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| author | tim@threads.polyesthetic.msg <> | 2001-03-04 19:42:05 -0500 |
|---|---|---|
| committer | tim@threads.polyesthetic.msg <> | 2001-03-04 19:42:05 -0500 |
| commit | 89dad52004ecba5a380aeebb0e2a9beaae88eb86 (patch) | |
| tree | 9dd732e08dba156ee3d7635caedc0dc3107ecac6 /bdb/docs/utility/db_checkpoint.html | |
| parent | 639a1069d313843288ba6d9cb54b290073a748a7 (diff) | |
| download | mariadb-git-89dad52004ecba5a380aeebb0e2a9beaae88eb86.tar.gz | |
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| -rw-r--r-- | bdb/docs/utility/db_checkpoint.html | 82 |
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diff --git a/bdb/docs/utility/db_checkpoint.html b/bdb/docs/utility/db_checkpoint.html new file mode 100644 index 00000000000..dc49d03d8f5 --- /dev/null +++ b/bdb/docs/utility/db_checkpoint.html @@ -0,0 +1,82 @@ +<!--$Id: db_checkpoint.so,v 10.22 2000/04/03 20:10:39 bostic Exp $--> +<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.--> +<!--All rights reserved.--> +<html> +<head> +<title>Berkeley DB: db_checkpoint</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>db_checkpoint</h1> +</td> +<td width="1%"> +<a href="../api_c/c_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>db_checkpoint [<b>-1Vv</b>] + [<b>-h home</b>] [<b>-k kbytes</b>] [<b>-L file</b>] [<b>-p min</b>]</pre></h3> +<h1>Description</h1> + <a name="3"><!--meow--></a> +<p>The db_checkpoint utility is a daemon process that monitors the +database log and periodically calls <a href="../api_c/txn_checkpoint.html">txn_checkpoint</a> to checkpoint it. +<p>The options are as follows: +<p><dl compact> +<p><dt><b>-1</b><dd>Checkpoint the log once, regardless of whether or not there has +been activity since the last checkpoint, and then exit. +<p><dt><b>-h</b><dd>Specify a home directory for the database environment; by +default, the current working directory is used. +<p><dt><b>-k</b><dd>Checkpoint the database at least as often as every <b>kbytes</b> of log +file are written. +<p><dt><b>-L</b><dd>Log the execution of the db_checkpoint utility to the specified file in the +following format, where <i>###</i> is the process ID, and the date +is the time the utility was started. +<p><blockquote><pre>db_checkpoint: ### Wed Jun 15 01:23:45 EDT 1995</pre></blockquote> +This file will be removed if the db_checkpoint utility exits gracefully. +<p><dt><b>-p</b><dd>Checkpoint the database at least every <b>min</b> minutes if +there has been any activity since the last checkpoint. +<p><dt><b>-V</b><dd>Write the version number to the standard output and exit. +<p><dt><b>-v</b><dd>Write the time of each checkpoint attempt to the standard +output. +</dl> +<p>At least one of the <b>-1</b>, <b>-k</b> and <b>-p</b> options must +be specified. +<p>The db_checkpoint utility uses a Berkeley DB environment (as described for the +<b>-h</b> option, the environment variable <b>DB_HOME</b>, or, +because the utility was run in a directory containing a Berkeley DB +environment). In order to avoid environment corruption when using a Berkeley DB +environment, db_checkpoint should always be given the chance to detach from +the environment and exit gracefully. To cause db_checkpoint to release all +environment resources and exit cleanly, send it an interrupt signal +(SIGINT). +<p>The db_checkpoint utility does not attempt to create the Berkeley DB +shared memory regions if they do not already exist. The application +which creates the region should be started first, and then, once the +region is created, the db_checkpoint utility should be started. +<p>The db_checkpoint utility exits 0 on success, and >0 if an error occurs. +<h1>Environment Variables</h1> +<p><dl compact> +<p><dt>DB_HOME<dd>If the <b>-h</b> option is not specified and the environment variable +DB_HOME is set, it is used as the path of the database home, as described +in <a href="../api_c/env_open.html">DBENV->open</a>. +</dl> +<h1>See Also</h1> +<a href="../utility/berkeley_db_svc.html">berkeley_db_svc</a>, +<a href="../utility/db_archive.html">db_archive</a>, +db_checkpoint, +<a href="../utility/db_deadlock.html">db_deadlock</a>, +<a href="../utility/db_dump.html">db_dump</a>, +<a href="../utility/db_load.html">db_load</a>, +<a href="../utility/db_recover.html">db_recover</a>, +<a href="../utility/db_stat.html">db_stat</a>, +<a href="../utility/db_upgrade.html">db_upgrade</a>, +and +<a href="../utility/db_verify.html">db_verify</a>. +</tt> +<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font> +</body> +</html> |