/Three indicators that could signal database performance issues – Business Intelligence Info

Three indicators that could signal database performance issues – Business Intelligence Info

Eventhebest-designeddatabaseapplicationsexperienceperformancedegradation。

NomatterhowwelldatabasestructuresaredefinedorSQLcodeiswritten,thingscananddogowrong。

Andifperformanceproblemsarentcorrectedquickly,thatcanbedetrimentaltoacompanysbottomline。

Whendatabaseperformancesuffers,businessprocessesinsideorganizationsslowdownandenduserscomplain。

Butthatisnttheworstofit。

Iftheperformanceofexternallyfacingsystemsisbadenough,companiescanlosebusiness,ascustomerswhogetfedupwaitingforapplicationstorespondwillgoelsewhere。

Becausetheperformanceofdatabasesystemsandapplicationscanbeaffectedbyavarietyoffactors,toolsthatcanfindandfixthecausesofdatabaseperformanceissuesarevitalfororganizationsthatrelyondatabasemanagementsystems(DBMSes)toruntheirmission-criticalsystems。

Andintodaysdatabase-centricITworld,thatappliestomostbusinesses。

Typesofperformanceissuestolookfor

Therearemanytypesofdatabaseperformanceproblems,whichoftenmakesitdifficulttotrackdownthecauseofindividualissues。

Itspossible,forexample,thatthedatabasestructuresorapplicationcodeareflawedfromthebeginning。

BaddatabasedesigndecisionsandimproperlycodedSQLstatementscanresultinpoorperformance。

Theabilitytocollectmetricsondatabaseusageandidentifyspecificdatabaseproblemsasandwhentheyoccurisperhapsthemostcompellingcapabilityofdatabaseperformancetools。

Oritmaybethatasystemwaswell-designedinitially,butchangesovertimecauseperformancetodegrade。

Moredata,moreusersordifferentdataaccesspatternscanslowdowneventhebestdatabaseapplications。

EvenmaintenancetoaDBMSoralackofregularlyscheduleddatabasemaintenancecancauseperformancetonosedive。

ThefollowingarethreeimportantindicatorsthatcouldsignaldatabaseperformanceissuesatyourITshop:

Applicationslowdowns。

Themostimportantindicationofpotentialdatabaseperformanceissuesiswhenthingsthatusedtorunfastbegintorunslower。

Thisincludesonlinetransactionprocessingsystemsusedbyemployeesorcustomers,orbatchjobsthatprocessdatainbulkfortaskssuchaspayrollprocessingandmonth-endreporting。

Itcanbedifficulttomonitorprocessingworkloadswithoutdatabaseperformancemanagementtools。

Inthatcase,databaseadministrators(DBAs)andperformanceanalystshavetorelyonothermethodstodetectproblemsinparticular,end-usercomplaintsaboutissuessuchasapplicationscreenstakingtoolongtoloadornothinghappeningforalongtimeafterinformationisenteredintoanapplication。

Systemoutages。

Whenasystemisdown,databaseperformanceobviouslyisatitsworst。

Outagescanbecausedbydatabaseissuessuchasrunningoutofstoragespaceduetoincreasingdatavolumesoraresourcesuchasadataset,partitionorpackagebeingunavailable?

Theneedforfrequenthardwareupgrades。

Organizationsthatareconstantlyupgradingserverstolargermodelswithmorememoryandstorageareoftencandidatesfordatabaseperformancetuning。

Tweakingdatabaseparameters,tuningSQLstatementsandreorganizingdatabaseobjectscanbemuchlessexpensivethanfrequentlyupgradingcostlyhardwareandequipment。

Ontheflipside,sometimeshardwareupgradesareneededtoresolvedatabaseperformanceproblems。

Butwiththeproperdatabasemonitoringandmanagementtools,itspossibletomitigatetheupgradecostsbypinpointingthecauseoftheproblemandidentifyingappropriatestepsforremediatingit。

Forexample,itcanbecost-effectivetoaddmorememoryorimplementfasterstoragedevicestoresolveI/Obottlenecksaffectingadatabasesperformance。