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Forum Index Thảo luận hệ điều hành *nix Sever Centos 5.8 64bit tải rất cao - không rõ nguyên nhân.  XML
  [Question]   Sever Centos 5.8 64bit tải rất cao - không rõ nguyên nhân. 18/09/2012 09:59:55 (+0700) | #1 | 269469
Mahoa
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Joined: 06/07/2006 20:39:38
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Gửi các bạn,

Server của mình mấy hôm nay tải rất cao lên đến hơn 50%. Nhiều lúc mình không thể kết nối FTP đc và SSH đc, web thì vào rất chậm. Trong khi trước đó chỉ có 0.1%.

Mình đã khởi động lại máy chủ , tuy nhiên sau 30 phút tải lên rất cao.

Lượng truy cập bình thường.

Mình không tìm ra được nguyên nhân. Mong các bạn giúp. Đây là các file log.


10:52:36 up 32 min, 1 user, load average: 75.58, 29.90, 19.15

Code:
top - 10:52:33 up 32 min,  1 user,  load average: 75.58, 29.90, 19.15
Tasks: 444 total,   2 running, 442 sleeping,   0 stopped,   0 zombie
Cpu(s): 14.1%us,  4.3%sy,  0.0%ni, 27.6%id, 51.9%wa,  0.2%hi,  1.9%si,  0.0%st
Mem:   3954656k total,  2520960k used,  1433696k free,    93524k buffers
Swap:  5996536k total,        0k used,  5996536k free,   578564k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                    
  285 root      15   0     0    0    0 D  0.0  0.0   0:00.36 pdflush                                                                                                    
  554 root      10  -5     0    0    0 D  0.0  0.0   0:07.04 kjournald                                                                                                  
 5278 apache    15   0  325m  24m 4284 D  0.0  0.6   0:01.65 httpd                                                                                                      
 5287 apache    15   0  323m  21m 4304 D  0.0  0.6   0:01.40 httpd                                                                                                      
 5292 apache    15   0  318m  17m 4484 D  0.0  0.5   0:01.86 httpd                                                                                                      
 5436 apache    15   0  325m  24m 4496 D  0.0  0.6   0:01.19 httpd                                                                                                      
 5482 apache    15   0  319m  18m 4512 D  0.0  0.5   0:01.86 httpd                                                                                                      
 5508 apache    15   0  325m  24m 4496 D  0.0  0.6   0:01.01 httpd                                                                                                      
 5512 apache    15   0  317m  16m 4372 D  0.0  0.4   0:00.99 httpd                                                                                                      
 5550 apache    15   0  318m  17m 4500 D  0.0  0.5   0:01.11 httpd                                                                                                      
 5629 apache    15   0  315m  14m 4072 D  0.0  0.4   0:00.92 httpd                                                                                                      
 5631 apache    16   0  316m  15m 3944 D  0.0  0.4   0:00.72 httpd                                                                                                      
 5634 apache    15   0  316m  15m 4176 D  0.0  0.4   0:00.34 httpd                                                                                                      
 5635 apache    15   0  323m  21m 4220 D  0.0  0.6   0:00.56 httpd                                                                                                      
 5638 apache    15   0  316m  14m 4160 D  0.0  0.4   0:00.43 httpd                                                                                                      
 5643 apache    15   0  314m  13m 4176 D  0.0  0.3   0:00.49 httpd                                                                                                      
 5646 apache    15   0  318m  16m 4176 D  0.0  0.4   0:00.29 httpd                                                                                                      
 5650 apache    16   0  317m  16m 4140 D  0.0  0.4   0:00.49 httpd                                                                                                      
 5653 apache    15   0  317m  17m 4916 D  0.0  0.4   0:00.41 httpd                                                                                                      
 5654 apache    15   0  316m  14m 4064 D  0.0  0.4   0:00.43 httpd                                                                                                      
 5657 apache    15   0  323m  22m 4340 D  0.0  0.6   0:00.38 httpd                                                                                                      
 5658 apache    15   0  323m  21m 3892 D  0.0  0.6   0:00.17 httpd                                                                                                      
 5662 apache    15   0  318m  16m 4064 D  0.0  0.4   0:00.37 httpd                                                                                                      
 5664 apache    15   0  316m  15m 4276 D  0.0  0.4   0:00.56 httpd                                                                                                      
 5665 apache    16   0  321m  19m 4228 D  0.0  0.5   0:00.49 httpd                                                                                                      
 5667 apache    15   0  323m  21m 4128 D  0.0  0.6   0:00.50 httpd                                                                                                      
 5671 apache    15   0  325m  24m 3856 D  0.0  0.6   0:00.21 httpd                                                                                                      
 5673 apache    15   0  321m  20m 4064 D  0.0  0.5   0:00.25 httpd                                                                                                      
 5674 apache    15   0  316m  15m 4332 D  0.0  0.4   0:00.24 httpd                                                                                                      
 5677 apache    15   0  317m  16m 4028 D  0.0  0.4   0:00.16 httpd                                                                                                      
 5680 apache    15   0  316m  15m 4136 D  0.0  0.4   0:00.34 httpd                                                                                                      
 5685 apache    15   0  316m  14m 3912 D  0.0  0.4   0:00.14 httpd                                                                                                      
 5688 apache    15   0  317m  15m 3900 D  0.0  0.4   0:00.20 httpd                                                                                                      
 5689 apache    15   0  317m  14m 3844 D  0.0  0.4   0:00.06 httpd                                                                                                      
 5690 apache    15   0  315m  14m 3988 D  0.0  0.4   0:00.19 httpd                                                                                                      
 5693 apache    15   0  317m  14m 3836 D  0.0  0.4   0:00.03 httpd                                                                                                      
 5696 apache    15   0  316m  14m 4004 D  0.0  0.4   0:00.05 httpd                                                                                                      
 5697 apache    15   0  316m  15m 4128 D  0.0  0.4   0:00.29 httpd                                                                                                      
 5699 apache    15   0  316m  15m 4032 D  0.0  0.4   0:00.13 httpd                                                                                                      
 5700 apache    15   0  313m  12m 3896 D  0.0  0.3   0:00.27 httpd                                                                                                      
 5702 apache    15   0  314m  11m 3720 D  0.0  0.3   0:00.34 httpd                                                                                                      
 5703 apache    15   0  312m 9604 2916 D  0.0  0.2   0:00.02 httpd                                                                                                      
 5704 apache    15   0  316m  14m 3904 D  0.0  0.4   0:00.18 httpd                                                                                                      
 5705 apache    15   0  317m  16m 4152 D  0.0  0.4   0:00.19 httpd                                                                                                      
 5710 apache    15   0  314m  12m 3480 D  0.0  0.3   0:00.02 httpd                                                                                                      
 5711 apache    15   0  317m  15m 4144 D  0.0  0.4   0:00.19 httpd                                                                                                      
 5713 apache    15   0  316m  14m 3808 D  0.0  0.4   0:00.04 httpd                                                                                                      
 5714 apache    15   0  317m  15m 3928 D  0.0  0.4   0:00.12 httpd                                                                                                      
 5715 apache    15   0  317m  14m 3868 D  0.0  0.4   0:00.07 httpd                                                                                                      
 5716 apache    15   0  314m  12m 4084 D  0.0  0.3   0:00.11 httpd                                                                                                      
 5719 apache    15   0  315m  13m 3920 D  0.0  0.3   0:00.08 httpd                                                                                                      
 5720 apache    15   0  317m  14m 3844 D  0.0  0.4   0:00.03 httpd                                                                                                      
 5723 apache    15   0  315m  14m 3928 D  0.0  0.4   0:00.14 httpd                                                                                                      
 5725 apache    15   0  322m  20m 3784 D  0.0  0.5   0:00.09 httpd                                                                                                      
 5728 apache    16   0  315m  13m 3936 D  0.0  0.4   0:00.23 httpd                                                                                                      
 5731 apache    15   0  317m  15m 3896 D  0.0  0.4   0:00.13 httpd                                                                                                      
 5732 apache    15   0  315m  14m 4000 D  0.0  0.4   0:00.16 httpd                                                                                                      
 5734 apache    15   0  321m  19m 3992 D  0.0  0.5   0:00.12 httpd                                                                                                      
 5737 apache    15   0  314m  11m 3456 D  0.0  0.3   0:00.05 httpd                                                                                                      
 5738 apache    15   0  312m  10m 3696 D  0.0  0.3   0:00.06 httpd                                                                                                      
 5745 apache    15   0  316m  15m 4092 D  0.0  0.4   0:00.31 httpd                                                                                                      
 5748 apache    15   0  318m  16m 3992 D  0.0  0.4   0:00.17 httpd                                                                                                      
 5750 apache    15   0  317m  15m 3840 D  0.0  0.4   0:00.06 httpd                                                                                                      
 5751 apache    15   0  315m  14m 3904 D  0.0  0.4   0:00.20 httpd                                                                                                      
 5757 apache    15   0  316m  14m 3840 D  0.0  0.4   0:00.06 httpd                                                                                                      
 5758 apache    15   0  314m  12m 3688 D  0.0  0.3   0:00.06 httpd                                                                                                      
 5759 apache    15   0  316m  14m 3912 D  0.0  0.4   0:00.14 httpd                                                                                                      
 5760 apache    15   0  316m  14m 4128 D  0.0  0.4   0:00.25 httpd                                                                                                      
 5761 apache    15   0  316m  14m 3936 D  0.0  0.4   0:00.23 httpd                                                                                                      
 5762 apache    15   0  316m  14m 4056 D  0.0  0.4   0:00.19 httpd                                                                                                      
 5763 apache    15   0  315m  14m 4060 D  0.0  0.4   0:00.23 httpd                                                                                                      
 5764 apache    15   0  315m  13m 3924 D  0.0  0.4   0:00.14 httpd                                                                                                      
 5775 apache    20   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5776 apache    21   0  311m 9308 2836 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5777 apache    20   0  311m 7796 1516 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5778 apache    15   0  320m  19m 3888 D  0.0  0.5   0:00.16 httpd                                                                                                      
 5780 apache    21   0  311m 7788 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5781 apache    22   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5782 apache    24   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5783 apache    25   0  316m  14m 3588 D  0.0  0.4   0:00.02 httpd                                                                                                      
 5785 apache    25   0  313m  11m 3576 D  0.0  0.3   0:00.06 httpd                                                                                                      
 5786 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5787 apache    21   0  312m 9348 2844 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5788 apache    21   0  311m 9312 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5789 apache    22   0  311m 9312 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5790 apache    21   0  311m 9312 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5791 apache    24   0  314m  12m 3700 D  0.0  0.3   0:00.02 httpd                                                                                                      
 5792 apache    25   0  314m  12m 3700 D  0.0  0.3   0:00.02 httpd                                                                                                      
 5793 apache    20   0  317m  15m 3664 D  0.0  0.4   0:00.03 httpd                                                                                                      
 5795 apache    21   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5796 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5797 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5798 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5799 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5800 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5801 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5802 apache    20   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5803 apache    18   0  312m 9164 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5804 apache    19   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5805 apache    23   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5806 apache    24   0  311m 7788 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5807 apache    17   0  315m  13m 3860 D  0.0  0.4   0:00.07 httpd                                                                                                      
 5808 apache    25   0  312m 9164 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5809 apache    25   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5810 apache    25   0  312m 9172 2712 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5814 apache    25   0  312m 9164 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5815 apache    23   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5816 apache    25   0  311m 9348 2880 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5817 apache    25   0  313m  11m 3576 D  0.0  0.3   0:00.05 httpd                                                                                                      
 5818 apache    24   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5819 apache    25   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5820 apache    25   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5821 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5822 apache    17   0  316m  14m 3516 D  0.0  0.4   0:00.02 httpd                                                                                                      
 5823 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5824 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5825 apache    25   0  320m  18m 3616 D  0.0  0.5   0:00.03 httpd                                                                                                      
 5826 apache    25   0  311m 7800 1520 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5827 apache    25   0  315m  12m 3504 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5828 apache    17   0  313m  12m 3796 D  0.0  0.3   0:00.04 httpd                                                                                                      
 5829 apache    25   0  311m 9316 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5830 apache    25   0  311m 7756 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5831 apache    25   0  311m 9308 2844 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5832 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5833 apache    25   0  311m 9316 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5834 apache    20   0  312m 9340 2844 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5835 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5836 apache    18   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5837 apache    22   0  311m 9308 2836 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5838 apache    18   0  316m  14m 3592 D  0.0  0.4   0:00.04 httpd                                                                                                      
 5839 apache    22   0  311m 9300 2828 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5840 apache    22   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5841 apache    22   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5842 apache    22   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5843 apache    22   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5844 apache    22   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5845 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5846 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5847 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5848 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5849 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5850 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5851 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5852 apache    20   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5853 apache    25   0  312m 9340 2840 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5854 apache    20   0  316m  14m 3612 D  0.0  0.4   0:00.03 httpd                                                                                                      
 5855 apache    25   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5856 apache    20   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5857 apache    20   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5858 apache    15   0  316m  14m 3676 D  0.0  0.4   0:00.03 httpd                                                                                                      
 5859 apache    25   0  312m 9164 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5860 apache    25   0  312m 9164 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5861 apache    20   0  311m 7812 1524 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5862 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5863 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5864 apache    25   0  311m 9312 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5865 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5866 apache    19   0  311m 9352 2880 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5867 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5868 apache    21   0  311m 7788 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5869 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5870 apache    23   0  312m 9340 2844 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5871 apache    25   0  311m 9308 2836 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5876 apache    25   0  312m 9156 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5877 apache    25   0  312m 9168 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5878 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5879 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5880 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5881 apache    25   0  311m 7788 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5882 apache    25   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5883 apache    25   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5884 apache    25   0  312m 9324 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5885 apache    25   0  312m 9320 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5886 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5887 apache    25   0  312m 9320 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5888 apache    25   0  312m 9188 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5889 apache    25   0  313m  11m 3316 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5890 apache    25   0  312m 9160 2708 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5891 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5892 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5893 apache    25   0  312m 9388 2884 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5894 apache    25   0  312m 9356 2840 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5895 apache    25   0  317m  15m 3628 D  0.0  0.4   0:00.04 httpd                                                                                                      
 5896 apache    25   0  312m 9336 2840 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5897 apache    25   0  311m 7792 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5898 apache    19   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5899 apache    20   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5900 apache    21   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5901 apache    23   0  314m  11m 3428 D  0.0  0.3   0:00.02 httpd                                                                                                      
 5902 apache    24   0  312m 9344 2872 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5903 apache    24   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5904 apache    20   0  311m 9356 2884 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5905 apache    20   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5906 apache    25   0  312m 9348 2872 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5907 apache    25   0  312m 9360 2880 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5908 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5909 apache    25   0  312m 9320 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5910 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5911 apache    17   0  313m  11m 3292 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5912 apache    18   0  313m  12m 3780 D  0.0  0.3   0:00.04 httpd                                                                                                      
 5913 apache    25   0  313m  11m 3292 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5914 apache    25   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5915 apache    23   0  314m  12m 3344 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5916 apache    18   0  314m  12m 3764 D  0.0  0.3   0:00.03 httpd                                                                                                      
 5917 apache    15   0  316m  14m 3860 D  0.0  0.4   0:00.15 httpd                                                                                                      
 5918 apache    25   0  313m  11m 3292 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5919 apache    25   0  313m  11m 3292 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5920 apache    25   0  311m 9356 2880 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5921 apache    24   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5922 apache    25   0  311m 9272 2808 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5923 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5924 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5925 apache    25   0  313m  11m 3292 D  0.0  0.3   0:00.02 httpd                                                                                                      
 5926 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5927 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5928 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5929 apache    23   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5930 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5931 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5932 apache    21   0  313m  11m 3292 D  0.0  0.3   0:00.02 httpd                                                                                                      
 5933 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5934 apache    23   0  311m 7784 1504 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5935 apache    23   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5936 apache    23   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5937 apache    17   0  313m  11m 3292 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5938 apache    23   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5939 apache    15   0  313m  11m 3592 D  0.0  0.3   0:00.04 httpd                                                                                                      
 5940 apache    25   0  314m  11m 3376 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5941 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5942 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5943 apache    24   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5944 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5945 apache    23   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5946 apache    24   0  312m 9360 2884 D  0.0  0.2   0:00.14 httpd                                                                                                      
 5947 apache    24   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5948 apache    24   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5949 apache    25   0  313m  11m 3292 D  0.0  0.3   0:00.01 httpd                                                                                                      
 5950 apache    24   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5951 apache    24   0  315m  13m 3296 D  0.0  0.3   0:00.02 httpd                                                                                                      
 5952 apache    22   0  312m 9400 2888 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5953 apache    24   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5954 apache    22   0  312m 9320 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5955 apache    22   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5956 apache    19   0  312m 9360 2884 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5957 apache    22   0  312m 9352 2876 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5958 apache    23   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5959 apache    23   0  312m 9320 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5960 apache    23   0  312m 9312 2844 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5961 apache    19   0  312m 9360 2884 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5962 apache    18   0  312m 9320 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5963 apache    18   0  312m 9312 2844 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5964 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5965 apache    19   0  312m 9312 2844 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5966 apache    18   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5967 apache    16   0  317m  14m 3612 D  0.0  0.4   0:00.07 httpd                                                                                                      
 5968 apache    25   0  312m 9172 2712 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5969 apache    24   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5970 apache    25   0  311m 7788 1508 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5971 apache    24   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5972 apache    23   0  316m  14m 3548 D  0.0  0.4   0:00.02 httpd                                                                                                      
 5973 apache    25   0  312m 9168 2712 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5974 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5975 apache    25   0  311m 7756 1488 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5976 apache    25   0  311m 7752 1484 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5977 apache    22   0  312m 9352 2876 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5978 apache    22   0  312m 9324 2852 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5979 apache    22   0  312m 9368 2892 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5980 apache    25   0  311m 7804 1524 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5981 apache    22   0  312m 9184 2724 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5982 apache    24   0  311m 7804 1524 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5983 apache    23   0  312m 9172 2724 D  0.0  0.2   0:00.00 httpd                                                                                                      
 5984 apache    22   0  311m 7836 1544 D  0.0  0.2   0:00.00 httpd                                                                                                      
Total status D (I/O wait probably): 272


Code:
top - 10:59:19 up 39 min,  1 user,  load average: 8.05, 17.27, 18.16
Tasks: 184 total,   2 running, 182 sleeping,   0 stopped,   0 zombie
Cpu(s): 14.5%us,  4.4%sy,  0.0%ni, 27.3%id, 51.8%wa,  0.2%hi,  1.8%si,  0.0%st
Mem:   3954656k total,  1578028k used,  2376628k free,    98576k buffers
Swap:  5996536k total,        0k used,  5996536k free,   579636k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 2429 root      10  -5     0    0    0 R  4.0  0.0   2:02.10 kondemand/2
  285 root      15   0     0    0    0 D  0.0  0.0   0:00.45 pdflush
  554 root      10  -5     0    0    0 D  0.0  0.0   0:09.06 kjournald
 2363 root      16   0  5924  620  500 D  0.0  0.0   0:00.04 syslogd
 5674 apache    15   0  320m  19m 4548 D  0.0  0.5   0:01.27 httpd
 5778 apache    15   0  321m  19m 4276 D  0.0  0.5   0:00.88 httpd
 6236 apache    16   0  322m  21m 4156 D  0.0  0.6   0:00.33 httpd
 6238 apache    15   0  317m  16m 4432 D  0.0  0.4   0:00.82 httpd
 6255 apache    15   0  317m  15m 4040 D  0.0  0.4   0:00.31 httpd
 6279 root      15   0 12752 1032  720 R  0.0  0.0   0:00.00 top





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  [Question]   Sever Centos 5.8 64bit tải rất cao - không rõ nguyên nhân. 18/09/2012 10:07:42 (+0700) | #2 | 269470
Mahoa
Member

[Minus]    0    [Plus]
Joined: 06/07/2006 20:39:38
Messages: 56
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Bổ sung thêm:

Code:
[root@www2 ~]# netstat -n | grep :80 |wc -l
2587
[root@www2 ~]# netstat -n | grep :80 | grep SYN_RECV|wc -l
3
[root@www2 ~]# netstat -an|grep :80 |awk '{print $5}'|cut -d":" -f1|sort|uniq -c|sort -rn
   1996 127.0.0.1
     24 183.91.31.19
     19 113.52.48.48
     19 113.165.166.149
     17 123.23.242.50
     13 171.247.183.113
     13 115.73.76.170
     12 113.165.49.102
     11 203.205.44.149
     10 115.77.234.228
     10 113.52.48.47
     10 113.52.48.16
     10 113.172.85.163
      9 222.254.146.189
      7 42.117.72.168
      7 123.23.16.135
      6 42.119.199.251
      6 27.79.22.13
      6 1.54.24.31
      6 1.53.166.135
      6 117.5.140.48
      6 115.79.202.107
      6 113.22.125.105
      6 113.190.62.109
      6 113.180.80.227
      6 113.172.133.236
      6 113.169.245.125
      6 113.165.98.140
      6 113.161.176.231
      5 118.68.166.251
      4 222.254.149.59
      4 171.240.51.107
      4 123.28.160.27
      4 123.26.248.254
      4 123.21.49.40
      4 115.74.27.124
      4 113.190.137.227
      4 113.161.161.49
      3 60.169.78.174
      3 60.169.75.148
      3 42.118.41.196
      3 123.19.160.68
      3 123.17.241.251
      2 222.253.155.241
      2 208.115.111.75
      2 14.161.0.65
      2 117.6.130.144
      2 113.162.189.4
      2 113.161.85.110
      2 113.160.154.156
      2 0.0.0.0
      1 68.68.108.202
      1 66.54.88.133
      1 66.249.69.242
      1 66.220.147.251
      1 42.118.74.6
      1 210.245.87.53
      1 188.143.232.211
      1 141.0.8.37
      1 123.21.94.67
      1 118.71.25.113
      1 118.69.133.240
      1 118.68.246.200
      1 118.68.196.6
      1 115.76.170.82
      1 115.73.53.71
      1 113.178.35.76
      1 113.169.54.242
      1 101.99.34.14


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  [Question]   Sever Centos 5.8 64bit tải rất cao - không rõ nguyên nhân. 06/10/2012 19:46:42 (+0700) | #3 | 269946
[Avatar]
quanta
Moderator

Joined: 28/07/2006 14:44:21
Messages: 7265
Location: $ locate `whoami`
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Code:
top - 10:52:33 up 32 min,  1 user,  load average: 75.58, 29.90, 19.15
Tasks: 444 total,   2 running, 442 sleeping,   0 stopped,   0 zombie
Cpu(s): 14.1%us,  4.3%sy,  0.0%ni, 27.6%id, 51.9%wa,  0.2%hi,  1.9%si,  0.0%st

Wait IO cao (51.9%).
Code:
285  root      15   0     0    0    0 D  0.0  0.0   0:00.36 pdflush
554  root      10  -5     0    0    0 D  0.0  0.0   0:07.04 kjournald
5278 apache    15   0  325m  24m 4284 D  0.0  0.6   0:01.65 httpd

Apache bị D state (uninterruptible sleep).
Let's build on a great foundation!
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