<!--$Id: rep_limit.so,v 1.27 2008/04/29 22:39:21 mbrey Exp $--> <!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DbEnv::rep_set_limit</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> </head> <body bgcolor=white> <table width="100%"><tr valign=top> <td> <b>DbEnv::rep_set_limit</b> </td> <td align=right> <a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a> <a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td> </tr></table> <hr size=1 noshade> <tt> <b><pre> #include <db_cxx.h> <p> int DbEnv::rep_set_limit(u_int32_t gbytes, u_int32_t bytes); <p> int DbEnv::rep_get_limit(u_int32_t *gbytesp, u_int32_t *bytesp); </pre></b> <hr size=1 noshade> <b>Description: DbEnv::rep_set_limit</b> <p>The DbEnv::rep_set_limit method sets a byte-count limit on the amount of data that will be transmitted from a site in response to a single message processed by the <a href="../api_cxx/rep_message.html">DbEnv::rep_process_message</a> method. The limit is not a hard limit, and the record that exceeds the limit is the last record to be sent.</p> <p>Record transmission throttling is turned on by default with a limit of 10MB.</p> <p>If the values passed to the DbEnv::rep_set_limit method are both zero, then the transmission limit is turned off.</p> <p>The database environment's replication subsystem may also be configured using the environment's <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file. The syntax of the entry in that file is a single line with the string "rep_set_limit", one or more whitespace characters, and the limit specified in two parts: the gigabytes and the bytes parameters. For example, "rep_set_limit 0 1048576" sets a 1 megabyte limit. Because the <a href="../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file is read when the database environment is opened, it will silently overrule configuration done before that time.</p> <p>The DbEnv::rep_set_limit method configures a database environment, not only operations performed using the specified <a href="../api_cxx/env_class.html">DbEnv</a> handle.</p> <p>The DbEnv::rep_set_limit method may be called at any time during the life of the application.</p> <p>The DbEnv::rep_set_limit 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. </p> <b>Parameters</b> <br> <b>bytes</b><ul compact><li>The <b>gbytes</b> and <b>bytes</b> parameters specify the maximum number of bytes that will be sent in a single call to <a href="../api_cxx/rep_message.html">DbEnv::rep_process_message</a> method.</ul> <b>gbytes</b><ul compact><li>The <b>gbytes</b> and <b>bytes</b> parameters specify the maximum number of bytes that will be sent in a single call to <a href="../api_cxx/rep_message.html">DbEnv::rep_process_message</a> method.</ul> <br> <hr size=1 noshade> <b>Description: rep_get_limit</b> <p>The DbEnv::rep_get_limit method may be called at any time during the life of the application.</p> <p>The DbEnv::rep_get_limit 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. </p> <b>Parameters</b> <br> <b>bytesp</b><ul compact><li>The <b>bytesp</b> parameter references memory into which the additional bytes of memory in the current transmit limit is copied.</ul> <b>gbytesp</b><ul compact><li>The <b>gbytesp</b> parameter references memory into which the gigabytes of memory in the in the current transmit limit is copied.</ul> <br> <hr size=1 noshade> <br><b>Class</b> <a href="../api_cxx/env_class.html">DbEnv</a> <br><b>See Also</b> <a href="../api_cxx/rep_list.html">Replication and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../api_cxx/api_core.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> </body> </html>