rpl_semi_sync_master_wait_point,AFTER_SYNC?
The master waits for slave acknowledgment of transaction receipt after the sync. Upon receiving acknowledgment, the master commits the transaction to the storage engine and returns a result to the...
View ArticlePostgresql Streaming Replication Error: WAL segment removed
I want to set up PostgreSQL streaming replication, but get the following error: FATAL: could not receive data from WAL stream: ERROR: requested WAL segment 00000001000000000000006A has already been...
View ArticleTracking Slave Replication Errors in Mysql
I am currently trying to set a script up to monitor whether or not my mySQL databases are having any slave replication errors. I have implemented the following code. MYSQL_HOST=10.11.12.13...
View ArticleOnly replicate DDL in MySQL
I wonder if there is any easy way to keep the scheme consistent in two different MySQL clusters. Apart from classic replication, I would like to have a special "replication" which would reproduce all...
View ArticleReplication Broken, List Out of Sync Tables
In a master-slave setup on MySQL 5.5 on RHEL 6.1, when db replication breaks (for whatever reason), what is a good way to: check (and alert) replication is broken? get a list of tables that are out of...
View Article"Oneway" Replication from Oracle DB to TimesTen
currently I'm really stuck into a problem and I not able to finde a nice way to realize that. I need a suggestion to replicate from oracle db (some tables) to a TimesTen. A connection is only possible...
View ArticleUsing non-replicated read/write databases on a MySQL slave server
I have a MySQL slave server that has two databases being replicated from a master. What I'd like to do is add a third database that I will exclude from replication and use as a read/write database....
View ArticleMysql replication is enabled but stuck at "waiting for binlog to be...
I have set up replication between an existing database (server-id=23), and a new one (server-id=51). I have followed the steps in this stackoverflow question, but replication is not happening. On the...
View ArticleIs there a way to replicate Postgres databases in Amazon RDS between regions?
We have a Postgres RDS instance in the AWS Oregon Region. For some supposed legal reasons, we have to host our client's European data in the Ireland AWS Region, but we need that data synchronized to...
View ArticleNon-Replicating commands from (master) Mysql 5.5.40 to (slave) MariaDB 10.0.19
CRUD replicates just fine. But we noticed that DB structure altering commands such as ALTER TABLE and/or adding/updating columns to a table and even creating new ones do not replicate to the slave at...
View ArticleMySQL RDS Error 1062
Normally we can skip 1062 duplicate error but in rds can we skip multiple 1062 errors in one go. For example we define slave skip error =1062 in my.cnf and restart slave. but in RDS MYSQL how can we...
View ArticleHyper V replication - vs - sql replication solutions
I need to establish an offsite copy of a number of production servers, including SQL server. Hyper V replication has been chosen as a simple solution (all servers are virtual). This is to supplement...
View ArticleReplicate folder between two Windows servers, without DFS
We've got two windows servers (2012 / 2008), and I need to replicate a folder left to right between them (left pushes folder content, and right only pulls or replicates). The problem is that i can't...
View ArticleClassic vs. GTID replication MySQL 5.6 - how to identity which one used from...
Is that true? In classic replication (SQL_SLAVE_SKIP_COUNTER=1) you never see UUIDs in logs and show slave status like 3e11fa47-71ca-11e1-9e33-c80aa9429562:1-5? When you see an UUID, there is GTID...
View ArticleProcess to reclaim free space from mongodb ,replication is there
We are facing space pressure on production server so we are planning to reclaim space from prod instance.replication is there ,can anyone help me to know complete process in sequence to reclaim free...
View ArticleHow to sync incomplete replication records in MySQL
if replication breaks and you end up with a couple of records not pushed out to the slave, is there a way to update the slave without stopping locks on the master and manually transferring a new master...
View ArticleOracle : Redo / Undo for nologging table + Append + archivelog
I'm trying to replicate a table from an external Oracle DB to my system using a DB Link. First i tried doing it using an mview but it caused alot of redo/undo(I did the same steps as below but it...
View ArticleWhat is a reasonable value for PostgreSQL replication lag?
I am monitoring our postgreSQL slave server's replication lag using the following python script, which queries the pg_current_xlog_locationfrom the master, and compares it to the...
View ArticleWhen does the replication scripts get executed on SQL Server?
Really silly question I believe, but I couldn't easily find an answer to this question in the web... I assume that the scripts get executed when some data is inserted/deleted/updated in any table, am I...
View ArticleTransactional Replication or ODS
I was initially thinking to create a Transactional Replication copy of a couple databases to use to populate a staging database which ultimately will populate a data mart for DW. Would this be the...
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