Secondary and Arbiter stuck in Startup
I'm using MongoDB version 3.0.0. I'm trying to setup mongodb replication on our machine. Replication was initially setup but due to some changes on the VM the entire thing crashed. When I tried to set...
View ArticleMongoDB Replica Set Failure
Some background I had an issue with my replica set the last 24 hours, where the members could not connect to each other, and I got errors such as; could not connect to .... the machine actively refused...
View ArticleMySQL 5.7.9 multi-source replication
I am trying to set up multi-source MySQL replication. I need to replicate only one database to one slave instance and another database to another slave instance. If I use replicate-do-db in master it...
View ArticleMysql sync_binlog = 50 and innodb_flush_log_at_trx_commit = 2 with replication
I'm looking into sync_binlog = 50 and innodb_flush_log_at_trx_commit = 2 to improve write performance. There is this question, but it doesn't address the specific problems with replication. I have an...
View ArticleConnecting to MongoDB Replica Set behind a Load Balancer
I am a little confused on how MongoDB handles replica sets. I have the following setup: 2 Replica set members to store data 1 Arbiter Everything is in a Virtual Network There are two scenarios:...
View ArticleSQL Server Transaction Replication For Indexed Views
I am doing transaction replication for indexed views. I have other replicating schemabound views that reference the indexed views using the NOEXPAND hint. Even though I call sp_addarticle for the...
View Article3 Node Replica Set all became SECONDARY
my 3 set replica set all became secondary and I'm not sure why. db1 2014-12-12T02:43:55.067+0000 [conn1413096] end connection 10.0.64.12:58483 (512 connections now open) 2014-12-12T02:43:55.067+0000...
View ArticleWhat is the difference between failover vs high availability?
According to my reading on jboss documentation it says, We define high availability as the ability for the system to continue functioning after failure of one or more of the servers. A part of high...
View ArticleHow to Set Up Sync of two mysql databases without master slave
The purpose is to create the live database replication for staging server but with masking of personal identifiable information like email, mobile, passwords etc. This has to be done once daily, not...
View ArticleTriggers in a Postgresql slave, not affecting primary database
What I need to do is to have a replication of my database in which to create some triggers to do stuff in certain events. At the moment: I have a primary database A in postgresql. I have just set up a...
View ArticleCannot do Solr searching because of disabling replication
I try to do Solr searching but I cannot. Solr give me the error message: Update failed, could not disable replication for 'core name_en' - Request to http://:3000/core/core name_en/replication%2Fupdate...
View ArticleMap entry event listeners are not invoked on clients of WAN replication...
This https://github.com/hazelcast/hazelcast/pull/5058 fixes similar issue but on target cluster itself. Clients of such cluster receive REMOVED events only. It's fairly easy to reproduce by adding...
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What about redundacy if distributor goes down?
Im setting up load balacing, transactional replication and mirroring. However, what I actually thought might work from the beginning, making the system redudant doesn't actually work because a...
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What about redundancy if distributor goes down?
I'm setting up load balancing, transactional replication and mirroring. However, what I actually thought might work from the beginning, making the system redudant doesn't actually work because a...
View ArticleKafka read with synchronous replication
I'm new in Kafka and while reading about synchronous replication in Kafka here I was surprised by the following paragraph: "For simplicity, reads are always served from the leader. Only messages up to...
View ArticleSemi synchronous Replication passes no data
My master is running MySql 5.6.19, one slave is 5.6.27 and the other is 5.6.21. Everything seems to indicate that replication is running properly, but data on the slaves is not updated. My status is:...
View ArticleCan a replicated stored procedure at the Subscriber perform operations on a...
Can a replicated stored procedure at the Subscriber perform operations (e.g. a select statement) on a non-replicated table at the Publisher? (SQL Server 2008) Many thanks in advance!
View ArticleMySQL - GTID replication - Alter Retrieved_Gtid_Set
I have replication set up between 1 master and 3 replicas using GTID. All 5.6.26 The problem Replication stopped working on one of replicas and I figured out it was because somehow the replica had...
View ArticleMySQL replication - Slave won't start mysql service
I'm testing MySQL replication on two virtual machines with VirtualBox running Debian 8.2. Following tutorials, this is how I set the slave's /etc/mysql/my.cnf: server-id = 2 master-host =...
View Articlereplication over internet- sql server 2012
I'm having trouble configuring merge replication over untrusted domains. I have a remote serverA which has a real IP and I configured this server to be his own distributor and publisher and also a...
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