I have a very odd intermittent issue. It occurs on a shared hosting server running CentOS and Apache/2.2.8, serving mostly PHP based websites at a rate of between 10 – 30 requests/sec. 3.5 GB RAM, kernel 2.6.9-67.0.7ELsmp in case that matters.
What happens is, about once a week (but seemingly randomly with no correlation) apache will get "clogged" handling requests for only ONE domain, and normally most of the retests are all for the same URL. I know the problem occurs because load goes through the roof. (Load reaches 50 or 100, if I don't stop it load hits 200!) Only fix I've found is to: killall -9 httpd; /etc/init.d/httpd restart.
If I check /server-status when this is happening, the output is similar to the following. Note it doesn't always happen on this site but about 75% of the time this site's the culprit: EDIT: This is now happening on a completely different server, so it's not specific to a given script.
UPDATE: We have moved all the sites on this server to a brand new virtual machine on brand new hardware. Faster disks, more RAM. The issue persists, in fact it's even worse! Any ideas? I'd gladly offer a gigantic bounty to the correct answer, but I am reluctant to actually offer one as this question has gone years with no correct answer in sight.
Apache Server Status for localhost
Server Version: Apache/2.2.8 (Unix) mod_ssl/2.2.8 OpenSSL/0.9.7a DAV/2 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 PHP/5.2.6 mod_perl/2.0.4 Perl/v5.8.8
Server Built: Jun 7 2008 09:35:37
Current Time: Friday, 17-Jul-2009 10:15:40 EDT
Restart Time: Friday, 03-Jul-2009 12:36:59 EDT
Parent Server Generation: 3
Server uptime: 13 days 21 hours 38 minutes 40 seconds
Total accesses: 10343186 - Total Traffic: 111.6 GB
CPU Usage: u1710.63 s2129.19 cu.41 cs0 - .32% CPU load
8.61 requests/sec - 97.4 kB/second - 11.3 kB/request
250 requests currently being processed, 0 idle workers
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWKWWWWWWWWWWWWWWWWWW......
Scoreboard Key:
"_" Waiting for Connection, "S" Starting up, "R" Reading Request,
"W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup,
"C" Closing connection, "L" Logging, "G" Gracefully finishing,
"I" Idle cleanup of worker, "." Open slot with no current process
Srv PID Acc M CPU SS Req Conn Child Slot Client VHost Request
0-3 3282 0/52/316180 W 1.47 41802 0 0.0 0.54 3849.21 209.249.53.104 zachdotsey.com GET /wordpress/2007/08/18/the-body-exhibition/ HTTP/1.0
1-3 30061 0/191/313974 W 34.46 44051 0 0.0 2.62 3400.19 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
2-3 2720 1/23/307812 W 0.13 42298 0 0.5 0.01 3479.29 68.118.8.157 zachdotsey.com GET /wordpress/ HTTP/1.1
3-3 1733 0/382/306392 W 3.59 41744 0 0.0 3.67 3383.63 75.101.200.204 zachdotsey.com GET /wordpress/2007/08/18/the-body-exhibition/ HTTP/1.0
4-3 3141 0/132/305071 W 3.52 41776 0 0.0 2.20 3335.79 209.249.53.236 zachdotsey.com GET /wordpress/2007/08/18/the-body-exhibition/ HTTP/1.0
5-3 31819 0/73/300070 W 0.79 43932 0 0.0 2.05 3349.65 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
6-3 6799 0/13/294060 W 0.16 40354 0 0.0 0.25 3261.88 76.23.230.184 zachdotsey.com GET /wordpress/?p=111 HTTP/1.1
7-3 4334 0/92/289873 W 0.42 40277 0 0.0 0.36 3211.94 72.233.56.144 zachdotsey.com GET /wordpress/feed/ HTTP/1.1
8-3 18326 0/11/294687 W 0.14 32476 0 0.0 0.06 3217.41 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
9-3 2451 0/56/291730 W 0.23 42381 0 0.0 0.32 3113.19 68.118.8.157 zachdotsey.com GET /wordpress/index.php HTTP/1.1
10-3 31211 0/59/280899 W 6.04 44051 0 0.0 0.77 3128.00 72.52.238.128 zachdotsey.com POST /wordpress/wp-cron.php?doing_wp_cron HTTP/1.0
11-3 3823 0/4/277229 W 0.17 41746 0 0.0 0.04 3014.66 68.118.8.157 zachdotsey.com GET /wordpress/index.php HTTP/1.1
12-3 4473 0/9/277074 W 0.08 38453 0 0.0 0.00 3313.94 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
13-3 4242 1/14/272166 W 0.10 41659 0 0.5 0.05 2977.05 68.118.8.157 zachdotsey.com GET /wordpress/ HTTP/1.1
14-3 2323 0/234/269513 W 0.84 42136 0 0.0 1.02 2946.48 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
15-3 32051 0/6/257740 W 0.08 43872 0 0.0 0.58 2866.34 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
16-3 16986 0/271/259463 W 18.13 16761 0 0.0 4.12 2896.05 74.6.18.233 zachdotsey.com GET /wordpress/tag/xbox/ HTTP/1.0
17-3 2297 1/8/252501 W 0.54 42502 0 0.5 0.18 2797.73 68.118.8.157 zachdotsey.com GET /wordpress/ HTTP/1.1
18-3 9476 1/145/247116 W 0.61 40095 0 0.4 1.53 2703.11 64.237.119.18 zachdotsey.com GET /wordpress/ HTTP/1.1
19-3 2494 0/214/244830 W 3.16 42017 0 0.0 2.40 2618.41 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
20-3 5526 0/118/238426 W 3.50 37656 0 0.0 1.73 2544.06 68.10.212.178 zachdotsey.com GET /wordpress/2009/07/15/andre-dawkins-to-duke-a-year-early/ H
21-3 31901 0/28/228757 W 0.14 43992 0 0.0 0.04 2522.36 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
22-3 12398 0/25/216141 W 0.40 39998 0 0.0 4.72 2398.82 38.117.108.131 zachdotsey.com GET /wordpress/ HTTP/1.1
23-3 2300 0/187/222141 W 0.68 42315 0 0.0 0.67 2503.15 65.184.161.115 zachdotsey.com GET /wordpress/ HTTP/1.1
24-3 31969 0/25/211848 W 0.26 43810 0 0.0 0.38 2326.01 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
25-3 31582 0/25/198495 W 0.17 69010 0 0.0 0.25 2139.13 70.63.195.121 myvenue.venuecom.com POST /fastmail/ HTTP/1.1
26-3 28115 1/1/197089 W 0.04 40155 0 0.4 0.00 2126.75 64.237.119.18 zachdotsey.com GET /wordpress/ HTTP/1.1
27-3 12988 1/42/186898 W 0.55 35055 0 2.1 0.36 2037.54 71.193.156.250 zachdotsey.com GET /wordpress/ HTTP/1.1
28-3 3780 1/26/181659 W 0.34 41662 0 0.5 0.05 1918.00 68.118.8.157 zachdotsey.com GET /wordpress/ HTTP/1.1
29-3 1002 0/22/169331 W 0.18 39885 0 0.0 0.03 1888.59 64.40.121.190 zachdotsey.com GET /robots.txt HTTP/1.0
30-3 4493 0/6/163101 W 0.06 41465 0 0.0 0.18 1732.58 209.131.41.49 zachdotsey.com GET /wordpress/feed/ HTTP/1.0
31-3 32458 0/1/162852 W 0.04 43750 0 0.0 0.01 1758.80 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
32-3 14198 0/571/157504 W 47.36 32680 0 0.0 8.64 1733.04 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
33-3 2213 0/9/152830 W 0.32 42624 0 0.0 0.00 1782.36 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
34-3 2308 0/1/137395 W 0.06 39398 0 0.0 0.00 1433.25 64.40.121.190 zachdotsey.com GET /wordpress/ HTTP/1.0
35-3 6984 0/123/127498 W 1.88 40241 0 0.0 0.18 1350.38 206.196.125.113 zachdotsey.com GET /wordpress/?feed=rss2 HTTP/1.1
36-3 1003 0/21/116316 W 0.81 39874 0 0.0 1.15 1216.35 67.202.60.246 zachdotsey.com GET /wordpress/ HTTP/1.1
37-3 3025 0/19/106816 W 0.16 42196 0 0.0 0.28 1096.76 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
38-3 4250 1/15/101047 W 0.09 41660 0 0.5 0.01 1198.01 68.118.8.157 zachdotsey.com GET /wordpress/ HTTP/1.1
39-3 3073 0/73/91871 W 2.32 41891 0 0.0 1.81 924.03 68.118.8.157 zachdotsey.com GET /wordpress/index.php HTTP/1.1
40-3 2133 0/15/86368 W 0.20 39445 0 0.0 0.09 888.41 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
41-3 2803 0/93/79858 W 0.67 39020 0 0.0 0.69 877.38 64.40.121.190 zachdotsey.com GET /wordpress/ HTTP/1.0
42-3 3030 0/165/72532 W 35.08 41532 0 0.0 2.17 777.91 65.184.161.115 zachdotsey.com GET /wordpress/?feed=rss2 HTTP/1.1
43-3 13566 0/427/68292 W 14.81 33263 0 0.0 6.28 682.48 174.129.193.94 zachdotsey.com GET /wordpress/feed/ HTTP/1.1
44-3 31951 0/6/65523 W 0.39 43980 0 0.0 0.15 624.37 78.31.110.126 zachdotsey.com GET /wordpress/feed HTTP/1.1
45-3 17775 0/4/64507 W 0.11 32768 0 0.0 0.00 666.08 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
46-3 17485 0/280/61533 W 30.17 16250 0 0.0 6.34 655.87 77.88.42.26 zachdotsey.com GET /robots.txt HTTP/1.1
47-3 1379 0/305/51058 W 2.50 42256 0 0.0 5.02 691.25 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
48-3 15264 0/28/49621 W 0.11 33958 0 0.0 0.02 527.41 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
49-3 20544 1/28/48765 W 1.55 40125 0 0.4 0.17 516.42 64.237.119.18 zachdotsey.com GET /wordpress/ HTTP/1.1
50-3 14318 0/408/50772 W 26.77 32722 0 0.0 7.28 509.18 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
51-3 2258 0/18/45699 W 0.08 39388 0 0.0 0.01 456.81 64.40.121.190 zachdotsey.com GET /robots.txt HTTP/1.0
52-3 3039 0/21/37675 W 0.38 42077 0 0.0 1.58 442.82 65.184.161.115 zachdotsey.com POST /wordpress/wp-admin/admin-ajax.php HTTP/1.1
53-3 2747 0/3/35053 W 0.06 39268 0 0.0 0.22 371.79 64.40.121.190 zachdotsey.com GET /wordpress/ HTTP/1.0
54-3 17408 0/22/35784 W 0.26 32871 0 0.0 0.42 367.04 74.6.18.233 zachdotsey.com GET /robots.txt HTTP/1.0
55-3 4511 0/6/29200 W 0.40 41444 0 0.0 0.23 375.89 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
56-3 5534 0/54/27466 W 2.63 37695 0 0.0 0.38 305.27 68.10.212.178 zachdotsey.com GET /wordpress/2009/07/15/andre-dawkins-to-duke-a-year-early/ H
57-3 23760 0/41/20806 W 0.23 40553 0 0.0 0.33 219.16 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
58-3 5638 0/247/17586 W 2.79 40174 0 0.0 2.66 182.34 64.237.119.18 zachdotsey.com GET /wordpress/feed/ HTTP/1.1
59-3 31783 0/5/18112 W 0.05 40067 0 0.0 0.06 182.11 65.113.57.7 zachdotsey.com GET /wordpress/feed/ HTTP/1.0
60-3 2319 0/1/13920 W 0.03 39391 0 0.0 0.00 145.61 38.117.108.131 zachdotsey.com GET /wordpress/ HTTP/1.1
61-3 23730 0/155/12935 W 29.86 28181 0 0.0 3.25 153.35 72.30.161.222 zachdotsey.com GET /wordpress/2008/10/26/tiring-surf-sessions/ HTTP/1.0
62-3 12586 0/25/12506 W 0.14 40271 0 0.0 0.09 135.23 72.233.56.156 zachdotsey.com GET /wordpress/ HTTP/1.1
63-3 13567 0/15/10439 W 0.54 34975 0 0.0 0.10 137.24 84.217.7.221 zachdotsey.com GET /wordpress/2009/06/06/emergency-baby-call-tests/ HTTP/1.1
64-3 17776 1/161/10534 W 1.65 31758 0 0.4 2.14 128.33 208.92.218.250 zachdotsey.com GET /wordpress/ HTTP/1.1
65-3 3053 0/159/7939 W 7.25 41485 0 0.0 2.64 74.76 209.131.41.48 zachdotsey.com GET /robots.txt HTTP/1.0
66-3 5056 0/115/6934 W 1.56 37848 0 0.0 2.43 81.76 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
67-3 16535 0/160/6199 W 19.57 39641 0 0.0 2.57 67.22 64.40.121.190 zachdotsey.com GET /wordpress/ HTTP/1.0
68-3 17777 0/37/7722 W 0.24 32569 0 0.0 0.15 93.77 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
69-3 2355 0/2/5737 W 0.15 39346 0 0.0 0.03 73.54 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
70-3 10432 0/24/5080 W 0.33 36392 0 0.0 0.47 45.89 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
71-3 10433 0/12/4099 W 0.93 36365 0 0.0 0.65 41.80 68.7.141.144 zachdotsey.com GET /wordpress/2006/12/18/the-plastic-coating-on-the-end-of-a-s
72-3 6145 0/114/4835 W 12.61 37285 0 0.0 1.49 57.55 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
73-3 5539 0/71/4717 W 5.37 37680 0 0.0 1.63 62.39 68.10.212.178 zachdotsey.com GET /wordpress/2009/07/15/andre-dawkins-to-duke-a-year-early/ H
74-3 17690 0/38/5004 W 0.12 32810 0 0.0 0.25 46.34 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
75-3 1528 0/38/3991 W 0.14 39764 0 0.0 0.08 41.91 64.40.121.190 zachdotsey.com GET /wordpress/ HTTP/1.0
76-3 2751 0/26/2886 W 0.22 39144 0 0.0 0.63 25.56 64.40.121.190 zachdotsey.com GET /wordpress/ HTTP/1.0
77-3 5453 0/95/6939 W 1.95 21796 0 0.0 1.09 87.49 69.147.79.37 zachdotsey.com GET /robots.txt HTTP/1.0
78-3 5061 0/192/3238 W 9.87 37110 0 0.0 2.13 39.70 78.31.110.126 zachdotsey.com GET /wordpress/feed HTTP/1.1
79-3 9955 0/143/4659 W 11.55 35985 0 0.0 7.35 64.53 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
80-3 17779 0/29/4181 W 0.33 32548 0 0.0 0.47 48.11 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
81-3 1192 0/74/2861 W 0.54 39651 0 0.0 0.42 27.09 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
82-3 13108 0/42/4116 W 0.13 35144 0 0.0 0.10 37.39 71.193.156.250 zachdotsey.com GET /wordpress/wp-login.php?loggedout=true HTTP/1.1
83-3 32180 0/0/6535 W 0.98 10753 0 0.0 0.00 105.04 142.166.3.122 zachdotsey.com GET /robots.txt HTTP/1.1
84-3 24479 0/148/4080 W 98.02 28139 0 0.0 3.46 60.62 72.30.161.222 zachdotsey.com GET /wordpress/2008/10/26/tiring-surf-sessions/ HTTP/1.0
85-3 776 1/204/8349 W 40.83 9214 0 0.4 3.57 99.11 64.237.119.18 zachdotsey.com GET /wordpress/ HTTP/1.1
86-3 13569 0/25/3218 W 10.53 34863 0 0.0 0.29 28.96 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
87-3 13110 0/2/2535 W 0.09 35187 0 0.0 0.00 26.16 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
88-3 4716 0/157/2237 W 3.75 37444 0 0.0 3.58 25.28 206.196.125.113 zachdotsey.com GET /wordpress/?feed=rss2 HTTP/1.1
89-3 19878 0/110/2928 W 10.39 31357 0 0.0 0.54 26.66 58.61.164.39 zachdotsey.com GET /robots.txt HTTP/1.1
90-3 2003 0/28/1847 W 1.81 39519 0 0.0 0.39 19.10 64.40.121.190 zachdotsey.com GET /wordpress/ HTTP/1.0
91-3 13570 0/0/1928 W 10.59 35116 0 0.0 0.00 23.59 71.193.156.250 zachdotsey.com GET /wordpress/ HTTP/1.1
92-3 16358 0/282/1910 W 33.11 32280 0 0.0 5.57 26.53 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
93-3 16367 0/50/1664 W 10.03 33243 0 0.0 0.88 17.62 174.129.193.94 zachdotsey.com GET /wordpress/feed/ HTTP/1.1
94-3 25642 0/82/2391 W 19.24 28268 0 0.0 2.07 34.95 72.30.161.222 zachdotsey.com GET /wordpress/2008/10/26/tiring-surf-sessions/ HTTP/1.0
95-3 24480 0/261/2711 W 31.22 27528 0 0.0 3.14 43.29 75.219.249.154 zachdotsey.com GET /wordpress/tag/missy-warkentien/ HTTP/1.1
96-3 17692 0/514/1024 W 46.55 30965 0 0.0 6.50 14.37 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
97-3 10442 0/126/1041 W 1.25 35891 0 0.0 1.20 8.47 203.171.91.144 zachdotsey.com GET /wordpress/2009/07/15/andre-dawkins-to-duke-a-year-early/ H
98-3 25643 0/103/1705 W 0.67 28008 0 0.0 2.83 20.89 74.6.18.233 zachdotsey.com GET /wordpress/2008/10/26/tiring-surf-sessions/ HTTP/1.0
99-3 22619 0/338/1657 W 27.38 28329 0 0.0 4.00 27.55 72.30.161.222 zachdotsey.com GET /robots.txt HTTP/1.0
100-3 19714 0/0/1845 W 12.66 31778 0 0.0 0.00 22.14 208.92.218.250 zachdotsey.com GET /wordpress/feed/ HTTP/1.1
101-3 19367 1/155/1983 W 10.76 31728 0 0.4 0.15 23.66 208.92.218.250 zachdotsey.com GET /wordpress/ HTTP/1.1
102-3 26652 0/122/1187 W 41.42 26872 0 0.0 3.00 14.95 75.219.249.154 zachdotsey.com GET /wordpress/tag/missy-warkentien/ HTTP/1.1
103-3 7280 3/361/1639 W 12.44 35165 0 8.9 4.80 17.06 71.193.156.250 zachdotsey.com GET /wordpress/ HTTP/1.1
104-3 20843 0/507/949 W 99.96 28160 0 0.0 7.70 11.64 72.30.161.222 zachdotsey.com GET /wordpress/2008/10/26/tiring-surf-sessions/ HTTP/1.0
105-3 20844 0/308/1868 W 23.03 30024 0 0.0 3.00 28.11 78.31.110.126 zachdotsey.com GET /wordpress/feed HTTP/1.1
106-3 17791 1/278/1026 W 26.89 31698 0 0.4 4.18 13.29 208.92.218.250 zachdotsey.com GET /wordpress/ HTTP/1.1
107-3 17792 0/304/642 W 12.27 31388 0 0.0 2.72 8.79 58.61.164.39 zachdotsey.com GET /robots.txt HTTP/1.1
108-3 17697 0/57/515 W 0.30 32611 0 0.0 1.78 8.41 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
109-3 19715 0/611/783 W 60.52 29153 0 0.0 5.94 7.20 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
110-3 13952 0/345/614 W 5.95 33656 0 0.0 3.47 8.18 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
111-3 32009 0/75/1959 W 5.25 24778 0 0.0 1.06 22.60 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
112-3 17793 0/35/178 W 11.11 32590 0 0.0 0.44 1.92 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
113-3 19533 0/8/2004 W 0.16 16705 0 0.0 1.32 34.66 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
114-3 22622 0/304/925 W 181.63 28201 0 0.0 5.05 12.30 72.30.161.222 zachdotsey.com GET /wordpress/2008/10/26/tiring-surf-sessions/ HTTP/1.0
115-3 26656 0/38/763 W 0.55 27724 0 0.0 0.40 6.22 75.219.249.154 zachdotsey.com GET /wordpress/tag/missy-warkentien/ HTTP/1.1
116-3 31804 0/57/3039 W 2.17 10748 0 0.0 1.27 44.70 142.166.3.122 zachdotsey.com GET /wordpress/2009/07/13/millys-first-time-in-a-restaurant/ HT
117-3 26658 0/0/866 W 14.05 28069 0 0.0 0.00 11.50 74.6.18.233 zachdotsey.com GET /robots.txt HTTP/1.0
118-3 26659 0/46/646 W 4.59 27608 0 0.0 0.47 4.90 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
119-3 5457 0/86/998 W 21.35 21916 0 0.0 1.59 14.79 69.147.79.37 zachdotsey.com GET /robots.txt HTTP/1.0
120-3 9855 0/486/1470 W 58.03 18535 0 0.0 8.31 25.07 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
121-3 17802 0/8/206 W 0.05 32743 0 0.0 0.00 1.67 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
122-3 17803 0/10/141 W 0.19 32701 0 0.0 0.00 1.08 74.6.18.233 zachdotsey.com GET /wordpress/2008/12/ HTTP/1.0
123-3 19888 0/69/120 W 0.37 31389 0 0.0 0.97 1.10 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
124-3 25184 0/160/689 W 33.97 27701 0 0.0 5.24 9.16 75.219.249.154 zachdotsey.com GET /wordpress/tag/missy-warkentien/ HTTP/1.1
125-3 27208 0/615/2460 W 28.73 10736 0 0.0 7.88 44.54 142.166.3.122 zachdotsey.com GET /wordpress/2009/07/14/millys-smile/ HTTP/1.1
126-3 21945 0/281/410 W 4.56 29359 0 0.0 3.82 7.16 74.6.18.233 zachdotsey.com GET /robots.txt HTTP/1.0
127-3 25187 0/392/429 W 58.81 25928 0 0.0 7.26 7.47 75.219.249.154 zachdotsey.com GET /wordpress/ HTTP/1.1
128-3 21948 0/223/299 W 2.32 30044 0 0.0 1.29 1.77 66.249.66.2 zachdotsey.com GET /robots.txt HTTP/1.1
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Best Answer
After you saying what modules you had, I noticed you said EAccelerator, which has a bug (Bug tracker link here) that causes Apache to lockup in never ending loop, and bring the server to a near standstill, try disabling that and see what happens.