143 lines
9.4 KiB
HTML
143 lines
9.4 KiB
HTML
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="dc.language" scheme="rfc1766" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<meta name="dc.date" scheme="iso8601" content="2005-09-06" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow"/>
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<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))' />
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<title>Directory Server (LDAP) - Manage connection properties</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<img src="delta.gif" alt="Start of change" />
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<a name="rzahymanconnprop"></a>
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<h2 id="rzahymanconnprop">Manage connection properties</h2>
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<p>The ability to manage connection properties enables you to prevent clients
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from locking up the server. It also ensures that the administrator always
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has access to the server in the cases that the backend is kept busy with long-running
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tasks. Management of the connection properties is done through the Web administration
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tool. </p>
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<a name="wq149"></a>
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<div class="notetitle" id="wq149">Note:</div>
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<div class="notebody">These selections are displayed only if you are logged
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in as the administrator or a member of the administration group on a server
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that supports this function.</div>
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<p>To set connection properties, perform the following steps:</p>
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<ol type="1">
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<li>Expand the <span class="bold">Server administration</span> category
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in the navigation area and click <span class="bold">Manage connection
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properties</span>.
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<a name="wq151"></a>
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<div class="notetitle" id="wq151">Note:</div>
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<div class="notebody">To change server configuration settings using
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the tasks in the Server administration category of the Web Administration
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tool, you must authenticate to the server as an i5/OS user profile that has
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*ALLOBJ and IOSYSCFG special authorities. This can be done by authenticating
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as a projected user with the password for that profile. To bind as a projected
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user from the Web administration tool, enter a username of the form <tt class="xph">os400-profile=MYUSERNAME,cn=accounts,os400-sys=MYSYSTEM.COM</tt>, where MYUSERNAME
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and the MYSYSTEM.COM strings are replaced with your user profile name and
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the configured system projection suffix, respectively.</div></li>
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<li>Select the <span class="bold">General</span> tab.</li>
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<li>Set the anonymous connection setting. The <span class="bold">Allow
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anonymous connections</span> check box is already selected for you so that anonymous
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binds are allowed. This is the default setting. You can click the check box
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to deselect the <span class="bold">Allow anonymous connections</span> function.
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This action causes the server to unbind all anonymous connections.
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<a name="wq152"></a>
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<div class="notetitle" id="wq152">Note:</div>
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<div class="notebody">Some applications might fail if you disallow anonymous binds.</div></li>
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<li>In the <span class="bold">Cleanup threshold for anonymous connections</span> field, set the threshold number to initiate the unbinding of anonymous
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connections. You can specify a number between 0 and 65535 .
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<a name="wq153"></a>
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<div class="notetitle" id="wq153">Note:</div>
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<div class="notebody">The actual maximum number is limited by the number of files permitted per
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process. On UNIX systems you can use the <span class="bold">ulimit -a</span> command
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to determine the limits. On Windows systems this is a fixed number.</div>The default setting is 0. When this number of anonymous connections
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is exceeded, connections are cleaned up based on the idle timeout limit that
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you set in the <span class="bold">Idle time out</span> field.</li>
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<li>In the <span class="bold">Cleanup threshold for authenticated connections</span> field, set the threshold number to initiate the unbinding of authenticated
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connections. You can specify a number between 0 and 65535 .
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<a name="wq154"></a>
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<div class="notetitle" id="wq154">Note:</div>
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<div class="notebody">The actual maximum number is limited by the number of
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files permitted per process. On UNIX systems you can use the ulimit -a command
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to determine the limits. On Windows systems this is a fixed number.</div>The default setting is 1100. When this number of authenticated connections
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is exceeded, connections are cleaned up based on the idle timeout limit that
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you set in the <span class="bold">Idle time out</span> field.</li>
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<li>In the <span class="bold">Cleanup threshold for all connections</span> field, set the threshold number to initiate the unbinding of all connections.
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You can specify a number between 0 and 65535 .
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<a name="wq155"></a>
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<div class="notetitle" id="wq155">Note:</div>
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<div class="notebody">The actual maximum
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number is limited by the number of files permitted per process. On UNIX systems
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you can use the ulimit -a command to determine the limits. On Windows systems
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this is a fixed number.</div>The default setting is 1200. When
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this total number of connections is exceeded, connections are cleaned up based
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on the idle timeout limit that you set in the <span class="bold">Idle
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time out</span> field.</li>
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<li>In the <span class="bold">Idle timeout limit</span> field, set the
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number of seconds that a connection can be idle before it is closed by a cleanup
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process. You can specify a number between 0 and 65535 .
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<a name="wq156"></a>
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<div class="notetitle" id="wq156">Note:</div>
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<div class="notebody">The actual maximum number is limited by the number of files permitted per
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process. On UNIX systems you can use the ulimit -a command to determine the
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limits. On Windows systems this is a fixed number.</div>The default
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setting is 300. When a cleanup process is initiated, any connections, subject
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to the process, that exceed the limit are closed.</li>
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<li>In the <span class="bold">Result timeout limit</span> field, set
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the number of seconds that are allowed between write attempts. You can specify
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a number between 0 and 65535 . The default setting is 120. Any connections
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that exceed this limit are ended.
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<a name="wq157"></a>
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<div class="notetitle" id="wq157">Note:</div>
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<div class="notebody">This applies to Windows systems
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only. A connection that exceeds 30 seconds is automatically dropped by the
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operating system. Therefore, this <span class="bold">Result timeout
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limit</span> setting is overridden by the operating system after 30 seconds.</div></li>
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<li>Click the <span class="bold">Emergency thread</span> tab.</li>
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<li>Set the emergency thread setting. The <span class="bold">Enable
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emergency thread</span> check box is already selected for you so that the emergency
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thread can be activated. This is the default setting. You can click the check
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box to deselect the <span class="bold">Enable emergency thread</span> function.
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This action prevents the emergency thread from being activated.</li>
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<li>In the <span class="bold">Pending request threshold</span> field,
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set the number limit for work requests that activate the emergency thread.
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Specify a number between 0 and 65535 to set the limit of work requests that
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can be in the queue before activating the emergency thread. The default is
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50. When the specified limit is exceeded, the emergency thread is activated.</li>
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<li>In the <span class="bold">Time threshold</span> field, set the number
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of minutes that can elapse since the last work item was removed from the queue.
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If there are work items in the queue and this time limit is exceeded, the
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emergency thread is activated. You can specify a number between 0 and 240
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. The default setting is 5.</li>
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<li>Select from the drop-down menu, the criteria to be used to activate the
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emergency thread. You can select:
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<ul>
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<li><span class="bold">Size only:</span> The emergency thread is activated only
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when the queue exceeds the specified amount of pending work items.</li>
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<li><span class="bold">Time only:</span> The emergency thread is activated only
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when the time limit between removed work items exceeds the specified amount.</li>
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<li><span class="bold">Size or time:</span> The emergency thread is activated
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when either the queue size or time threshold exceeds the specified amounts.</li>
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<li><span class="bold">Size and time:</span> The emergency thread is activated
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when both the queue size and the time threshold exceed the specified amounts.</li></ul>Size and time is the default setting.</li>
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<li>Click <span class="bold">OK</span></li></ol>
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<p>For more information, see <a href="rzahymanservconn.htm#rzahymanservconn">Manage server connections</a>.</p><img src="deltaend.gif" alt="End of change" />
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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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