1<!--$Id: utilities.so,v 10.25 2001/03/05 19:15:07 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: Supporting utilities</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<a name="2"><!--meow--></a> 12<table width="100%"><tr valign=top> 13<td><b><dl><dt>Berkeley DB Reference Guide:<dd>Architecture</dl></b></td> 14<td align=right><a href="../arch/script.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../env/intro.html"><img src="../../images/next.gif" alt="Next"></a> 15</td></tr></table> 16<p align=center><b>Supporting utilities</b></p> 17<p>The following are the standalone utilities that provide supporting 18functionality for the Berkeley DB environment:</p> 19<br> 20<b><a href="../../utility/berkeley_db_svc.html">berkeley_db_svc</a></b><ul compact><li>The <a href="../../utility/berkeley_db_svc.html">berkeley_db_svc</a> utility is the Berkeley DB RPC server that 21provides standard server functionality for client applications.</ul> 22<b><a href="../../utility/db_archive.html">db_archive</a></b><ul compact><li>The <a href="../../utility/db_archive.html">db_archive</a> utility supports database backup and archival, 23and log file administration. It facilitates log reclamation and the 24creation of database snapshots. Generally, some form of log archival 25must be done if a database environment has been configured for logging 26or transactions.</ul> 27<b><a href="../../utility/db_checkpoint.html">db_checkpoint</a></b><ul compact><li>The <a href="../../utility/db_checkpoint.html">db_checkpoint</a> utility runs as a daemon process, monitoring 28the database log and periodically issuing checkpoints. It facilitates 29log reclamation and the creation of database snapshots. Generally, some 30form of database checkpointing must be done if a database environment has 31been configured for transactions.</ul> 32<b><a href="../../utility/db_deadlock.html">db_deadlock</a></b><ul compact><li>The <a href="../../utility/db_deadlock.html">db_deadlock</a> utility runs as a daemon process, periodically 33traversing the database lock structures and aborting transactions when it 34detects a deadlock. Generally, some form of deadlock detection must be 35done if a database environment has been configured for locking.</ul> 36<b><a href="../../utility/db_dump.html">db_dump</a></b><ul compact><li>The <a href="../../utility/db_dump.html">db_dump</a> utility writes a copy of the database to a flat-text 37file in a portable format.</ul> 38<b><a href="../../utility/db_load.html">db_load</a></b><ul compact><li>The <a href="../../utility/db_load.html">db_load</a> utility reads the flat-text file produced by 39<a href="../../utility/db_dump.html">db_dump</a> and loads it into a database file.</ul> 40<b><a href="../../utility/db_printlog.html">db_printlog</a></b><ul compact><li>The <a href="../../utility/db_printlog.html">db_printlog</a> utility displays the contents of Berkeley DB log files 41in a human-readable and parsable format.</ul> 42<b><a href="../../utility/db_recover.html">db_recover</a></b><ul compact><li>The <a href="../../utility/db_recover.html">db_recover</a> utility runs after an unexpected Berkeley DB or system 43failure to restore the database to a consistent state. Generally, some 44form of database recovery must be done if databases are being modified.</ul> 45<b><a href="../../utility/db_stat.html">db_stat</a> </b><ul compact><li>The <a href="../../utility/db_stat.html">db_stat</a> utility displays statistics for databases and database 46environments.</ul> 47<b><a href="../../utility/db_upgrade.html">db_upgrade</a></b><ul compact><li>The <a href="../../utility/db_upgrade.html">db_upgrade</a> utility provides a command-line interface for 48upgrading underlying database formats.</ul> 49<b><a href="../../utility/db_verify.html">db_verify</a></b><ul compact><li>The <a href="../../utility/db_verify.html">db_verify</a> utility provides a command-line interface for 50verifying the database format.</ul> 51<br> 52<p>All of the functionality implemented for these utilities is also available 53as part of the standard Berkeley DB API. This means that threaded applications 54can easily create a thread that calls the same Berkeley DB functions as do the 55utilities. This often simplifies an application environment by removing 56the necessity for multiple processes to negotiate database and database 57environment creation and shut down.</p> 58<table width="100%"><tr><td><br></td><td align=right><a href="../arch/script.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../env/intro.html"><img src="../../images/next.gif" alt="Next"></a> 59</td></tr></table> 60<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 61</body> 62</html> 63