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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6
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1answer
392 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 ...
1
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2answers
368 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
vote
1answer
811 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
votes
1answer
141 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 ...
1
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2answers
528 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
4k 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
votes
1answer
357 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
174 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
votes
1answer
116 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 ...
1
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2answers
105 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 ...
1
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1answer
190 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 ...
-3
votes
1answer
329 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
118 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 ...
0
votes
1answer
49 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 ...
-1
votes
1answer
53 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
votes
1answer
313 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
votes
1answer
334 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
votes
1answer
1k 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 ...
1
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0answers
171 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
vote
1answer
387 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
votes
3answers
184 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
votes
1answer
359 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
votes
1answer
70 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
1k 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
365 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
919 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
42 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
votes
2answers
293 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
votes
2answers
2k 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
votes
2answers
331 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 ...
1
vote
2answers
355 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 ...
1
vote
2answers
416 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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2answers
116 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
votes
2answers
631 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: ...
1
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0answers
311 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
votes
1answer
95 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
votes
2answers
529 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). ...
0
votes
3answers
1k views

Sync directory across two servers using rsync (or alternative for syncing directories)

I have two VMs that should have identical files in this directory: /var/www/owncloud/data/admin/files/ I initially thought that I could use rsync with cron to copy the files every two minutes: On ...
0
votes
1answer
73 views

MySQL Replication fix after server shutdown/start

Server1 is Master Server2 is Slave Both are in our AWS testing env and we stop them once done with our work. When start again, Master rotates/creates new binary log file but slave keep looking for ...
1
vote
1answer
356 views

Changing MongoDB Oplog size

while loading data to mongodb, I keep getting "error RS102 too stale to catch up"... After research I found that my default oplog size for a 32 bit linux machine is too small. I would like it to be ...
1
vote
1answer
356 views

glusterfs mounts get unmounted when 1 of the 2 bricks goes offline

I have an odd case where 1 of the 2 replicated glusterfs bricks will go offline and take all of the client mounts down with it. As I understand it, this should not be happening. It should fail over ...
0
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0answers
20 views

Logging Apparently Not Working - Can't Set Configure Replication

I'm using a tutorial to set up a master (single) slave setup. When I run the command show master status; I get Empty set (0.00 sec). I have done a lot of research and believe that the log file I have ...
1
vote
1answer
157 views

Server 2012 DFS Replication throttling values

Is there any way, via registry edit or something, to throttle the replication throughput by values other than what is listed in the drop-down menu? I would particularly like a 10Mbps or 12Mbps option. ...
3
votes
1answer
2k views

Redis sentinel + HAProxy failover

I am looking to implement a HA redis implementation using Master-Slave redis servers. The web servers will connect to these through an HAProxy instance installed on each box. The situation is easy ...
1
vote
1answer
31 views

re-enabling a table for mysql replication

We were able to setup mysql master-slave replication with the following version on both master/slave: mysqld Ver 5.5.28-29.1-log for Linux on x86_64 (Percona Server (GPL), Release 29.1) One day, ...
0
votes
1answer
91 views

How to run a safe, responsible, fast MySQL backup

I've been tasked with assorted maintenance of a DB. I have very little experience with MySQL, so pardon any ignorance :) Two (well, four) related questions: The DB is supposed to be replicated to a ...
0
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1answer
35 views

Mysql Db replication

I have the following setup: 3 servers, B1, B2, B3. A database from B1 is being replicated to B2. B1 is master and B2 is slave. Now, I want an another database from B2 to be replicated to B3. I need ...
0
votes
1answer
213 views

Is there a way to synchronize my distributed storage infrastructure with file changes possible on each location? [closed]

I need a storage device in 3 different location. Each device will have 4TB of storage. At least 2TB should be a 'shared folder' working like Dropbox: when a user change a file in one location, the ...
8
votes
1answer
396 views

Why would a domain controller encouter a USN rollback after an unclean shutdown?

I have this Windows Server 2008 R2 domain controller running on a physical Dell server, model PowerEdge R510. There are some electrical problems around here, thus a black-out is, unfortunately, quite ...
1
vote
1answer
2k views

how to install pg_archivecleanup for postgresql 9.3 on Ubuntu

I am trying to get streaming replication working with postgresql 9.3 on Ubuntu 13.04 (Raring Ringtail). I installed postgresql on master and slave by doing: apt-get install postgresql I believe ...