... memory when you install Cluster Services Cluster Management Agent (CMA) This module interacts with the Clustering snap-ins to allow ConsoleOne to manage Novell Cluster Services Cluster Volume Broker ... part of the cluster The clustering software connects the servers into the cluster Using this software, you can have as many as 32 servers in a cluster (NetWare includes a two-node clustering license.) ... node fails, the cluster automatically migrates the pool to another node The clustering software reactivates the pool and remounts the cluster- enabled logical volumes within that pool Cluster Volumes...
... with Oracle RAC-related issues This page intentionally left blank Oracle Database 11g Release HighAvailability Maximize Your Availabilitywith Grid Infrastructure, Oracle Real Application Clusters, ... “Maximum” possible availability for your investment So perhaps the best way to think of HighAvailability is that it is synonymous with Maximum Availability, where Maximum Availability means ... Oracle-Regular / Oracle Database 11g Release HighAvailability / Jesse et al / 208-0 x Oracle Database 11g Release HighAvailability part iI Oracle Real Application Clusters (Oracle RAC) Oracle RAC Setup/Configuration ...
... 3307, "/var/run/mysqld/mysqld1.sock"); = array("localhost", 3308, "/var/run/mysqld/mysqld2.sock"); = array("localhost", 3309, "/var/run/mysqld/mysqld3.sock"); 176 | Chapter 5: MySQL Replication ... http://forge .mysql. com/wiki /MySQL_ Proxy The MySQL Proxy wiki page on MySQL Forge contains a lot of information about the proxy, including a lot of references and examples http://forge .mysql. com/wiki /MySQL_ Proxy_RW_Splitting ... sec) Conclusion Highavailability is a nontrivial concept to implement in practice In this chapter, we presented a look into highavailability and how you can achieve it withMySQL In the next...
... now-well-thumbed copy of MySQLHighAvailability and his notes and headed to the computer room “I hope I set the TiVo,” he muttered, knowing this was going to be a late night 194 | Chapter 5: MySQL Replication ... database The thread is responsible for coordinating with other MySQL threads to ensure changes not interfere with the other activities going on in the MySQL server From the perspective of the master, ... the relay chain is fetched, the code synchronizes the master with its slave all the way down the chain This is done with the sync _with_ master function, which was introduced in Example 5-15 Consistency...
... these processes are consuming with respect to the rest of the system For example, a high value on this parameter may indicate there is at least one process with too high of a priority Perhaps the ... of all of the mysqld programs, issue the command: ps -A | grep mysqld This will send the list of all processes to the grep command, which will in turn only show those rows with “mysqld” in them ... http://www.sun.com/software/products/sunmanagementcenter/index.xml MySQL Enterprise Monitor http://www .mysql. com/products/enterprise/monitor.html We will discuss the MySQL Enterprise Monitor and automated monitoring...
... • MySQL Administrator 1.2 • MySQL Query Browser 1.2 • MySQL Migration Toolkit 1.1 We will discuss the MySQL Administrator and MySQL Query Browser in more detail in the following sections The MySQL ... about the mysqladmin tool, see the section titled “mysqladmin—Client for Administering a MySQL Server” in the online MySQL Ref erence Manual Figure 8-1 shows the sample output of a system with no ... 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 not be confused with...
... the key cache and the MyISAM storage engine, see the online MySQL Reference Manual MySQL, Replication, and HighAvailability There is a higher probability of corruption of MyISAM data than InnoDB ... monitor 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 ... data directory to its own disk, and you can further improve performance of the disk with RAID or other highavailability storage options 344 | Chapter 9: Storage Engine Monitoring Please purchase...
... problems involving the MySQLCluster follows the same procedures presented in this chapter If you are having problems withMySQL Cluster, see Chapter 15 for troubleshooting cluster failures and ... Monitoring withMySQL Administrator | 381 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark Figure 10-1 The MySQL Administrator running on the master Figure 10-2 The MySQL ... master and the I/O and SQL threads are executing without error Replication Monitoring withMySQL Administrator You have seen how you can use the MySQL Administrator to monitor network traffic and...
... Backup and MySQL Replication There are two ways to use backup withMySQL replication In previous chapters, you learned about MySQL replication and its many uses for scale-out and highavailability ... = ["mysqlbinlog", " start-position=%s" % (image.backup_position.pos), " stop-datetime=%s" % (datetime)] mysqlbinlog_proc = Popen(mysqlbinlog_command + files, stdout=PIPE) mysql_ command = [ "mysql" , ... can protect your MySQL data by making regular backups In the next few chapters, we will examine more advanced MySQL topics, including MySQL Enterprise, cloud computing, and MySQLCluster Joel glanced...
... stopping a simple cluster; and discuss the key points of using MySQL Cluster, including high availability, distributed data, and data replication We begin by describing what MySQLCluster is and ... implementation of MySQLCluster stored all information in main memory with no persistent storage Later releases of MySQLCluster permit storage of the data on disk Perhaps the best quality of MySQLCluster ... the MySQLCluster involve installing the components of the cluster on different machines on a network Hence, MySQLCluster is also known as a network database (NDB) When we use the term MySQL Cluster, ”...
... database highavailability and MySQLhigh availability, see the following white papers: http://www .mysql. com/why -mysql/ white-papers /mysql_ db _high_ availability. php http://www .mysql. com/why -mysql/ white-papers /mysql_ ha_solutions.php ... can expect within a single MySQLclusterMySQLCluster has several specialized features for creating a highly available system The most significant ones are: 528 | Chapter 15: MySQLCluster Please ... Figure 15-1 MySQLCluster Features of MySQLCluster To satisfy the goals of having the highest achievable performance, high availability, and redundancy, data is replicated inside the cluster among...
... http://h71000.www7.hp.com/ Data Center HighAvailability Clusters Design Guide 1-2 OL-12518-01 Chapter Data Center HighAvailability Clusters HighAvailability Clusters Overview • HP TruCluster—Clusters for Tru64 ... glossary of terms Data Center HighAvailability Clusters Design Guide x OL-12518-01 C H A P T E R Data Center HighAvailability Clusters HighAvailability Clusters Overview Clusters define a collection ... the cluster go offline Data Center HighAvailability Clusters Design Guide OL-12518-01 1-17 Chapter Data Center HighAvailability Clusters HA Clusters Basics Figure 1-17 Cluster Configuration with...
... dựng Web server cluster mang tính sẵn sàng cao với chi phí thấp Tất nhiên có nhiều sản phẩm thương mại khác cung cấp với mục đích Nhưng với doanh nghiệp nhỏ hay tổ chức tương tự HighAvailability ... gửi gói tới) File /etc/ha.d/haresources Trong file bạn cần định nghĩa tên nút chính, địa IP ảo (cluster IP) tài nguyên dùng để bắt đầu Ở trường hợp Web server Apache Chỉ cần dòng liệu đây: node1.example.com ... mục file hệ thống cục tới mạng khu vực lưu trữ Tất nhiên liệu hai nút không giống chẳng có điểm cluster failover Nếu bạn thiết bị lưu trữ mạng mở rộng (như Fibre Channel chẳng hạn), bạn cài đặt...
... Starting a MySQLCluster Testing the Cluster Shutting Down the Cluster Achieving HighAvailability System Recovery Node Recovery Replication Achieving High Performance Considerations for High Performance ... 517 520 522 523 15 MySQLCluster 525 What Is MySQL Cluster? Terminology and Components How Does MySQLCluster Differ from MySQL? Typical Configuration ... [mysqld] user pid-file socket port basedir datadir tmpdir log-bin log-bin-index server-id = = = = = = = = = = mysql /var/run/mysqld/mysqld.pid /var/run/mysqld/mysqld.sock 3306 /usr /var/lib/mysql...
... FLUSH TABLES WITH READ LOCK and then to create an archive of the database files This is usually much faster, but FLUSH TABLES WITH READ LOCK is not safe for use with InnoDB! FLUSH TABLES WITH READ ... can be an advantage if the database is big, as restoring data with mysqldump can be slow Use mysqldump after performing FLUSH TABLES WITH READ LOCK (as we did earlier) Use a snapshot solution such ... server to imbue with the role To 28 | Chapter 2: MySQL Replication Fundamentals Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark aid derived classes with some common...
... Chapter 4: MySQLCluster Troubleshooting 115 Chapter 5: HighAvailabilitywithMySQL Replication 139 Chapter 6: HighAvailabilitywithMySQL and Shared Storage 175 Chapter 7: HighAvailabilitywith ... partitioning and arbitration, debugging MySQL Clusters, and network redundancy withMySQLCluster Chapter 5, HighAvailabilitywithMySQL Replication covers replication of MySQL databases It contains recipes ... slave without synchronizing data, and migrating data with a simple SQL dump Chapter 6, HighAvailabilitywithMySQL and Shared Storage highlights the techniques to achieve highavailability with...
... Chapter 4: MySQLCluster Troubleshooting 115 Chapter 5: HighAvailabilitywithMySQL Replication 139 Chapter 6: HighAvailabilitywithMySQL and Shared Storage 175 Chapter 7: HighAvailabilitywith ... partitioning and arbitration, debugging MySQL Clusters, and network redundancy withMySQLCluster Chapter 5, HighAvailabilitywithMySQL Replication covers replication of MySQL databases It contains recipes ... slave without synchronizing data, and migrating data with a simple SQL dump Chapter 6, HighAvailabilitywithMySQL and Shared Storage highlights the techniques to achieve highavailability with...