Following https://serverfault.com/questions/418735/unbelievable-issue-a-single-apache-process-takes-4-gb-of-memory I post as a new question because I was able to identify the fact that it happens when the client connecting is Googlebot.
By "it", I mean that one single apache process eats 5 Gigabyte of memory ?!
Does anyone has an idea about what could be the cause of this ?
Thanks a lot for any help !
I found another question with exact same problem but no answer : https://serverfault.com/questions/161478/apache-process-consuming-all-memory-on-the-server
Our environment uses PHP and postgresql :
# httpd -V Server version: Apache/2.2.3 Server built: Jun 6 2012 10:00:42 Server's Module Magic Number: 20051115:3 Server loaded: APR 1.2.7, APR-Util 1.2.7 Compiled using: APR 1.2.7, APR-Util 1.2.7 Architecture: 64-bit Server MPM: Prefork threaded: no forked: yes (variable process count) Server compiled with.... -D APACHE_MPM_DIR="server/mpm/prefork" -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=128 -D HTTPD_ROOT="/etc/httpd" -D SUEXEC_BIN="/usr/sbin/suexec" -D DEFAULT_PIDLOG="run/httpd.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_LOCKFILE="logs/accept.lock" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="conf/mime.types" -D SERVER_CONFIG_FILE="conf/httpd.conf"