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177 lines
7.4 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>DB_ENV->rep_set_limit()</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB C API Reference" />
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<link rel="up" href="rep.html" title="Chapter 10. Replication Methods" />
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<link rel="prev" href="repconfig.html" title="DB_ENV->rep_set_config()" />
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<p>Library Version 11.2.5.3</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">DB_ENV->rep_set_limit()</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="repconfig.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 10.
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Replication Methods
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="repnsites.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="repset_limit"></a>DB_ENV->rep_set_limit()</h2>
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</div>
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</div>
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</div>
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<pre class="programlisting">#include <db.h>
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int
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DB_ENV->rep_set_limit(DB_ENV *env, u_int32_t gbytes, u_int32_t bytes); </pre>
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<p>
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The <code class="methodname">DB_ENV->rep_set_limit()</code> method sets
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record transmission throttling. This is a byte-count limit on the
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amount of data that will be transmitted from a site in response to
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a single message processed by the
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<a class="xref" href="repmessage.html" title="DB_ENV->rep_process_message()">DB_ENV->rep_process_message()</a> method.
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The limit is not a hard limit, and the record that exceeds the limit
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is the last record to be sent.
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</p>
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<p>
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Record transmission throttling is turned on by default with a limit of
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10MB.
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</p>
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<p>
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If the values passed to the <code class="methodname">DB_ENV->rep_set_limit()</code>
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method are both zero, then the transmission limit is turned off.
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</p>
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<p>
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The database environment's replication subsystem may also be
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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
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of the entry in that file is a single line with the string
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"rep_set_limit", one or more whitespace characters, and the limit
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specified in two parts: the gigabytes and the bytes values. For
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example, "rep_set_limit 0 1048576" sets a 1 megabyte limit.
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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
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is opened, it will silently overrule configuration done before
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that time.
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</p>
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<p>
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The <code class="methodname">DB_ENV->rep_set_limit()</code> method
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configures a database environment, not only operations performed
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using the specified <a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>
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handle.
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</p>
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<p>
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The <code class="methodname">DB_ENV->rep_set_limit()</code> method may be
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called at any time during the life of the application.
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</p>
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<p>
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The <code class="methodname">DB_ENV->rep_set_limit()</code> <span>
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<span>
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method returns a non-zero error value on failure and 0 on success.
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</span>
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</span>
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</p>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h3 class="title"><a id="idp62036328"></a>Parameters</h3>
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</div>
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</div>
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</div>
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<div class="sect3" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h4 class="title"><a id="idp62060704"></a>gbytes</h4>
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</div>
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</div>
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</div>
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<p>
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The <span class="bold"><strong>gbytes</strong></span> parameter specifies the number of
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gigabytes which, when added to the <span class="bold"><strong>bytes</strong></span>
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parameter, specifies the maximum number of bytes that will be sent in a
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single call to the <a class="xref" href="repmessage.html" title="DB_ENV->rep_process_message()">DB_ENV->rep_process_message()</a>
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method.
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</p>
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</div>
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<div class="sect3" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h4 class="title"><a id="idp62083960"></a>bytes</h4>
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</div>
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</div>
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</div>
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<p>
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The <span class="bold"><strong>bytes</strong></span> parameter specifies the number of
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bytes which, when added to the <span class="bold"><strong>gbytes</strong></span>
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parameter, specifies the maximum number of bytes that will be sent in a
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single call to the <a class="xref" href="repmessage.html" title="DB_ENV->rep_process_message()">DB_ENV->rep_process_message()</a>
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method.
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</p>
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</div>
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</div>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h3 class="title"><a id="idp62099592"></a>Class</h3>
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</div>
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</div>
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</div>
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<p>
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<a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>
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</p>
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</div>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h3 class="title"><a id="idp62069432"></a>See Also</h3>
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</div>
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</div>
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</div>
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<p>
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<a class="xref" href="rep.html#replist" title="Replication and Related Methods">Replication and Related Methods</a>
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</p>
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</div>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="repconfig.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="rep.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="repnsites.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">DB_ENV->rep_set_config() </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> DB_ENV->rep_set_nsites()</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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