86 lines
5.0 KiB
HTML
86 lines
5.0 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Debug a running job" />
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<meta name="abstract" content="You can debug a job that is already running if you know what statements the job will run." />
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<meta name="description" content="You can debug a job that is already running if you know what statements the job will run." />
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<meta name="DC.subject" content="debugging, running job" />
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<meta name="keywords" content="debugging, running job" />
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<meta name="DC.Relation" scheme="URI" content="usejobdg.htm" />
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<meta name="DC.Relation" scheme="URI" content="../cl/dspdbg.htm" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Debug a running job</title>
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</head>
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<body id="debugrun"><a name="debugrun"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Debug a running job</h1>
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<div><p>You can debug a job that is already running if you know what statements
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the job will run.</p>
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<div class="section"> <p> For example, you may want to debug a running program if the
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job is looping or the job has not yet run a program that is to be debugged.
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The following steps allow you to debug a running job: </p>
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<ol><li>Use the <span class="cmdname">Work with Active Jobs (WRKACTJOB)</span> command to
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find the job that is running. When the display appears, enter option 5 next
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to the job to obtain the qualified job name.</li>
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<li>Enter the <span class="cmdname">Start Service Job (STRSRVJOB)</span> command as
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follows: <pre>STRSRVJOB JOB(qualified-job-name)</pre>
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</li>
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<li>Enter the <span class="cmdname">Start Debug (STRDBG)</span> command. (Entering the
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command does not stop the job from running.) <div class="note"><span class="notetitle">Note:</span> You can use the <span class="cmdname">Display
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Debug (DSPDBG)</span> command to show the call stack. However, unless the
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program is stopped for some reason, the stack is correct only for an instant,
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and the program continues to run.</div>
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</li>
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<li>If you know a statement to be run, enter the <span class="cmdname">Add Breakpoint (ADDBKP)</span> command
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to stop the job at the statement. <p>If you do not know what statements are
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being run, do the following: </p>
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<ol type="a"><li>Enter the <span class="cmdname">Add Trace (ADDTRC)</span> command.</li>
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<li>After a short time, enter the <span class="cmdname">Remove Trace (RMVTRC)</span> command
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to stop tracing the program.</li>
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<li>Enter the <span class="cmdname">Display Trace Data (DSPTRCDTA)</span> command to
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show what statements have processed. Use the trace data to determine which
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data statements to process next (for example, statements inside a program
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loop).</li>
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<li>Enter the <span class="cmdname">Add Breakpoint (ADDBKP)</span> command to stop the
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job at the statement.</li>
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</ol>
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</li>
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<li>Enter the desired debug commands when the program is stopped at a breakpoint.</li>
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</ol>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="usejobdg.htm" title="You may want to use a separate job to debug programs running in another job.">Use a job to debug another job</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../cl/dspdbg.htm">Display Debug (DSPDBG) command</a></div>
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<div><a href="../cl/dsptrcdta.htm">Display Trace Data (DSPTRCDTA) command</a></div>
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<div><a href="../cl/addbkp.htm">Add Breakpoint (ADDBKP) command</a></div>
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<div><a href="../cl/addtrc.htm">Add Trace (ADDTRC) command</a></div>
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<div><a href="../clfinder/finder.htm">CL command finder</a></div>
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</div>
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</div>
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</body>
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</html>
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