How to setup sync between MongoDB and C# .NET Application
What is the best practice to synchronize a MongoDB remote database with a C# .NET App that would allow queries to be responded to within the local file system and update itself when there is a change...
View ArticleIs master-master replication equal to two-way replication?
Can we say that master-master replication is equal too two-way replication and one-way replication too master-slave replication?
View ArticleHigh replication factor value in Aerospike Cluster [on hold]
What are the downsides and upsides of a high value for replication factor in a Aerospike cluster. I have a cluster with 6 nodes and replication factor of 6, which means that all nodes have all values....
View ArticleSlave stopped : Could not parse relay log event entry
My Slave machine stopped somehow, and when I ran START SLAVE to start replication, I got following error, SLAVE 1 !!! > show slave status \G *************************** 1. row...
View ArticleBi-directional replication for the same MySQL table
AppA stores/retrieves data from dbA.tableA AppB stores/retrieves data from dbB.tableA tableA definition is the same across these databases. To start with dbB.tableA was copied from dbA.tableA (assuming...
View ArticleMySQL Master/Slave replication on same VM instance?
I'm fairly new to databases so I hope this isn't a silly question! Is it possible to set up master/slave replication on the SAME server? I understand there are not any advantages to this in terms of...
View ArticleDebian Server failover setup
I need to set up two servers with failover capability (Active - Passive model) sharing a common DB (Postgres)running over NAS. Could you please suggest me some workaround for the same ?
View ArticleHow to switch Quiescing to Normal Mode in Oracle?
I have two instance database Oracle, they are ORCL11 and ORCL10,.... I've configured them, it looks like correct. Then, I connect to replication user admin ORCL10 conn repadmin/repadmin@orcl10 And run...
View ArticleRun MySQL replication by schedule or on demand
I have a master-slave replication currently configured. I know this setup runs real time. Is it possible to sync only the databases on schedule (daily or weekly) or by demand? Thanks!
View ArticleWhy does replication with SSL fail on my MySQL database in AWS RDS?
I'm trying to replicate from AWS RDS to my own server. It works without SSL. Whenever I include the SSL property to the slave, it breaks with this error: error connecting to master...
View ArticleWordPress with massive MySQL database slow. Would MySQL replication help?
Database Administration is usually not my strength, but one friend asked me if I can help him with his project. He is running a WordPress (MySQL) website with WooCommerce. The postmeta table stores...
View ArticleReplication between local mysql and openshift Mysql
I am trying to sync/replicate two mysql dbs. One is on windows 7 machine and other is on openshift. I want scene like wherever I do changes on either side it should reflect. I can manipulate edit file...
View ArticleWhich one to use? InnoDB Replication or MySQL Cluster?
I am building a url shortener and I use InnoDB as the storage engine for link data. I will start with a single VPS containing both application instance and MySQL database instance on the same Virtual...
View ArticleMySQL replication error 1146
Any idea why there is '1146 - table doesn't exists' on 'CREATE TABLE IF NOT EXISTS...' statement. It actually happened only on one of the slaves (there are two in total): Last_SQL_Error: Error 'Table...
View ArticleRelaying changes to a slave from another master with Tungsten on MySQL
I am trying to setup a multi-master type of replication with each master having an additional slave using Tungsten. As an example, lets say I have 4 hosts (A,B,C,D) and hosts A and C are the masters,...
View ArticleProblem when using gtid with MySQL replication
I am faced with this problem when using gtid in MySQL replication: When @@SESSION.GTID_NEXT is set to a GTID, you must explicitly set it to a different value after a COMMIT or ROLLBACK. Please check...
View ArticleDocument Store & Relational DB Hybrid. Exists? Possible?
Does anyone know of any product or open source project that attempts to strap together Mongo DB and MySQL for instance? I hear a lot about how relational DBs being ACID compliant makes it nearly...
View ArticleWhy mysql INSERT ... ON DUPLICATE KEY UPDATE can break RBR replication on a...
here is the problem: 2 MySQL 5.5 servers Row based replications + master master Writes are on both servers (both active) autoinc trick (1 server odd, the other one even) I have a table like...
View ArticleWill transactional replication break if there is a heavy update/delete query...
For these specifications: Publisher: (prod OLTP DB server) SQL Server 2005, database size : 220 GB also acts as the distributor Subscriber (Prod reporting DB server): SQL Server 2005, DB gets...
View ArticleSQL Server 2012 AG replication issues
We just went away from SQL Serer clusters in SQL Server 2008 to SQL Server 2012 with AG – have five servers with replicas in a secondary datacenter and syncing over a dedicated eline/LAN layer 2...
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