1<!--$Id: repl.so,v 1.10 2005/10/19 19:11:22 bostic 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 Reference Guide: Release 4.3: Replication</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><b><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></b></td> 13<td align=right><a href="../upgrade.4.3/enomem.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.4.3/rtc.html"><img src="../../images/next.gif" alt="Next"></a> 14</td></tr></table> 15<p align=center><b>Release 4.3: Replication</b></p> 16<p>The 4.3 release removes support for logs-only replication clients. Use 17of the DB_REP_LOGSONLY flag to the <a href="../../api_c/rep_start.html">DB_ENV->rep_start</a> should be replaced 18with the <a href="../../api_c/repmgr_start.html#DB_REP_CLIENT">DB_REP_CLIENT</a> flag.</p> 19<p>The 4.3 release adds two new arguments to the <a href="../../api_c/rep_elect.html">DB_ENV->rep_elect</a> method, 20<b>nvotes</b> and <b>flags</b>. The <b>nvotes</b> argument sets the 21required number of replication group members that must participate in 22an election in order for a master to be declared. For backward 23compatibility, set the <b>nvotes</b> argument to 0. The flags argument 24is currently unused and should be set to 0. See <a href="../../api_c/rep_elect.html">DB_ENV->rep_elect</a> method or 25"Replication Elections" for more information.</p> 26<p>In the 4.3 release it is no longer necessary to do a database 27environment hot backup to initialize a replication client. All that is 28needed now is for the client to join the replication group. Berkeley DB will 29perform an internal backup from the master to the client automatically 30and will run recovery on the client to bring it up to date with the 31master.</p> 32<table width="100%"><tr><td><br></td><td align=right><a href="../upgrade.4.3/enomem.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.4.3/rtc.html"><img src="../../images/next.gif" alt="Next"></a> 33</td></tr></table> 34<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 35</body> 36</html> 37
