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<title>Berkeley DB: DbEnv.set_lg_dir</title>
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<h1>DbEnv.set_lg_dir</h1>
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import com.sleepycat.db.*;
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public void set_lg_dir(String dir)
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<p>The path of a directory to be used as the location of logging files.
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Log files created by the Log Manager subsystem will be created in this
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<p>If no logging directory is specified, log files are created in the
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environment home directory. See <a href="../ref/env/naming.html">Berkeley DB File Naming</a> for more information.
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<p>For the greatest degree of recoverability from system or application
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failure, database files and log files should be located on separate
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<p>The DbEnv.set_lg_dir method configures operations performed using the specified
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<a href="../api_java/env_class.html">DbEnv</a> handle, not all operations performed on the underlying
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<p>The DbEnv.set_lg_dir interface may not be called after the <a href="../api_java/env_open.html">DbEnv.open</a>
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If the database environment already exists when
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<a href="../api_java/env_open.html">DbEnv.open</a> is called, the information specified to DbEnv.set_lg_dir
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must be consistent with the existing environment or corruption can
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<p>The DbEnv.set_lg_dir method throws an exception that encapsulates a non-zero error value on
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<p>The database environment's logging directory may also be set using the environment's
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<b>DB_CONFIG</b> file. The syntax of the entry in that file is a
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single line with the string "set_lg_dir", one or more whitespace characters,
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and the directory name. Because the <b>DB_CONFIG</b> file is read when the database
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environment is opened, it will silently overrule configuration done
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<p>The DbEnv.set_lg_dir method may fail and throw an exception encapsulating a non-zero error for the following conditions:
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<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
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<p>Called after <a href="../api_java/env_open.html">DbEnv.open</a> was called.
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<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.
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If a catastrophic error has occurred, the DbEnv.set_lg_dir method may fail and
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throw a <a href="../api_java/runrec_class.html">DbRunRecoveryException</a>,
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in which case all subsequent Berkeley DB calls will fail in the same way.
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<a href="../api_java/env_class.html">DbEnv</a>, <a href="../api_java/logc_class.html">DbLogc</a>, <a href="../api_java/lsn_class.html">DbLsn</a>
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<a href="../api_java/log_list.html">Logging Subsystem and Related Methods</a>
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