<!--$Id: rep_stat.so,v 10.23 2003/11/08 19:17:48 bostic Exp $--> <!--Copyright 1997-2003 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DbEnv::rep_stat</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> </head> <body bgcolor=white> <a name="2"><!--meow--></a> <table width="100%"><tr valign=top> <td> <h3>DbEnv::rep_stat</h3> </td> <td align=right> <a href="../../db42-devel-4.2.52/api_cxx/api_index.html"><img src="../../db42-4.2.52/images/api.gif" alt="API"></a> <a href="../../db42-devel-4.2.52/ref/toc.html"><img src="../../db42-4.2.52/images/ref.gif" alt="Ref"></a> </td></tr></table> <hr size=1 noshade> <tt> <h3><pre> #include <db_cxx.h> <p> int DbEnv::rep_stat(DB_REP_STAT **statp, u_int32_t flags); </pre></h3> <hr size=1 noshade> <h3>Description: DbEnv::rep_stat</h3> <p>The DbEnv::rep_stat method returns the replication subsystem statistics.</p> <p>The DbEnv::rep_stat method creates a statistical structure of type DB_REP_STAT and copies a pointer to it into a user-specified memory location.</p> <p>Statistical structures are stored in allocated memory. If application-specific allocation routines have been declared (see <a href="../../db42-devel-4.2.52/api_cxx/env_set_alloc.html">DbEnv::set_alloc</a> for more information), they are used to allocate the memory; otherwise, the standard C library <b>malloc</b>(3) is used. The caller is responsible for deallocating the memory. To deallocate the memory, free the memory reference; references inside the returned memory need not be individually freed.</p> <p>The following DB_REP_STAT fields will be filled in:</p> <p><dl compact> <dt>u_int32_t st_status;<dd>The current replication mode. Set to <a href="../../db42-devel-4.2.52/api_cxx/rep_start.html#DB_REP_MASTER">DB_REP_MASTER</a> if the environment is a replication master, <a href="../../db42-devel-4.2.52/api_cxx/rep_start.html#DB_REP_CLIENT">DB_REP_CLIENT</a> if the environment is a replication client, <a href="../../db42-devel-4.2.52/api_cxx/rep_start.html#DB_REP_LOGSONLY">DB_REP_LOGSONLY</a> if the environment is a log-files-only replica, or 0 if replication is not configured. <dt>DB_LSN st_next_lsn;<dd>In replication environments configured as masters, the next LSN expected. In replication environments configured as clients, the next LSN to be used. <dt>DB_LSN st_waiting_lsn;<dd>The LSN of the first log record we have after missing log records being waited for, or 0 if no log records are currently missing. <dt>u_int32_t st_dupmasters;<dd>The number of duplicate master conditions detected. <dt>u_int32_t st_env_id;<dd>The current environment ID. <dt>u_int32_t st_env_priority;<dd>The current environment priority. <dt>u_int32_t st_gen;<dd>The current generation number. <dt>u_int32_t st_in_recovery;<dd>The site is currently in client recovery. When this field is set, LSN values are not authoritative. <dt>u_int32_t st_log_duplicated;<dd>The number of duplicate log records received. <dt>u_int32_t st_log_queued;<dd>The number of log records currently queued. <dt>u_int32_t st_log_queued_max;<dd>The maximum number of log records ever queued at once. <dt>u_int32_t st_log_queued_total;<dd>The total number of log records queued. <dt>u_int32_t st_log_records;<dd>The number of log records received and appended to the log. <dt>u_int32_t st_log_requested;<dd>The number of log records missed and requested. <dt>u_int32_t st_master;<dd>The current master environment ID. <dt>u_int32_t st_master_changes;<dd>The number of times the master has changed. <dt>u_int32_t st_msgs_badgen;<dd>The number of messages received with a bad generation number. <dt>u_int32_t st_msgs_processed;<dd>The number of messages received and processed. <dt>u_int32_t st_msgs_recover;<dd>The number of messages ignored due to pending recovery. <dt>u_int32_t st_msgs_send_failures;<dd>The number of failed message sends. <dt>u_int32_t st_msgs_sent;<dd>The number of messages sent. <dt>u_int32_t st_newsites;<dd>The number of new site messages received. <dt>int st_nsites;<dd>The number of sites believed to be in the replication group. <dt>u_int32_t st_outdated;<dd>The number of outdated conditions detected. <dt>u_int32_t st_txns_applied;<dd>The number of transactions applied. <dt>u_int32_t st_elections;<dd>The number of elections held. <dt>u_int32_t st_elections_won;<dd>The number of elections won. <dt>u_int32_t st_election_status;<dd>The current election phase (0 if no election is in progress). <dt>u_int32_t st_election_cur_winner;<dd>The election winner. <dt>u_int32_t st_election_gen;<dd>The election generation number. <dt>DB_LSN st_election_lsn;<dd>The maximum LSN of election winner. <dt>u_int32_t st_election_nsites;<dd>The number sites expected to participate in elections. <dt>u_int32_t st_nthrottles;<dd>Transmission limited. This indicates the number of times that data transmission was stopped to limit the amount of data sent in response to a single call to <a href="../../db42-devel-4.2.52/api_cxx/rep_message.html">DbEnv::rep_process_message</a>. <dt>u_int32_t st_election_priority;<dd>The election priority. <dt>u_int32_t st_election_tiebreaker;<dd>The election tiebreaker value. <dt>u_int32_t st_election_votes;<dd>The votes received this election round. </dl> <p>The DbEnv::rep_stat 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> <h3>Parameters</h3> <p><dl compact> <p><dt><b>flags</b><dd> The <b>flags</b> parameter must be set to 0 or the following value: <p><dl compact> <p><dt><a name="DB_STAT_CLEAR">DB_STAT_CLEAR</a><dd>Reset statistics after returning their values. </dl> <p><dt><b>statp</b><dd> The <b>statp</b> parameter references memory into which a pointer to the allocated statistics structure is copied. </dl> <h3>Errors</h3> <p>The DbEnv::rep_stat method may fail and throw <a href="../../db42-devel-4.2.52/api_cxx/except_class.html">DbException</a>, encapsulating one of the following non-zero errors, or return one of the following non-zero errors:</p> <p><dl compact> <p><dt>EINVAL<dd>An invalid flag value or parameter was specified. </dl> <hr size=1 noshade> <h3>Class</h3> <a href="../../db42-devel-4.2.52/api_cxx/env_class.html">DbEnv</a> <h3>See Also</h3> <a href="../../db42-devel-4.2.52/api_cxx/rep_list.html">Replication and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db42-devel-4.2.52/api_cxx/api_index.html"><img src="../../db42-4.2.52/images/api.gif" alt="API"></a><a href="../../db42-devel-4.2.52/ref/toc.html"><img src="../../db42-4.2.52/images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1><a href="../../db42-devel-4.2.52/sleepycat/legal.html">Copyright (c) 1996-2003</a> <a href="http://www.sleepycat.com">Sleepycat Software, Inc.</a> - All rights reserved.</font> </body> </html>
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