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72 lines
3.2 KiB
HTML
<!--$Id: env_set_lg_max.so,v 10.20 2000/05/20 16:29:12 bostic Exp $-->
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<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
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<!--All rights reserved.-->
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<html>
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<head>
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<title>Berkeley DB: DbEnv.set_lg_max</title>
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<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++">
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</head>
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<body bgcolor=white>
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<a name="2"><!--meow--></a>
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<table><tr valign=top>
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<td>
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<h1>DbEnv.set_lg_max</h1>
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</td>
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<td width="1%">
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<a href="../api_java/java_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
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</td></tr></table>
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<hr size=1 noshade>
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<tt>
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<h3><pre>
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import com.sleepycat.db.*;
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<p>
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public void set_lg_max(int lg_max)
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throws DbException;
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</pre></h3>
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<h1>Description</h1>
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<p>Set the maximum size of a single file in the log, in bytes. Because
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<a href="../api_java/lsn_class.html">DbLsn</a> file offsets are unsigned 4-byte values, the set value may
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not be larger than the maximum unsigned 4-byte value. By default, or if
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the value is set to 0, a size of 10MB is used.
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<p>See <a href="../ref/log/limits.html">Log File Limits</a>
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for more information.
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<p>The DbEnv.set_lg_max interface may only be used to configure Berkeley DB before
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the <a href="../api_java/env_open.html">DbEnv.open</a> interface is called.
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<p>The DbEnv.set_lg_max method throws an exception that encapsulates a non-zero error value on
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failure.
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<p>The database environment's log file size 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_max", one or more whitespace characters,
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and the size in bytes. 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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before that time.
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<h1>Errors</h1>
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<p><dl compact>
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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 specified log file size was too large.
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</dl>
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<h3>Class</h3>
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<a href="../api_java/dbenv_class.html">DbEnv</a>
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<h1>See Also</h1>
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<a href="../api_java/env_set_lg_bsize.html">DbEnv.set_lg_bsize</a>,
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<a href="../api_java/env_set_lg_max.html">DbEnv.set_lg_max</a>,
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<a href="../api_java/log_archive.html">DbEnv.log_archive</a>,
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<a href="../api_java/log_compare.html">DbEnv.log_compare</a>,
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<a href="../api_java/log_file.html">DbEnv.log_file</a>,
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<a href="../api_java/log_flush.html">DbEnv.log_flush</a>,
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<a href="../api_java/log_get.html">DbEnv.log_get</a>,
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<a href="../api_java/log_put.html">DbEnv.log_put</a>,
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<a href="../api_java/log_register.html">DbEnv.log_register</a>,
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<a href="../api_java/log_stat.html">DbEnv.log_stat</a>
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and
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<a href="../api_java/log_unregister.html">DbEnv.log_unregister</a>.
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</tt>
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<table><tr><td><br></td><td width="1%">
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<a href="../api_java/java_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
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</td></tr></table>
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<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
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</body>
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</html>
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