Replication and AlwaysOn combination
We have 4 geographic regions where data is getting replicated and expected to be real time Mountain View(main source of ~160 GB), Atlanta, Netherlands, Singapore We have 2 set of servers App server and...
View Articlesync 4 geography regions data in sql server
What is the best plan on maintaining almost real time sync data like replication from 4 different geography regions in sql server 2012/2014
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SECONDARY member of mongodb replica set is not match with PRIMARY
I'm using mongodb replica set with two data center. One day, because of unknown packet drop, replica set was broken. So I restored replica set by removing/adding secoday , but It still something wrong...
View ArticleCan Availability Groups replace transactional replication?
I've been looking at the new features of SQL Server 2012, and how it can help my current situation. Currently we're on SQL Server 2008 R2, and replicate two OLTP servers' databases to a single...
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 ArticleBidirectional Replication Push and Pull with SQL Server
Please bear with me, I'm a developer working with a client without access to a strong DBA. I have a question about bi-directional replication with the following setup and requirements: MSSQL Server...
View ArticleReplicator failure in service exiting with FailFast
We are experiencing a specific statefull service that is unable to fully "go green", the partitions keep reshuffling and we are not seeing any indications of the errors in our own logs. After lots of...
View ArticleSymmetricDS new Dialect
I need to create a new dialect for SymmetricDS to replicate data from MySQl/MSSql/Oracle to new database(there is no dialect for it now). This database has specific sql. I have read...
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Splitting Snapshot files with MaxBCPThreads for Transactional Replication
I've just set up a publication, and I'm attempting to get the snapshot to apply faster. So far the Distribution Agent is respecting the MaxBCPThreads settings, but the Snapshot agent is not. I'm...
View ArticleExtend timeout in mmm_mon.conf
In mmm manual there are the check sections: 7.3.5 check sections check_period Description: Perform check every 5 seconds Default value:5 Used by: monitor trap_period Description: Check is considered as...
View Articlepgpool2 not working on my Ubuntu i686 athlon i386 GNU/Linux
I am trying to implement replication and load balancing on my Ubuntu i686 athlon i386 GNU/Linux.for creating database clustures I have installed postgresql contrib 9.1.11 having initially database...
View ArticlePostgresql Streaming replication - monitoring
I have setup streaming replication for my postgres servers. I am using PostgreSQL 9.2.6. Replication seems to be working fine. I am monitoring this with two ways using nagios: Log_delay and Byte_lag I...
View ArticleTransactional Replication guidance
As a real newcomer to Transactional Replication I would appreciate some guidance. I have a production database on premise and the need to take two tables from here and copy them regularly to a SQL...
View ArticleReplication of a remote MySQL database to local MySQL database
I'm the developer of my employers corporate private website, a HTML5/PHP/CSS powered site for company reports etc. The site, hosted on a shared hosting package, connects to a remote read-only MySQL DB...
View Articlereplication filtering replicate-rewrite and do-table Mysql 5.6 (innodb engine )
I have a master/slave replication setup based on statement based replication. On master database named DB1, I have 5 tables and I want to replicate only two table on slave's database named DB2. Also, I...
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...
View ArticleHow To Prevent Replication Failure
If I become a MySQL DBA, will I had to deal all day with those kind of issues or do you have tips to prevent from breaking the whole replication? I received this message because I removed manually the...
View ArticleConfiguring slave from EC2 master to Amazon RDS slave
I am configuring replication from EC2 master to Amazon RDS instance. After starting the slave, I don't see any errors but I see slave_IO: _thread is connecting. Master version:5.6.23 Slave...
View ArticleSlave failing to replication in maria db 10
I am not able to enable row based replication. I am trying to set up a master slave replication between 2 nodes running Server version 10.0.23-MariaDB-log Protocol version 10 UNIX socket...
View ArticleIs it good practice to have multiple keyspaces in Cassandra?
I've Cassandra configured on Amazon EC2 having 3 nodes in single cluster. Now what I want to do is give some space on Cassandra to my clients by creating separate keyspace for each in a single cluster....
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