Replica is stuck waiting for
Running two PostgreSQL 9.2.3 instances. One is master and other is slave. All was working for awhile, I could make changes on master and see them on the slave but now my slave is not getting changes...
View ArticleHow to delete mariaDB's specified connection_name for multiple replication
I have several replication settings on mariaDB(latest:10.1.8). Please make sure that I'm using Multiple replication not a legacy Single replication. I've added some settings with CHANGE MASTER "blah"...
View ArticleMYSQL Replication relay log error
I'm very new to MYSQL Replication and whilst attempting to learn a thing or 2 I can across a problem which I was not able to resolve. Attempting to configure Master - Slave replication with the...
View ArticleSQL Server 2012 Transactional replication over not-always-connected VPN...
I've read quite a few other posts here, but I could not come to a conclusion for my question: If I have a Master server A that should replicate a database via transactional replication to a subscriber...
View ArticleFinding differences between a master and slave when pt-table-sync fails
I have a table that's showing some differences on a master and slave according to pt-table-checksum (PTC). I've found some verifying differences beyond that. Certain tables in the mix have composite...
View ArticleWrite-lock a whole table during transaction
I need to perform a delicate operation to my table in which I will solely insert, delete and select upon all of my rows and no God may interfere with the table during this operation: the table will be...
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Attunity high latency and SQL Server blocking query
We have recently implemented an Attunity replication between 2 servers (From Oracle -> to MSSQL). Sometimes, we are facing high latency / incoming changes between the 2 servers. and most of the time...
View ArticleLength of LOB data (2135980) to be replicated exceeds configured maximum 65536
I am getting the replication error 'Length of LOB data (2135980) to be replicated exceeds configured maximum 65536'. sp_configure was previously applied to set it to max value (-1) and a query on...
View Articleoptimization of an innodb enginge
I have an innoDB database and I want to optimize the db. The ratio of inserts/updates and selects is 10/90 so what can I do to optimize that? I read something about the parameters of the storage engine...
View Articlehow to fix replication shutdown MySQL?
today, 2016-10-20 , MySQL suddenly shutdown ,is very terror，I have 4 mysql instance , M-M and M-M , and the slave server die first ,the next day ,all die ,can somebody tell me why? 2016-10-19 20:38:55...
View ArticleCouchbase lite react native tracking network and replication
I'm a newbie in both react native and couchbase lite, and I try this sample application https://github.com/jmn8718/RNCouchbaseExample.git . This sample, connect mobile couchbase lite db to a remote...
View Articlereal time heterogeneous database replication strategy
part of our project is the real time replication of a MySQL database to a different Oracle database (different structures) in a remote site. Every time an insert or update is made in the source db, it...
View ArticleAfter Restore Log_reuse_wait_desc of Replication
I'm wondering if anybody has ran into this issue before and has any suggestions on what's causing it/how to fix it. We are restoring a database into lower Dev environments and after the restore the...
View ArticlePostgres Streaming Replication: How to re-sync data in master (with standby)...
I am absolutely new to postgres 9.1 replication mechanisms. I have managed to set up streaming replication between a master and standby postgres (Both have x number of records). At one point when the...
View ArticleCan 2 MongoDB instances running on the same server point to the same data...
I am in the process of upgrading my MongoDB replica set from 2.6 to 3.2. We are planning to create another replica set on the same set of machines as an option to fallback in case something goes wrong....
View ArticleHot standby recovery configuration changed - now WAL sync fails [on hold]
I am using 9.2 PostgreSQL, and I was just playing with configuration files. The following things I have done: stopped slave server renamed recovery.conf to recovery.conf.sample restarted slave server...
View ArticleHow can I find out that a publication has "replicated schema...
Where can I find out (preferably using T-SQL) within a published databases, if it would replicate the schema changes? here is how to create a publication This topic describes how to create a...
View ArticleMariaDB replication - enabling compression
We've got a MariaDB database that's already being replicated and we wanted to turn on compression. I found the slave_compressed_protocol variable and see that it has to be turned on both on the master...
View ArticleMPI: Broadcasting by k-ary Replication
I have to implement a broadcasting algorithm that uses k-ary replication. void mpi_mbroadcast(int fromp, int multi, int degree, char * from, char * to, int nbytes); 1) fromp is the source processor...
View ArticleData synchronization between Web application and Local server
our company using an CRM web application and also running our local server(xampp). There is any Tool or plugin available for synchronization or replication between these two application without lose of...
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