都是3306的。