high server load - K6-2 / Redhat 7.2
. It does respond to pings and open connections to ports but no answers such as login prompt are displayed. Before the upgrade I didn't have such problems. There is nothing in the logs. I started "procinfo -d -n 30" and noticed there is something wrong with the load average. Short before:
Code:
Linux 2.4.18i386 (root@72builder) (gcc 2.96 20000731 ) #1 1CPU [test] Memory: Total Used Free Shared Buffers Cached Mem: 0 206 -206 0 4 7 Swap: 0 0 0 Bootup: Sat Jul 13 16:40:56 2002 Load average: 0.38 0.49 0.51 1/129 5634 user :0:00:07.61 25.4% page in :180 disk 1:22r67w nice : 0:00:00.00 0.0% page out:1750 system:0:00:01.49 5.0% swap in :0 idle : 0:00:20.90 69.7% swap out: 0 uptime:17:21:35.19 context : 3181 irq 0:3000 timer irq 8: 0 rtc irq 1: 0 keyboard irq 9: 4808 eth0 irq 2: 0 cascade [4]irq 14:1004 ide0 irq 4:0 serial irq 15:2856 ide1
Code:
10:06am up 17:25, 4 users, load average: 0.84, 0.58, 0.53 141 processes: 137 sleeping, 4 running, 0 zombie, 0 stopped CPU states: 27.8% user, 5.8% system, 0.0% nice, 66.2% idle Mem: 256116K av, 249688K used, 6428K free,0K shrd, 15916K buff Swap: 524464K av, 28088K used, 496376K free 76420K cached. PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND 5869 nobody 9 0 5396 4904 2344 S 5.5 1.9 0:01 httpd 2686 nobody 9 0 5524 5260 2752 S 4.4 2.0 0:10 httpd 2578 nobody 9 0 5600 5452 2868 S 4.2 2.1 0:20 httpd 2576 nobody 9 0 6048 5848 2820 S 2.2 2.2 0:11 httpd 2952 nobody 15 0 6304 6136 2860 R 2.2 2.3 0:20 httpd 3282 nobody 9 0 5628 5452 2816 S 2.0 2.1 0:10 httpd 1704 nobody 9 0 5272 5104 2836 S 1.7 1.9 0:21 httpd 3284 nobody 10 0 5452 5276 2840 S 1.7 2.0 0:14 httpd 5871 mysql 9 0 43196 19M 1864 S 1.4 7.8 0:00 mysqld 2684 mysql 9 0 43196 19M 1864 S 0.5 7.8 0:01 mysqld 3658 nobody 10 0 5704 5440 2756 S 0.5 2.1 0:11 httpd
Code:
Linux 2.4.18i386 (root@72builder) (gcc 2.96 20000731 ) #1 1CPU [test] Memory:Total Used Free Shared Buffers Cached Mem: 0 0 0 0 0 0 Swap: 0 0 0 Bootup: Sat Jul 13 16:40:56 2002 Load average: 119.84 110.66 78.51 1/234 5986 user : 0:00:00.00 0.0% page in : 0 disk 1: 0r 0w nice : 0:00:00.00 0.0% page out: 0 system: 0:00:00.04 0.1% swap in : 0 idle : 0:00:29.96 99.9% swap out: 0 uptime: 17:48:05.19 context : 1360 irq 0: 3000 timer irq 8: 0 rtc irq 1: 153 keyboard irq 9: 5115 eth0 irq 2: 0 cascade [4] irq 14: 0 ide0 irq 4: 0 serial irq 15: 0 ide1
The server load is extremly high and the cpu usage is only 0.01%. The only solution I found was to reboot the server.
What could be the reason of such behavior?
