106 lines
6.0 KiB
HTML
106 lines
6.0 KiB
HTML
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<meta name="DC.Title" content="Jobs system values: When a function in a multi-threaded job is not threadsafe" />
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<meta name="abstract" content="Specifies the action to take when a function is not threadsafe. (QMLTTHDACN)" />
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<meta name="description" content="Specifies the action to take when a function is not threadsafe. (QMLTTHDACN)" />
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<title>Jobs system values: When a function in a multi-threaded job is not
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threadsafe</title>
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</head>
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<body id="rzakzqmltthdacn"><a name="rzakzqmltthdacn"><!-- --></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">Jobs system values: When a function in a multi-threaded job is not
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threadsafe</h1>
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<div><p>Specifies the action to take when a function is not threadsafe.
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(QMLTTHDACN)</p>
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<p><span class="uicontrol">When a function in a multi-threaded job is not threadsafe</span>,
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also known as <span class="uicontrol">QMLTTHDACN</span>, is a member of the jobs
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category of i5/OS™ system
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values. You can use this system value to specify the action to take when a
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function is not threadsafe. To learn more, keep reading.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th colspan="2" valign="top" class="firstcol" id="d0e31">Quick reference</th>
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</tr>
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</thead>
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<tbody><tr><th valign="top" class="firstcol" id="d0e35" headers="d0e31 ">Location</th>
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<td valign="top" headers="d0e35 d0e31 ">In iSeries™ Navigator,
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select your system, <span class="menucascade"><span class="uicontrol"></span> > <span class="uicontrol">Configuration
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and Service</span> > <span class="uicontrol">System Values</span> > <span class="uicontrol">Jobs</span> > <span class="uicontrol">Threads</span></span></td>
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</tr>
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<tr><th valign="top" class="firstcol" id="d0e53" headers="d0e31 ">Special authority</th>
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<td valign="top" headers="d0e53 d0e31 ">All object (*ALLOBJ) and security administrator (*SECADM)</td>
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</tr>
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<tr><th valign="top" class="firstcol" id="d0e58" headers="d0e31 ">Default value</th>
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<td valign="top" headers="d0e58 d0e31 ">Perform the function that is not threadsafe and send message to job
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log</td>
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</tr>
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<tr><th valign="top" class="firstcol" id="d0e63" headers="d0e31 ">Changes take effect</th>
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<td valign="top" headers="d0e63 d0e31 ">Immediately</td>
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</tr>
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<tr><th valign="top" class="firstcol" id="d0e68" headers="d0e31 ">Lockable</th>
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<td valign="top" headers="d0e68 d0e31 ">No</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="section"><h4 class="sectiontitle">What can I do with this system value?</h4><p>Specifies
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the action to take when a function that may not be threadsafe is called in
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a job that is running with multiple threads. Examples of functions that support
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this system value are CL commands and exit points that run user exit programs
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that are registered through the exit program registration facility.</p>
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<p>The
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following are possible options:</p>
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<ul><li><span class="uicontrol">Do not perform the function (3)</span> <p>If a function
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is not threadsafe, the function will not be performed. This value should be
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used on systems that are running multi-threaded jobs in production mode or
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on any system for which data integrity is important.</p>
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</li>
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<li><span class="uicontrol">Perform the function that is not threadsafe (1)</span> <p>If
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a function is not threadsafe, the function will be performed. You should not
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use this value on systems that are running multi-threaded jobs in production
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mode or on any system for which data integrity is important. By selecting
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this option, you can also specify whether a message is sent to the job log
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by selecting the following option:</p>
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<ul><li><span class="uicontrol">Send message to job log (2)</span> <p>Select this option
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to perform the function that is not threadsafe and send an informational message
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to the job log.</p>
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</li>
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</ul>
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</li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">Where can I get more information about this system value?</h4><p>To
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learn more, go to the jobs system values overview topic. If you are looking
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for a specific system value or category of system values, try using the i5/OS system
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value finder.</p>
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</div>
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</div>
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<div><div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzakzjobsoverview.htm" title="Use i5/OS jobs system values to view or change system level job limits and other job defaults.">System values: Jobs overview</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="rzakzfinder.htm">System value finder</a></div>
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</div>
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</div>
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</body>
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