mirror of
https://github.com/berkeleydb/libdb.git
synced 2024-11-17 09:36:24 +00:00
154 lines
6.3 KiB
HTML
154 lines
6.3 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>DbEnv::rep_set_priority()</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="rep.html" title="Chapter 11. Replication Methods" />
|
||
<link rel="prev" href="repnsites.html" title="DbEnv::rep_set_nsites()" />
|
||
<link rel="next" href="repset_request.html" title="DbEnv::rep_set_request()" />
|
||
</head>
|
||
<body>
|
||
<div xmlns="" class="navheader">
|
||
<div class="libver">
|
||
<p>Library Version 11.2.5.2</p>
|
||
</div>
|
||
<table width="100%" summary="Navigation header">
|
||
<tr>
|
||
<th colspan="3" align="center">DbEnv::rep_set_priority()</th>
|
||
</tr>
|
||
<tr>
|
||
<td width="20%" align="left"><a accesskey="p" href="repnsites.html">Prev</a> </td>
|
||
<th width="60%" align="center">Chapter 11.
|
||
Replication Methods
|
||
</th>
|
||
<td width="20%" align="right"> <a accesskey="n" href="repset_request.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="reppriority"></a>DbEnv::rep_set_priority()</h2>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<pre class="programlisting">#include <db_cxx.h>
|
||
|
||
int
|
||
DbEnv::rep_set_priority(u_int32_t priority); </pre>
|
||
<p>
|
||
The <code class="methodname">DbEnv::rep_set_priority()</code> method specifies the database
|
||
environment's priority in replication group elections. A special
|
||
value of 0 indicates that this environment cannot be a replication
|
||
group master.
|
||
</p>
|
||
<p>
|
||
The database environment's replication subsystem may also be
|
||
configured using the environment's <a href="../../programmer_reference/env_db_config.html#env_db_config.DB_CONFIG" class="olink">DB_CONFIG</a> file. The syntax
|
||
of the entry in that file is a single line with the string
|
||
"rep_set_priority", one or more whitespace characters, and the
|
||
priority of this site. For example, "rep_set_priority 1" sets the
|
||
priority of this site to 1. Because the <a href="../../programmer_reference/env_db_config.html#env_db_config.DB_CONFIG" class="olink">DB_CONFIG</a> file is read
|
||
when the database environment is opened, it will silently overrule
|
||
configuration done before that time.
|
||
</p>
|
||
<p>
|
||
Note that if the application never explicitly sets a priority, then a default value of 100
|
||
is used.
|
||
</p>
|
||
<p>
|
||
The <code class="methodname">DbEnv::rep_set_priority()</code> method configures a database
|
||
environment, not only operations performed using the specified
|
||
<a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a> handle.
|
||
</p>
|
||
<p>
|
||
The <code class="methodname">DbEnv::rep_set_priority()</code> method may be called at any time
|
||
during the life of the application.
|
||
</p>
|
||
<p>
|
||
The <code class="methodname">DbEnv::rep_set_priority()</code> <span>
|
||
|
||
<span>
|
||
method either returns a non-zero error value or throws an
|
||
exception that encapsulates a non-zero error value on
|
||
failure, and returns 0 on success.
|
||
</span>
|
||
</span>
|
||
</p>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3640961"></a>Parameters</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="sect3" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h4 class="title"><a id="id3640950"></a>priority</h4>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
The priority of this database environment in the replication group. The
|
||
priority must be a non-zero integer, or 0 if this environment cannot be a
|
||
replication group master. (See
|
||
<a href="../../programmer_reference/rep_pri.html" class="olink">Replication environment priorities</a>
|
||
for more information).
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3640812"></a>Class</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
<a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>
|
||
</p>
|
||
</div>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3640968"></a>See Also</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
<a class="xref" href="rep.html#replist" title="Replication and Related Methods">Replication and Related Methods</a>
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="navfooter">
|
||
<hr />
|
||
<table width="100%" summary="Navigation footer">
|
||
<tr>
|
||
<td width="40%" align="left"><a accesskey="p" href="repnsites.html">Prev</a> </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="u" href="rep.html">Up</a>
|
||
</td>
|
||
<td width="40%" align="right"> <a accesskey="n" href="repset_request.html">Next</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td width="40%" align="left" valign="top">DbEnv::rep_set_nsites() </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="h" href="index.html">Home</a>
|
||
</td>
|
||
<td width="40%" align="right" valign="top"> DbEnv::rep_set_request()</td>
|
||
</tr>
|
||
</table>
|
||
</div>
|
||
</body>
|
||
</html>
|