pglogical for OLAP queries
I am looking to setup a replica for OLAP queries. Currently in my prod I have a master (OLTP node) replicating to a slave via streaming replica. I don't want to use streaming replica for OLAP queries...
View ArticleReplication Monitor removes errors after NoSync
When SQL Replication fails enough, it will go into a NoSync state. Right now, it seems to be removing any previous error messages from the Replication monitor before it goes into a NoSync status. Is...
View ArticleMySQL 5.6 trigger replication to slave locking the table
Heyo good sirs. I have a master to slave replication using Row-based replication. The master gets a few simple and fast reads but the majority of read load is directed at the slave. They sometimes have...
View ArticleMongoDB can't add new replica set member [rsSync] SEVERE: Got signal: 6
I have a replica set and I added a new member to the set. The initialSync begins for the new member and rs.status (on primary) shows STARTUP2 as status. However, after a long enough time, there's a...
View ArticleVague replication error code 2005
2015-04-07 13:49:53 23758 [ERROR] Slave I/O: error connecting to master 'replication'@master-host:3306' - retry-time: 60 retries: 1, Error_code: 2005 This was after attempting to do a change master to...
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 ArticleCannot drop distribution database in SQL Server 2012
I am trying to drop distribution database but cannot as I am getting this error: The operating system returned error 21(The device is not ready.) to SQL Server during a read at offset 0x00000000056000...
View ArticleUnable to addShard in MongoDB
I am trying to deploy mongodb sharding. I have deployed a replica set in three machines. However, I still can't seem to make it work when I try to sh.addShard("test/mongodb1.example.net:27017") to all...
View ArticleDifference between Agent User ID and user/ password while configuring...
What is the difference between Agent User ID (Settings tab) and User/Password (Transport tab)? Please share the scenarios of both two when configuring the replicating agents in AEM.
View ArticleDynamoDB: can we use encryption and cross-region replication together?
DynamoDB: can we use encryption and cross-region replication together? We are evaluating DynamoDB for our new application. Our requirements are: Data encryption at rest Cross-region replication for...
View ArticleMigrating a Replicated Database
We are working on a migration plan from old hardware to new hardware, these are SQL 2012 servers. A couple of the databases heavily use transaction replication so I'm trying to avoid recreating and...
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Replication Monitor: Cannot Connect to Publisher
Everything It was working fine for a quite long time period, but suddenly this evening I found that I the replication does not work and I cannot browse the publications in the Replication Monitor...
View Articlemysql ssl replication - fails while attempting to connect to master
I'm trying to troubleshoot why my slave cannot connect to the master. This is what I see in the output from the command "show slave status \G" mysql> show slave status \G;...
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 ArticleSlave_IO_Running: Connecting in Master-Slave Replication
I was trying to implement Master-Slave Database Replication on two systems. I followed the steps from the following linkshttps://www.youtube.com/watch?v=DmQWcU2INqQ andMaster Slave Replication But in...
View ArticleData lost when enabling bi-directional master/slave on MariaDB
I have master/slave setup with two MariaDB 10.x instances. They were bidirectional but for the past two months it was only one direction. When re-enabling the bi-directional it looks as if the master...
View ArticleOracle to MongoDB replication, write to Oracle and read from MongoDB
My application uses Oracle 11g and has small number of tables but contains big number of records (~110 million). There is no Master(write)-Slave(read) configuration. There is a search function which...
View Articlehow to set up a master - master mysql replication one end has a static ip and...
how to set up a master - master mysql replication one end has a static ip and the other end has a dynamic ip? not using a dynamic DNS is better.
View ArticleMERGE running slowly
I created MERGE statements to transfer differences with a minimal set of required columns from production db into a staging database. The merged tables are planned to be used by different reporting and...
View ArticleCan replication be set up when already mirroring?
We currently use SQL Server 2012 Standard Edition and we mirror from one SQL Server instance to another for automatic failover purposes. I want to replicate the database which is mirrored, to another...
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