-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 01/24/2011 12:04 PM, Marco Aimar wrote: > Hy, > I'm use apache 2.2.2. > Casually I find which some process use very high cpu. > This is a "top" >> 21213 wwwrun 20 0 297m 18m 4660 R 98 0.5 100:05.76 httpd2-prefork >> 21149 wwwrun 20 0 297m 19m 5180 R 96 0.5 97:15.34 httpd2-prefork >> 20882 wwwrun 20 0 298m 19m 5464 R 95 0.5 96:38.06 httpd2-prefork >> 20700 wwwrun 20 0 297m 20m 5880 R 94 0.5 101:04.42 httpd2-prefork > > Cpu used for first reported process it's 98%. > There is a one way for know why this appear? > I think it's some attack or some process php but I can not trace the origin. Things to look at: - - Number of connections in state ESTABLISHED (netstat -aln | grep ESTABLISHED) - - Compare above with number of hits in your access.log - - Any errors in the error.log? - - PHP->Database connection tuning? (Database should be able to support MaxClients connections) - - Whats the I/O load of the system? (iostat) Mark. - -- Mark Watts BSc RHCE Senior Systems Engineer, MSS Secure Managed Hosting www.QinetiQ.com QinetiQ - Delivering customer-focused solutions GPG Key: http://www.linux-corner.info/mwatts.gpg -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAk09cV8ACgkQBn4EFUVUIO1UcgCfcFCXU+H22z3y5XEE8VLhmtwY cBIAoIDC0ovEbmAzDkdLx2A6TqSMTdA4 =okN1 -----END PGP SIGNATURE----- --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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