Postgresql - Minor version upgrade 9.3.5 to 9.3.6 on Ubuntu
I am two servers: A & B. My master database is running on A and the version is 9.3.5. It's replica is running on B and the version is 9.3.6. I am trying to use B as UPSTREAM slave, and trying to...
View Articleis it possible to have basic wan replication for hazelcast opensource edition?
I'm aware that on hazelcast editions comparison page: https://hazelcast.com/pricing/ it is clearly specified that WAN replication is only for enterprise edition. But, on the other hand, this hazelcast...
View ArticleMysql - How can I replication structure, not data
I have master with 2 slaves (4 but other 2 not relevant). One slave is full replication, ability to switch to be master if needed. Second slave was designed to replicate certain tables and leave out...
View ArticleHow to handle solr replication when master goes down
I have solr setup, which is configured for Master and slave. The indexing is happening in master and slave is replicating the index at every 2 Min interval from master. So there is a delay of 2 Minutes...
View ArticleMySQL slave not using relay logs
I have a slave using TokuDB tables, but replicating from a Master that us using InnoDB tables. The master is part of PXC, and the slave, with TokuDB tables, just uses regular percona server (not...
View Articlereplication sql server FOREIGN KEY constraint error 3726
I created a merge replication between two databases in the same server merge publication : pub_1 base1 : the source base base2 : the destination base (newly created with the replication) All works...
View ArticleMultiple Replication Type Publications on Single DB
I have 2x critical DB's which until recently; I was reporting on as well as using in production. DB1 is a Vendor DB and DB2 an in-house DB used in conjunction with DB1 for custom tables and views (as...
View ArticleHow to make data Sync from AWS RDS to another AWS RDS with different schema
I have Mysql RDS1 and another Mysql RDS2 where the schema is different. I need the any changes on RDS1 to be synced immediately to Mysql RDS2. where the data changes due to create, insert, update and...
View ArticlePostgreSQL 9.1 Streaming Replication - Replication does not recover until...
I am running a streaming replication environment with PostgreSQL 9.1 (1 master, 3 slaves). Everything worked fine for aprox. 2 months. Yesterday, the replication to one of the slaves failed with the...
View ArticleMySQL TokuDB engine using too much CPU
I have converted tables of a database from InnoDB to TokuDB and i noticed that with TokuDB, reads are using way too much CPU. Why is this? To be more specific, the server with TokuDB tables is a slave...
View ArticleTomcat warning cluster context manager doesn't exist
I have 2 servers running Tomcat 7.0.54 in a cluster, and sometimes I see these context manager warnings when shutting down or restarting a JVM on one of the servers: 2016-03-01 10:14:53,414 [Thread-8]...
View ArticleReplicated data from 2 databases into 1 on a server - Don't know how to revert
I am not SQL certified enginner however company doesn't care when it comes to protect the data. I have a site with two databases: Live Test In the testDB there were several entries created in several...
View ArticleAdding a db for replication into mysql
Currently I have these settings. I am adding a new db called mydb3. How to enable the replication for this new db? Currently I have copied the table schema into both master and slave. What other...
View ArticleReplicating our corp serv TFS source control in AWS
Hi my corp is trying to move everything into AWS however we have a corporate TFS that we check our code into which probably won't change anytime soon. We are on the latest TFS release. Is it possible...
View ArticleSQL Server Replication :: Dedicated Distributor Hardware Requirements
Does anyone know any rules of thumb (or better) with regards to hardware requirements for a dedicated distributor server? i.e. Based on estimate metrics (e.g. number of subscribers, publishers, tables,...
View ArticleMySQL Replication: Seconds Behind Master super high
I've set up a slave db server for my production database, but when I checked the show slave status, I noticed a super big number in seconds behind master. This is the output: Slave_IO_State: Waiting...
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Permanent count of waiting tasks (2) in Activity monitor
Now I'm observing in Activity Monitor permanent count of waiting tasks: and at "Resource waits" tab I see next: so, my question is: How to find and resolve this wait tasks? I suspect that it related...
View ArticleSync two SQL Server database
Currently we have one SQL Server 2008 R2 database server in location X. All application users are in location X. All instances of the application can add data to database table and which may be...
View ArticleWhich error codes are safe for `slave_skip_errors` with MySQL Innodb
Does anyone know which error codes are safe to ignore during replication, meaning the slave will remain consistent with the master? For example [mysqld]...
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what's difference between sql_log_bin and log_bin in MySQL？
can anybody tell me what is the difference between them ?
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