ManagedduplicatesmostoftenarisefromasituationwhereMcAfeeePOreceivespropertiesfromamanagedendpointandisunabletoassociateitwithanexistingentryintheSystemTree.Inotherwords,McAfeeePObelievesthesystemtobenew.Inthestandard(non-VDImode)configuration,McAfeeePOusestheAgentGUIDandMACAddresstoidentifyexistingmachines,soa/forceinstalloftheAgentcanleadtoanewGUIDbeinggenerated,andpotentiallyanewduplicatesystementry.
NOTE:Iftheadministratorcan“checkbox”oneofthemanagedduplicateSystemTreeentriesandmorethanoneoftheduplicateentriesareselected,thisindicatesthatthereisn’taduplicatesystematall.Instead,McAfeeePOisforcedtospreadasinglesystem’spropertiesacrossmultiplerowsbecauseofanunexpectedlyduplicatedproperty.Forexample,ifMcAfeeVirusScanEnterprise8.8Patch8and9arebothinstalledandreportingatthesametime.Toisolatewhatpropertyisatfault,resetthecolumnviewtodefault(Actions–ChooseColumns–UseDefault).
TheMasterRepositoryPullservertaskisacriticaldefaultactionthatisresponsiblefordownloadingcontentupdates(.DATs,etc.)fromMcAfee-hostedsourcesites(McAfeeHTTP)andcheckingitintotheMasterRepositoryonaregularinterval.
Likedistributedrepositoryreplication,rarefailureisrelativelynormal—forexample,ifthebackendsourcesiteisbeingreplicatedtoduringthetimeoftheadministrator’srepositorypull,thetaskcanfail.ItisconsideredabestpracticetoscheduletheMasterRepositorypulltorunmultipletimesthroughoutthedaytolessentheimpactofasinglefailure.Ifthenextpullsucceeds,.DATdeploymentintheenvironmentisdelayedonlyanhour,forexample,insteadofanentireday.
MasterRepositoryfacts:
Intherareeventofafailedrepositorypullleadingtorepositorycorruption(unabletoviewpackageslistedintheMasterRepositorypage,forexample),considerrebuildingtheMasterRepository.
NOTE:Rebuildingtherepositoryremovesallcontentfilesandinstallerpackages.PoliciesandclienttasksarenotimpactedbecausethisdataisstoredintheMcAfeeePOdatabaseandtiedtoextensions,nottherepository.Itwillbenecessary,though,toreplicatetoalldistributedrepositoriesaftercompletingarepositoryrebuild.
IftheadministratorhaschosentoinstallMcAfeeePOinanair-gappedenvironment,oronewithoutaccesstoourpublicrepositoryontheweb,itmaybenecessarytoconfigureMcAfeeePOtoupdatefromanotherinternalserver.
AnothercommonlyrequestedconfigurationisallowingclientmachinestoupdatefromanyMcAfeeePOserverintheenvironment.Toaccomplishthis,it’snecessarytosharethemasterrepositorykeysacrossanyMcAfeeePOserversinstalledintheenvironment.
McAfeeePOusestheMACaddressofaclientmachineasasecondarymatchingmechanism—inotherwords,iftheAgentGUIDhaschanged,theMcAfeeePOservercancheckexistingSystemTreeentriesfortheclient’sMACaddressandassociatetheincomingpropertieswiththatentry.IfboththeGUIDandMACAddressarenotfoundintheMcAfeeePOdatabase,abrand-newSystemTreeentryiscreated.
IfmachinesarelegitimatelyreportingthesameMACaddress(forexample,whencommunicatingoveraVPNconcentratororwhendeployedfromaHypervisorconfiguredtoassignthesameMAC),itisundesirableforMcAfeeePOtousetheMACaddressformatchingpurposes.Thiscanbedisabledentirely(thoughitisnotrecommended)ordonesoonanOUI-basis,asdescribedinKB52949.
NOTE:ExcludingaMACOUIfrombeingusedformatchingpurposesdoesnotstopaMACaddressfrombeingdisplayedmultipletimes(duplicated)asapropertyintheSystemTree.TheMcAfeeAgentcollectsinformationabouttheinstalledMACaddressandreportsittoMcAfeeePO;thisisexpectedinanenvironmentwheremultiplemachineshavethesameMACaddress.
DuplicatedMACaddressescanleadtoissuesthatareoftentheexactoppositeofaduplicatesystemsissue.Systemscanappearto“disappear”fromtheSystemTree,despitetheAuditLognotrecordinganymentionofthemachinebeingdeleted.
StartingwithMcAfeeePO5.10,itispossibletoaddnecessaryMACexclusionsthroughtheconsoledirectly,whereaspreviouslyitrequireddirectSQLaccess.LeveragethenewAddVirtualMACVendorpageinMcAfeeePOServerSettings.
TheMcAfeeePOconsole,hostedbytheMcAfeeePOApplicationServerservice(Tomcat),istheportalthroughwhichallmanagementfeaturesarepossible.Ifaccesstotheconsoleisimpossible,soismanagementoftheenvironment.
NOTE:Iftheconsoleisdown,unlesstheothercomponentsofMcAfeeePO(forexample,theMcAfeeePOServerservice)arealsononfunctional,clientmachineswillcontinuetocommunicate,sendeventsandproperties,andupdatetheircontentifavailable.
Commonandeasilyresolvableissueswithconsoleaccessaretypicallyrelatedtothebrowserandinclude:
Troubleshootingmorecomplexconsoleissuesoftencomesdowntooneoftwoscenarios:
BothscenariosarecoveredinKB81737,thoughformoredetailedinformationontroubleshootingadatabaseconnectionissue,refertotheDatabaseConnectionIssuessection.
IftheadministratorcompletesaDisasterRecoveryprocessandisgreetedbydependencyerrors,seeKB81754.
ApersistentandresponsiveconnectiontotheSQLdatabaseiscriticalforallMcAfeeePOserverandAgentHandler(s)functionality.
NOTE:McAfeeePOBestPracticesdefinetherequiredconnectionspeedbetweenahandler(includingMcAfeeePO)andthedatabasetobelessthan10ms,roundtrip.Iftherequiredspeedisn’tpossible,thedatabaseorhandlersmustbemovedtoaccommodate;otherwise,severelynegativeperformanceimpactswilloccur.
MostdatabaseconnectionproblemscanberesolvedbytheMcAfeeePOadministratorwithabasiclevelofSQLknowledge.Commonissuesinclude:
NOTE:ThemosteffectivewaytoverifybasicSQLconnectivityistouseatest.udlfile.Thebenefitoftest.udlisthatitexistsoutsideoftheframeworkofMcAfeeePOandcanbeusedtodemonstrateifMcAfeeePOisexperiencingasoftwareproblemmcafee 8.8 patch 9,orifthedatabaseconnectionissueexistsattheSQL(ornetwork)level.policiesandclienttasks.
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