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hi,最近在我们hadoop服务器经常会出现cpu系统态很高的情况,用ps,lsof命令都会卡主,直到系统态下降下来,而且这个阶段服务不能用,jstack等命令也会失败。这种问题应该怎么定位?谢谢。一些命令的信息如下:
top - 02:39:27 up 198 days, 10:52, 2 users, load average: 86.56, 86.86, 78.30
Tasks: 1084 total, 1 running, 1083 sleeping, 0 stopped, 0 zombie
Cpu(s): 13.4%us, 28.1%sy, 0.0%ni, 57.8%id, 0.5%wa, 0.0%hi, 0.2%si, 0.0%st
Mem: 132042880k total, 84156596k used, 47886284k free, 101608k buffers
Swap: 0k total, 0k used, 0k free, 11205992k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
36048 yarn 20 0 3287m 86m 20m S 299.8 0.1 88:17.25 java
167536 hdfs 20 0 9508m 6.9g 20m S 205.6 5.5 2564:04 java
36049 yarn 20 0 3286m 84m 20m S 199.7 0.1 58:52.50 java
144076 yarn 20 0 3304m 2.3g 21m S 161.0 1.8 6:28.84 java
166668 yarn 20 0 3334m 1.2g 21m S 106.8 1.0 0:32.06 java
70113 yarn 20 0 10.1g 8.3g 29m S 105.8 6.6 23491:13 java
34484 yarn 20 0 3322m 2.2g 21m S 99.8 1.7 29:37.74 java
35218 yarn 20 0 3326m 1.0g 21m S 99.8 0.8 29:32.63 java
36331 yarn 20 0 3054m 17m 7204 S 99.8 0.0 29:25.47 java
145764 yarn 20 0 3322m 679m 21m S 99.8 0.5 36:21.99 java
167980 yarn 20 0 3309m 124m 20m S 86.6 0.1 0:02.62 java
136557 yarn 20 0 3341m 957m 21m S 85.9 0.7 0:45.94 java
146174 yarn 20 0 3315m 2.2g 21m S 26.8 1.8 1:35.47 java
142868 yarn 20 0 3340m 839m 21m S 24.8 0.7 10:36.11 java
162469 yarn 20 0 3337m 2.2g 21m S 24.1 1.8 0:43.43 java
148214 yarn 20 0 3334m 2.2g 21m S 11.2 1.8 0:41.23 java
134601 yarn 20 0 3329m 2.2g 21m S 10.2 1.8 1:19.23 java
162810 yarn 20 0 3329m 2.2g 21m S 9.3 1.8 0:22.57 java
163040 yarn 20 0 3330m 2.2g 21m S 7.3 1.8 0:20.68 java
67794 yarn 20 0 3334m 650m 21m S 6.0 0.5 5:57.51 java
164884 yarn 20 0 1528m 350m 20m S 3.6 0.3 0:11.53 java
125666 yarn 20 0 3332m 622m 21m S 2.0 0.5 0:20.23 java
146707 yarn 20 0 3334m 646m 21m S 1.7 0.5 0:11.83 java
65216 yarn 20 0 3342m 656m 21m S 1.3 0.5 9:08.50 java
48602 root 20 0 1994m 73m 4840 S 1.0 0.1 3843:55 python
166506 root 20 0 15828 2152 1004 R 1.0 0.0 0:00.27 top
109079 yarn 20 0 1614m 369m 21m S 0.7 0.3 0:24.26 java
150431 yarn 20 0 1625m 380m 21m S 0.7 0.3 0:34.52 java
============================================
iostat -xk 2 100
avg-cpu: %user %nice %system %iowait %steal %idle
13.59 0.00 28.90 0.16 0.00 57.35
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sdh 0.00 0.00 0.00 0.50 0.00 2.00 8.00 0.00 4.00 0.00 4.00 4.00 0.20
sdd 0.00 0.00 5.50 0.00 678.00 0.00 246.55 0.02 3.55 3.55 0.00 2.45 1.35
sdg 0.00 0.00 16.00 0.00 2200.00 0.00 275.00 0.12 7.44 7.44 0.00 4.97 7.95
sdb 0.00 0.00 3.50 0.00 512.00 0.00 292.57 0.00 0.14 0.14 0.00 0.14 0.05
sdc 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sda 0.00 0.00 0.00 3.00 0.00 12.00 8.00 0.00 0.17 0.00 0.17 0.17 0.05
sdj 0.00 0.00 18.00 0.00 2400.00 0.00 266.67 0.03 1.64 1.64 0.00 1.19 2.15
sde 0.00 0.00 0.00 5.00 0.00 142.00 56.80 0.04 8.00 0.00 8.00 1.50 0.75
sdl 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdk 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdi 0.00 0.00 9.50 0.00 1248.00 0.00 262.74 0.03 3.58 3.58 0.00 2.16 2.05
sdf 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
dm-0 0.00 0.00 0.00 3.00 0.00 12.00 8.00 0.00 0.17 0.00 0.17 0.17 0.05
dm-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
dm-2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
======================================================================
[root@xx ~]# sar -n DEV 2 100
Linux 2.6.32-431.el6.x86_64 (s-xiasha-10-2-34-21.hx) 05/08/2017 _x86_64_ (48 CPU)
02:39:44 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
02:39:46 AM lo 15.42 15.42 3.11 3.11 0.00 0.00 0.00
02:39:46 AM eth0 0.50 0.00 0.06 0.00 0.00 0.00 0.50
02:39:46 AM eth1 3429.85 4040.80 3627.96 5247.96 0.00 0.00 0.00
02:39:46 AM eth2 15020.40 3726.37 22142.00 268.66 0.00 0.00 0.00
02:39:46 AM eth3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
02:39:46 AM bond0 18450.25 7767.16 25769.96 5516.63 0.00 0.00 0.00
02:39:46 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
02:39:48 AM lo 6.47 6.47 1.01 1.01 0.00 0.00 0.00
02:39:48 AM eth0 2.49 0.00 0.36 0.00 0.00 0.00 1.99
02:39:48 AM eth1 2001.49 672.14 2801.07 315.40 0.00 0.00 0.00
02:39:48 AM eth2 4785.07 1211.44 6692.13 447.35 0.00 0.00 0.50
02:39:48 AM eth3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
02:39:48 AM bond0 6786.57 1883.58 9493.20 762.75 0.00 0.00 0.50
===========================================================
[root@xx ~]# vmstat 2
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
19 0 0 45197184 101608 11574808 0 0 965 1084 0 0 20 3 77 1 0
23 0 0 44817156 101608 11591660 0 0 8360 1254 58048 16982 15 28 56 0 0
17 0 0 47206472 101608 11595020 0 0 1358 12062 52115 15872 15 29 56 0 0
19 0 0 49350028 101608 11616540 0 0 4 11582 49064 12296 6 29 65 0 0
14 0 0 49311116 101608 11643376 0 0 0 712 52408 11918 6 28 66 0 0
22 0 0 51532064 101612 11695056 0 0 7894 2652 64188 16173 13 31 56 0 0
19 0 0 53186744 101612 11700556 0 0 6 3202 54924 10758 16 30 53 0 0
===============================================================
[root@xx ~]# mpstat -P ALL
Linux 2.6.32-431.el6.x86_64 (s-xiasha-10-2-34-21.hx) 05/08/2017 _x86_64_ (48 CPU)
02:40:34 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
02:40:34 AM all 19.64 0.00 2.25 0.93 0.00 0.28 0.00 0.00 76.91
02:40:34 AM 0 26.13 0.00 8.13 3.36 0.00 12.54 0.00 0.00 49.84
02:40:34 AM 1 26.16 0.00 2.83 6.39 0.00 0.37 0.00 0.00 64.24
02:40:34 AM 2 31.50 0.00 3.77 1.19 0.00 0.04 0.00 0.00 63.51
02:40:34 AM 3 25.06 0.00 2.12 1.18 0.00 0.02 0.00 0.00 71.62
02:40:34 AM 4 29.06 0.00 3.42 1.05 0.00 0.03 0.00 0.00 66.44
02:40:34 AM 5 23.12 0.00 1.89 0.86 0.00 0.02 0.00 0.00 74.11
02:40:34 AM 6 27.04 0.00 3.15 0.91 0.00 0.03 0.00 0.00 68.87
02:40:34 AM 7 21.27 0.00 1.66 0.64 0.00 0.02 0.00 0.00 76.42
02:40:34 AM 8 25.49 0.00 2.91 0.78 0.00 0.02 0.00 0.00 70.79
02:40:34 AM 9 19.66 0.00 1.49 0.49 0.00 0.01 0.00 0.00 78.34
02:40:34 AM 10 24.22 0.00 2.74 0.67 0.00 0.02 0.00 0.00 72.35
02:40:34 AM 11 18.44 0.00 1.40 0.39 0.00 0.01 0.00 0.00 79.76
02:40:34 AM 12 23.15 0.00 2.60 0.58 0.00 0.02 0.00 0.00 73.65
02:40:34 AM 13 17.58 0.00 1.32 0.32 0.00 0.01 0.00 0.00 80.77
02:40:34 AM 14 22.38 0.00 2.50 0.52 0.00 0.02 0.00 0.00 74.59
02:40:34 AM 15 16.83 0.00 1.25 0.28 0.00 0.01 0.00 0.00 81.63
02:40:34 AM 16 21.67 0.00 2.42 0.47 0.00 0.02 0.00 0.00 75.43
02:40:34 AM 17 16.21 0.00 1.23 0.25 0.00 0.01 0.00 0.00 82.30
02:40:34 AM 18 21.09 0.00 2.34 0.43 0.00 0.02 0.00 0.00 76.12
02:40:34 AM 19 15.75 0.00 1.21 0.23 0.00 0.01 0.00 0.00 82.80
02:40:34 AM 20 20.68 0.00 2.31 0.40 0.00 0.01 0.00 0.00 76.59
02:40:34 AM 21 15.45 0.00 1.18 0.22 0.00 0.01 0.00 0.00 83.14
02:40:34 AM 22 21.01 0.00 2.36 0.41 0.00 0.02 0.00 0.00 76.21
02:40:34 AM 23 15.68 0.00 1.20 0.24 0.00 0.01 0.00 0.00 82.88
02:40:34 AM 24 23.90 0.00 6.78 3.68 0.00 0.07 0.00 0.00 65.59
02:40:34 AM 25 16.09 0.00 1.81 3.63 0.00 0.01 0.00 0.00 78.45
02:40:34 AM 26 21.40 0.00 2.97 0.86 0.00 0.02 0.00 0.00 74.75
02:40:34 AM 27 17.62 0.00 3.09 1.84 0.00 0.01 0.00 0.00 77.43
02:40:34 AM 28 20.98 0.00 2.66 0.81 0.00 0.02 0.00 0.00 75.54
02:40:34 AM 29 16.30 0.00 2.39 1.72 0.00 0.01 0.00 0.00 79.57
02:40:34 AM 30 20.09 0.00 2.41 0.75 0.00 0.01 0.00 0.00 76.74
02:40:34 AM 31 15.20 0.00 1.96 1.36 0.00 0.01 0.00 0.00 81.47
02:40:34 AM 32 19.56 0.00 2.23 0.66 0.00 0.01 0.00 0.00 77.54
02:40:34 AM 33 14.73 0.00 1.68 1.02 0.00 0.01 0.00 0.00 82.56
02:40:34 AM 34 19.29 0.00 2.10 0.58 0.00 0.01 0.00 0.00 78.02
02:40:34 AM 35 14.41 0.00 1.50 0.76 0.00 0.01 0.00 0.00 83.32
02:40:34 AM 36 19.13 0.00 2.02 0.51 0.00 0.01 0.00 0.00 78.34
02:40:34 AM 37 14.18 0.00 1.38 0.57 0.00 0.01 0.00 0.00 83.86
02:40:34 AM 38 19.04 0.00 1.96 0.46 0.00 0.01 0.00 0.00 78.53
02:40:34 AM 39 14.04 0.00 1.29 0.45 0.00 0.01 0.00 0.00 84.21
02:40:34 AM 40 19.04 0.00 1.91 0.41 0.00 0.01 0.00 0.00 78.63
02:40:34 AM 41 13.93 0.00 1.25 0.37 0.00 0.01 0.00 0.00 84.45
02:40:34 AM 42 19.09 0.00 1.90 0.37 0.00 0.01 0.00 0.00 78.62
02:40:34 AM 43 13.93 0.00 1.21 0.32 0.00 0.01 0.00 0.00 84.54
02:40:34 AM 44 19.07 0.00 1.88 0.35 0.00 0.01 0.00 0.00 78.69
02:40:34 AM 45 14.05 0.00 1.20 0.28 0.00 0.01 0.00 0.00 84.46
02:40:34 AM 46 19.15 0.00 1.88 0.35 0.00 0.01 0.00 0.00 78.61
02:40:34 AM 47 13.98 0.00 1.20 0.26 0.00 0.01 0.00 0.00 84.55
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