Contact US

Comments

Post a Comment

Please do not enter any spam link in comment Section suggestions are Always Appreciated. Thanks.. !

Popular posts from this blog

Restart Innodb MySQL Cluster after Complete outage(All node Down)

Image
Restart Innodb MySQL Cluster after Complete outage(All node Down) In DBA World, Their could be activity(like DC Migration) where all node of an MySQL Innodb cluster need to brought down. In MySQL Innodb cluster, We need to follow below steps in order to bring up cluster. 1) Start all node in the MySQL Innodb cluster. systemctl start myql 2) Try to connect cluster using mysqlsh and check status. 3) Strat cluster using complete outage command. Restart Cluster using below command: var cluster = dba.rebootClusterFromCompleteOutage(); root@mysqlhost01:~# mysqlsh --uri clusteradmin@mysqlhost01:3306 Please provide the password for 'clusteradmin@mysqlhost01:3306': ************************ Save password for 'clusteradmin@mysqlhost01:3306'? [Y]es/[N]o/Ne[v]er (default No): MySQL Shell 8.0.17 Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of...
Read more

Install & Configure MySQL Router - MySQL InnoDB Cluster

Image
Install & Configure MySQL Router -  MySQL InnoDB Cluster MySQL Router is one of the important component of MySQL InnoDB Cluster as it's used by applications to connect to the MySQL DBs running on cluster.  In this blog, We will show How we can install and configure MySQL Router either on application server or on dedicated server for MySQL Router. Below are the step to install and configure MySQL Router: 1) Install MySQL Router on the Server(In our case , We are restoring MySQL Router on the ubuntu server). Run command as root user : apt-get install MySQL-router 2) Bootstrap or Configure MySQL Router mysqlrouter --bootstrap clusteradmin@mysqlhost01:3306 --user=mysqlrouter In Case of any issue in configuring MySQL Router ,We can use -force option of the bootstrap. mysqlrouter --bootstrap clusteradmin@n4ldbdev5030:3306 --directory=/home/myrouter --user=mysqlrouter --force 3) Test Connectivity via MySQL Router. mysqlsh --uri clusteradmin@localhost:6446 you can learn more ...
Read more

Oracle Block Corruption - Detection and Resolution

Oracle Block Corruption - Detection and Resolution Any kind of corruption in database can  lead to stand still operation of the organization and can cause sever impact to organisation. In this blog , We are going to discuss about Block Corruption of the oracle database. Block Corruption :  Oracle Block Corruption occurs due inconsistent block Header ,Footer ,Checksum or Structure. Depending on the kind of insistency ,We can divide corruption into Physical and Logical corruption. Physical Corruption is due to Bad header, header or footer mismatch ,Invalid Block checksum & misplaced block. Usually this kind of the block corruption are due to external reason and difficult to resolve by oracle utilities alone.  Logical Corruption is due to corrupt or invalid Block structure when block checksum is valid. This kind of the Corruption can be resolved by the Oracle Utilities. Detection of Block Corruption Whenever a corrupt block is read Oracle reports an error in the alert l...
Read more