Copy table from remote sqlite database?
Is there any way to copy data from one remote sqlite database to another? I have file replication done across two servers; however, some changes are recorded in an sqlite database local to each server....
View ArticleSQL Server 2014 Replication - The process could not connect to Subscriber 'xxx'
I have just set up very basic transactional replication on SQL Server 2014. The Publisher and Distributor are one and the same. I have configured the Publisher to push to the Subscriber, so any and...
View ArticleMongoDB unrecoverable replication error
One of member of my MongoDB replica set decided it would not restart, with the following error (reformatted for readability): Starting rollback due to OplogStartMissing: our last op time fetched:...
View Articlemysql - Do DDL statements replicate under Row Based Replication if the...
In Statement Based Replication the Default Database is of paramount importance. e.g. replicate-do-db=dbTwo USE dbOne; UPDATE dbTwo.tableTwo . . . . will fail as dbOne has been set as the default...
View ArticleAdd article to transactional publication without generating new snapshot
Using SQL 2008 R2 transactional replication with pull subscribers, when we add an article, I'd like to avoid having to create an entire snapshot (the db is ~80 GB, so this takes hours). From this...
View ArticleUnable to connect to auth mongo (with replica set) from java application
I have a wrapper class in java which communicates with mongo using mongo driver. I have introduced authentication in mongo, so if I am using using authentication on single instance my application is...
View ArticleUnexpected growth Transaction log file 100 GB which is part of Transactional...
I configured transactional replication on SQL Server 2014/Windows Server 2012. The database size is only 30 MB, but log file size is 100 GB. Every day, the log file size is growing 5-7 GB. 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 ArticleMySQL slave stuck at 'System lock' most of the time, high CPU usage
Let me describe what we are facing now: We have a MySQL Master-Slave, Row Based Replication setup and at the moment, the slave is stuck with a perpetual System Lock. The Master is an active server...
View ArticleHow to Upgrade Master Slave MySQL on AWS RDS?
I already have Master Slave configuration on AWS RDS. We want to upgrade 5.5 to 5.6.23. ..What should be correct sequence to Upgrade ? Upgrade Master ( Using Modify Instance ) --> Upgrade Slave...
View ArticleUnable to configure MongoDB replication without initial sync
I have a biggest MongoDB database in prod server. I want to setup replica set, So generally if we enabled replica set option on both server config file, it'll automatically start sync the data from...
View ArticleCannot drop distribution database in SQL Server 2012
I am trying to drop distribution database but cannot as I am getting this error: The operating system returned error 21(The device is not ready.) to SQL Server during a read at offset 0x00000000056000...
View ArticleScalability for an API
We have developed an API for an app (iOS/Android). Web servers (IIS), behind a load balancer, scale automatically. 1 DB server (SQL Server). The DB server is an AWS t2.large instance which performs...
View ArticlePostgreSQL streaming replication lag for synchronous standbys
We use PostgreSQL 9.5 in a master + synchronous hot-standby setup, i.e., using synchronous_commit = on and using synchronous_standby_names='*'. Consequently, the standby has sync_state = sync in the...
View ArticlePostgresql one master multiple slaves failover
My problem is same as the one asked in below topic Streaming Replication Failover - how to point second slave at new master? Currently I am working on Postgresql 9.5, I have one master and two slave...
View ArticleIssue faced in Sybase Replication server
We have primary source database as Oracle 11gR2 and target as SAP HANA. We are trying to test SAP - Sybase Replication server for replication from Primary ORACLE to Target HANA. We are facing issue...
View ArticleHigh number of undistributed commands after a "An existing connection...
For the lasts days I'm getting a high undistributed commands value in the replication monitor. Restarting the Server Agent solve the problem (momentarily) but after few hours starts again. Even when...
View ArticleThe primary key issue with slave
The slave is not working due to primary key error as shown below: Last_SQL_Errno: 1062 Last_SQL_Error: Error 'Duplicate entry '550696860' for key 'PRIMARY'' on query. Default database: 'vserv'. Query:...
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...
View ArticleHow to know if MySQL replication is working?
I am replicating from a MySQL v 5.5.50 master, to a MySQL v 5.5.46 slave hosted in RDS. I've followed the AWS documentation on how to do this to the letter, got the dump file imported into the slave...
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