Should I use Log Shipping, Replication, SSIS or something else
I have a BizTalk server Environment running and now the time has come that we've all experienced. People are asking for reports of the data flows and statistics on processing quantities. The data...
View Articlemysql replication Innodb setting differ between master and slave
Hi I am trying to set up replication between 2 machines for the first time. I am running the utility, mysqlreplicate. It attempts to run but fails over with the error message. Innodb settings differ...
View Articlept-table-checksum not finding differences
I have a very simple setup: 1Â master with 2 slaves. I stopped replication on one of the slaves (with the slave mysqld still running) and changed a row on the master. I have also kept all slaves and the...
View ArticleRead-only replica of RDS Postrgres instance with modified schema
We have a Postgres instance hosted in Amazon RDS. The idea is to create some kind of a read-only replica for a separate application. This application requires some modifications of the DB schema -...
View ArticleReplication when changing the subscription field
I'm tring to understand a problem we have on replication but I cannot find a definitive explaination when it comes to the subscription. Lets say I have a table, 'T' [label, name] and we create a...
View ArticleSQL Server 2008 R2 sp_replmonitorrefreshjob Issues
My team just moved our production SQL Server VM from one machine to another. During the move we also applied server updates. After the move was completed, everything tested as a successful move. Today...
View ArticleSymmetricDS replication DDL statements
Now I try to replicate DDL statements(like create, alter, drop) between different databases with the help of Symmetric-DS. I've found this page...
View ArticleMerge Replication API with SQL Server 2012 / 2014
We are using SQL Server 2008 with merge replication. Our business application uses the RMO API, which we have installed with SQL Server Feature Pack 2008 SP3 and there the package sql_rmo.msi. Now we...
View ArticleSQL Server 2014 Replication - The process could not connect to Subscriber 'xxx'
I have just set up very basic transactional replication on SQL Server 2014. The Publisher and Distributor are one and the same. I have configured the Publisher to push to the Subscriber, so any and all...
View ArticleNew Master-Master replication has stopped working
We're building a new MySQL server pair for high availability, and of course it's not like managing a single server. We're working with Ubuntu 14.04 LTS and MySQL 5.5.43 I had master-master replication...
View ArticleReplication Malfunctioned - Distribution Missing
I have configured the Replication in SQL Server 2008 R2 among 3 instances. Let's say INSTANCE1 as Publisher, INSTANCE2 as Distributor and INSTANCE3 as Subscriber. All the three instances are in...
View ArticleDelete many rows from a large percona mysql db
I need a fresh opinion on the case. Any thoughts are appreciated. Input: we have a huge percona mysql (5.5) database that takes a couple of Tb (terabytes). Tables on innodb engine. More than a half...
View ArticleActivating change in a replicated system
Let's say I have a replicated storage system and clients make requests to multiple active servers. If a client wants to change some data then this request is received by only one server and the change...
View Articleloading a very large table without a numaric ID from MySQL to S3
I'm trying to pump (with Sqoop) a large table (500GB in size with around 200M rows) in MYSQL to S3. However this table doesn't have a Key column which is numeric. It has a combined primary key with 3...
View ArticleServiceFabric - Primary Replication Queue Usage throeshold
I'm facing this Warning message on a ServiceFabric cluster: "Primary Replication Queue Usage of 95% has reached/exceeded the threshold 80%. First Replication Operation = 1818843, Last Replication...
View ArticleMySQL replication: purge_logs giving error
On a MySQL replication instance I have this error message: [ERROR] MYSQL_BIN_LOG :: purge_logs Was called Expired with file / db-space-no-connected-cpa / DBMS / dxnc6sla / arch / not listed in the...
View Articleredis master slave replication - missing data on the slave
Problem I have a situation where data that I created on the master doesn't seem to have been replicated to my slaves properly. Master Redis DB Setup Info I have a master running on 10.1.1.1. The...
View ArticlePostgreSQL streaming replication lag for synchronous standbys
We use PostgreSQL 9.5 in a master + synchronous hot-standby setup, i.e., using synchronous_commit = on and using synchronous_standby_names='*'. Consequently, the standby has sync_state = sync in the...
View Articlemysql replication missed quite a lot SQL statement
I have set up a master/slave with mysql-5.1.73 The master's binlog format is "statement". The master and slave seemed running very well with slave status: Slave_IO_Running: Yes Slave_SQL_Running: Yes...
View ArticleUsing non-replicated read/write databases on a MySQL slave server
I have a MySQL slave server that has two databases being replicated from a master. What I'd like to do is add a third database that I will exclude from replication and use as a read/write database....
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