worker compile

아파치 Worker 컴파일

– 기본적으로 RPM으로 아파치를 설치하게되면 기본설정이 prefork입니다.
prefork 말고 아파치에서 worker방식을 사용하기 위해 아파치 컴파일을 진행하였습니다.

httpd-2.2.17.tar
OS : RHEL5.5 64BIT

/httpd-2.2.17/server/mpm/worker/worker.c

– 아래 부분 수정
#Ifndef DEFAULT_SERVER_LIMIT
#define DEFAULT_SERVER_LIMIT 16 -> 128 <= 변경
#endif

위의 부분만 설정 후 컴파일을 하면 됩니다.

./configure \
–prefix=/usr/local/apache2 \
–enable-so \
–enable-ssl \
–with-mpm=worker \

make
make install

컴파일후
/usr/local/apache2/bin/apachectl -V를 입력하면 worker 방식으로 동작하는 것을 확인할 수 있습니다.

Server version: Apache/2.2.17 (Unix)
Server built:   Apr 5 2011 12:21:49
Server’s Module Magic Number: 20051115:25
Server loaded: APR 1.4.2, APR-Util 1.3.10
Compiled using: APR 1.4.2, APR-Util 1.3.10
Architecture:   64-bit
Server MPM:     Worker
threaded:     yes (fixed thread count)
    forked:     yes (variable process count)
Server compiled with….
-D APACHE_MPM_DIR=”server/mpm/worker”
-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=”/usr/apache2″
-D SUEXEC_BIN=”/usr/apache2/bin/suexec”
-D DEFAULT_SCOREBOARD=”logs/apache_runtime_status”
-D DEFAULT_ERRORLOG=”logs/error_log”
-D AP_TYPES_CONFIG_FILE=”conf/mime.types”
-D SERVER_CONFIG_FILE=”conf/httpd.conf”

Worker 환경설정
/usr/local/apache2/conf/extra/httpd-mpm.conf

# worker MPM
# StartServers: initial number of server processes to start
# MaxClients: maximum number of simultaneous client connections
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadsPerChild: constant number of worker threads in each server process
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule mpm_worker_module>
    StartServers          2
    MaxClients          150
    MinSpareThreads      25
    MaxSpareThreads      75
    ThreadsPerChild      25
    MaxRequestsPerChild   0

상황에 맞게 위의 수치를 변경하여 사용하실 수 있습니다.