Replication is the process of sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility.

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Windows Domain replication monitoring tool

I am looking for web-based interface GUI, or some kind of monitoring tool that will show replication status for a domain. I know I can use repadmin with various options on the command line to query ...
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3answers
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Create a MySQL slave from another slave, but point it at the master

Problem I have MySQL replication setup between 2 servers, master (A) and slave (B). I need to add a new slave to the mix (C). I want this slave to get it's updates directly from the master, I do not ...
40
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10answers
5k views

PostgreSQL Replication

We constantly bat this around the office, and the question continues to come up. How do you deal with PostgreSQL replication? I'm not even necessarily talking about advanced clusters, just keeping it ...
11
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4answers
947 views

Has anyone ever used SMTP site links?

A simple real-life question, inspired by a comment here: Active Directory has supported inter-site replication using SMTP instead of direct RPC since its first introduction in Windows 2000. But did ...
6
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6answers
4k views

Is it possible to use an EC2 RDS MySQL instance as a slave to an external master?

I have a master MySQL instance running on our local network, but I was wondering if I can get an EC2 RDS instance to replicate the master or is this locked down by amazon?
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6answers
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MySQL replication out of sync

I have a master-master replication system. However, due to an auto-increment issue, I got an error in replication...and it stopped replicating. Someone told me to do: stop slave; SET GLOBAL ...
3
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1answer
694 views

M-M or M-S replication of EBS volume across multiple EC2 instances

I would like to share EBS backed file system of size up to 20GB in 200K files across multiple EC2 instances. Master-master would be ideal, but I'd be happy with master-slave solution too. I know that ...
2
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2answers
2k views

Options for continuous one-way replication of tens of millions of files on Windows Server?

We have a very large Windows file store (several terabytes and tens of millions of files) that I want to keep in continuous replication over to another server, in as near to real-time as possible. I'm ...
2
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4answers
2k views

How do I mirror a MySQL database?

I'm running two load balanced servers for one website, and I'd like the databases to be synchronized. Queries may be run on either of the two servers because they are both production sites, so the ...
1
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2answers
440 views

Distributing SQL Server on Internet regarding security issue

We are going to put our servers in two places to keep high level redundancy and to avoid bandwidth critics. The two servers are on different LANs but communicate over a WAN network (via Internet). One ...
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2answers
2k views

Server 2008 DC rejecting replication requests

Have a DC that has recently been part of a business continuity test. From what I understand the server (which is virtual) was snapshotted, test carried out while the link between the two sites was ...
12
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3answers
3k views

How fast is MySQL replication?

I'm considering setting up replication of our mysql db to be able to have local slaves in each of our branch offices, while having the master in the main office to improve application performance ...
12
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3answers
3k views

MySQL Replication Performance

I'm having a serious issue with MySQL 5.5 replication performance between two machines, mostly myISAM tables with statement based replication. The binary logs and mysql data directory are both located ...
2
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3answers
4k views

Using GlusterFS for simple replication

newbie question. I need to build this: /shared folder ~500GB of files, ~1MB each one. Two boxes (server1 and server2) connected by a 1Gbs LAN Every box needs to get r/w access to the files, so ...
6
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9answers
6k views

Make identical copy of Centos

I have a CENTOS server running and i want to make identical copy of it(all software,users), like twin server for mirroring purposes. how do i do that?
5
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2answers
3k views

Way to avoid server downtime when creating Master - Slave relationship?

I am preparing for setting up a MySQL master-slave or master-master relationship. Right now I have a single MySQL production server, and of course I don't want a lot of downtime while I connect the ...
4
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2answers
2k views

MySQL says replication is fine but data is not copied

The setup The setup is very simple and straightforward. It's a pair of Debian servers with a Gigabit link in between. MySQL is stable Debian Lenny version and OS is Debian Lenny. Configuration The ...
2
votes
4answers
529 views

Solution for two-way file-system transparent solution

I need to implement some sort of HA setup where 2 servers need to be able to always be in sync, no matter on which one you write on. The DB part can be covered by a master-master replication setup. ...
2
votes
1answer
1k views

mysql - SQL slave thread is not applying changes

I have master/slave replication with 5 slaves and 1 master. The master is mysql 5.1.37 and the slaves are 5.5.8. Two days ago one of the slave stopped working. In "show slave status" I see that both ...
2
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5answers
3k views

A simple Volume Replication Tool for large data set?

I'm looking for a solution to the following: Server A (Site A) - Win 2008 R2 - approx 10TB (15TB max) of data - well over 8 million files Server B (Site B) - Win 2008 R2 I want to ...
2
votes
4answers
967 views

Mysql replications: slave is not readonly

After setting up mysql replications with master/slave db scheme, I noticed that the slave db server is not read-only. Of cause, after that I configured it manually in /etc/my.cnf file. I just can't ...
2
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8answers
3k views

Windows Server Almost Real-Time Directory Replication

The environment Windows 2003 R2 Standard File server Windows 2003 Web Edition server The challenge Need a way to mirror a directory (or share) from the file server to the web server. It needs to ...
2
votes
2answers
262 views

Should I avoid SQL Server Replication?

I have an app that is used by people in the US and in China and the database sits in the US. The people using it in China complain that the performance is poor, so I was thinking of using SQL Server ...
2
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3answers
607 views

Mysql Replication - are per-database threads possible?

I manage a MySQL server hosting over 100 databases. We have set up standard master-slave replication, but the SQL Thread tends to break every so often, and requires manual intervention to re-start ...
2
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2answers
2k views

MySQL 5.1 Replication Topologies: Multi-Master

Hallo :-) Once again I'm on the hunt for new knowledge, I'm a part-time DBA as part of my current job, and am particularly interested in any documentation or reading around doing bulletproof ...
1
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1answer
908 views

How can I set up an Amazon RDS for PostgreSQL database to act as a replica to a non-RDS PostgreSQL database?

I'm trying to set up an PostgreSQL database on Amazon RDS as a replica to another PostgreSQL database that lives on a regular server. Most of the instructions I've found online require shell access so ...
1
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1answer
1k views

Windows Server 2003 SP2 - JRNL_WRAP_ERROR (Sysvol)

SETUP: Windows Server 2003 SP2 with a replication error (this is the only DC in the domain) [image below]: Journal Wrap Error on sysvol share Is there a way to find out what is ...
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1answer
2k views

Clearer understanding for glusterfs for replication

On server01 I have installed and configured glusterfs-server and glusterfs-client to replicate directory /var/appdata to server02. It seems that anything works fine, but I'm not sure that I ...
1
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3answers
1k views

Sharing / replicating EBS across AWS nodes

I would like to use single EBS storage across multiple EC2 nodes (web/app servers). I've read some articles on snapshot sharing, but that doesn't suit well for what we need. We use filesystem for ...
0
votes
1answer
2k views

How long does initial replication take in DFS?

I have two windows servers, one 2008 SP2 R1 ( x86 ), and the other 2008 R2 running a 2008 DFS namespace, and replicating between the two. I have approximately 600GB of data being replicated over a ...
2
votes
3answers
749 views

Active Directory set up with replication — need a way to control login authentication host

I have two Active Directory servers set up with replication, ad2 and ad4. ad4 has a higher latency than ad2 as it is offsite. All clients are supposed to log in and authenticate to the ad2 server. The ...
2
votes
1answer
2k views

MySQL replication of only one database

I just wanted to check on the replication setup I've got working. The plan was to replicate just one database, so per the MySQL documentation I used the replicate-do-db flag in my MySQL configuration. ...
1
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2answers
246 views

mysql replication 1x master, 1x slave

I have just setup one master and one slave server, but its not working.. On my website I connect to the slave server and I insert some rows, but they do not appear on the master and vice versa.. What ...
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3answers
42 views

database replication for new user signup

I have a database that stores the users of my application. When a new user signs up, a record is inserted into the database for that user. I have a replicated version (slave) of this database (using ...
1
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4answers
1k views

DRBD or similiar RAID over net on slow/limited networks

I am looking for ways to create some kind of file replication without losing too much performance on file operations. A real RAID is not an option due to non-technical constraints. As far as I ...
0
votes
3answers
1k views

Two way, multi-site replication in MySQL

We have MySQL 5.1 databases at 5 separate locations that we need to keep as synced as possible. Each office needs to read/write from/to the local server at that office, but I need the DB at each ...
0
votes
1answer
570 views

SQL Server 2005 on 2008 DC - Cannot change service user

I cannot start SQL Server 2005 transactional replication after I promoted my 2008 Server to a DC. A required privilege is not held by the client. This site suggests that I need to change the ...
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1answer
270 views

Building a Windows Server 2008 R2 (DNS, DHCP, AD, etc…) [closed]

I'm looking forward to build my own Windows Server 2008 R2 machine for a company that is in the process of establishment. I have some questions regarding the Windows Server. I'm pretty new to it .. I ...