https://community.qlik.com/t5/Official-Support-Articles/Preventing-DeadLock-in-Tac-s-database/ta-p/2151402 <DIV class="talend-tkb-migrated-content">The TAC Webapp is designed to do the modifications in the TAC DB in an "isolated way" (no conflicts between the different modifications) As the setting :<BR />database.server.selectForUpdate.enabled=true<BR />is useless for the TAC Webapp and is known to cause some issues , it is recommended to set it to false for the TAC :<BR />database.server.selectForUpdate.enabled=false<BR /><BR />Other operations might be required are&nbsp;<BR /><BR />1. truncate temp, work folder under tomcat<BR />2. restart Tac<BR />3. Set the Task action on unavailable JobServer to "Reset" task instead of "Wait" indefinitely<BR /><BR />&nbsp;</DIV> Fri, 09 Feb 2024 18:22:49 GMT TalendSolutionExpert 2024-02-09T18:22:49Z https://community.qlik.com/t5/Official-Support-Articles/Preventing-DeadLock-in-Tac-s-database/ta-p/2151402 <DIV class="talend-tkb-migrated-content">The TAC Webapp is designed to do the modifications in the TAC DB in an "isolated way" (no conflicts between the different modifications) As the setting :<BR />database.server.selectForUpdate.enabled=true<BR />is useless for the TAC Webapp and is known to cause some issues , it is recommended to set it to false for the TAC :<BR />database.server.selectForUpdate.enabled=false<BR /><BR />Other operations might be required are&nbsp;<BR /><BR />1. truncate temp, work folder under tomcat<BR />2. restart Tac<BR />3. Set the Task action on unavailable JobServer to "Reset" task instead of "Wait" indefinitely<BR /><BR />&nbsp;</DIV> Fri, 09 Feb 2024 18:22:49 GMT https://community.qlik.com/t5/Official-Support-Articles/Preventing-DeadLock-in-Tac-s-database/ta-p/2151402 TalendSolutionExpert 2024-02-09T18:22:49Z