1<!--$Id: rep_limit.so,v 1.27 2008/04/29 22:39:21 mbrey Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB: DB_ENV->rep_set_limit</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<table width="100%"><tr valign=top> 12<td> 13<b>DB_ENV->rep_set_limit</b> 14</td> 15<td align=right> 16<a href="../api_c/api_core.html"><img src="../images/api.gif" alt="API"></a> 17<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td> 18</tr></table> 19<hr size=1 noshade> 20<tt> 21<b><pre> 22#include <db.h> 23<p> 24int 25DB_ENV->rep_set_limit(DB_ENV *env, u_int32_t gbytes, u_int32_t bytes); 26<p> 27int 28DB_ENV->rep_get_limit(DB_ENV *dbenv, u_int32_t *gbytesp, u_int32_t *bytesp); 29</pre></b> 30<hr size=1 noshade> 31<b>Description: DB_ENV->rep_set_limit</b> 32<p>The DB_ENV->rep_set_limit method sets a byte-count limit on the amount of data 33that will be transmitted from a site in response to a single message 34processed by the <a href="../api_c/rep_message.html">DB_ENV->rep_process_message</a> method. The limit is not a hard limit, 35and the record that exceeds the limit is the last record to be sent.</p> 36<p>Record transmission throttling is turned on by default with a limit of 3710MB.</p> 38<p>If the values passed to the DB_ENV->rep_set_limit method are both zero, then 39the transmission limit is turned off.</p> 40<p>The database environment's replication subsystem may also be configured using the 41environment's <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file. The syntax of the entry in that 42file is a single line with the string "rep_set_limit", one or more whitespace 43characters, and the limit specified in two parts: the gigabytes and the bytes parameters. 44For example, "rep_set_limit 0 1048576" sets a 1 megabyte limit. 45Because the <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file is read when the database environment 46is opened, it will silently overrule configuration done before that 47time.</p> 48<p>The DB_ENV->rep_set_limit method configures a database environment, not only operations 49performed using the specified <a href="../api_c/env_class.html">DB_ENV</a> handle.</p> 50<p>The DB_ENV->rep_set_limit method may be called at any time during the life of the 51application.</p> 52<p>The DB_ENV->rep_set_limit method 53returns a non-zero error value on failure 54and 0 on success. 55</p> 56<b>Parameters</b> <br> 57 <b>bytes</b><ul compact><li>The <b>gbytes</b> and <b>bytes</b> parameters specify the maximum 58number of bytes that will be sent in a single call to <a href="../api_c/rep_message.html">DB_ENV->rep_process_message</a> method.</ul> 59 <b>gbytes</b><ul compact><li>The <b>gbytes</b> and <b>bytes</b> parameters specify the maximum 60number of bytes that will be sent in a single call to <a href="../api_c/rep_message.html">DB_ENV->rep_process_message</a> method.</ul> 61<br> 62<hr size=1 noshade> 63<b>Description: rep_get_limit</b> 64<p>The DB_ENV->rep_get_limit method may be called at any time during the life of the 65application.</p> 66<p>The DB_ENV->rep_get_limit method 67returns a non-zero error value on failure 68and 0 on success. 69</p> 70<b>Parameters</b> <br> 71 <b>bytesp</b><ul compact><li>The <b>bytesp</b> parameter references memory into which 72 the additional bytes of memory in the current transmit limit is copied.</ul> 73 <b>gbytesp</b><ul compact><li>The <b>gbytesp</b> parameter references memory into which 74 the gigabytes of memory in the in the current transmit limit is copied.</ul> 75<br> 76<hr size=1 noshade> 77<br><b>Class</b> 78<a href="../api_c/env_class.html">DB_ENV</a> 79<br><b>See Also</b> 80<a href="../api_c/rep_list.html">Replication and Related Methods</a> 81</tt> 82<table width="100%"><tr><td><br></td><td align=right> 83<a href="../api_c/api_core.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a> 84</td></tr></table> 85<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 86</body> 87</html> 88
