Apache Tomcat Thread 설정

# 수정일자 - 2018.05.29

Apache

httpd.conf

Include conf/extra/httpd-mpm.conf

주석처리 해제

# Server-pool management (MPM specific)
Include conf/extra/httpd-mpm.conf

#<IfModule mpm_worker_module>
#    StartServers             3
#    MinSpareThreads         75
#    MaxSpareThreads        250
#    ThreadsPerChild         25
#    MaxRequestWorkers      400
#    MaxConnectionsPerChild   0
#</IfModule>

<IfModule mpm_worker_module>
    StartServers             8
    ServerLimit             32
    MaxClients            4096
    MinSpareThreads       1024
    MaxSpareThreads       2048
    ThreadsPerChild        128
    MaxRequestsPerChild      0
</IfModule>

Tomcat 

server.xml

JVM 설정

<Listener className="org.apache.catalina.mbeans.JmxRemoteLifecycleListener" rmiRegistryPortPlatform="9090" rmiServerPortPlatform="9091" />

추가 후 포트 부분 수정

Tomcat Thread 수 수정

<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
maxThread="500"
maxHttpHeaderSize="8192"
emptySessionPath="true"
enableLookups="false"
redirectPort="8443"
URIEncoding="utf-8" />

maxThread : 최대 Thread 수 - LoadBallens를 다수개 걸었을 경우 최대 Thread는 Tomcat 하나당 500개로 하는게 좋다.