MySQL High Availability- P9
MySQL High Availability- P9
... Administrator. We will look at the MySQL Administrator in “Replication Monitoring with MySQL Administrator” on page 381. Monitoring Commands for the Slave The ... a typical SHOW SLAVE STATUS command executed on a server running MySQL version 5.5. Example 10-5. The SHOW SLAVE STATUS command mysql& gt; SHOW SLAVE STATUS \G *************************** 1. row ... Connect_Retry: 60 Master_Log_File: mysql- bin.000002 Read_Master_Log_Pos: 39016226 Relay_Log_File: relay-bin.000004 Relay_Log_Pos: 9353715 Relay_Master_Log_File: mysql- bin.000002 Slave_IO_Running:...
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MySQL High Availability- P4
... start_trans($link) { mysql_ query("START TRANSACTION", $link); } function commit_trans($link) { mysql_ select_db("common", $link); mysql_ query("SET SQL_LOG_BIN = 0", $link); mysql_ query("INSERT ... VALUES (%d,'%s')"; mysql_ query(sprintf($insert_message, $user_id, $message), $link); commit_trans($link); } $conn = mysql_ connect(":/var/run/mysqld/mysqld1.sock", "root"); ... %d, trans_id = %d"; mysql_ query(sprintf($update_query, $server_id, $trans_id), $link); mysql_ query("COMMIT", $link); } function rollback_trans($link) { mysql_ query("ROLLBACK",...
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MySQL High Availability- P5
... article_author WHERE article_id = %d"; mysql_ select_db("common"); $result = mysql_ query(sprintf($query, $articleId), $link); $row = mysql_ fetch_row($result); return getShardAndNodeFromUserId($row[0], ... FROM shard_to_node WHERE shard = %d"; mysql_ select_db("common", $common); $result = mysql_ query(sprintf($query, $shardNo), $common); $row = mysql_ fetch_row($result); $db_server = $row[0] ... sprintf($query, $userId); $result = mysql_ query(sprintf($query, $userId), $node); } while (!$result && mysql_ errno($node) == 1146); while ($obj = mysql_ fetch_object($result)) $articles[]...
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MySQL High Availability- P6
... slave.sql("STOP SLAVE IO_THREAD"); mysqlrep.wait_for_empty_relay_log(slave) slave.sql("STOP SLAVE SQL_THREAD"); position[current.name] = mysqlrep.fetch_slave_position(slave) slave.change_master(position[current.name]) ... monitoring while working on the lab machines at college. Joel finished his pastry and reached for his MySQL High Availability book. “There has got to be something in here,” he said. How do you know when ... systems are protected in the most secure manner. Monitoring a MySQL server is akin to monitoring an application. This is because MySQL, like most database systems, lets you measure a number of...
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MySQL High Availability- P7
... you can execute from a MySQL client (e.g., SHOW STATUS) and utilities you can run from a command line (e.g., mysqladmin). The MySQL client tool is sometimes called the MySQL monitor, but should ... by the MySQL software and are not part of the host operating system. As mentioned previously, you should always monitor your base operating system in tandem with monitoring MySQL because MySQL ... layer in MySQL an area not well understood or covered by other reference sources. How MySQL Communicates Performance There are two mechanisms you can use to govern and monitor behavior in the MySQL...
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MySQL High Availability- P8
... on a MySQL server. We’ve discussed the basic SQL commands available for monitoring the server, the mysqladmin command-line utility, the benchmark suite, and the MySQL Administrator and MySQL ... EXPLAIN, there is no single tool in a standard MySQL distribution that you can use to profile a query in MySQL. The “Optimization” chapter in the online MySQL Reference Manual has a host of tips and ... task One of the most powerful features of MySQL is its support for different storage engines. Storage engines govern how data is stored and retrieved. MySQL supports a number of them, each with...
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MySQL High Availability- P10
... innobackup --apply-log /etc /mysql/ my.cnf /home/cbell/backup mysqladmin -uroot shutdown perl innobackup --copy-file /etc /mysql/ my.cnf /home/cbell/backup /etc/init.d /mysql start Additional features ... watermark. The mysqlhotcopy.sh utility also includes customization features. You can find more information about it at http://dev .mysql. com/doc/refman/5.4/en/mysqlhotcopy.html. The mysqldump Utility ... file copy feature is the mysqldump client application. It has been part of the MySQL installation for some time and was originally donated to MySQL by Igor Romanenko. mysqldump creates a set of...
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MySQL High Availability- P11
... watermark. MySQL in the CloudIf you are wondering if there is something special about running MySQL in a cloudenvironment, you can relax. Running MySQL in a cloud is no different from running MySQL ... [root@ip-10-212-106-195 ~]# mysql -urootWelcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 2Server version: 5.0.45 Source distribution MySQL in the Cloud | 517Please ... balancingApplications with high loads or a high number of concurrent connections canbenefit from load balancing. As described in previous chapters, you can use MySQL replication across multiple MySQL slaves...
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MySQL High Availability- P12
... 15: MySQL ClusterPlease purchase PDF Split-Merge on www.verypdf.com to remove this watermark.Achieving High Performance MySQL Cluster is designed not only for high availability, but also for high ... using MySQL Cluster in the cloud.You can find a complete list of all of the considerations for high performance in the MySQL Cluster” section of the online MySQL Reference Manual. For general MySQL performance ... paper “OptimizingPerformance of the MySQL Cluster Database” at http://www .mysql. com/why -mysql/ white-papers /mysql_ wp_cluster_perfomance.php.560 | Chapter 15: MySQL ClusterPlease purchase PDF...
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MySQL High Availability- P13
... 457, 463Query Analyzer, 458 MySQL Enterprise Server, 456 MySQL Forge, 155 MySQL Migration Toolkit, 302 MySQL monitor, 294 MySQL Monitor and Advisor (MONyog) tool,317 MySQL Proxydata sharding ... promotion, 135–141 MySQL Query Browser, 312–313 MySQL serversbenchmark suite, 318–319communicating performance, 293GUI tools, 302 MySQL Administrator, 302–312 MySQL Query Browser, 312–313mysqladmin ... 294–300third-party tools, 316–318 MySQL System Tray Monitor, 313 mysql utility, 32 mysql. com outage, 110mysqladmin utilitycommands supported, 300 relative option, 301 sleep option, 301mysqlbinlog utility...
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