Replication is the process of sharing any level of information so as to ensure consistency between redundant hardware/software resources to improve reliability, fault-tolerance, and accessibility

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SQL Server 2005 to 2012 Replication, cannot access replicated data

I have created publication (snapshot, small table with 10 rows) on MS SQL Server 2005. Then, I created push subscription on MS SQL Server 2012. When I try to select data form table, process takes ...
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25 views

How do I get the MySQL binary log coordinates from the binary files?

I'm attempting to set up replication for a large (120 GB) MySQL database and I messed up. I shut down the master, copied the data files, and restarted the master. Now I've set up the slave & ...
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153 views

Mongodb replica sets: why does my master server occupy more disk space than my slave?

I have two servers on my replica set. Let's call it the master and the slave, for the purpose of this discussion. The master was the original one, and the slave was replicated from that master. At ...
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1answer
669 views

All four data nodes in MySQL Cluster in same node group

I am testing MySQL Cluster 7.2. I have two servers, mysql1 and mysql2. I want the management server and two data nodes to run on mysql1 and two other data nodes to run on mysql2. My config.ini file ...
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1answer
41 views

Streaming replication and lag when performing VACUUM on master

My streaming replication standby server is showing a delay of a few minutes when vacuuming a large table on the master. What is the reason for the lag, and is there a way to reduce it? Both servers ...
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54 views

MySQL v5.1.73 - can the binlog_format betweem Master & slave be different?

We are in the process of testing MySQL replication before using it in production. The MySQL is being setup by Puppet in our case and I noticed that the binlog_format setting is different between ...
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32 views

EC2 and setting up MYSQL Replication

my database size is very big around 100gb and when I restore it takes 3 days to restore. I am using amazon ec2. My question is I want to setup a new slave to MYSQL master, can I take a snapshot of ...
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9i streams capture doesn't evaluate rules

I have a streams replication set up between two oracle 9.2.0.8 instances as sources and an 11g instance as a destination, processing a small subset of data from each database (let it be one table ...
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1answer
725 views

mysql replication - missing table for foreign key on slave

i have the following situation: We're running a simple master slave replication with table filters, so the slaves doesn't have all the master tables. Master has table A with FK to table B Slave has ...
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1answer
63 views

Non-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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How to remove master role from MySQL server

I have 2 MySQL servers, one is the master and other one is slave, that's all good. The problem I have is that the slave is also set up as a master. I would like to disable or remove the master role ...
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1answer
29 views

MariaDB cluster and external data feed

I've just finished setting up the 3 nodes mariadb (galera) cluster (let's call the nodes node1, node2 and node3). In order to have the cluster up to date with currently working mariadb database (let's ...
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1answer
82 views

Postgresql Hot Standby - How to determine it's fully mirrored?

I have set up a hot standby of a postgresql server. It all seems to be working, but I just want to be sure that I'm not missing something. In /var/lib/pgsql/9.2/data/pg_log/postgresql-Wed.log I have ...
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2answers
54 views

mysql master slave replication scenario

We are creating a new mysql slave, but for dump we are taking from a backup server which is a slave of current master. Now to enable replication we want to connect it with the master so should I take ...
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25 views

Replicating table level PostgreSQL 64bit windows

I need to replicate some tables on PostgreSQL 64bit for Windows (master -> slaves replication model) and I can't find any tool that can achieve that. Slony-I work very well for PostgreSQL 32bit for ...
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578 views

Postgres database zero down time production deployment

I need some idea about how I can deploy a financial application in production environment using PostgreSQL DB with zero down time. I have two servers in Master-Slave design. Currently I am giving ...
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1answer
498 views

SQL Server Cross Domain Transcational Replication

Has anyone got any documentation for doing/implementing Cross Domain SQL Server 2012/2008R2/2008 transactional replication document or steps (with screenshot or without screenshot)?
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Transactional Replication breaks when schema is changed in Publisher

We have set up Transactional replication where in two Publishers feed into one Subscriber , now if try to change the schema of any one Publishers or both publishers, replication breaks. We have ...
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15 views

bdr_int_copy issues and confusion

I am hoping someone can clarify a few things for me. I am having issues getting my 2nd node to join the first node using bdr_init_copy In a nut shell here is my scenario on node 1, i create a couple ...
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1answer
19 views

How can I view when mysql mixed mode replication is logging a statement using row or statement format?

I have a couple of servers running in MIXED mode replication and I do maintenance regularly on them deleting a decent sized set of data. There is one table that had no primary key and is just used for ...
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1answer
33 views

SQL Server Replication - FTP Snapshot: Policy requires SSL

SQL Server 2014 on both Publisher & Subscriber. Publisher & Subscriber are across the internet. Replication is Transactional Replication Error messages: The process could not connect to ...
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2answers
35 views

mysql table replication on just some records?

I have a big database which contain a table with about 26 million records. Now i need to make some reports on it from a special period of time. So how to make a replication from that table from a ...
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migrating MYSQL 5.5 to percona xtradb cluster 5.6

if we have to migrate MYSQL 5.5 using statement based replication to percona xtradb 5.6 would that be possible. What we want to do is to make percona xtradb cluster a slave of our current MYSQL and ...
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1answer
941 views

Merge reports 'You must rerun snapshot because current snapshot files are obsolete', gets caught in Death Loop

We have a very large Merge publication for a data warehouse with some large (.bcp files on the order of 20GB) fact tables that is causing us tremendous trouble. Specifically, we created a publication ...
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1answer
74 views

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 ...
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29 views

Indexed view doesn't exist on the subscriber

I am configuring transactional replication in SQL Server. The subscription is configured as push from 2008R2 publisher (distributor is the same server) to 2012 subscriber. The object I want to ...
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93 views

SQL Server Replication questions

This is kind of the part 2 of Replicating a SQL SERVER database & Optimization that I started earlier this week, but I believe it owes to be a different questions now that I have a clear idea of ...
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MySQL - Master to Slave setup question

i have now setup a Master => Slave setup, after hard fightning its now working and this is great. the next step is, how can tell the slave if i create a new table/stroed procured or function on my ...
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52 views

is Master-Master replication ok for me?

I have two separated locations connected by a not too reliable VPN. I have a common system that depends on MYSQL that read/write tables. Will master-master replication keep both locations in sync? I ...
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3answers
74 views

Mysql Master Offline

In a unidirectional Master-Slave setup, should the slave be manually stopped in cases where the Master is offline due to Maintenance, Crash etc. ? Or should one just leave it so that it keeps trying ...
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1answer
43 views

Mysql Master - Master Replication

i have established a master A and master B replication between two servers.Both are getting replicated.But it is limited with only one database. My questions 1.How to create a new database in ...
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1answer
36 views

Distribution database(recovery pending)

Firstly I was trying to create a distribution database and I succeded at first but since I checked the box to configure SQL server Agent to start automatically, the last step of configuring ...
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1answer
843 views

MySQL Master/Slave Master/Master setup?

I currently have 1 mysql server running and want to install 2 seperate mysql VPS'es. Maybe one master for inserts/updates and one slave for selects. What is the best setup for this if I have the ...
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Replicating from MySQL 5.1 master to 5.6 slave failing because 'INSERT … VALUES (NOW())' results in 'Error_code: 1062'

I am migrating away from some old MySQL 5.1 servers to some new MySQL 5.6 servers. During this process, I'm creating a new MySQL 5.6 slave from an existing MySQL 5.1 slave, using the procedure in the ...
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1answer
56 views

Table partitioning in MYSQL Master Slave

I have to Partition a MYSQL table using Range partitioning. Table is 200M rows big and I have Master/Slave replication. What I want to do is to stop replication on slave, partition the table on ...
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1answer
110 views

Replication Lag on Postgres AWS RDS Service

We have a single master/single streaming replica Postgres 9.3 db on AWS. The load is not terribly high - this is a development/staging environment. (The production shows similar metrics). Point is the ...
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1answer
42 views

MySQL replicate-rewrite-db ALTER TABLE not rewritten

I have a production database called "master" that I want to replicate on another server under another name (call it "slave"). All worked fine until an ALTER TABLE statement was performed on the ...
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31 views

Replication Data Issue

After configuring replication all the data from tables has replicated from publisher to subscriber. Now my requirement is whenever I insert new record in publisher only that record should replicate ...
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1answer
35 views

How can we configure the Streaming Replication(master-slave) on single SAN storage in PostgreSQL?

I want to configure the Streaming Replication in PostgreSQL.My data directories of Primary and Standby are in same SAN storage.Is it Possible to do replication.
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Master Master replication not working showing

error from master 1 Last_SQL_Error: Error 'Cannot add or update a child row: a foreign key constraint fails (stylanzo_live.report_viewed_product_index, CONSTRAINT ...
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2answers
63 views

Master/Master/Slave Replication

Just trying to get some information on the best route to setup replication for this DB I've got. I'm using MySQL 5.1 I found this and it seems like the idea we have in mind. We're looking to have ...
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14 views

Maintaining Data Window

My specification requires that a remote machine maintain a 'data window' that consists of a subset of rows from a table in a local database. This window can move depending on the current value of a ...
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SQL Server Replication: Central Subscriber : Loading data in the same table

I have configured a Transactional Replication from Oracle (11g) to SQL Server 2014. I have many clients with the same database and we want to have a Multi-Publisher and only one Subscriber. The ...
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40 views

Run MySQL replication by schedule or on demand

I have a master-slave replication currently configured. I know this setup runs real time. Is it possible to sync only the databases on schedule (daily or weekly) or by demand? Thanks!
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BDR Replication issue

I am trying to setup 2-node BDR replication and i am getting the following error while running bdr_init_copy. /usr/pgsql-9.4/bin/bdr_init_copy -d "host=10.10.145.111 dbname=apimgtdb port=5432" ...
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1answer
31 views

Optimize slave .ibd tables, where slave has innodb_file_per_table and master does not

We are trying to reclaim file space on our replication server. The space we want to reduce are .ibd files on the slave. We have a simple Master -> Slave (read only) replication setup, for some reason, ...
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47 views

Column based replication in mysql 5.6

I want to do column based replication which means: In my server, I have table T1 in which columns are A, B, C, D, E I want to replicate this table on different server in mysql 5.6 only, but with ...
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Insanely slow replication after MHA promotion

I have a replication setup with 1 master and 3 slaves. I promoted the current master to one of the slaves using MHA. That went seemingly flawless, not errors reported, everything marked ok. Spot ...
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Replication in same server within different databases. Mysql 5.6

What I have : a windows machine with one instance of MySQL 5.6 Server. two database named test and test2. Test database has a table called activity with columns id and class What I need : ...
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124 views

Is Neo4j 2 replication architecture a master-slave or multi-master?

In the new docs of Neo4j (23.1. Architecture) it says that: When running Neo4j in HA mode there is always a single master and zero or more slaves. Compared to other master-slave replication ...