<!--$Id: env_set_lg_dir.so,v 10.6 2001/10/22 15:24:29 bostic Exp $--> <!--Copyright 1997-2001 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <html> <head> <title>Berkeley DB: DbEnv.set_lg_dir</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> <h1>DbEnv.set_lg_dir</h1> </td> <td align=right> <a href="../../db4-devel-4.0.14/api_java/c_index.html"><img src="../../db4-4.0.14/images/api.gif" alt="API"></a><a href="../reftoc.html"><img src="../../db4-4.0.14/images/ref.gif" alt="Ref"></a> </td></tr></table> <hr size=1 noshade> <tt> <h3><pre> import com.sleepycat.db.*; <p> public void set_lg_dir(String dir) throws DbException; </pre></h3> <h1>Description</h1> <p>The path of a directory to be used as the location of logging files. Log files created by the Log Manager subsystem will be created in this directory. <p>If no logging directory is specified, log files are created in the environment home directory. See <a href="../../db4-devel-4.0.14/ref/env/naming.html">Berkeley DB File Naming</a> for more information. <p>For the greatest degree of recoverability from system or application failure, database files and log files should be located on separate physical devices. <p>The DbEnv.set_lg_dir interface may be used only to configure Berkeley DB before the <a href="../../db4-devel-4.0.14/api_java/env_open.html">DbEnv.open</a> interface is called. <p>The DbEnv.set_lg_dir method throws an exception that encapsulates a non-zero error value on failure. <p>The database environment's logging directory may also be set using the environment's <b>DB_CONFIG</b> file. The syntax of the entry in that file is a single line with the string "set_lg_dir", one or more whitespace characters, and the directory name. Because the <b>DB_CONFIG</b> file is read when the database environment is opened, it will silently overrule configuration done before that time. <h1>Errors</h1> <p>The DbEnv.set_lg_dir method may fail and throw an exception encapsulating a non-zero error for the following conditions: <p><dl compact> <p><dt>EINVAL<dd>An invalid flag value or parameter was specified. <p>Called after <a href="../../db4-devel-4.0.14/api_java/env_open.html">DbEnv.open</a> was called. </dl> <p>The DbEnv.set_lg_dir method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the DbEnv.set_lg_dir method may fail and throw a <a href="../../db4-devel-4.0.14/api_java/runrec_class.html">DbRunRecoveryException</a>, in which case all subsequent Berkeley DB calls will fail in the same way. <h1>Class</h1> <a href="../../db4-devel-4.0.14/api_java/dbenv_class.html">DbEnv</a> <h1>See Also</h1> <a href="../../db4-devel-4.0.14/api_java/env_close.html">DbEnv.close</a>, <a href="../../db4-devel-4.0.14/api_java/env_version.html">DbEnv.get_version_string</a>, <a href="../../db4-devel-4.0.14/api_java/env_open.html">DbEnv.open</a>, <a href="../../db4-devel-4.0.14/api_java/env_remove.html">DbEnv.remove</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_cachesize.html">DbEnv.set_cachesize</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_data_dir.html">DbEnv.set_data_dir</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_errcall.html">DbEnv.set_errcall</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_error_stream.html">DbEnv.set_error_stream</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_errpfx.html">DbEnv.set_errpfx</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_feedback.html">DbEnv.set_feedback</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_flags.html">DbEnv.set_flags</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_rec_init.html">DbEnv.set_recovery_init</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_rpc_server.html">DbEnv.set_rpc_server</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_shm_key.html">DbEnv.set_shm_key</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_tas_spins.html">DbEnv.set_tas_spins</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_tmp_dir.html">DbEnv.set_tmp_dir</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_timeout.html">DbEnv.set_timeout</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_verbose.html">DbEnv.set_verbose</a>, and <a href="../../db4-devel-4.0.14/api_java/env_strerror.html">DbEnv.strerror</a>. </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db4-devel-4.0.14/api_java/c_index.html"><img src="../../db4-4.0.14/images/api.gif" alt="API"></a><a href="../reftoc.html"><img src="../../db4-4.0.14/images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font> </body> </html>