เปิด top ดูค่าอื่นๆก็ปกติ แต่รู้สึกว่าโฮสช้ามาก
top - 15:42:28 up 10 days, 8:03, 1 user, load average: 0.45, 0.52, 0.60
Tasks: 64 total, 1 running, 63 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.3%us, 0.4%sy, 0.0%ni, 94.9%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3000000k total, 1760652k used, 1239348k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 1102964k cached
เลยลอง ping ดู ปรากฎว่าเจอ timeout ทุกๆ 4-7แถว บางทีมาติดๆกัน
เลยลองเปิด apache error log ดู เจอตัวนี้ครับ
(105)No buffer space available: connect to listener on [::]:443
ตอนเช้าเจอแบบนี้ก่อนครับ ตอนเช้าไม่ได้ดูว่ามีปัญหาไหมครับ เพิ่งได้ดูตอนบ่าย
[Sun Mar 27 09:56:01 2016] [error] (12)Cannot allocate memory: fork: Unable to fork new process
Out of memory (Needed 24480 bytes)
Out of memory (Needed 16320 bytes)
Out of memory (Needed 16320 bytes)
Out of memory (Needed 16320 bytes)
Out of memory (Needed 16320 bytes)
[Sun Mar 27 09:57:11 2016] [error] (12)Cannot allocate memory: fork: Unable to fork new process
[Sun Mar 27 09:57:21 2016] [error] (12)Cannot allocate memory: fork: Unable to fork new process
Out of memory (Needed 57120 bytes)
Out of memory (Needed 294920 bytes)
Out of memory (Needed 176136 bytes)
Out of memory (Needed 294920 bytes)
Out of memory (Needed 176136 bytes)
Out of memory (Needed 294920 bytes)
Out of memory (Needed 176136 bytes)
Out of memory (Needed 294920 bytes)
Out of memory (Needed 176136 bytes)
Out of memory (Needed 294920 bytes)
Out of memory (Needed 176136 bytes)
Out of memory (Needed 28112 bytes)
Out of memory (Needed 28112 bytes)
Out of memory (Needed 28112 bytes)
[Sun Mar 27 09:57:31 2016] [notice] child pid 29534 exit signal Segmentation fault (11)
[Sun Mar 27 09:57:31 2016] [notice] child pid 29543 exit signal Segmentation fault (11)
[Sun Mar 27 09:57:31 2016] [notice] child pid 29544 exit signal Segmentation fault (11)
[Sun Mar 27 10:15:30 2016] [error] [client 209.236.123.16] File does not exist: /var/www/html/CHANGELOG.txt
[Sun Mar 27 10:15:30 2016] [error] [client 209.236.123.16] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 10:49:30 2016] [error] [client 115.84.116.239] File does not exist: /var/www/html/data2
[Sun Mar 27 10:49:30 2016] [error] [client 115.84.116.239] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 11:00:04 2016] [error] [client 111.13.102.7] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 11:00:04 2016] [error] [client 111.13.102.7] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 11:06:34 2016] [error] [client 171.7.248.165] File does not exist: /var/www/html/wp-content
[Sun Mar 27 11:06:34 2016] [error] [client 171.7.248.165] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 11:31:01 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 11:31:01 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 11:31:01 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/sitemap.xml
[Sun Mar 27 11:31:01 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 11:31:02 2016] [error] [client 207.241.226.94] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 11:31:02 2016] [error] [client 207.241.226.94] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 12:11:20 2016] [error] [client 115.84.119.178] File does not exist: /var/www/html/_json
[Sun Mar 27 12:11:20 2016] [error] [client 115.84.119.178] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 12:11:50 2016] [error] [client 115.84.119.178] File does not exist: /var/www/html/pagead
[Sun Mar 27 12:11:50 2016] [error] [client 115.84.119.178] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 12:11:55 2016] [error] [client 115.84.119.178] File does not exist: /var/www/html/image_article, referer: http://www.siamupdate.com/news-181932
[Sun Mar 27 12:11:55 2016] [error] [client 115.84.119.178] File does not exist: /var/www/html/404.shtml, referer: http://www.siamupdate.com/news-181932
[Sun Mar 27 12:40:39 2016] [error] [client 115.84.119.181] File does not exist: /var/www/html/playmag, referer: http://www.iamplaymag.com/playmag/bookshop?lang=th
[Sun Mar 27 12:40:39 2016] [error] [client 115.84.119.181] File does not exist: /var/www/html/404.shtml, referer: http://www.iamplaymag.com/playmag/bookshop?lang=th
[Sun Mar 27 12:40:59 2016] [error] [client 115.84.119.181] File does not exist: /var/www/html/w
[Sun Mar 27 12:40:59 2016] [error] [client 115.84.119.181] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 12:43:10 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 12:43:10 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
อันนี้คือตอนนี้เลยครับ ช่วงนี้โฮสช้าๆ timeout เป็นระยะทุก 4-6 วินาที
[Sun Mar 27 15:46:27 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 15:46:27 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:46:27 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/sitemap.xml
[Sun Mar 27 15:46:27 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:46:40 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 15:46:40 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:46:40 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/sitemap.xml
[Sun Mar 27 15:46:40 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:48:27 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 15:48:27 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:48:51 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:49:27 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:49:33 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:50:04 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:50:27 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:51:09 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 15:51:09 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:51:09 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/sitemap.xml
[Sun Mar 27 15:51:09 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:51:10 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/sitemap.xml
[Sun Mar 27 15:51:10 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:51:10 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/robots.txt
[Sun Mar 27 15:51:10 2016] [error] [client 124.112.118.89] File does not exist: /var/www/html/404.shtml
[Sun Mar 27 15:51:29 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:52:19 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:53:06 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:53:25 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:54:46 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:54:47 2016] [warn] (105)No buffer space available: connect to listener on [::]:443
[Sun Mar 27 15:56:38 2016] [warn] (105)No buffer space available: connect to listener on [::]:443