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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Modifying Propagations</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" /> <meta name="date" content="2009-06-04T17:1:3Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Modifying Propagations" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E10703-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="tdpii_messaging022.htm" title="Previous" type="text/html" /> <link rel="next" href="tdpii_messaging024.htm" title="Next" type="text/html" /> <script src="./callback.js" type="text/javascript"></script> <noscript>Your browser does not support JavaScript. This help page requires JavaScript to render correctly.</noscript> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="tdpii_messaging022.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="tdpii_messaging024.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="CHDBGJHH" name="CHDBGJHH"></a><a id="TDPII045" name="TDPII045"></a></p> <div class="sect1"><!-- infolevel="all" infotype="General" --> <h1>Modifying Propagations<a id="sthref653" name="sthref653"></a><a id="sthref654" name="sthref654"></a></h1> <a name="BEGIN" id="BEGIN"></a> <p>You can use Enterprise Manager to modify the schedule of an existing propagation. A propagation schedule determines when and how often the propagation sends messages from one queue to another and how long each propagation lasts. You can modify the following schedule options:</p> <ul> <li> <p><span class="bold">Latency:</span> The amount of time to wait before new messages in a completely propagated queue are propagated</p> </li> <li> <p><span class="bold">Duration of the Propagation:</span> The amount of time that each individual propagation lasts</p> </li> <li> <p><span class="bold">Next Time:</span> The amount of time in between individual propagations</p> </li> </ul> <p>Typically, you modify a propagation schedule to improve the performance of a propagation in your messaging environment. The default settings for these options are usually the best settings. However, you can try different settings for these options to achieve the best performance.</p> <p class="orderedlisttitle">To modify a propagation: </p> <ol> <li> <p>In Oracle Enterprise Manager, log in to the database as the Oracle Streams administrator.</p> </li> <li> <p>Go to the Database Home page.</p> </li> <li> <p>Click <span class="bold">Data Movement</span> to open the Data Movement subpage.</p> </li> <li> <p>Click <img src="shortcut.png" alt="callback" border="0" /><a href="javascript:void(0);" onclick="redirectEMpage('STREAMS_MESSAGING');"><span class="bold">Manage Advanced Queues</span></a> to open the Streams page.</p> </li> <li> <p>Select the source queue for the propagation that you want to modify. The source queue is the queue from which the propagation sends messages to a destination queue.</p> </li> <li> <p>Select <span class="bold">Propagation Schedules</span> in the Actions list.</p> </li> <li> <p>Click <span class="bold">Go</span> to open the Propagation Schedules page.</p> </li> <li> <p>Select the propagation schedule that you want to modify.</p> </li> <li> <p>Click <span class="bold">Edit</span> to open the Edit Propagation Schedule page.</p> </li> <li> <p>Modify one or more schedule options.</p> </li> <li> <p>Click <span class="bold">Apply</span> to save your changes.</p> </li> </ol> <div class="helpinfonote"> <p><span class="bold">Note: </span>You can also use the <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=ARPLS125','newWindow').focus()"><code>DBMS_AQADM.ALTER_PROPAGATION_SCHEDULE</code></a> procedure to modify a propagation schedule.</p> </div> <div class="helpinfonotealso"> <h2>Related Topics</h2> <p><a href="tdpii_messaging005.htm#CHDEJBBD">About Propagations</a></p> <p><a href="tdpii_messaging008.htm#CHDBACBE">Tutorial: Sending Messages Between Oracle Databases</a></p> </div> </div> <!-- class="sect1" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2007, 2009, Oracle and/or its affiliates. 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