Applying traces to a started task

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Applying traces to a started task

Simon Exton explains how to add traces to a started task

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  • 1) Issue the following MVS modify commands to enable started task tracing: /F stcname,TRACE,YES,CMN /F stcname,TRACE,YES,SER /F stcname,TRACE,ON,U=userid /F stcname,NETTRACE,ON,U=userid,SIZE=4096 /F stcname,HLXTRACE,ON,EXIT=*,USER=* 2) Recreate the problem. 3) Once recreated, immediately disable all the traces by replacing 'YES' with 'NO' and 'ON' with 'OFF' in each of the above modify commands. 4) Send Support a copy of: a) ALL of the output generated by the Server and HLLX (if active) started tasks (i.e. JESMSGLG,JESJCL, SERPRINT, etc.). Please ensure that any downloaded output files have a record length of at least 161 to avoid truncating the trace data.
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  • 1) Issue the following MVS modify commands to enable started task tracing: /F stcname,TRACE,YES,CMN /F stcname,TRACE,YES,SER /F stcname,TRACE,ON,U=userid /F stcname,NETTRACE,ON,U=userid,SIZE=4096 /F stcname,HLXTRACE,ON,EXIT=*,USER=* 2) Recreate the problem. 3) Once recreated, immediately disable all the traces by replacing 'YES' with 'NO' and 'ON' with 'OFF' in each of the above modify commands. 4) Send Support a copy of: a) ALL of the output generated by the Server and HLLX (if active) started tasks (i.e. JESMSGLG,JESJCL, SERPRINT, etc.). Please ensure that any downloaded output files have a record length of at least 161 to avoid truncating the trace data.
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