postgresql standby replication with Docker
I am trying to do standby replication using postgresql. In my opinion my configuration is fine because any of db - master and slave don't returns any errors or warnings but the problem is that...
View ArticleMongoDB Replication of two Primary
For our project we need to replicate two MongoDB primary databases from one site to another. Simple Overview Now we have the problem, that we wanna access data of Site B with a client over Site A. So...
View ArticlePostgreSQL Server: Many-to-One replication / Transactional Replication
I have multiple PostgreSQL databases at different physical locations. Each database has an identical table structure and schema, and entirely unique data. I need to store the data in all these...
View ArticleHow does increasing the Cassandra Replication Factor give more consistency
I was reading "Cassandra The Definitive Guide" and page 46 has this to say about Replication Factor: "The replication factor essentially allows you to decide how much you want to pay in performance to...
View ArticleReplication Factor to use for system_auth
When using internal security with Cassandra, what replication factor do you use for system_auth? The older docs seem to suggest it should be N, where N is the number of nodes, while the newer ones...
View ArticleMysql master slave configuration using chef
I've seen many tutorials online about how to configure mysql master slave replication. What I can't seem to find is how to do this with chef. I've deployed a mysql db with the opscode mysql cookbook...
View ArticleReplication Factor 3 but ownership total only 100% rather than 300%
I'm having a strange issue with some Cassandra clusters on a set of Solaris servers. Each of the clusters has 3 servers with its replication factor set to 3. [admin@unknown] describe resolve; WARNING:...
View ArticlePostgreSQL Multi Master Single Slave Replication
I have multiple transaction PostgresQL 9.4 databases and a single publication read-only database. Is there any replication mechanism (asynchronous) to push every updated transaction from every database...
View ArticleRestoring a MySQL database to a failed master
I have a master-master configuration in MySQL with two servers. One server should stay live on the network to serve requests (call it server A) and the other should be taken offline to push new code...
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Mysql multi-master active-active replication : replication doesn't happen for...
so i created a multi-master replication with bellow servers two for master and two for slave. hostname : master-1 ip : 192.168.120.107 hostname : master-2 ip : 192.168.120.111 hostname : slave-1 ip :...
View ArticleError Code: 1098. Can't generate a unique log-filename...
After starting MySQL 5.5 I receive the error message: Error Code: 1098. Can't generate a unique log-filename /data/mysql-binlog/relay-bin.(1-999) Can anyone point me out what the problem is? The error...
View Articleseeding a new replica set member with mongorestore is not recommended, why?
In docs, I found the following statement: IMPORTANT Always use filesystem snapshots to create a copy of a member of the existing replica set. Do not use mongodump and mongorestore to seed a new replica...
View Articlevagrant glassfish 4.1 cluster no session replication
I have a problem to implementing a highly available cluster glassfish 4.1 in Centos 6.x Session's replication doesn't work anyway and availability is skipped on deploy. When I deploy clusterjsp.war,...
View Article6 datacenters running the same mysql database, replication layout design...
So each of the datacenters is around the conus. The Master slave replication route seems like my best option here. I have never done this with more then 1 slave and 1 master. Advice? Links? The commits...
View ArticleMySQL replication monitor - Seconds_Behind_Master
I'm using Nagios and the check_mysql_health plugin to monitor my MySQL databases. I need to keep an eye on my Seconds_Behind_Master values in my replicated databases, but I am unable to use SHOW SLAVE...
View ArticleDebian Server failover setup
I need to set up two servers with failover capability (Active - Passive model) sharing a common DB (Postgres)running over NAS. Could you please suggest me some workaround for the same ?
View ArticlePostgreSQL Replications: Multiple Masters to a Single Slave
I have several PostgreSQL DBs in different geographical locations (local sites). Each local site DB have the same schema, but unique data. For example, Take a table with columns: Site_ID,...
View ArticlePostgreSQL - how to replicate only a set of table or databases
I need to replicate only part of my data - several tables or databases - from one PostgreSQL server to another. How do I do this?
View ArticleBest Replication method from server to cloud
can we replicate data from server to cloud in real time and which technique will be best like SSIS,transnational replication or any other, database has quick insert delete hits
View Articleuser not replicated to secondary nodes - Authentication failed
I created on primary node a user for mongodump { "_id" : "admin.backup", "user" : "backup", "db" : "admin", "roles" : [ { "role" : "userAdminAnyDatabase", "db" : "admin" }, { "role" : "clusterAdmin",...
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