is there a way to control mysql replication errors?
I have a mysql master server and a mysql slave server replicating the master, when an error occurs the slave replication stop's by default it's set this way. With "slave_skip_errors" flag you can set...
View ArticleIs it possible to JOIN to a Primary database from a Replication instance?
I have a database on a Replication server that doesn't exist on the Primary server. There are stored procedures on the Replication server's DB that join to tables in other databases on the Replication...
View ArticleSQL Server Publish create bad Scripts
I am having some issues trying to replicate transactional data from SQL Server 2012 to Oracle 11g XE. I am using this opcion [enter link description here][1] [1]: Publishing data from SQL Server to...
View ArticleMySQL Memory Tables - Master dealing with restart
We're in the process of considering using MySQL Memory tables to help with some temporary tasks (think of a queue). It will be replicated to a slave that will likely be a MyIsam table. Upon restart of...
View ArticleRavenDb topology with load balancing and redundancy
We're trying to come up with the appropriate RavenDb topology that would allow us to balance load as well as be fault tolerant. It seems that better approach for load balancing would be to use native...
View ArticleMerge table from master slave replication
I have a dual master-slave replication (server1 is master AND slave of server2). After a problem with server1, the replication broke. After some skipped logs the replication came back to life. Then I...
View ArticleMerge Replication Unique Key Constraint
I have SQL Server Merge Replication setup on two servers and I am getting a key constraint error when the synchronization runs. The only way I can resolve this issue is to delete the record on one of...
View ArticleMixed version mongodb replica
I have a Mongodb 3.0 cluster running (with WiredTiger and SCRAM authentication). I have an application which only works with mongodb 2.6, so I set up a 2.6 replica node, and set it as a hidden node as...
View ArticleQA/DEV Environment Best Practices for Data Restores
I started a new job a few months ago that has 4 environments. In each of these 4 environments there's around 40+ databases. Problem is, the environments are out of date and the databases in some...
View ArticleAmazon RDS replication with external slave
I've recently configured a replication with an external MySQL master and RDS as slave but now I need to reverse that config and use RDS as master and the other instance as slave. Actually I use a vpn...
View ArticleMySQL - How to see the queries executing by slave io thread
We have a strange problem with MySQL replication. We have observed huge load and IO wait on server while replication is in progress. We can have information of the queries from bin-log by using...
View ArticleGlusterFS not starting and not creating volume
I am trying to setup a cluster in which I can have wordpress Installed with glusterFS so that The master node will be running the actual copy of wordpress and other two nodes will have its replica....
View ArticleHow to configure sharding and replicas on startup (in config files) - Solr...
Is it possible to start solr cloud (5.3.1) with everything else already setup (Collections are defined in the config files etc.) with multiple shards/replicas? Basically I want to avoid having to make...
View ArticleKubernetes Architecture: Master-node
I have 2 questions about the orchestrationtool Kubernetes. 1) What is the Kube controller doing? Sometimes I read that it's really creating pods (the API server tells it how). And Sometimes I read it's...
View ArticleSQL server replication over replication
I have the following scenario : -Server 1 have a data_server1 data base and a transactional publication (over internet) called TANS_PUB (9 tables article) -Server 2 is a subscriber for TANS_PUB and...
View ArticleMixing client/member authentication methods in a MongoDB Cluster
I'm trying to configure a cluster with Sharding and Replication. I'd like to configure certificate-based client authentication. Optimally, it would also use certificate-based member authentication....
View ArticleInfinispan 7 - Update of Existing Keys are not being Replicated to other Nodes
We are using Infinispan 7.2.1 as replicated persisted cache between 2 nodes. We are using also Tomcat and Spring. No hibernate involves. The first node is reading and writing to the cache. The second...
View ArticleMySQL relay log rotates too soon and too often
I have a simple master/slave setup where the slave is just a backup. Sometimes I notice that the relay log on the slave rotates too often and too soon, when it is still very small: 4:00 PM...
View ArticleReplication successful but slave skips certain queries
I am testing a MySQL master-slave replication. Here is the master my.cnf: log-bin=/var/log/mysql/mysql-bin.log server-id=1 innodb_flush_log_at_trx_commit=1 sync_binlog=1 Here is slave my.cnf:...
View ArticleRestoring MySQL Master-Master Replication
I am trying to restore Master-Master MySQL 5.6 servers. The replication failed between DB1=>DB2 and so DB2 went out of sync. GTIDs are enabled. I have done an export and import from DB1 to DB2 and...
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