Options for copying data out of continuously updating tables
I work with a pretty large (O(10^1) TB) DB2 (LUW, v. 9.7) database. It's got data coming in on a continuous basis via Golden Gate replication from another DB2 database. It's used for business...
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"[conn557392] killcursors: found 0 of 1" in Mongodb replication...
I am running a production mongodb replication with version 2.6 now. Today I found out that the primary mongod instance keeps writing log: [conn557392] killcursors: found 0 of 1 And I checked the...
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MariaDB multi-master replication (star topology) - Bizarre out-of-sync behavior
This may look familiar, I've been learning about this stuff for a few days - but this is a new question. I have a setup like this: Every node is a master, and I have them all replicating to each other...
View ArticleHadoop: Is it possible to avoid replication for certain files?
In hdfs as i understand all files are replicated, but we do certain logging in case of our jobs, the files of which we donot want replication as it might unnecessarily maintain replicated copies, is it...
View ArticleSecondary and Arbiter stuck in Startup
I'm using MongoDB version 3.0.0. I'm trying to setup mongodb replication on our machine. Replication was initially setup but due to some changes on the VM the entire thing crashed. When I tried to set...
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sql server replication - how to find and drop subscriptions?
I had 2 subscriptions to a publication, but they were from the same subscriber server and writing to the same subscriber database, just one was bad and one was running fine. I could not find a way to...
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How to achieve Mysql replication in case of filtration required between...
I have country wise Mysql servers and one master centralized server. The master server has data of all country and main portal uses master Mysql server (the centraized one). All the CRUD operation will...
View ArticleRedis sentinel configuration - Master server starts as slave instead
I have the following redis sentinel setup: http://redis.io/topics/sentinel#example-2-basic-setup-with-three-boxes The problem is that every time I start the redis servers and the sentinels, neither one...
View Articlesql server replication - error when creating a subscription - The article...
when trying to add a subscription to an existing publication use [Product] exec sp_addsubscription @publication = N'Product', @subscriber = N'REPLON1', @destination_db = N'Product', @subscription_type...
View ArticleBi-directional replication for the same MySQL table
AppA stores/retrieves data from dbA.tableA AppB stores/retrieves data from dbB.tableA tableA definition is the same across these databases. To start with dbB.tableA was copied from dbA.tableA (assuming...
View ArticleRelaying changes to a slave from another master with Tungsten on MySQL
I am trying to setup a multi-master type of replication with each master having an additional slave using Tungsten. As an example, lets say I have 4 hosts (A,B,C,D) and hosts A and C are the masters,...
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Sql Server 2008r2 Replication Snapshot Agent Hang
I am setting up a new merge publication, but I can not get the snapshot agent to run successfully. In fact, I can not run any snapshot agents for any of the other publications on this server now. This...
View ArticleSql server 2008 - server name changed
I have changed the computer name of the server where sql server 2008 r2 is installed. Old name was WIN-OUJEKRMGXXX and new server name is KASURDYYY When i configure replication following error occurs:...
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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 ArticleWhat is happening when Seconds_Behind_Master oscillates between two very...
I have a Percona 5.6 slave, newly set up, that is replicating from a server that is itself a slave to a third. The middle server (dbS2, the master for dbS3) is currently ~260000 seconds behind the...
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SQL Server 2014 Replication Limitations
We are planning to use SQL Merge Replication for our Point of Sales System. Below chart simply shows our Point of Sales hierarchy. All levels have their own SQL Server instances. If we use Branch 1...
View ArticleEfficiently replicate matrices in R
I have a matrix and look for an efficient way to replicate it n times (where n is the number of observations in the dataset). For example, if I have a matrix A A <- matrix(1:15, nrow=3) then I want...
View Articlesp_startpublication_snapshot Parameter(s)
I am creating a stored procedure that: Restores a DB from a .bak giving the .mdf and .ldf a new name (so we have have several copies of the same DB up (If specified in the SP's parameter) Creates three...
View ArticleSnapshot replication - How to detect when a snapshot has arrived on the...
I have snapshot replication set up to on a server which publishes to a second server as part of a scheduled SQL Server Agent job. When the snapshot finishes, I would like to detect when each table has...
View ArticleWhat is the difference between Solr Replication and Solr Cloud?
I'm supporting on rails project, which contain rails app and additional instance with Solr. My environment: rails 3.2.1, ruby 2.1.2, sunspot 2.1.0, Solr 4.1.6. Problem: Clould provider is not stable. I...
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