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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Testing for Active Directory Schema modification (not upgrade)

I am trying to test a schema modification. That is i need to add one of the attributes to global catalog by modifying schema , initially in a lab which is exact replica.My questions are below; -> ...
1
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1answer
67 views

Replicate data across loadbalanced apache nodes

I am using haproxy that is pointing on 5 apache nodes, the problem is that I want to replicate apache data between those nodes. I have installed DRBD and it worked but on 2 nodes only The rsync is not ...
2
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1answer
190 views

DFS-R broken after renamed upgraded member server

I had an existing 2-way DFS-R replication topology set up, consisting of two servers, one was Windows 2003 R2 and the other Windows 2008 R2. This was working fine. Last week I upgraded the Win 2003 ...
0
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1answer
121 views

How to replicate web site files to web servers over WAN for LB sites?

I am working on a new setup for a a handful of websites of mine. My side business is growing (web hosting and light webdev) and I am working on a new infrastructure design using commodity hardware ...
2
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1answer
111 views

Exchange Local Continuous Replication - Seeding Fails

When setting up Local Continous Replication on an Exchange 2007 server's larger database, the wizard consistently fails with a message along the lines of: The log file xxxx for SERVERNAME\Your ...
3
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1answer
66 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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0answers
188 views

mongodb replication with admin authentication

I have three nodes of mongodb replication set 2 servers have the data and the third is an arbiter 54.83.20.44 : 27017 (primary) 54.197.243.55 : 40000 (secondary) 23.21.148.73 : ...
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0answers
59 views

What can be done to prevent “failed to flush master info” in MySQL replication?

I have two MySQL 5.1 servers setup with master/slave replication. I was previously using 5.1.41 for several years without issue. However, since I've upgraded to 5.1.72 (and did some other tweaks ...
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1answer
215 views

DFS Replication Manager on Failover Cluster Nodes

I currently have a VM architecture setup for high availability / manageability. The one point of failure is that I have a single windows 2008 machine that runs DFS replication across the servers in my ...
0
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1answer
92 views

Using Replication for Migration on MongoDB

I'm interesting in using replica set feature on Mongo as a method for smoothly migrating between machines. My Mongo database is currently a standalone instance. I realize the recommended practice is ...
1
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1answer
194 views

Postgresql replicas stuck in recovery (archive_command won't run on replicas)

We're currently running a master -> slave, slave, slave, slave set up using postgresql 9.2.8 with streaming and WAL-E/S3 for handling wal segments. Should all of the replicas currently be "in ...
6
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1answer
216 views

DFSr detected that a file was changed on multiple servers, but “winning” file and that moved to conflicts folder have same hash

We've just deployed a new DFS replication system between two Windows 2012 R2 servers. We cloned the DFSr database using MS's recommendations ...
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2answers
247 views

Check if MySQL Replication is in sync

The MySQL documentation about CHECKSUM TABLE is very minimalistic. My question: Is CHECKSUM TABLE a good way of checking if a MySQL Slave Table is in sync with the master? In other words: Can i use ...
1
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1answer
569 views

PostgreSQL master constantly demoted by pacemaker with repmgr

I'm in the process of setting up a PostgreSQL 9.2.8 cluster made of 2 nodes, one master, and one slave. I use streaming replication and repmgr 2.0. My platform is RHEL 6.3. Master and slave can be ...
0
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1answer
84 views

Do I need to manually promote a replication node to Primary after a Primary node failure?

I have a basic 3 member MongoDB replication set. 1 x Primary 2 x Secondary A = Primary B = Secondary C = Secondary The Mongod service on the Primary stopped, and as expected, one of the Secondaries ...
0
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2answers
267 views

Can't get AD inter-site replication to work over VPN

Background: We have a single-forest single-domain AD for our little company. We have two geographically separated sites with different subnets. Both sites have been added as sites with appropriate ...
4
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2answers
2k views

How to force active directory replication from one DC to another

I am having issues replicating AD from one DC to another. Both servers are Windows Server 2008 R2 SP1. I have used the GUI option in sites and service to force replication. I have also tried repadmin, ...
0
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1answer
138 views

MySQL: Does sync_binlog 0 delay replication?

If we set sync_binlog to 0, which can delay the OS syncing the binary log to disk, does that introduce any lag into the time it takes for slaves to replicate those binary logs? In other words, are ...
0
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1answer
94 views

SQL 2008 R2 replication with Oracle DB Server Issue

I am configuring replication between SQL 2008 R2 & Oracle DB server. Getting below error "ORA-01830: date format picture ends before converting entire input string (Source: MSSQL_REPL_ORACLE, ...
2
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1answer
80 views

Windows 2012 BCD process to boot from replicated LUN for Boot from SAN

For our infrastructure we have a production site and a disaster site with SAN-based replication for the LUNs on the Windows servers. So for our proof of concept we have one server on the production ...
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2answers
82 views

MySQL Replication threeway

We have MySQL Multi-Master replication setup between two servers ( A & B ). It has been working for a few years now and life is good. The management tool in our office connects directly to ...
0
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0answers
251 views

Secondary domain controller not converting to primary Server 2012

I was running my AD DS and DNS on an evaluation copy of Windows (let's call it old server). It was getting restarted after every 1 hour. So I installed a new machine with licensed version and created ...
1
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1answer
113 views

assign an OU to a certain RODC

I have a RWDC(A) and two RODC(B and C).i create an OU for each branch in RWDC however the OU and it's content will be replicated to all DCs within the domain. So I want to know can we assign an OU to ...
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1answer
290 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 ...
0
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3answers
94 views

Setup replication from one local disk to another local disk ( Ubuntu )

Is there is are some way to setup local replication of the one disk to the another ( Ubuntu ) in the such way that all read operations will be involve only first disk ? Such configuration will be very ...
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0answers
78 views

Unison and Resolving Conflicts with diff3

I installed Unison because I wanted a two-way synchronization to my DRBD directory, my logic is a little bit complicated so I am stressing on the problem itself and ignoring unneeded information, ...
0
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1answer
47 views

MySQL Dual-Primary Replication

I have 2 identical up to date dedicated MySQL servers and I just configured dual-primary replication on both, everything works as expected but the problem is that I have a lot of BIN files with very ...
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1answer
45 views

Stopping both hyper-v replicas from booting

Consider the following hyper-v configuration: host1, running guest1 host2, running guest2 guest1 replicated using hyper-v replication to host2 guest2 replicated using hyper-v replication to host1 ...
0
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1answer
154 views

How to translate from statement-based to row-based replication in MySQL

I have a production system that uses MySQL statement based replication for hot failover should a master database die. Running version 5.5 Percona. I have to use statement based replication for reasons ...
2
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1answer
258 views

Postgresql WAL-E - Replication falling behind + can't catch up

Does anyone know how I can have my replications process the WAL segments faster while using WAL-E? https://github.com/wal-e/wal-e I have one master that leverages WAL-E to upload to S3, and I have 6 ...
3
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1answer
863 views

Postgres replication falling behind - master -> slave, slave, slave

I currently have 1 master server (a) and 3 replication servers (b, c, d) that come directly from the master, the archive_command I use is the following script: https://gist.github.com/Geesu/8640616 ...
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0answers
121 views

Does windows DFS (DFSR) resume a partial transfer if a WAN link is lost?

Q: Does windows DFS (DFSR) resume a partial transfer if a WAN link is lost? This seems like an obvious "yes" but, hoping someone here can provide a definitive answer. Background The environment ...
1
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1answer
194 views

Need to DUPLICATE HTTP requests to two servers

We're developing an new server to replace an old one, and want to put the side by side for before & after tests - so that we can compare the end result and find the discrepancies. The input to ...
0
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3answers
121 views

Remote access forbidden (HY000) to specific mysql client

A MySQL server is located at central.hwcharts.com; it is the master of a basic master-slave replication which replicates toward host0.hwcharts.com, located on a different physical machine which ...
7
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1answer
238 views

one of the single dc per domain DCs has suffered USN rollback

I've inherited an Active Directory forest that is laid out very badly. It has a single forest with a domain tree for each site, each with a single domain controller. No domain is a child of any ...
0
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1answer
36 views

Is it possible to replicate the _users database in CouchDB?

Is it possible to configure replication between the "_users" database on two instances of CouchDB? (currently using 1.4)
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3answers
569 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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2answers
216 views

Is it possible to do mysql replication with one server in internet and another in a intranet?

I have a server in internet that must have all data synced (dont need to be in realtime) from a server from a intranet (obviously has internet connection). Is it possible? How about sync both sides, ...
0
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3answers
620 views

Group Policy not replicating - Server 2012

I have 2 DCs. Both are Server 2012. For some reason Group Policy does not replicate between them and the client keeps getting : The processing of Group Policy failed. Windows attempted to read the ...
0
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0answers
38 views

LDAP Replication

I'm trying to use LDAP Sync Replication. I must grant rights to my account replicador. This is my ldif: dn: olcDatabase={1}hdb,cn=config replace: olcAccess olcAccess: {0}to attrs = ...
5
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2answers
209 views

Can you sync two different domains on MS DNS server?

Lets say you are running a domain X, but want your internal DNS server to handle requests for both domain X and domain Y such that if machine1.X resolves to a.b.c.d, that machine1.Y would resolve to ...
0
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2answers
1k views

No SYSVOL\NETLOGON on 2012 STD DC Server

I have 2 2012 servers. I found out there's no share of neither SYSVOL nor NETLOGON on the BDC. I'm getting many 5002: The DFS Replication service encountered an error communicating with partner ...
0
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2answers
242 views

Issues with LDAP backend in OpenLDAP

Good Morning; After working on setting up an LDAP proxy server to replicate LDAP data, I keep getting the following message: 52a0b5ca send_ldap_result: conn=-1 op=0 p=3 52a0b5ca ...
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2answers
265 views

Unable to Delete User Object in AD windows server 2008

OS - Window Server 2008 ( Domain Controller ) One User Object in AD is Creating Problem as well as i am unable to delete it manually also. Please see the below Error. In Event viewer i am getting ...
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2answers
335 views

Static master in Redis replication

I'm running replicated Redis that includes a master and just one slave. My goal is to implement a replication (using Redis sentinels) in which the slave becomes master when the master goes down, but ...
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votes
2answers
99 views

Secure communication between two hosted dedicated servers? [closed]

I'm planning to host a site on a pair of dedicated servers (both running IIS/SQL Server with SQL replication). Since the hoster only provides a public IP on each machine, how would I secure ...
3
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2answers
465 views

pg_archivecleanup not found Postgres 9.1, even though it is installed?

I have streaming replication setup on 2 Postgres 9.1 servers. Everything is ok apart from the archivecleanup. In the logs it says: sh: 1: pg_archivecleanup: not found 2013-11-19 09:17:37 GMT WARNING: ...
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0answers
234 views

Replication issue caused by bad DNS entry in _msdcs

We have 3 DCs in our domain. One of the DCs died (wouldn't boot) two weeks ago. We performed metadata cleanup to remove the old DC from AD. Then we built a new DC with a new name (we used the same IP ...
0
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1answer
89 views

replica between dc failed

I have 2 dc windows 2003: one is the master and it is called dc, the other is called fs and it is not synchronized with the master. On the fs server I stopped the service netlogon because I have had ...
3
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2answers
382 views

postgresql slave to master table replication

I currently have a few dozen sites pushing data to a central database over VPN with rsyslog. All these records are going into one table (there are roughly 20 - 30 per second being inserted per site). ...