SQL Server log shipping : any way to skip some transactions without breaking...
I was able to set up log shipping from Primary to Secondary database. I need then to cleanup some old data from Primary database but I need that data in Secondary for reporting. So my idea was to stop...
View ArticleSharding and replication in MongoDB
I have to use the sharding and replication in MongoDB. What is the minimum hardware requirement including RAM ? And is there any simulator to insert the data in MongoDB?
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Replication not working
I configured master slave replication and it worked fine however it stops working after 5 min or so! Although slave status show that replication is fine, however whatever I insert in master isn't...
View ArticleClient switchover in mongodb replica
i just created the Mongodb replica system. On client side, i am connection using nodejs with the help of mongodb npm package. I have 3 machines Machine1IP (Primary) //can read and write...
View ArticleCan a slave with a dynamic ip update the master
How can I setup mySQL replication in such a way that a slave on localhost with dynamic IP can update the master as well as get updates from the master which has a static IP. The slave will not be...
View ArticlePromote Postgres standby while materialized view updates in primary
I have one primary Postgres server (serverA) and one standby Postgres server (serverB), both running Postgres 9.4 with Streaming Replication enabled. Is it possible to update a materialized view on...
View ArticleRemoving documents from CouchDB replicas
We have a product that uses central CouchDB databases per client replicating to Apps running on user's iPads. Most of the database can replicate normally but we have two categories of document that we...
View ArticleSelecting specific columns from slave status
I need to monitor mysql slave status from ms sql server, so I executed the query below but there was an error message like '[MSDASQL].Slave_IO_State'. The (maximum) expected data length is 28, while...
View ArticleBacking up data between SQL Express 2005 and SQL Server 2008 Standard Edition
I am developing an application which needs to backup data between SQL Express 2005 and SQL Server 2008. My client runs with an installation of SQL express 2005 and needs to periodically back up data to...
View ArticleSQL Server: subscriber as publisher and hierarchical replication
In Oracle Streams one way replication from one DB to another is a basic block for many replication topologies (N-way, hierarchical, combined and so on), and changes could be captured and applied for...
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Replication Lag on Postgres AWS RDS Service
We have a single master/single streaming replica Postgres 9.3 db on AWS. The load is not terribly high - this is a development/staging environment. (The production shows similar metrics). Point is the...
View ArticleHow to check command history in oracle golden gate ./ggsci? [on hold]
How to check command history in oracle golden gate ./ggsci ?
View ArticleReplicaion : Delete from Master Database
Is it possible, to delete certain data from Master Database, And Retain that data in the slave ? For, ex. I want to delete data of before 5 years from master. And I'm sure that data is not being used...
View ArticleSolrCloud index replication
I have prepared Solr index. Now I'm trying to replicate this index to all nodes in SolrCloud cluster. In master slave I did it without problems, when I defined ReplicationHandler with Master and Slaves...
View ArticleLong Running Merge
When I'm doing synchronization between database in different system, I'm getting the "long running merge" warning in the replication monitor. As my database consists of hundreds of thousands of...
View ArticleMySQL / DRBD / Pacemaker on EC2
I am trying to setup DRBD/MySQL/Corosync/Pacemaker on AWS EC2 instances, though I am not sure if it will work since how to integrate VIP is a problem for me. Anyone have any thoughts on what to do ?
View ArticleMySQL slave server getting stopped after each replication request from Master
Basic master-slave MySQL configuration has been done on Windows machine. Master and slave servers are running on localhost with different ports. Now when executing update or insert in master server,...
View ArticleMySQL failover - Master to Master Replication
My company is trying to implement a MySQL failover mechanism, to achieve higher availability in our webservices tier - we commercialize a SaaS solution. To that end we have some low-end VMs scattered...
View Articlesolr cloud shows slave(searching)
I am not using the master slave settings in solrconfig(as far as I know) but still solr admin page shows this in browser. Version Gen Size Master (Searching) 1444735428179 4390 5.4 GB Master...
View ArticleUsable Master-Master replication postgres
We are trying to build a sy prevent database failover with zero downtime. Coming from the mysql school which has a built in support this. We were expecting something of same in postgres as well(to...
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