Using Galera Cluster(Percona XtraDB Cluster, MariaDB Cluster) for setting up...
Before i gotta use one I want to know if it is working in windows OS cause I saw a lot using it in linux OS. Does using galera (Percona XtraDB Cluster, MariaDB Cluster) cluster works in windows?
View ArticleMysql dump import shows error 1556 (HY000) "you can't use locks with log...
I'm trying to setup a replication slave for an existent MySQL server. Therefore I dumped all data from the master like this: mysqldump --skip-lock-tables --single-transaction --flush-logs --hex-blob...
View Articlemongo converting standalone to replica set causes services down
I have standalone node1 already running for a long time. Now I want to convert it to replica set. I followed steps in https://docs.mongodb.org/v2.4/tutorial/convert-standalone-to-replica-set/ to...
View ArticlePostgresql Streaming replication - monitoring
I have setup streaming replication for my postgres servers. I am using PostgreSQL 9.2.6. Replication seems to be working fine. I am monitoring this with two ways using nagios: Log_delay and Byte_lag I...
View ArticleIs it possible to synchronize multiple databases in to 1 database with the...
We are facing a situation where we have 5 different businesses with comparable data and are building 1 single application to deliver their data to common customers. In order to do this, the plan is to...
View ArticleOptions for creating a read-only replica of a DB2 database
We are a dev company that develops and supports an application based on DB2 LUW 10.5 for a customer. We have a VPN that gives us access to our customer's production environment, and we often connect to...
View ArticleHow to Properly shutdown and disassemble SQL Database Replication
While testing SQL Server Replication we setup Replication on our ERP Test DB from SQL Server Enterprise to SQL Server Standard. We have since got replication up-and-running on our Live database and we...
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Cannot start SQL Server replication as already running
I'm trying to configure a sql replication on the sql server 2012 . I am logged in as "sa", when I attempt to start replication i get the following error : How can I stop this job and restart the...
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Permanent count of waiting tasks (2) in Activity monitor
Now I'm observing in Activity Monitor permanent count of waiting tasks: and at "Resource waits" tab I see next: so, my question is: How to find and resolve this wait tasks? I suspect that it related...
View ArticlePostgreSQL streaming replication with slots works for one slave, but not for...
Master (10.0.0.1): Edit postgresql.conf listen_addresses = '*' wal_level = logical max_wal_senders = 3 max_replication_slots = 3 hot_standby = on Edit pg_hba.conf host replication postgres 0.0.0.0/0...
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SQL Replication across the internet give named pipe error
We've had a db replication working between two servers across the internet. Server A is sitting on our server network (Windows Server 2008 + SQL Server 2008 R2) Server B is sitting on a different...
View ArticleHow to handle DDL statements (create,alter,drop) with row based replication...
The for row based replication MySql documentation states that: "For statements such as CREATE TABLE ... SELECT, a CREATE statement is generated from the table definition and replicated using...
View ArticleHow to check the replication delay in PostgreSQL?
I would like to measure time between insert data into master-table and slave-table using streaming replication in PostgreSQL 9.3. For this I create table test_time with 2 fields id(serial), t(text)....
View ArticleHow to recover Postgres replication slave after fatal error
On 4 Debian 8 Jessie servers, I have PostgreSQL 9.4.3 master + 3 slaves. After substantial data changes on master, slave logs showed this error: LOG: started streaming WAL from primary at 182/0 on...
View Articlept-table-checksum Waiting for the --replicate table to replicate
I'm really new to using the percona tools, and I'm trying to learn how to use them correctly. I’m having a problem with replication drift in my 4 node mysql setup. I’m running a wiki on this setup. And...
View Articlemysql percona toolkit Waiting for the --replicate table to replicate -...
I'm really new to using the percona tools, and I'm trying to learn how to use them correctly. I’m having a problem with replication drift in my 4 node mysql setup. I’m running a wiki on this setup. And...
View ArticleSQL 2012 Merge replication not replicating all changes
Having a problem with replicating a database between two servers, both running SQL 2012. We have a table where each site that stores the database updates a record every minute with the current time...
View ArticleMySQL 5.6 replication causes 'waiting for table lock'
All of the sudden queries on slave server stopped with status "Waiting for table level lock" I restart mysql service and stop replications and locking does not show up anymore. Once I turn replications...
View ArticleGalera MySQL replicate specified table
I need to build multi master MySQL replication (star topology) on 3 data server. I'm using GALERA http://galeracluster.com/ to implement it. It all work fine just as expected, based on the...
View ArticleCouchDB replication - Unauthorized to access or create database
I am trying to setup a CouchDB database replication but both is not working via Futon and cURL/CLI: It ends up with the following error message in both cases:...
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