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	<title>久酷 &#187; mysql-bin.0000x</title>
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		<title>恐怖的MySql-bin.0000X日志文件</title>
		<link>http://www.jiucool.com/terror-mysql-bin-0000x-log-file/</link>
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		<pubDate>Sun, 25 Oct 2009 06:45:13 +0000</pubDate>
		<dc:creator>久酷</dc:creator>
				<category><![CDATA[linux]]></category>
		<category><![CDATA[mysql-bin 日志]]></category>
		<category><![CDATA[mysql-bin.0000x]]></category>

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		<description><![CDATA[之前发现自己10G的服务器空间大小,用了几天就剩下5G了,自己上传的文件才仅仅几百M而已,到底是什么东西占用了这么大空间呢?今天有时间彻底来查了一下:



看下上面的目录web根目录是放在/home 里面的,所有文件加起来才不到300M,而服务器上已经占用了近5G空间,恐怖吧,最后经我一步一步查询得知,原来是这个文件夹占了非常多的空间资源:



原来如此,是mysql文件夹下的var目录占用空间最大,那里面是啥 内容呢?我们来看下:

<span class="readmore"><a href="http://www.jiucool.com/terror-mysql-bin-0000x-log-file/" title="恐怖的MySql-bin.0000X日志文件">Read More: 1378 Words Totally</a></span>]]></description>
			<content:encoded><![CDATA[<p>之前发现自己10G的服务器空间大小,用了几天就剩下5G了,自己上传的文件才仅仅几百M而已,到底是什么东西占用了这么大空间呢?今天有时间彻底来查了一下:</p>
<p><a title="mysql-log" rel="lightbox" href="http://pic.jiucool.com/2009/MySql_C81A/mysqllog.jpg"><img style="border-right-width: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; margin-left: auto; border-left-width: 0px; margin-right: auto" title="mysql-log" src="http://pic.jiucool.com/2009/MySql_C81A/mysqllog_thumb.jpg" border="0" alt="mysql-log" width="381" height="320" /></a></p>
<p>看下上面的目录web根目录是放在/home 里面的,所有文件加起来才不到300M,而服务器上已经占用了近5G空间,恐怖吧,最后经我一步一步查询得知,原来是这个文件夹占了非常多的空间资源:</p>
<p><a title="mysql-log" rel="lightbox" href="http://pic.jiucool.com/2009/MySql_C81A/mysqllog1.jpg"><img style="border-right-width: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; margin-left: auto; border-left-width: 0px; margin-right: auto" title="mysql-log1" src="http://pic.jiucool.com/2009/MySql_C81A/mysqllog1_thumb.jpg" border="0" alt="mysql-log1" width="422" height="171" /></a></p>
<p>原来如此,是mysql文件夹下的var目录占用空间最大,那里面是啥 内容呢?我们来看下:</p>
<p><a title="mysql-log" rel="lightbox" href="http://pic.jiucool.com/2009/MySql_C81A/mysqllog2.jpg"><img style="border-right-width: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; margin-left: auto; border-left-width: 0px; margin-right: auto" title="mysql-log2" src="http://pic.jiucool.com/2009/MySql_C81A/mysqllog2_thumb.jpg" border="0" alt="mysql-log2" width="527" height="245" /></a></p>
<p>发现了如此多的 mysql-bin.0000X文件,这是什么东西呢?原来这是mysql的操作日志文件.我才几十M的数据库,操作日志居然快3G大小了.</p>
<h2>如何删除mysql-bin.0000X 日志文件呢?</h2>
<p><span style="color: #ff0000;">红色表示输入的命令.</span></p>
<p>[root@jiucool var]# <span style="color: #ff0000;">/usr/local/mysql/bin/mysql -u root -p<br />
</span>Enter password:  (<span style="color: #ff0000;">输入密码</span>)<br />
Welcome to the MySQL monitor.  Commands end with ; or \g.<br />
Your MySQL connection id is 264001<br />
Server version: 5.1.35-log Source distribution</p>
<p>Type &#8216;help;&#8217; or &#8216;\h&#8217; for help. Type &#8216;\c&#8217; to clear the current input statement.</p>
<p>mysql&gt; <span style="color: #ff0000;">reset master; (清除日志文件)<br />
</span>Query OK, 0 rows affected (8.51 sec)</p>
<p>mysql&gt;</p>
<p>好了,我们再来查看下mysql文件夹占用多少空间?</p>
<p>[root@jiucool var]# <span style="color: #ff0000;">du -h &#8211;max-depth=1 /usr/local/mysql/</span><br />
37M     /usr/local/mysql/var<br />
70M     /usr/local/mysql/mysql-test<br />
15M     /usr/local/mysql/lib<br />
448K    /usr/local/mysql/include<br />
2.9M    /usr/local/mysql/share<br />
7.6M    /usr/local/mysql/libexec<br />
17M     /usr/local/mysql/bin<br />
11M     /usr/local/mysql/docs<br />
2.9M    /usr/local/mysql/sql-bench<br />
163M    /usr/local/mysql/</p>
<p>好了,看一下,整个mysql 目录才占用163M大小!OK,没问题,既然mysql-bin.0000X日志文件占用这么大空间,存在的意义又不是特别大,那么我们就不让它生成吧.</p>
<p>[root@jiucool var]# <span style="color: #ff0000;">find / -name my.cnf </span></p>
<p><span style="color: #000000;">找到了my.cnf 即mysql配置文件,我们将log-bin=mysql-bin 这条注释掉即可.</span></p>
<p># Replication Master Server (default)<br />
# binary logging is required for replication<br />
#log-bin=mysql-bin</p>
<p>重启下mysql吧.</p>
<p>OK,至此,操作完成. 以后再不会因为就几十M的数据库大小生成N个G的日志文件啦.</p>
<p>这些个日志文件太恐怖了,我搬到这新VPS来才二十天左右,还不到一个月日志文件居然就近3个G大小,如果一两个月我不清除日志文件这还得了!</p>
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