couchdb/pouchdb: how to show and replicate documents for certain users and...
I'm building a collaboration app with couchdb and pouchdb. I want to implement a calendar feature. Let's say there is an event like "secret meeting" that involves the users Jessica and James, so the...
View ArticleLive Database Sync. MySQL - SQL Server
I have a Rarer scenario, Is there any possibility to achieve the target? Here is the Situation: I have Developed a Responsive site using php with foundation framework and the back-end is MySQL for a...
View ArticleReplication with fail over cluster in SQL Server 2014
Presently I am Using Replication Feature in SQL Server 2012 .I want to migrate to SQL server 2014 .I want to use fail over cluster feature .Does it effect the replication feature which we are using for...
View ArticleHazelcast update replicated map
Hei, I'm using Hazelcast ReplicatedMap to store some objects. In order to save the objects in the map I'm using the put method from the ReplicatedMap interface( aka V put(K var1, V var2, long var3,...
View ArticleSVN to SVN synchronization - Master/Slave
We are planning to do the SVN to SVN synchronization (multi-site repository replication) we are using Visual SVN server Enterprise edition. And I'm trying for Master and Slave concept. If Master...
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 ArticleWhich error codes are safe for `slave_skip_errors` with MySQL Innodb
Does anyone know which error codes are safe to ignore during replication, meaning the slave will remain consistent with the master? For example [mysqld]...
View ArticleOptimise read-only database. MariaDB Galera Cluster Cassandra engine. Beginner
I have a table which I want to use to read data. Usual query: SELECT id FROM table1 WHERE (col1 BETWEEN A AND B) AND (col2 BETWEEN C AND D) SELECT * FROM table2 WHERE id IN() Average number of...
View ArticlePartial (filtered) replication in PostgreSQL
My setup looks something like this: I have a primary server (Postgres 9.6) that continually scrapes a bunch of data from the web. I'd like to be able to stream a subset of tables or databases from...
View ArticleWhy not replicate System User across enviroments in AEM 6.1?
I can see a lot of recommendation to not create System Users via API (maybe it is not possible?) or to not replicate System User across environments (via package bundle for example). I'm curious,...
View ArticleSQL Server 2014 - Active/Active Transactional Replication Load Balancing
We have two servers connected via a dedicated VPN. One of the servers hosts our SQL Server data, but we plan to replicate the data to both servers and have an Active/Active scenario. That is to say,...
View ArticleMySQL - Enabling Scheduled Event on Master and Slave Simultaneously
This may seem a bit strange, but I am trying to get a Scheduled Event to execute on both Master and Slave. I have two databases set up in a Master (A) to Master (B) replication environment. Master A...
View ArticleMongoDB unrecoverable replication error
One of member of my MongoDB replica set decided it would not restart, with the following error (reformatted for readability): Starting rollback due to OplogStartMissing: our last op time fetched:...
View ArticleHow to avoid intermittent "duplicate entry" error on slave when...
Rarely, but intermittently, MariaDB 5.5 fails to replicate the timezone tables onto a completely new replica (instance creation is all automated, so there's no room for missing/changed steps). We...
View ArticleTable schema affect on transactional replication performance
We've implemented transactional replication (push model) over a WAN and are sometimes seeing slow-downs during bulk updates of a specific table (ie. we are seeing a high number of 'commands not...
View ArticleHow can I tell if Trigger code is being executed at a Replication Subscriber?
I have a SQL Server 2012 database that is being Published for replication and a pull Subscription defined on another server. I have a Trigger that I need executed at the Subscriber end, however the...
View ArticleMysql error 1236 from master when reading data from binary log
I have 2 MySql with a master/slave configuration and the replication is failing. The MySql Master crashed and a new register in the mysql-bin.index was created. I deleted this new register because...
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...
View ArticleHow do I synchronize rows in tables in remote databases?
I'm actually developing a synchronization tool in vb.net, I have two database that have on each table records field GUID, this field help to have the same PK on both database. On each record there is...
View ArticleHigh Availability for MariaDB and Postgres : replication or active-passive (SAN)
During the last weeks I did a lot of research on High Availability for Postgres and MariaDB. Both by my own research and also recommended by vendor's, replications seems to have more advantages. Some...
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