Laggy slave OK to have only one system user in processlist?
In all the examples of a processlist on a mysql slave I've seen, there are two system users. I have a slave that is very far behind the master. When I do show a processlist, there is only one system...
View ArticleHow to make the primary in the replica set to become unavailable in order to...
I created a replica set with three members. now I read the following link: Replica Set Elections which explains only in an abstract way what is going on. So they say that when the primary becomes...
View ArticleMySQL - Enabling Scheduled Event on Master and Slave Simultaneously
This may seem a bit strange, but I am trying to get a Scheduled Event to execute on both Master and Slave. I have two databases set up in a Master (A) to Master (B) replication environment. Master A is...
View Articlereplication filtering replicate-rewrite and do-table Mysql 5.6 (innodb engine )
I have a master/slave replication setup based on statement based replication. On master database named DB1, I have 5 tables and I want to replicate only two table on slave's database named DB2. Also, I...
View ArticleSetup MySQL Master to Master replication/automatic failover when each Master...
Thanks in advance. I have always worked with SQL Server and never really had any exposure to MySQL. I now have to determine the preferred setup for MySQL when there are four servers involved. Ideally,...
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(mysql) Database replication between 2 DB while 3rd DB as backup
I am not an advanced DB admin or designer. I am sure there are articles on this kind of scenario, probably too many. So I got confused and not sure which solution is appropriate/best for me. I am...
View ArticleRAFT: term condition to commit an entry
I've been reading several documentation on Raft and I've getting contradictory information about the commit. I get that an entry can only be committed if it's known to be stored in the majority of...
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How to remove orphaned Log Reader Agents from Replication Monitor?
How do I remove the two Log Reader Agents with errors from the Replication Monitor? As you can see, the job does not exist (Error message produced by right click > Properties on errored Log Agent...
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 ArticleCan a slave with a dynamic ip update the master
How can I setup mySQL replication in such a way that a slave on localhost with dynamic IP can update the master as well as get updates from the master which has a static IP. The slave will not be...
View ArticleHow to measure or estimate the streaming replication lag in Postgres 9.2
I've been asked to reverse engineer an app that uses postgresql in the back end. I can see that there is some database replica tion going on... based on my reading, I *think it's called streaming...
View ArticleError while doing in replicaset in windows (mongodb)
I tried doing the replicatset in windows, but im getting the below error. I checked the mongo process and killed the existing process. Even though the error exists. help me on this pls Thx commands...
View ArticlePostgreSQL 8.4 replication of more than 100 tables
I am facing a problem with PostgreSQL version 8.4. I need to create an slave machine but when I look to all tutorials of slony or londsite its saying I will need to specify the tables that I want to...
View ArticleMySQL slave server getting stopped after each replication request from Master
Basic master-slave MySQL configuration has been done on Windows machine. Master and slave servers are running on localhost with different ports. Now when executing update or insert in master server,...
View ArticleTwo -way replication on the same server
I have an ubuntu server, and I have a mysql with two database. I want to sync these two database (Two way replication) either via php or command line. I have searched a lot, but I cant find something....
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Replicate table in MySQL
I don't have any idea about how to replicate table. But this is my problem, I have table_1 with 5 columns and have data on it, then I have table_2 with 10 columns and no data on it. All of column in...
View Articlebidirectional xdcr elasticsearch and couchbase
I am pretty new to elasticsearch and couchbase and I want to understand a few concepts in order to make decisions on how to use them in my applcation. My overall question: is it possible to configure...
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Dynamics NAV (a replicated Database) Does Not Open?
Experts I was able to replicate an NAV test Database to another server instances. I used Transaction Replication. This was successful, whenever a transaction was completed in the original database, the...
View ArticleHow to audit user that reinitialized replication in sql server
How can we track who reinitialized our replication. Is there a way to check this user or login? Thanks in advance
View Articlepostgres streaming replication - slave only index
We have successfully deployed Postgres 9.3 with streaming replication (WAL replication). We currently have 2 slaves, the second slave being a cascaded slave from the first slave. Both slaves are...
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