97 lines
6.5 KiB
HTML
97 lines
6.5 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html
|
|
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html lang="en-us" xml:lang="en-us">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<meta name="security" content="public" />
|
|
<meta name="Robots" content="index,follow" />
|
|
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
|
|
<meta name="DC.Type" content="reference" />
|
|
<meta name="DC.Title" content="Service jobs for TCP/IP servers" />
|
|
<meta name="abstract" content="The DDM TCP/IP server does not use transaction program names (TPNs) as the Advanced Program-to-Program Communication (APPC) server does. However, the use of prestart jobs by the TCP/IP server provides a way to start a service job in that environment." />
|
|
<meta name="description" content="The DDM TCP/IP server does not use transaction program names (TPNs) as the Advanced Program-to-Program Communication (APPC) server does. However, the use of prestart jobs by the TCP/IP server provides a way to start a service job in that environment." />
|
|
<meta name="DC.subject" content="TCP/IP, service jobs" />
|
|
<meta name="keywords" content="TCP/IP, service jobs" />
|
|
<meta name="DC.Relation" scheme="URI" content="rbal1stsrvjb.htm" />
|
|
<meta name="DC.Relation" scheme="URI" content="rbal1qrwoptions.htm" />
|
|
<meta name="DC.Relation" scheme="URI" content="../cl/strsrvjob.htm" />
|
|
<meta name="DC.Relation" scheme="URI" content="../cl/chgpje.htm" />
|
|
<meta name="DC.Relation" scheme="URI" content="../cl/dsplog.htm" />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<meta name="DC.Format" content="XHTML" />
|
|
<meta name="DC.Identifier" content="rbal1starttcp" />
|
|
<meta name="DC.Language" content="en-us" />
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
|
<!-- US Government Users Restricted Rights -->
|
|
<!-- Use, duplication or disclosure restricted by -->
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
|
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
|
|
<link rel="stylesheet" type="text/css" href="./ic.css" />
|
|
<title>Service jobs for TCP/IP servers</title>
|
|
</head>
|
|
<body id="rbal1starttcp"><a name="rbal1starttcp"><!-- --></a>
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
|
<h1 class="topictitle1">Service jobs for TCP/IP servers</h1>
|
|
<div><p>The DDM TCP/IP server does not use transaction program names (TPNs)
|
|
as the Advanced Program-to-Program Communication (APPC) server
|
|
does. However, the use of prestart jobs by the TCP/IP server provides a way
|
|
to start a service job in that environment.</p>
|
|
<div class="section"><p>Note, however, that with the introduction of the function associated
|
|
with the QRWOPTIONS data area usage, you might not need to start a service
|
|
job in many cases. That feature allows one to start traces and do other diagnostic
|
|
functions. You might still need to start a service job if you need a trace
|
|
of the connection phase of the job. </p>
|
|
</div>
|
|
<div class="section"><p>You can use the <span class="cmdname">Display Log (DSPLOG)</span> command
|
|
to find the CPI3E34 message reporting the name of the server job being used
|
|
for a given connection if the following statements are true:</p>
|
|
</div>
|
|
<div class="section"> <ul><li>You do not need to trace the actions of the server during the connect
|
|
operation</li>
|
|
<li>You choose not to use the QRWOPTIONS function</li>
|
|
<li>You have the ability to delay execution of the application requester (AR)
|
|
job until you can do some setup on the server, such as from Interactive SQL</li>
|
|
</ul>
|
|
</div>
|
|
<div class="section"><p>You can then use the <span class="cmdname">Start Service Job (STRSRVJOB)</span> command.</p>
|
|
</div>
|
|
<div class="section"><p>If you do need to trace the connect statement, or do not have
|
|
time to do manual setup on the server after the connection, you will need
|
|
to anticipate what prestart job will be used for the connection before it
|
|
happens. One way to do that is to prevent other users from connecting during
|
|
the time of your test, if possible, and end all of the prestart jobs except
|
|
one.</p>
|
|
</div>
|
|
<div class="section"><p>You can force the number of prestart jobs to be 1 by setting the
|
|
following parameters on the <span class="cmdname">Change Prestart Job Entry (CHGPJE)</span> command
|
|
for QRWTSRVR running in QSYSWRK to the values specified here: </p>
|
|
<ul><li>Initial number of jobs: <strong>1</strong></li>
|
|
<li>Threshold: <strong>1</strong></li>
|
|
<li>Additional number of jobs: <strong>0</strong></li>
|
|
<li>Maximum number of jobs: <strong>1</strong></li>
|
|
</ul>
|
|
</div>
|
|
<div class="section"><p>If you use this technique, be sure to change the parameters back
|
|
to values that are reasonable for your environment; otherwise, users will
|
|
get the message that <samp class="codeph">'A connection with a remote socket was reset
|
|
by that socket'</samp> when trying to connect when the one prestart job
|
|
is busy.</p>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="rbal1stsrvjb.htm" title="When an application uses Distributed Relational Database Architecture (DRDA), the SQL statements are run in the application server job. Because of this, you might need to start debug or a job trace for the application server job that is running on the i5/OS operating system. The technique for doing this differs based on the use of either Advanced Program-to-Program Communication (APPC) or TCP/IP.">Start a service job to diagnose application server problems</a></div>
|
|
</div>
|
|
<div class="relconcepts"><strong>Related concepts</strong><br />
|
|
<div><a href="rbal1qrwoptions.htm" title="When DDM or DRDA TCP/IP server jobs are initiated, they look for a data area in which the user can specify diagnostic and other options. The name is QRWOPTIONS, and it must reside in the QGPL library to take effect. It consists of a string of 48 characters.">QRWOPTIONS data area</a></div>
|
|
</div>
|
|
<div class="relinfo"><strong>Related information</strong><br />
|
|
<div><a href="../cl/strsrvjob.htm">Start Service Job (STRSRVJOB) command</a></div>
|
|
<div><a href="../cl/chgpje.htm">Change Prestart Job Entry (CHGPJE) command</a></div>
|
|
<div><a href="../cl/dsplog.htm">Display Log (DSPLOG) command</a></div>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html> |