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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Hyper-V Replica Capacity Planner stuck getting VM information

I'm trying to use the Capacity Planner for Hyper-V Replica tool to estimate requirements for a replica site. It keeps getting stuck "Getting the VM and VHD from primary site, this can take upto ...
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361 views

Openldap Mirror Mode replication failover

We have currently one master ldap server and around 400 slave servers which are partially replicated through that master.All openldap versions are same and 2.4.31 What we want is actually if master ...
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91 views

How to do Merge Replication?

I tried to do synchronization of database between servers to synchronize a database using merge replication. Simply I've added publication in server A and subscription in Server B by declaring ...
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23 views

SQL 2008 over the internet replication

Please excuse me for the (probably) stupid question, but SQL Server is not my main proficiency here... I have 2 SQL Server 2008 R2 servers, one in an AzureVM and another one in my local datacenter. ...
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39 views

MSSQL Server 2008R2 Replication stall, no latency, no errors, missing data on subscriber

This morning after performing a routine database deployment of two new tables I noticed that transactional replication had stopped for more than 3 hours. When replication resumed it picked up 3+ hours ...
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81 views

What database am I seeding from in a stretched DAG?

I have a stretched DAG across 2 sites, with 4 copies. One of the remote copies failed, and I issued a re-seed operation with the remote&working copy as a source. Knowing this, I tried to work ...
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24 views

Does having an extreamly 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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112 views

Hyper-V Replication of VMs with Symantec Endpoint Protection Manager and Symantec Mail Security

I'm hoping for some advice on replicating Hyper-V VMs which are running Symantec Endpoint Protection Manager (SEPM) and Symantec Mail Security for Microsoft Exchange (SMSMSE). The problem is the large ...
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110 views

OpenLDAP syncrepl probblem with password policies

Recently I have been working to get slapd syncrepl working using an LDAP backend (push based replication). While I have had fantastic results with syncrepl doing pull based, the push based is killing ...
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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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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 ...
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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 ...
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54 views

When CopyQueueLength is high, how do I control which server is the source?

When I have a DAG with copies spread all over the world, and the initial seeding is already complete, how does Exchange control which server is used to fulfill the outstanding CopyQueueLength logs ...
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291 views

Server 2012 DFS New Member Issue

I am trying to add a new member to our DFS topology. We have 3 DCs (VMs - VMware) running Windows server 2012, two servers are located in or Primary site and the third at our DR site. Currently the ...
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194 views

mysql cluster node lost connection shutdown

I'm testing a mysql cluster with VirtualBox using several virtual machines: Each virtual machine (2 in total) has a mysqld and ndbd node. Plus there's a vm for the ndb_mgmd to manage the cluster. I ...
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239 views

MYSQL master master replication show master status show empty record

Environment: Windows 2008 R2, MySQL 5.051b Two servers: server1: 192.168.2.8 server2: 192.168.2.9 server1 > my.ini [mysqld] server-id = 1 auto-increment-increment = 2 auto-increment-offset = 1 ...
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2k views

AD Replication Errors / KCC - Between two Domain Controllers

I'm having quite an issue that began a few days ago. Let me just lay out exactly what happened - also I've inherited this environment, please keep that in mind. 1st Domain Controller - Windows ...
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109 views

Mutli-master file system replication with acceptable read performance

I am trying to configure replicated storage over three sites - each site having a full replica of a file system, using either GlusterFS, or XtreemeFS. This replica must be readable - very fast - ...
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525 views

Viewing the “Replication” tab for a replicated folder target in the DFS “Namespaces” node in the 2008 DFS console says replication “not configured”

On a server 2008 R2 box I setup a DFS folder folder in a namespace and then manually setup it up for replication in the "replication" node of the DFS console. Now when I go to the "Replication" tab ...
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276 views

SQL Server 2005 Mirror table between databases on same server

I've been using transactional replication to mirror a table from one database to another and lately it's been a pain to keep running. My goal is to simply keep an exact copy of a table in another ...
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227 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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323 views

Ways to speed up MogileFS rebalance?

I am in the process of upgrading storage for our MogileFS cluster and am using the rebalance and device drain features to migrate data from one set of devices to another. We have about 55 TB on one ...
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200 views

PostgreSQL 1 master, multiple slave replication over slow links

I have a current use case in which remote computers query a central PostgreSQL database over a internet connection (read-only). We would like to implement a "stand-alone" system for these terminals so ...
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176 views

DFSR: Break large replication group into multiple smaller replication groups?

Is there a way to break a very large replication group into smaller replication groups while avoiding a huge backlog while it re-syncs or verifies the files in each smaller replication group? I have ...
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477 views

Offline Address Book Not Replicating Between Exchange 2010 and Exchange 2003

I have recently installed Exchange 2010 in our Exchange 2003 (SP2) environment. So far everything has been great, until we noticed creating new users does not populate the OAB for people still logging ...
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149 views

Identity Range Management problem

Recently upgraded from SQL Server 2000 to 2008. When we recreated the Merge Replication we decided to use Automatic Identity Range Management (since it is now the default in 2008). The problem is ...
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613 views

Web sync merge replication cannot connect to publisher

Before I start I would like to clarify that I am setting up a test environment to configure & test WebSync before carrying out a deployment at a client. My machines are all running SQL Server ...
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46 views

SQL - progmatically change refresh rate for ALL publishers in replication monitor

How can I change progmattically change the refresh rate of all the publishers in the repliation monitor ? Without going into each one to change it's publisher setttings. MS SQL SMS 2008 R2 AHIA, ...
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72 views

Which method of SQL Server 2005 or 2008 Replication is best for ease of field changes?

We need 15 minute warm updates from one SQL Server to another. Log Shipping looks good and appears easy to setup. We are also looking into Transactional Replication. The data only needs to copy one ...
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37 views

MSSQL server 2005 replication - article properties

When i replicate some db, my schemas, roles and user information (connected with that db) are not replicated. Moreover, if table in db is empty, replication don't create it on subscriber side. How to ...
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541 views

Setup MSSQL replication with peer to peer topology: problem setting up Conflict Detection

I'm setting up a SQL Replication strategy, using MSSQL2008 with peer-to-peer publications (2 servers, each one subscribes to the other). I followed this HOWTO from MSDN, and the setup seems to be ...
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21 views

Why does Hyper V differs in authentication methods for live-migration and replication

Hyper-V provides different authentication methods for replication and live migration (2012 R2 based). Live Migration is using CredSSP and Kerberos and replication Kerberos or PKI-based authentication. ...
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Replica for the free/busy folder is missing - Event 14029

Recently, we migrated an Exchange 2003 server to Exchange 2010. Everything is working fine, except that Event 14029 is logged very often. Event ID 14029: Couldn't find an Exchange 2010 or later ...
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29 views

Removing a replication group

I am trying to un-install DFS on Windows Server 2012, that way I can try to re-install it as my servers won't talk to each other when attempting to replicate. I keep getting an error message that says ...
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23 views

Add security/authentication to mongodb (2.6) without downtime?

We have a 3 node replica set (running 2.6.1) that's running mostly defaults. We'd like to add authentication, but do it without downtime. I'm fine with restarting the nodes one-by-one and even ...
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40 views

Why does freshly created MySQL slave keep throwing foreign key errors?

We are running Ubuntu-14.04 LTS with its stock mysql-5.5.40 and mysql-utilities-1.3.5 and we are setting up some master/slaves couples. Some of them get up without any issues just like usual, but some ...
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58 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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29 views

sql web replication ?diag errors

Trying to configure web replication, and running into a number of issues. When running replisapi.dll?Diag, I receive the following errors: CLSID_SQLReplErrors FAILED 0x80040154 replrec.dll classes ...
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50 views

Dovecot Replication(between CentOS vms) not working

I have the following configuration: 2 Virtual Machines(set up using Vagrant) with CentOS 7( master_1 - 127.0.0.1:2222 and master 2 - 127.0.0.1:2200). Each has installed postfix + dovecot 2.2.10. My ...
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56 views

Why is MSSQL 2008 saying @filter_clause is invalid and that articles do not exist when creating a new publication from a script?

I have a snapshot publication on a test server with a pull subscription set up on another test server (both SQL Server 2008 R2). This publication takes a snapshot of a few columns in a few tables for ...
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79 views

Replicated MongoDB server slower than simple shards

I tried to compare the performance of a sharded configuration against a sharded and replicated configuration. The sharded configuration consists of 8 shards each running on three different machines ...
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27 views

PostgreSQL replicate data have different time

I'm notice that when I replicate data between 2 server with different time zone, the time data in PostgreSQL is shifted when I load it to a client (in my case, a Rails console). I thought all ...
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87 views

MySQL replication across availability zones in AWS resulting in lag

I have 3 EC2 instances, each running MySQL. 2 are slaves replicating from the master. The master is located in the availability zone eu-west-1b. One of the slaves is in the same zone, and the other ...
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807 views

The Destination Server is Currently Rejecting replication Request - Error Event ID1864. Warning ID 2092

hope some one can help me with the subject mentioned error. My current set is that I have physical Win2k8R2 Box and a Virtual server with the same configuration. recently I am having replication ...
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42 views

Bucardo status does not feel if the slave is down

I am using bucardo as third party to postgresql replication between two sites. everything ok except buacrdo status <sync_name>. I have a Master-slave sync on master server. when I poweroff the ...
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25 views

SQL Server 2000: Monitor replication

starting with (Microsoft) SQL Server 2005, there are stored procedures available to monitor replication (http://www.g-productions.nl/index.php?name=sp_replmonitorhelppublication) But as we are a bit ...
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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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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 ...
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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, ...
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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 = ...