May 25, 2012

Comment: Emulating global transaction ID with pt-heartbeat

slaves to master and knowing that mysql does not have a way match the transactions as ‘global transactions id’.I agree that matching logs ishow about ‘row based replication‘ ? i think it can help.Or may be its a dumb idea but still throwing. if

Post: Managing Slave Lag with MySQL Replication

is enough for one statement to get stuck to have all replication stalled. Long Queries – MySQL Replication executes queries one after another on the slave, so ifto know how to measure replication lag – MySQL

Post: Find where your data is replicated, win a Percona Live ticket

MySQL replication hierarchy? We have, too. As consultants, a lot of times we need to get a quick overview of the whole replicationslave-find, ages ago before I even worked at Percona). It automatically detects and connects to every server in the replicationto knowif

Post: How Does Semisynchronous MySQL Replication Work?

MySQL‘s semi-synchronous replication. I find that there are often a number of misconceptions about how semi-synchronous replication really works. I think it isslave). If the master commits but a crash occurs while the master is waiting for acknowledgment from a slave, it is

Post: Percona Replication Manager, a solution for MySQL high availability with replication using Pacemaker

to know if MySQL is already running. It should match the my.cnf pid_file setting. socket: The MySQL unix socket file replication_user: The user toslave” for a saner behavior. One of the important setting is “log_slave_updates = OFF” (default value). In some cases, if slaves are logging replication

Post: Filtered MySQL Replication

to know about partial replication – you can do filtering on the Master or on the Slave. Filtering on the Slave isMySQL Replication there are things to be careful with, so if you’re considering to

Post: Infinite Replication Loop

MySQL Replication. To explain what they are, how to identify them… and how to fix them. An infinite replication loop is one or more transactions that are replicating

Post: Statement based replication with Stored Functions, Triggers and Events

If you want to maintain the consistency of your data is necessary to define the same Triggers in Master and Slave servers. Example: mysqlto take in account when we are working with statement based replication. Knowing in advances how MySQL works internally can help us to improve our replication

Post: Actively monitoring replication connectivity with MySQL's heartbeat

Slave_received_heartbeats | 1476 | +—————————+——-+ Conclusion If you need to know when exactly the connection between your Master/Slaves breaks then replication‘s heartbeat is

Post: MySQL Master-Master replication manager released

MySQL for scale out. Most of the companies would have some internal scripts to handle things as automatic fallback and slave… tool do and how it works ? Currently it is implemented based on …know if slave server reboots (say power goes down) you can’t be sure about data consistency because replication