https://blog.wu-boy.com/tags/xtradb/Recent content in XtraDB on 小惡魔 - AppleBOYHugoen-usappleboy.tw@gmail.com (Appleboy)appleboy.tw@gmail.com (Appleboy)Thu, 16 Jan 2014 08:25:42 +0000https://blog.wu-boy.com/2014/01/percona-xtradb-server-read-only-issue/Thu, 16 Jan 2014 08:25:42 +0000appleboy.tw@gmail.com (Appleboy)https://blog.wu-boy.com/2014/01/percona-xtradb-server-read-only-issue/<div style="margin:0 auto; text-align:center"> <a href="https://www.flickr.com/photos/appleboy/8171305355/" title="mysql_logo by appleboy46, on Flickr"><img src="https://i1.wp.com/farm9.staticflickr.com/8488/8171305355_7fb578fdc9.jpg?w=300&#038;ssl=1" alt="mysql_logo" data-recalc-dims="1" /></a> </div> <p>最近在整理 <a href="http://www.percona.com/software/percona-server">Percona XtraDB Server</a> 將 Read Write 全部拆開，寫入部份只開一台 Node，讀取機器 Replica 則是越多越好，當然如果預計 write 都不會有任何 conflict 的話，那就不用拆開，read write 都可以在同一台即可，拆開的目的要解決 <code>Innodb transaction locking</code> 問題。今天遇到的是將機器讀寫都放在同一台，然後同時多台 Master 架構，結果跑在 <a href="http://www.codeigniter.org.tw/">CodeIgniter</a> 上面出現底下錯誤訊息</p> <blockquote> <p>The MySQL server is running with the &ndash;read-only option so it cannot execute this statement</p> </blockquote>https://blog.wu-boy.com/2014/01/sysbench-test-percona-xtradb-server-performance/Wed, 15 Jan 2014 11:00:15 +0000appleboy.tw@gmail.com (Appleboy)https://blog.wu-boy.com/2014/01/sysbench-test-percona-xtradb-server-performance/<div style="margin:0 auto; text-align:center"> <a href="https://www.flickr.com/photos/appleboy/8171305355/" title="mysql_logo by appleboy46, on Flickr"><img src="https://i1.wp.com/farm9.staticflickr.com/8488/8171305355_7fb578fdc9.jpg?w=300&#038;ssl=1" alt="mysql_logo" data-recalc-dims="1" /></a> </div> <p>今天拿 <a href="https://launchpad.net/sysbench">MySQL benchmark tool - Sysbench</a> 來測試看看 <a href="http://www.percona.com/software/percona-server">Percona XtraDB Server</a> + <a href="http://haproxy.1wt.eu/">Haproxy</a> 效能如何，實驗主機是執行在 <a href="http://www.centos.org/">CentOS</a> 6.4 版本，記憶體 128 G，在 CentOS 本身用 Yum 安裝 Sysbench 時，內建的版本為 0.4.12，單機測試 MySQL 效能不會出現任何錯誤，但是只要是透過 Haproxy，並且有兩台以上的 Server，就會噴出底下錯誤訊息:</p> <blockquote> <p>ALERT: failed to execute mysql_stmt_execute(): Err1317 Query execution was interrupted</p> </blockquote>