71 lines
6.3 KiB
HTML
71 lines
6.3 KiB
HTML
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="How job queues are allocated to a subsystem" />
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<meta name="abstract" content="A job queue can be associated with several subsystems but it can only be allocated to one subsystem at a time. When the subsystem is started, the subsystem monitor tries to allocate each job queue defined in the subsystem job queue entries." />
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<title>How job queues are allocated to a subsystem</title>
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</head>
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<body id="jobqhowallocated"><a name="jobqhowallocated"><!-- --></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">How job queues are allocated to a subsystem</h1>
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<div><p>A job queue can be associated with several subsystems but it can
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only be allocated to one subsystem at a time. When the subsystem is started,
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the subsystem monitor tries to allocate each job queue defined in the subsystem
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job queue entries.</p>
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<p>If a job queue was already allocated by another subsystem, the first subsystem
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must end and deallocate the job queue before the second subsystem can allocate
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it. After it is started, this second subsystem allocates job queues assigned
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to it as they become available. </p>
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<p>If a job queue does not exist when the subsystem is started, the job queue
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is allocated to the subsystem when one of the following occurs: </p>
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<ul><li>The job queue is created.</li>
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<li>A job queue is renamed with the name defined to the subsystem.</li>
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<li>A job queue is moved to another library and the resulting qualified name
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matches the name in the subsystem description.</li>
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<li>The library containing the job queue is renamed and the resulting qualified
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name matches the name in the subsystem description.</li>
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</ul>
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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="rzaksaboutjobqueue.htm" title="A job queue contains an ordered list of jobs waiting to be processed by a subsystem. The job queue is the first place that a submitted batch job goes before becoming active in a subsystem. The job is held here until a number of factors are met.">Job queues</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzaksorderedlist.htm" title="The ordered list refers to the order in which jobs appear on the job queue. The availability, priority, and the date and time values help determine the order of jobs on the job queue.">Ordered list</a></div>
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<div><a href="rzakshowjobqueuewrk.htm" title="Job queues are allocated by a subsystem via the job queue entry. Jobs can be placed on a job queue even if the subsystem has not been started. When the subsystem is started, it processes the jobs on the queue.">How a job queue works</a></div>
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<div><a href="rzaksjobqhowtaken.htm" title="Different factors determine how the jobs are selected from a job queue and started.">How jobs are taken from a job queue</a></div>
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<div><a href="rzaksjobqentryabout.htm" title="A job queue entry identifies a job queue from which jobs are selected for running in the subsystem. There are five parameters in the job queue entry that control how the job queue should be handled.">Job queue entry</a></div>
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<div><a href="rzaksjobqdoineed2.htm" title="In many cases, using QBATCH as the only job queue with the default of one active job will be adequate for your needs. If this is not adequate, you might want to have multiple job queues so that some job queues are active during normal working hours, some are for special purposes, and some are active after normal working hours.">Multiple job queues</a></div>
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<div><a href="rzakshowjobsaretakenfrommultiplejobqueues.htm" title="A subsystem processes jobs from a job queue based on sequence number. A subsystem can have more than one job queue entry and can therefore allocate more than one job queue.">How jobs are taken from multiple job queues</a></div>
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<div><a href="rzaksjobqsecurity.htm" title="You can maintain a level of security with your job queue by authorizing only certain persons (user profiles) to that job queue. In general, there are three ways that a user can become authorized to control a job queue (for example, hold or release the job queue).">Job queue security</a></div>
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</div>
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</div>
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</body>
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