How (if at all) does Galera enforce authentication for SST via rsync when...
I have to be missing something here. It just hit me as added a new node to my cluster in order to prepare for the removal of a different node: "How does the cluster know that it is okay to send the...
View ArticleOrder of replicated commands from Publisher to Subscriber in Transactional...
In Transactional replication the order of the commands execution in Subscriber is not same as it is in Publisher. I have a table Which have foreign key reference to its own table column. Alter Table...
View ArticleI can't access the file due to some error in glusterfs setup
Error Log : Node 1 : E [MSGID: 115050] [server-rpc-fops.c:158:server_lookup_cbk] 0-datapoint-server: 1396: LOOKUP /555.txt (00000000-0000-0000-0000-000000000001/555.txt), client:...
View ArticleMySQL Binary Logging Preventing Write Transactions - Bitnami
I'm trying to configure MySQL on a Bitnami-prepared VM for replication, and I am having issues with its binary logging. When I add the line log-bin = mysql-bin or log_bin = mysql-bin in the my.cnf...
View ArticleHow do I get a Golang Database connection pool to manage connections to...
I'm setting up bi-direction replication between four PostgreSQL workers, and I'd like to have my Go database connection pool handle connections to all four. It ought to be able to create multiple...
View ArticleSnapshot not picking up new articles in SQL Server 2012 transaction...
I am trying to add new articles to an existing publication in SQL Server 2012. I am adding the article to the publication with the syntax --add the table into the correct publication sp_addarticle...
View ArticleToo many open connections with MongoDB 2.6 + PyMongo 2.7.2
I was running MongoDB 2.4 with a replica set which contains 1 primary, 1 secondary and an arbiter. We were using PyMongo 2.6 and MongoEngine 0.8.2. Recently, we performed an upgrade to MongoDB 2.6,...
View ArticleConvert existing subscriber Database to a publisher database. Current...
We have a transactional replication setup. The publisher is on a separate SQL Server and the distributor and the subscriber together on the other server. The replication was done using restore from...
View ArticleUsing postgres_fdw to connect from one read replica to another
I have two postgres database servers in AWS, A and B. These databases have different tables. Both databases also have their own read replica. My goal is a simple solution for doing cross database...
View ArticleTransactional Replication Server Acts as Publisher and Subscriber?
I am configuring Transactional replication. Here my scenerio is that I am configuring my Server1 Tto act as Publisher and Subscriber , Secondary Server also act as Publisher and Subsciber Now I am...
View ArticleMongoDB stale replication, odd timestamp after data flush
Right before my secondary goes stale, it first has this written in the log: 2017-04-25T06:48:02.991+0000 I STORAGE [DataFileSync] flushing mmaps took 13530ms for 3150 files Then it gives me a odd...
View ArticleHow to find mysql DB is slave?
How to find mysql DB is slave with out using "show slave status" by query?
View Articlemysql replication databases different size
Replication between MySQL_5.6 servers. Master and Slave. 30 minutes after replication begins there were 1062 errors. Now everything is OK. No errors in 'SHOW SLAVE STATUS;' If I create Tables in...
View ArticleAdding a replica in MongoDB throws an error
I'm trying to add a node to a replica set using rs.add("developer-ViratualBox:30103") and I'm getting the following error message: { "ok" : 0, "errmsg" : "Quorum check failed because not enough voting...
View ArticleMySQL Semi-synchronous replication with Multi-Master
Is it possible to use semi-synchronous replication with a Multi-Master setup? I've tried to follow this guide to setup a semi-synchronous replication for a master-slave setup:...
View ArticleHow to synchronize some data fields between two different databases
I have two different databases in two different servers (with different table names). I want to synchronize some fields from source database with the fields that have the same names on target database....
View ArticleMaster-Master-Slave replication (problem with slave with one of the master)
I currently have a Master_1 <----> Master_2 ----> Slave replication. I am having this scenario and not sure what can be wrong on the Slave. 1) When updates are done on Master_2 then Master_1...
View ArticleMysql replication
I have a web app with 2 web servers and 2 database servers. The dbs are setup for multi master replication. (this is the primary environment) I also have the exact same setup on a different location...
View ArticleHow to implement ORACLE to VERTICA replication?
I am in the process of creating an Oracle to Vertica process! We are looking to create a Vertica DB that will run heavy reports. For now is all cool Vertica is fast space use is great and all well and...
View ArticleOffline data with replication/synchronization for Xamarin app on IPhone?
What is the safest way to store offline data that can be synchronized with a remote Sql Server if we build an app using Xamarin on IPhone? We are currently investigating SiaqoDB and Sqlite. SiaqoDB...
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