MySQL Circular Replication
I have this scenario where I have 4 MySQL servers (A,B,C,D), as this: Server (A) is always online, and serves as the main website. Servers (B,C and D) are online on random periods of the day, and not...
View ArticleRemote MySQL host - is connecting to remote port 3306 vulnerable?
Hello experienced colleagues, I have a web application built on a MySQL database. I need to run another copy in a remote location, and refresh the data weekly. The size of the refresh is about 500k...
View ArticleMySQL Master-Master Replication not syncing
SETUP: I have a WAMP MySQL Master-Master replication setup on 2 machines with sync_binlog=1 for safety. Machine config: Windows Azure Standard 2: 2 core, 4GB RAM, Windows Server 2008, MySQL 5.6.12,...
View ArticleHow I can fix the following error in replication RDF in virtuoso OpenSource?
I'm trying to do replication RDF triples in Virtuoso, but I have an error when connecting with the "pulbicador" server via repl_server function () says: "Error 42S22: [OpenLink] [Virtuoso ODBC Driver]...
View ArticleOptimizing mongo sync time in a replica set
To reduce the impact on my primary node when adding a new secondary, I'd like it to perform the initial sync from an existing secondary. The rs.syncFrom command seems perfect for that:...
View Articleenable log_bin_use_v1_row_events in mysql 5.6
I have a MYSQL master with two slaves also running MYSQL 5.6. I want to create another slave and that needs to be MYSQL 5.5. I was wondering if replication will work smoothly. I have...
View ArticleReplicating a truncated table Oracle to SQL Server
I have been using SQL Server 2012 Replication to replicate Oracle tables to SQL Server versions. I have been using both Snapshot and transactional replication but I have now hit an issue and I am not...
View ArticleAny risks in updating the system time on a mysql 5.5 server?
We just discovered one of our mysql systems has not been running ntp, with the result that the time has drifted a bit. If I enable ntp, and synchronize the time while the system is running are there...
View Articlemysql master/master replication problem
I am having a problem with one of my MySQL servers running CentOS 7. I have it almost setup with a master master replication status. But I keep getting this: MariaDB [(none)]> show slave status\G...
View ArticleSlave SQL thread got hanged
We have a master - slave setup with ROW based replication. We are seeing huge delay's on the salve even though there is no activity running wither on master or slave. When we looked in, we observed the...
View ArticleMongoDB can't add new replica set member [rsSync] SEVERE: Got signal: 6
I have a replica set and I added a new member to the set. The initialSync begins for the new member and rs.status (on primary) shows STARTUP2 as status. However, after a long enough time, there's a...
View ArticleDistribute Solr Using Replication without Using SolrCloud
I want to use Solr replication without using SolrCloud. I have three Solr servers, one is master and others are slave. How to dispatch the search query on the Solr server which isn't busy? What tools...
View Articledatastax cassandra scheduled replication
In datastax i want to replicate two node( from Node A to Node B at same server) on scheduled time not automatically.Kindly help me how to do it. Data will be inserted in Node A and Node B is for...
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 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 we execute update or insert in master server,...
View ArticleReplication error: the principal "dbo" does not exist [duplicate]
This question already has an answer here: Why is CDC capture failing due to a missing dbo principal 1 answer I have replication set up between two servers. This morning I came in and it was failing. I...
View ArticleTable cannot be converted from type 'int' to type 'bigint(20) unsigned'?
I have a percona mysql cluster, with master and few slaves. Each of them is running "Ver 14.14 Distrib 5.5.40-36.1" of mysql. Replication is row based. I ran an alter query on one of the tables of the...
View ArticleUsing "Enforce for Replication" property of SQL Server Foreign Key...
We have a custom built minimalist replication agent application. SQL Server's own Replication Agent can make use of properties such as "Enforce for Replication" for foreign keys. The question is can we...
View ArticleMySQL Replication vs Multiple PHP queries [on hold]
Over the past few years I have developed an internal system we use at work to track and manage many aspects of our system. The problem we face now is that this system's database in the US, where it can...
View ArticleMySQL master slave replication not working
I had MySQL master slave running and working fine but suddenly it stopped. I don't know which commands have been executed but now replication is not working. I am very new to MySQL can anyone help me?...
View Article