mirror of
https://github.com/MariaDB/server.git
synced 2025-11-09 11:41:36 +03:00
93 lines
4.5 KiB
HTML
93 lines
4.5 KiB
HTML
<!--$Id: log_archive.so,v 10.26 2000/05/25 13:47:07 dda Exp $-->
|
|
<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
|
|
<!--All rights reserved.-->
|
|
<html>
|
|
<head>
|
|
<title>Berkeley DB: DbEnv.log_archive</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><tr valign=top>
|
|
<td>
|
|
<h1>DbEnv.log_archive</h1>
|
|
</td>
|
|
<td width="1%">
|
|
<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>
|
|
</td></tr></table>
|
|
<hr size=1 noshade>
|
|
<tt>
|
|
<h3><pre>
|
|
import com.sleepycat.db.*;
|
|
<p>
|
|
public String[] log_archive(int flags)
|
|
throws DbException;
|
|
</pre></h3>
|
|
<h1>Description</h1>
|
|
<p>The DbEnv.log_archive method
|
|
returns an array of log or database file names.
|
|
<p>By default, DbEnv.log_archive returns the names of all of the log files
|
|
that are no longer in use (e.g., no longer involved in active transactions),
|
|
and that may safely be archived for catastrophic recovery and then removed
|
|
from the system. If there were no file names to return, the memory location
|
|
referenced by <b>listp</b> will be set to null.
|
|
<p>The <b>flags</b> value must be set to 0 or by bitwise inclusively <b>OR</b>'ing together one or more
|
|
of the following values.
|
|
<p><dl compact>
|
|
<p><dt><a name="Db.DB_ARCH_ABS">Db.DB_ARCH_ABS</a><dd>All pathnames are returned as absolute pathnames,
|
|
instead of relative to the database home directory.
|
|
<p><dt><a name="Db.DB_ARCH_DATA">Db.DB_ARCH_DATA</a><dd>Return the database files that need to be archived in order to recover
|
|
the database from catastrophic failure. If any of the database files
|
|
have not been accessed during the lifetime of the current log files,
|
|
DbEnv.log_archive will not include them in this list. It is also
|
|
possible that some of the files referenced in the log have since been
|
|
deleted from the system.
|
|
<p><dt><a name="Db.DB_ARCH_LOG">Db.DB_ARCH_LOG</a><dd>Return all the log file names regardless of whether or not they are in
|
|
use.
|
|
</dl>
|
|
<p>The Db.DB_ARCH_DATA and Db.DB_ARCH_LOG flags are mutually
|
|
exclusive.
|
|
<p>See the <a href="../utility/db_archive.html">db_archive</a> manual page for more information on database
|
|
archival procedures.
|
|
<p>The DbEnv.log_archive method throws an exception that encapsulates a non-zero error value on
|
|
failure.
|
|
<h1>Bugs</h1>
|
|
<p>In a threaded application (i.e., one where the environment was created
|
|
with the DB_THREAD flag specified), calling DbEnv.log_archive with the
|
|
DB_ARCH_DATA flag will fail, returning EINVAL. To work around this
|
|
problem, re-open the log explicitly without specifying DB_THREAD. This
|
|
restriction is expected to be removed in a future version of Berkeley DB.
|
|
<h1>Errors</h1>
|
|
<p>The DbEnv.log_archive 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>The log was corrupted.
|
|
</dl>
|
|
<p>The DbEnv.log_archive 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.log_archive method may fail and throw
|
|
a <a href="../api_java/runrec_class.html">DbRunRecoveryException</a>, in which case all subsequent Berkeley DB calls
|
|
will fail in the same way.
|
|
<h3>Class</h3>
|
|
<a href="../api_java/dbenv_class.html">DbEnv</a>
|
|
<h1>See Also</h1>
|
|
<a href="../api_java/env_set_lg_bsize.html">DbEnv.set_lg_bsize</a>,
|
|
<a href="../api_java/env_set_lg_max.html">DbEnv.set_lg_max</a>,
|
|
<a href="../api_java/log_archive.html">DbEnv.log_archive</a>,
|
|
<a href="../api_java/log_compare.html">DbEnv.log_compare</a>,
|
|
<a href="../api_java/log_file.html">DbEnv.log_file</a>,
|
|
<a href="../api_java/log_flush.html">DbEnv.log_flush</a>,
|
|
<a href="../api_java/log_get.html">DbEnv.log_get</a>,
|
|
<a href="../api_java/log_put.html">DbEnv.log_put</a>,
|
|
<a href="../api_java/log_register.html">DbEnv.log_register</a>,
|
|
<a href="../api_java/log_stat.html">DbEnv.log_stat</a>
|
|
and
|
|
<a href="../api_java/log_unregister.html">DbEnv.log_unregister</a>.
|
|
</tt>
|
|
<table><tr><td><br></td><td width="1%">
|
|
<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>
|
|
</td></tr></table>
|
|
<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
|
|
</body>
|
|
</html>
|