mirror of
https://github.com/berkeleydb/libdb.git
synced 2024-11-16 17:16:25 +00:00
83 lines
4.1 KiB
HTML
83 lines
4.1 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||
<!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">
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
|
||
<title>rep_set_request</title>
|
||
<link rel="stylesheet" href="apiReference.css" type="text/css" />
|
||
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
|
||
<link rel="start" href="index.html" title="Berkeley DB C API Reference" />
|
||
<link rel="up" href="configuration_reference.html" title="Appendix D. DB_CONFIG Parameter Reference" />
|
||
<link rel="prev" href="rep_set_priority_parameter.html" title="rep_set_priority" />
|
||
<link rel="next" href="rep_set_timeout_parameter.html" title="rep_set_timeout" />
|
||
</head>
|
||
<body>
|
||
<div xmlns="" class="navheader">
|
||
<div class="libver">
|
||
<p>Library Version 11.2.5.3</p>
|
||
</div>
|
||
<table width="100%" summary="Navigation header">
|
||
<tr>
|
||
<th colspan="3" align="center">rep_set_request</th>
|
||
</tr>
|
||
<tr>
|
||
<td width="20%" align="left"><a accesskey="p" href="rep_set_priority_parameter.html">Prev</a> </td>
|
||
<th width="60%" align="center">Appendix D. DB_CONFIG Parameter Reference</th>
|
||
<td width="20%" align="right"> <a accesskey="n" href="rep_set_timeout_parameter.html">Next</a></td>
|
||
</tr>
|
||
</table>
|
||
<hr />
|
||
</div>
|
||
<div class="sect1" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h2 class="title" style="clear: both"><a id="rep_set_request_parameter"></a>rep_set_request</h2>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
Sets a threshold for the minimum and maximum
|
||
time that a client waits before requesting retransmission of a missing message.
|
||
</p>
|
||
<p>
|
||
The syntax of this parameter in the <a href="../../programmer_reference/env_db_config.html#env_db_config.DB_CONFIG" class="olink">DB_CONFIG</a> file is a
|
||
single line with the string
|
||
<code class="literal">rep_set_request</code>, one or more whitespace
|
||
characters, and the request time specified in two parts:
|
||
the min and the max. Specifically, if the client detects a
|
||
gap in the sequence of incoming log records or database
|
||
pages, Berkeley DB will wait for at least min microseconds
|
||
before requesting retransmission of the missing record.
|
||
Berkeley DB will double that amount before requesting the
|
||
same missing record again, and so on, up to a maximum
|
||
threshold of max microseconds.
|
||
</p>
|
||
<p>By default the minimum is 40000 and the maximum is 1280000 (1.28 seconds). These defaults
|
||
are fairly arbitrary and the application likely needs to adjust these. The values should be
|
||
based on expected load and performance characteristics of the master and client host
|
||
platforms and transport infrastructure as well as round-trip message time.
|
||
</p>
|
||
<p>For more information, see <a class="xref" href="repset_request.html" title="DB_ENV->rep_set_request()">DB_ENV->rep_set_request()</a>. </p>
|
||
</div>
|
||
<div class="navfooter">
|
||
<hr />
|
||
<table width="100%" summary="Navigation footer">
|
||
<tr>
|
||
<td width="40%" align="left"><a accesskey="p" href="rep_set_priority_parameter.html">Prev</a> </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="u" href="configuration_reference.html">Up</a>
|
||
</td>
|
||
<td width="40%" align="right"> <a accesskey="n" href="rep_set_timeout_parameter.html">Next</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td width="40%" align="left" valign="top">rep_set_priority </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="h" href="index.html">Home</a>
|
||
</td>
|
||
<td width="40%" align="right" valign="top"> rep_set_timeout</td>
|
||
</tr>
|
||
</table>
|
||
</div>
|
||
</body>
|
||
</html>
|