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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Can't connect to MySQL 5.5 with SSL

I am trying to get MySQL SSL replication setup for two brand new RHEL 6.6 x64 servers. I have replication working without SSL, but I can't get it set up with SSL, and can't connect directly using SSL ...
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2answers
231 views

Invalid method Parameter when calling DfsrConnectionInfo->ForceReplication() with WMIC

In our AD infrastructure the SYSVOL is replicated by DFSR. I want to force replication using WMI (ForceReplication method) via WMIC: wmic /namespace:\\root\microsoftdfs path DfsrConnectionInfo call ...
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2answers
1k views

MySQL: Replicating the MySQL database

I have a primary write server (server1) which replications to two servers (server2 and server3) which are query servers. I am replicating all databases to these servers including the MySQL database. ...
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1answer
808 views

Windows Server 2003 AD Replication error 1864

Quick question on Active Directory replication. The AD topology is simple: Hub site and 10 Branch sites. I have one connection object between Branch "A" DC and Hub DC in Active Directory Sites and ...
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2answers
201 views

LDAP syncrepl with kerberos authentication

I'm trying to set up a replication server for LDAP using syncrepl. I would like to use Kerberos to authenticate the consumer, because we have it set up, and it seems more secure. The database ...
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2answers
125 views

Location dependant dns redirection

I have a corporate network with two sites. Each site has its own domain controller with dns service and both domain controllers are servicing the same company.net domain. We have an mpls network set ...
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59 views

Not received replication information orphaned domain controller win 2008 R2

All 3 our domain controllers in 3 different sites keep generating the same active directory error. This directory server has not recently received replication information from a number of ...
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1answer
242 views

remote Powershell script Scheduled task

I am having trouble running a Powershell script as a scheduled task. The script remotely logs into two Hyper-V hosts, queries the replication status and emails the result back to me. The script works ...
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5answers
1k views

mysql replication stop/start causes duplicate rows

We're using pretty simple MASTER->SLAVE MySQL query-based replication. Every midnight a cron script on the slave stops the replication SQL_THREAD, backs up the slaves databases with mysqldump and ...
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3answers
777 views

Rebuilding corrupt slave by copying mysql folder

Rebuilding an existing slave from a master using cold-copying of /var/lib/mysql, would this be the proper process/order? Anything missing? master mysql> SHOW MASTER STATUS\G (take notes) slave ...
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2answers
817 views

Status of replication support in ApacheDS?

The features page indicates they're expecting to support multi-master replication "soon". Does it have any basic master-slave replication yet or does it currently not support any form of replication? ...
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126 views

combine two mysql replication log files

So I use a master-master replication of a mysql database and load balance traffic between the two. This results in server A with a binlog of all it's transactions and Server B with a binlog of only ...
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2answers
176 views

Replicated shared filesystem

I'm looking into setting up a shared filesystem/file server on AWS (EC2) infrastructure that offers replication and fairly painless failover. This filesystem would host potentially millions of files ...
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1answer
56 views

Does Hyper-V Replication support memory replication?

Does Hyper-V replication support the replication of memory, or is it just the deltas between disk writes? ie, in a fail over situation would a server with a memory fault have this same memory fault ...
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1answer
118 views

GlusterFS replication between DCs without unnecessary overhead?

For testing purpose, I installed four GlusterFS nodes and created a replicated volume with a replicate count of 4. Two Gluster nodes reside in DC A, while the other Gluster nodes reside in DC B. Now ...
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0answers
152 views

Postgres streaming replication over Internet

all: I want to set up two PostgreSQL servers, one as master server and the other one as a hot standy, using streaming replication. I have done this before in LAN environments, but I would like to ...
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3answers
486 views

Replicating a linux web server

I'm planning on replicating a web server for high availability purposes. The server is running as a Ubuntu 15.04 virtual machine in Hyper-V and has MariaDB 10.0, Apache 2.4 and PHP-FPM 5.6 installed. ...
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1answer
184 views

OpenLdap Replication

I have installed openldap on two machines and tried to setup multi-way replication.I am able to perform the multi-way replication (Add/Update/delete) when both the machines are up and ldap is running. ...
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1answer
207 views

Replication not working on DC

I am getting the following error (4612) on my secondary and tertiary DCs: The DFS Replication service initialized SYSVOL at local path C:\Windows\SYSVOL\domain and is waiting to perform initial ...
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1answer
102 views

Changing tablespace on table with streaming replication

I've been searching for answers for a while know but can't find any reliable source. We have 2 postgres servers that replicates using streaming replication. I now need to move some tables to a ...
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1answer
226 views

Best way to copy file server 2008 r2 contents to a new 2012 r2 server [closed]

I am making a DR site over the cloud and want to upload all my file server contents in the fast and most suitable way. There are many options like; XCopy Robocopy DFS Replication Third party tools ...
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0answers
80 views

glusterfs unable to read gsyncd status file

Goal I wanted to try glusterfs geo-replication in some virtualboxes on my computer for later use distributed on multiple sites. Configuration I installed glusterfs 3.6 on ubuntu 32bit servers like ...
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1answer
547 views

Domain controllers won't replicate

I recently removed a secondary domain controller (forcefully) and created a new one as secondary for the same domain. The problem is, is that the new secondary can see the primary and itself, but the ...
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3answers
3k views

GPO Replication SysVol Inaccessible on Windows Server 2003

In our current AD setup, we have the following Domain Controllers: DC1: Server 2012 R2, Operations Master (All roles) DC2: Server 2012 R2 Mailserver1: Server 2003, Also hosts Exchange 2007 The ...
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1answer
263 views

LDAP Replica with TLS

I'm having trouble to run the replica LDAP with TLS, without TLS, all works !! Provider and Consumer are identical CentOS release 6.5 rpm -qa | grep ldap openldap-clients-2.4.23-34.el6_5.1.x86_64 ...
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12 views

Postgres 9.3 maximal cluster size with streaming replication [duplicate]

First, I quote from https://wiki.postgresql.org/wiki/Binary_Replication_Tutorial: In Streaming Replication, the master and the standby have special processes called the walsender and walreceiver ...
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1answer
242 views

Server with multiple replicate=do-db entries

I have a server that someone has setup which are acting as a master-master on both servers. Since they have been configured as both master on the same database, changes in one end has caused all sorts ...
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1answer
695 views

Amazon RDS replication with external slave

I've recently configured a replication with an external MySQL master and RDS as slave but now I need to reverse that config and use RDS as master and the other instance as slave. Actually I use a vpn ...
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1answer
63 views

How do I set up a geographic mirror site for LAMP?

I have a server that's running on the standard LAMP stack. I have web services that read a MySQL database to control access to certain content. If the content is allowed to be accessed then it is ...
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55 views

How perform a offline defrag of the the DFS Database

I have read in some posts that an offline defrag of DFS database you should do in case of an error (Jet Errors for example) during replication. Unfortunately, nowhere do I find a guide on how I can ...
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1answer
575 views

Tomcat does not replicate session attributes

I am struggling with configuration of session replication in Tomcat cluster. Ramki's articles about Tomcat Clustering helped me a lot. Load balancing and sticky session works well. SessionIDs are ...
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1answer
68 views

Main server 2008R2 crashed. Need to copy AD from another server in same IP range

Unfortunately the main server crashed and I have re-installed Server 2008 R2 Standard in it. The server had only ADDS, DNS Services and File Services. I have the AD on a desktop computer where Server ...
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1answer
97 views

What is the difference between Site Link Bridges and BASL?

I have a hub and spoke network where the spokes can't communicate with each other. I understand that BASL is what's responsible for making links to sites that are non routable. How does a Site Link ...
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1answer
35 views

Postgres replication via different interfaces

I have one PG master server that replicates itself to one slave server. Also I would like to replicate this master to slave that is in another network. Master has 2 interfaces, and there are ...
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82 views

Best practice of using MongoDB Replica Set on AWS EC2

MongoDB needs at least three replica set members on independent locations to work automatic failover correctly. However, some of AWS Regions (such as ap-northeast-1) have only two Availability Zones. ...
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1answer
1k views

How to filter columns in SQL Server replication?

I need to replicate some data from two tables in one database to another databases. I used snapshot replication. The issue is that I would like to replicate only some selected columns and the others ...
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1answer
56 views

Error when using sp_addscriptexec

I have tried to run the following command on my server that is using sql 2008 merge replication sp_addscriptexec MyPub, '\\my-server\MSSQL\updateTablePermissions.sql', 1 and I get the following ...
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2answers
130 views

What type of AD replication is needed for a non-mesh Hub and Spoke network?

I'm having AD replication issues (OUs not replicating, FRS, etc) and suspect the issue is that the network admins have modified AD Sites And Services in ways that disabled the ISTG and other aspects. ...
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3answers
2k views

MySQL “Duplicate entry” Errors on the Slave break replication all the time

I followed this tutorial: https://www.digitalocean.com/community/tutorials/how-to-set-up-master-slave-replication-in-mysql Unfortunately the replication stops on the slave all the time with: ...
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1answer
288 views

Replication with Veeam causes timeouts on large VM's

I have been trying to replicate two of my larger VM's one being Exchange 2003 and once the snapshot begins to commit the server begins to time out. I have updates my ESX hosts from 4.0.0 to 4.1 and ...
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3answers
9k views

Run a MongoDB configuration server without 3GB of journal files

For a production sharded MongoDB installation we need 3 configuration servers. According to the documentation "the config server mongod process is fairly lightweight and can be ran on machines ...
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1answer
2k views

Active Directory Replication Errors

I am very new to this so bare with me, but we just installed a second Domain Controller on our domain. The installation of DC 2 went along with no hiccups. However I am running into an issue with ...
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185 views

Problems with OpenLDAP-Replication

we just set up a Ubuntu Server with OpenLDAP running. We also have a second server, running Ubuntu as well. Now i tried to set up the replication using this guide: ...
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Does having an extremely high number replication partners in Active Directory pose an issue in 2014?

I'm consulting a network where they have 5 domain controllers in central location and a lot of Read Only controllers in additional locations. SCOM is shouting that there are extremely high number ...
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1answer
58 views

How do i replicate files between two different file structures?

I've got a directory which contains hundreds of thousands of files. A file typically looks like this : CED375_description_01.jpg. I need to move this file to another directory, but the file needs to ...
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1answer
80 views

Sql server 2008 - server name changed

I have changed the computer name of the server where sql server 2008 r2 is installed. Old name is WIN-OUJEKRMGXXX and new server name is KASURDYYY When i configure replication following error occurs: ...
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0answers
85 views

Can I get a running list of executed queries from mysql to trace problems?

This question was formerly: "Mysql replication logs are filling disk and halting server". However, I'm asking the community if there is a command line trace or live log that I could tail -f and see ...
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3answers
400 views

Disaster Recovery - using Double-Take for live replication to DR on a developer's client machine with Visual Studio running

Our Systems team is implementing Double Take on client machines for live replication to DR servers. Developer's desktops typically have multiple instances of Visual Studio open at all times which ...
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2answers
304 views

Build a IIS and SQL Server replicated cluster [closed]

I have four Microsoft Windows Server 2012 R2 Standard virtual machines on three physical nodes. Two will be dedicated for IIS, and two for SQL Server 2014 Standard. I have to replicate them (IIS1 to ...
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3answers
808 views

Best Solution for Load Balancing geographically distributed NFS File Access? [closed]

I'm trying to find an optimum solution for accessing the NFS file share in my company. We have a central file server in North America and has 30GB~50GB of updated data everyday. And it's very slow for ...