Write-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 ArticleAttunity Replicate sample installation
I am trying to install Attunity Replicate into a local virtual machine with CentOS 7 on it. I can see that it is running - using 'ps -ef | grep repctl', and I know that the 3552 port is open in the...
View ArticleTransaction Replication - Conditional Delete
I recently was given a task to see if there is a way to configure conditional deletes on transactional replication. All the user deletes and application delete should be replicated but I don't want...
View ArticleHow do I convert a postgres 9.3 Slave to read-write without Impacting the Master
I have a Postgres 9.3 Master-Slave stream replication setup on Ubuntu. I would like to just convert the Slave into read-write by breaking the replication. However, I do not want the Master to be...
View ArticleMongo replicated shard member not able to recover, stuck in STARTUP2 mode
I have following setup for a sharded replica set in Amazon VPC: mongo1: 8G RAM Duo core (Primary) mongo2: 8G RAM Duo core (Secondary) mongo3: 4G RAM (Arbiter) Mongo1 is the primary member in the...
View ArticleWhy not replicate System User across environments in AEM 6.1?
I can see a lot of recommendation to not create System Users via API (maybe it is not possible?) or to not replicate System User across environments (via package bundle for example). I'm curious,...
View ArticleIs it possible today to replicate 30 TB from multiple databases to PostgreSQL...
If you had 20 databases spread across 20 servers, could you replicate them all into a single PostgreSQL instance? And can this be done on a server costing less than $100,000? The databases total 30 TB...
View ArticleOptions for having same tables in 2 different data bases
I need to know what options I have for my next problem: I have 2 databases (sql server 2012) first for an ERP second for an website For the website's database, I want to use a table (customer) which...
View ArticleUnable to truncate transaction log
This morning i was woken up by a transaction log full alert on one of our database. This server is an alwayson cluster and also a transactional replication subscriber. I checked log_reuse_wait_desc...
View ArticleCould not obtain information about Windows NT group user
I am creating a SQL Server Replication using a script. When I try to execute The job failed. Unable to determine if the owner (STAR\moorer7) of job L3BPT2M-Atlas-14 has server access (reason: Could...
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MySQL 5.1.66 SSL connection error ERROR 2026 (HY000)
UPDATE2 Using WireShark I found out the problem string (I hope I did): 28 | 9.582638 | 192.168.18.128 | 192.168.18.129 | MySQL Response Error 1043 And the error is (according to docs): Error: 1043...
View ArticleError while doing in replicaset in windows (mongodb)
I tried doing the replicatset in windows, but im getting the below error. I checked the mongo process and killed the existing process. Even though the error exists. help me on this pls Thx commands...
View ArticleReplication Issue - Changing the replication-do-db filter
I have a server that someone has setup which are acting as a master on both database. Since they have been configured as both master on the same database, changes one on end has caused all sorts of...
View ArticleNon-Replicating commands from (master) Mysql 5.5.40 to (slave) MariaDB 10.0.19
CRUD replicates just fine. But we noticed that DB structure altering commands such as ALTER TABLE and/or adding/updating columns to a table and even creating new ones do not replicate to the slave at...
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A timeout occured after 30000ms selecting a server using CompositeServerSelector
I try to deploy my mongo database in mongolabs , everything works fine, and i create a new database in mongo labs, Please see my connectionstring. public DbHelper() { MongoClientSettings settings =...
View ArticleDocument Store & Relational DB Hybrid. Exists? Possible?
Does anyone know of any product or open source project that attempts to strap together Mongo DB and MySQL for instance? I hear a lot about how relational DBs being ACID compliant makes it nearly...
View ArticleKeepalived vIP as Galera wsrep_cluster_address
I have a MariaDB Galera cluster. If some nodes fail, I cannot blindly restart them, I have to determine a good wsrep_cluster_address first. If I can keep a keepalived virtual IP on one of the healthy...
View ArticleMongo initial sync failing with InvalidSyncSource
I'm trying to add a new 3.4 (RocksDB engine) member to a ~2 TB replica set currently consisting of 3.2 (WiredTiger engine) members and running into problems with the initial sync. Because of the...
View Articlemysqlfailover automatic failover is not enabled
i use mysqlfailover mysqlfailover --master=root@132.232.142.73:3306 --discover-slaves-login=root --slaves=root@12.32.53.2:3306 --report-values=health --verbose --failover-mode=auto...
View ArticleMySQL - Force replication to statement for INSERT to a table to fire trigger...
We have a PROD DB which replicates into a slave DB using mixed replication. We want to add a trigger so that a row is added to our DW when a row is INSERTed into table_a (on master). The issue is that...
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