Database design for a lot of rows with data archive
i'm new to database design on larger scale. I have some knowledge and experience with MySQL but now i have some performance issues. Currently i'm using MySQL with 3 databases: History Snapshot Static...
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SECONDARY member of mongodb replica set is not match with PRIMARY
I'm using a mongodb replica set with two nodes in different data centers. One day, because of unknown packet drop, replica set was broken. So I restored the replica set by removing/adding secondary...
View ArticleMariaDB "Checking master version" during replication
Parallel replication with about 8 parallel threads is up continuously between one master instance and one slave instance. Every day at around the same time SHOW SLAVE STATUS on the slave shows these...
View ArticleAmazon EBS Type for MySQL Replication Server [on hold]
I have the following topology City 1 City 2 Master <----> Distribution Master (EC2 Instance) <---> Slave Distribution Master is slave of Master and Master of SlaveServer. Master and Slave...
View ArticleHow to improve performance of MySQL group replication?
In MySQL 5.7, there is a new feature called Group replication used for fault tolerant system. Group Replication Doc I implemented the group replication with 1 master and 3 slaves and it working fine....
View Articlecouch db replication behind http proxy with basic auth
is there a recommended way to replicate couch databases if the client is behind a http proxy with basic authentication? We´re using couch 1.6.1 and replicating through replication documents. So I´m...
View ArticleAzure SQL Database Active Geo-Replication
Using the Azure database replication is it possible the application to read data from the database that is closest to its location. My main database is in the USA while the secondary database is in...
View ArticleERROR Slave I/O Error_code: 2003
I was trying to create a master to master replication on ubuntu server 14.04 for mysql database between a main server and a backup server, and after the replication is done with configuration, i tried...
View ArticleSQL Server 2005 Replication
I am in the process of creating Replication between 2 Remote Servers, server 1 is the Distributor and Publisher and server 2 is the Subscription. server 1 windows 2003 server 192.168.10.1 connected by...
View ArticleHow do I Cluster Hibernate ORM Identifiers when using GenerationType.Table
I'm using the Hibernate ORM with MySQL on the Amazon Cloud using a load balancer. I'm now switching to GenerationType.Table and I'm wondering how you go about clustering hibernate so that I don't run...
View ArticleHow to troubleshoot, find and fix query Percona 5.6 with error...
i'm running Magento CMS, and underneath there are 2 physical servers both with Percona Server version: 5.6.23-72.1-log Percona Server (GPL), Release 72.1, Revision 0503478 in Master/Slave with GTID...
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 ArticleWhy 'Views' need to be replicated?
Assuming View1 is based on Table A,B and C on Server1. Table A,B and C are replicated to Server2 using Transactional Replication. View1 is created on Server2. ASK: So will View1 on both the servers...
View ArticleERROR Slave I/O Error_code: 2003
I was trying to create a master to master replication on ubuntu server 14.04 for mysql database between a main server and a backup server, and after the replication is done with configuration, i tried...
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Merge replication on sql server 2012 get full log
I want to get the full log for example from 1-12-2016 to current date of replication process . I used the following code but never return anything: SELECT * FROM sys.servers AS [publishers] INNER JOIN...
View ArticleMysqlfailover command - No slave is listed in health status
I have successfully created replication using GTID_MODE. It works perfectly. Now I need to setup automatic failover feature in it. I have run the following command. mysqlfailover...
View ArticleElasticsearch replica update mechanism
I want to know how replicas get updated in Elasticsearch 5 when new data is added to an existing index. Does it follow active replication or passive by default?
View ArticleWhat does SPR means in terms of replication?
Heard an architect saying terms SPR and MMR. MMR meant master master replication. I am wondering what SPR would mean.
View ArticleAdd ignored table to replication
I had tables that were not replicated using replicate-ignore-table. The request is to start replicating them. stopped the slave and stopped mysql. commented out the relevant rows in /etc/my.cnf....
View ArticleHow to check the replication delay in PostgreSQL?
I would like to measure time between insert data into master-table and slave-table using streaming replication in PostgreSQL 9.3. For this I create table test_time with 2 fields id(serial), t(text)....
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