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Table Of Contents
VMware ACE Administrator’s Manual
76 VMware, Inc.
thesametime,sothattheACE2ManagementServerwouldrequireatleastasmany
databaseconnectionsavailableforitsuse.Iftheserverrunsoutofdatabase
connections,theclientsmightstartreceivingconnectionerrors.
Toensuresmoothoperationoftheserverwithanexternaldatabaseoption,ensurethat
theserverhasasufficientamountofdatabaseconnectionsavailableforit.The
maximumnumberofremoteconnectionsallowedtothedatabaseisadatabase
configurationoption(checkyourdatabasemanualfortheinformationonhowto
configureit).Youshouldconfigureatleastasmanyconnectionsastherecouldbe
parallelthreadsorprocessesintheApacheHTTPserverrunningtheACE2
ManagementServercomponent(orallowanunlimitednumberofconnections).
TofindouthowmanyparallelthreadsorprocessesyourApacheservercouldstart,
inspecttheApacheconfigurationfile,lookingforthe“prefork”or“MPM”section.The
number
ofallowedclientsisthelowerboundfortherequirednumberofdatabase
connections.Youcaneitherreducethisnumberorincreasethenumberoftheallowed
remoteconnectionsinthedatabase.
Asaroughguide,hereisthelocationoftheApacheconfigurationfileperplatformand
thetypicaldefault
numberofconnections:
OntheWindowsplatform:
C:\Program Files\VMware\VMware ACE Management Server\Apache2\
conf\httpd.conf
250clientconnections(WinNTMPMsection)
OntheLinuxRHEL4platform:
/etc/httpd/conf/httpd.conf
256clientconnections(preforkMPMsection)
OntheLinuxSLES9platform:
/etc/apache2/server-tuning.conf
150clientconnections(preforkMPMsection)
OntheACE2ManagementServerAppliance:
/etc/httpd/apache2.conf
20clientconnections(preforkMPMsection)
ThedefaultinstallationofthePostgreSQLdatabaseonRHELLinuxallowsonly100
remoteconnections,whichislessthanthenumberofparallelthreadsstartedbythe
Apacheserverbydefaultonthesameplatform,soyoumightwanttochangethis
numberifyou
expectahighvolumeofclientrequeststoyourserver(basically,ifyou
havemorethan100activeclients).