db2 q replication

Label:4.4 Stream-based and file-based recoveryLife is not always black or white; sometimes there are some shades of gray. For some scenarios, stream replication may be just right. In other cases, file-based replication and PITR are what you need. However, there are also many cases where you need both stream replication and file-based

Understanding how DB2 uses memory can prevent over-allocating memory and help tune memory usage for better performance.This article will teach you the basics of DB2 memory usage, as well as the concept of shared memory and private memory. These contents apply to both 32-bit and 64-bit systems. Although there are some limitations on 64-bit systems, they are unlikely to reach these limits for some time to com

I. The master-slave replication process of mysql requires at least two mysql service nodes. The master-slave replication framework of mysql is generally a master-slave multi-slave mode, which is summarized from multiple data centers to the data center mode, the replication process can only be from the master server to the slave server. I. The master-slave

Redis Replication (Replication) This document is translated from: Http://redis.io/topics/replication. Redis supports the simple and Easy-to-use master-slave Replication (Master-slave replication) feature, which makes it an exact replica of the primary server (master server)

Guidance:InDB2 databaseThere is a special table calledAggregation target table. This aggregation target table is similar to the view and is read-only and is used for statistics on the basic table. However, it is essentially different, that is, over time, the system will append rows to the target clustering table. That is to say, the data in the table actually exists in the Database, rather than a virtual table as you see it. It can be seen that the clustered target table can play a similar role

The replication latency caused by the mutual blocking of MySQL 5.7 concurrent replication and mysqldump. The MySQL BINLOG and show processlist commands were originally two transactions that could not be reached by the client. However, in the recent troubleshooting, it was found that there was a serious replication delay between the master database and slave datab

After several days, I have completed HADR. Next, let's share it with you. System Environment: OS: SUSE 11sp1-64bit DB: db29.7.0.5 DB2server1: 192.168.5.151 db2inst1 DB2server2: 192.168.5.152 db2inst2 Steps: Operations on DB2server1: Db2inst1 @ DB2server1: ~> Db2 create database oga; Db2inst1 @ DB2server1: ~> Db2 get dbm cfg | grep SVC Db2inst1 @ DB2server1: ~> Db2set db2comm = tcpip Db2inst1 @ DB2server1:

MySQL replication, mysql master-slave Replication Replication refers to the upload of DDL and DML operations in the primary database to the replication server (also called slave server) through binary logs, and then re-Execute (also called redo) these logs on the server ), in this way, the data in the database of the s

MySQL Semi-synchronous Replication (Semi-synchronous Replication) in enterprise applications, MySQL often uses a master-slave architecture or a master-master architecture to achieve load balancing of MySQL servers, improves the performance of the MySQL server. the key is that MySQL Data Synchronization and replication can be implemented to provide a convenient me

If you have previously thought that replication slave is a necessary permission for replication, then you are mistaken, and for security generally you need replication slave. If you set up replication slave,replication client replication