How to enable additional logging/debug in TrueSight Presentation Server (TSPS)?
How to determine which debug should be enabled for a specific problem?

The following commands can be used:

    cd C:\Program Files\BMC Software\TrueSightPServer\truesightpserver\bin
    tssh logger list
    (Above command lists logger name options, current logging level, and affected files)
    tssh logger edit -n <logger name> -m <file size in Mb> -b <backup file count>

Example: tssh logger edit -n CMA -m 10 -b 2

To enable debug:
    tssh logger debug on -n <logger name>

To disable debug:
    tssh logger debug off -n <logger name>
 
Note - TrueSight Presentation Server now supports the following commands to enable and disable all logger from 11.0.00 Fix Pack 3:

     tssh logger debug on -n all
     tssh logger debug off -n all

Details about this enhancement available on https://docs.bmc.com/docs/TSOperations/110/11-0-00-003-fix-pack-3-833546319.html#id-11.0.00.003:FixPack3-Enhancements

Following table will help to determine which debug logger name associated with module/component, This will help to enable selective debug to avoid potential performance issues.
 

Logger Name	Affected Module(s)/Component(s)
ROOT	TrueSight Root Level and Generic Level Logging
AV	App Visibility
AppCntxtESQuery	Application
AppCntxtEventAnalyzer	Event impact calculation on application/device/group
AppContextApplication	Application & Services
AppContextGroup	Group Configuration
CMA	CMA
CMA_AUDIT	CMA
Dashboard	Dashboard Framework
EUEM	Real User Analyzer component
I18N	Localization
IMDashlets	TSIM dashlets
ITDAProvider	ITDA Dashlets
InfraApp	Devices,Groups and Events View
ItdaAudit	ITDA Component registration
MobileApp	Mobile App
OMPROVIDER	API for BCO
POLICY_ENGINE	Policy Engine
RestServiceAudit	Rest calls audit
SmartReportingAudit	Smart Reporting Component registration
TSIDataAdapter	TSI Data Adapter
TS_DEFAULT	For those modules which haven't specified the specific log files
TsiAudit	TS Intelligence
TsimAudit	TSIM Component , Services
TspAudit	TS Pulse
UserAccount	User Authentication and Authorization
UserEntityNotification	User Authentication and Authorization
UserManagement	User Authentication and Authorization
coApp	CO Application
coRest	CO Rest Calls
com.bmc.bpm.patrol.deploykm	KMPush Functionality / KM Package And PATROL Agent Deployment
com.bmc.bpm.patrol.kmpush	KMPush Functionality / KM Package And PATROL Agent Deployment
com.bmc.sas.ngp.service.message.impl	Messaging Services
com.bmc.truesight.pca	Event PCA
com.bmc.truesight.platform	Platform framework
com.bmc.truesight.rest.formatter.GenericMessageFormatHandler	Rest Calls
com.bmc.truesight.usermgmt	User Authentication and Authorization
com.bmc.tsps.common.services	UI menu
com.bmc.unifiedadmin.persistence.service.kmpush	KMPush
com.mchange	Database connections
log.managePAactions	PA Actions
org.elasticsearch	Events/HA/TSPS Server
org.hibernate	Database queries
org.infinispan	Cache
org.jgroups	HA/Messaging
org.jnp.interfaces.NamingContext	Messaging
com.bmc.truesight.api.highavailability.splitbrain.monitor	Split Brain monitoring
com.bmc.truesight.api.highavailability.splitbrain.monitor.HighAvailailityNodeStatusUtil	Split Brain monitoring