The server usually works very quiet but http processes sometimes peak out.
I checked the httpd process by the command "netstat -np |grep httpd"
When the server is normal, the reslut is like below.
# netstat -np |grep httpd
tcp 0 5988 ::ffff:74.5.*.121:80 ::ffff:112.*.48.*:3709 FIN_WAIT1 13599/httpd
tcp 0 12488 ::ffff:74.5.*.121:80 ::ffff:112.*.48.*:3707 FIN_WAIT1 17013/httpd
tcp 0 0 ::ffff:74.5.*.116:80 ::ffff:93.*.93.*:37910 ESTABLISHED 18392/httpd
tcp 0 0 ::ffff:74.5.*.117:80 ::ffff:118.*.9.*:52982 ESTABLISHED 18384/httpd
tcp 0 0 ::ffff:74.5.*.114:80 ::ffff:119.*.198.*:15954 ESTABLISHED 18393/httpd
unix 2 [ ] DGRAM 506011759 2021/httpd
=======================
but when httpd processes peak out suddenly, the result is like below.
You can see lots of UNIX Socket there.
It just suddenly happens, about twice a week. When it occurs,
I usually kill all the httpd processes by the command
"killall -9 httpd" and restart httpd, otherwise the server goes down.
anyone, please give me a hint why this happens.
or any way to kill only crazy numbers of UNIX Socket processes?
# netstat -np |grep httpd
tcp 0 0 ::ffff:74.5.*.121:80 ::ffff:124.*.*.27:55244 ESTABLISHED 13075/httpd
tcp 0 0 ::ffff:74.5.*.121:80 ::ffff:116.*.*.181:1859 ESTABLISHED 13134/httpd
tcp 0 0 ::ffff:74.5.*.121:80 ::ffff:210.*.*.58:1763 ESTABLISHED 13098/httpd
tcp 0 0 ::ffff:74.5.*.121:80 ::ffff:210.*.*.58:1764 ESTABLISHED 13059/httpd
unix 3 [ ] DGRAM 506002656 13111/httpd
unix 3 [ ] STREAM CONNECTED 506002642 12085/httpd
unix 3 [ ] STREAM CONNECTED 506002544 13056/httpd
unix 3 [ ] DGRAM 506002534 13121/httpd
unix 3 [ ] STREAM CONNECTED 506002101 13133/httpd
unix 3 [ ] DGRAM 505996981 12056/httpd
unix 3 [ ] DGRAM 505983903 13123/httpd
unix 3 [ ] STREAM CONNECTED 505983839 13079/httpd
unix 3 [ ] STREAM CONNECTED 505983830 13075/httpd
unix 3 [ ] STREAM CONNECTED 505983820 13080/httpd
unix 3 [ ] STREAM CONNECTED 505983816 13068/httpd
unix 3 [ ] STREAM CONNECTED 505983814 12145/httpd
unix 3 [ ] DGRAM 505983813 13073/httpd
unix 3 [ ] DGRAM 505983756 12153/httpd
unix 3 [ ] DGRAM 505983753 13117/httpd
unix 3 [ ] DGRAM 505983714 13102/httpd
unix 3 [ ] DGRAM 505983687 13060/httpd
unix 3 [ ] DGRAM 505983660 13116/httpd
unix 3 [ ] DGRAM 505983633 6103/httpd
unix 3 [ ] DGRAM 505983632 13089/httpd
unix 3 [ ] STREAM CONNECTED 505983487 13134/httpd
unix 3 [ ] STREAM CONNECTED 505983484 13059/httpd
unix 3 [ ] STREAM CONNECTED 505983480 13067/httpd
unix 3 [ ] STREAM CONNECTED 505983472 13098/httpd
unix 3 [ ] DGRAM 505983471 13131/httpd
unix 3 [ ] DGRAM 505983440 13052/httpd
unix 3 [ ] DGRAM 505983413 13054/httpd
unix 3 [ ] DGRAM 505983386 13118/httpd
unix 3 [ ] DGRAM 505983385 13065/httpd
unix 3 [ ] STREAM CONNECTED 505983321 12102/httpd
unix 4 [ ] STREAM CONNECTED 505983039 13126/httpd
unix 3 [ ] STREAM CONNECTED 505983035 12104/httpd
unix 3 [ ] STREAM CONNECTED 505983032 13064/httpd
unix 3 [ ] DGRAM 505982897 12139/httpd
unix 3 [ ] STREAM CONNECTED 505982733 11969/httpd
unix 3 [ ] DGRAM 505982700 12141/httpd
unix 3 [ ] DGRAM 505982596 7928/httpd
unix 3 [ ] DGRAM 505982184 9858/httpd
unix 3 [ ] DGRAM 505982097 6120/httpd
unix 3 [ ] STREAM CONNECTED 505982090 32405/httpd
unix 3 [ ] STREAM CONNECTED 505982061 12089/httpd
unix 3 [ ] DGRAM 505982049 8014/httpd
unix 4 [ ] STREAM CONNECTED 505981983 12967/httpd
unix 3 [ ] STREAM CONNECTED 505981793 9879/httpd
unix 3 [ ] STREAM CONNECTED 505981791 12023/httpd
unix 3 [ ] DGRAM 505981784 6824/httpd
unix 3 [ ] DGRAM 505981632 12095/httpd
unix 3 [ ] DGRAM 505981570 12054/httpd
unix 4 [ ] STREAM CONNECTED 505981504 12091/httpd
unix 3 [ ] STREAM CONNECTED 505981441 12081/httpd
unix 3 [ ] DGRAM 505981439 12025/httpd
unix 3 [ ] STREAM CONNECTED 505981327 11518/httpd
unix 3 [ ] STREAM CONNECTED 505981321 12079/httpd
unix 3 [ ] DGRAM 505981280 12031/httpd
unix 3 [ ] DGRAM 505981261 6065/httpd
unix 3 [ ] DGRAM 505981234 6118/httpd
unix 3 [ ] DGRAM 505981170 12097/httpd
unix 3 [ ] DGRAM 505981117 27217/httpd
unix 3 [ ] DGRAM 505981066 11924/httpd
unix 3 [ ] DGRAM 505980999 12030/httpd
unix 3 [ ] DGRAM 505980951 7930/httpd
unix 3 [ ] DGRAM 505980894 12087/httpd
unix 3 [ ] DGRAM 505980775 12118/httpd
unix 3 [ ] DGRAM 505980722 12109/httpd
unix 3 [ ] DGRAM 505980646 12147/httpd
unix 3 [ ] DGRAM 505980605 12138/httpd
unix 3 [ ] DGRAM 505980549 12150/httpd
unix 3 [ ] DGRAM 505980464 12044/httpd
unix 3 [ ] STREAM CONNECTED 505980440 11691/httpd
unix 3 [ ] STREAM CONNECTED 505980432 12006/httpd
unix 3 [ ] DGRAM 505980427 12161/httpd
unix 3 [ ] DGRAM 505980381 7905/httpd
unix 3 [ ] DGRAM 505980332 12132/httpd
unix 3 [ ] DGRAM 505979866 12111/httpd
unix 3 [ ] DGRAM 505979718 8623/httpd
unix 3 [ ] DGRAM 505979658 12004/httpd
unix 3 [ ] DGRAM 505979116 9081/httpd
unix 3 [ ] DGRAM 505967682 12100/httpd
unix 3 [ ] STREAM CONNECTED 505967664 12049/httpd
unix 3 [ ] DGRAM 505967617 12164/httpd
unix 3 [ ] DGRAM 505967547 12086/httpd
unix 4 [ ] STREAM CONNECTED 505967460 12005/httpd
unix 3 [ ] DGRAM 505967445 12142/httpd
unix 3 [ ] DGRAM 505967433 9878/httpd
unix 3 [ ] DGRAM 505967350 12131/httpd
unix 3 [ ] DGRAM 505967272 12045/httpd
unix 3 [ ] DGRAM 505967212 12099/httpd
unix 3 [ ] STREAM CONNECTED 505967070 12154/httpd
unix 3 [ ] DGRAM 505967069 12135/httpd
unix 3 [ ] DGRAM 505966996 12082/httpd
unix 3 [ ] DGRAM 505966965 12114/httpd
unix 3 [ ] DGRAM 505966870 11984/httpd
unix 3 [ ] DGRAM 505966822 7921/httpd
unix 3 [ ] DGRAM 505966797 7929/httpd
unix 3 [ ] DGRAM 505966783 12112/httpd
unix 3 [ ] DGRAM 505966717 7640/httpd
unix 3 [ ] DGRAM 505966677 12094/httpd
unix 3 [ ] DGRAM 505966588 6122/httpd
unix 3 [ ] DGRAM 505966519 11926/httpd
unix 3 [ ] DGRAM 505966516 12033/httpd
unix 3 [ ] DGRAM 505966489 5853/httpd
unix 3 [ ] DGRAM 505966488 12155/httpd
unix 3 [ ] STREAM CONNECTED 505966228 12042/httpd
unix 3 [ ] DGRAM 505966220 12026/httpd
unix 4 [ ] STREAM CONNECTED 505963225 12144/httpd
unix 4 [ ] STREAM CONNECTED 505962823 12007/httpd
unix 3 [ ] STREAM CONNECTED 505960925 11692/httpd
unix 2 [ ] DGRAM 495137547 5853/httpd