Questions tagged [replication]

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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Bitlocker on 2 AD

I have BitLocker activated on users PCs and I can see BitLocker section with recovery key on PC's Properties on primary AD but on secondary AD there is not that section.
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Upon running repadmin /replsummary more than 15 servers are showing “8606” error

We are having an issue with Error ID "8606" ( Insufficient attributes were given to create an object. This object may not exist because it may have been deleted and already garbage collected)...
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Changing source of MySQL read-replica

We are running a MySQL read-replica on our local server (on-premise). That read-replica currently gets data from an AWS RDS instance. Now we want to move our database from AWS RDS to AWS AURORA. So,...
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keepalived delay before bringing ip up

Is it possible to configure a delay before bringing the virtual IP up in keepalived? Background: I have multiple Master/Master MySQL Setups. Only one Master is used at time. Keepalived is used for VIP ...
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Storage Virtualization/Replication for KVM Live Migration on 2 Nodes

at the moment I'm doing some researching on Virtualization on Linux. My target scenarion would be a 2 Node "Cluster" with replicated storage over IP. (a little Like Windows HCI) I already ...
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Object replication in Azure across subscriptions and accounts

I am trying to configure object replication for my blob storage container to another blob storage container in a different subscription that is in a different account. I can’t seem to figure out how ...
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Mysql backup- restore on multiple host in live replication

MySQL database has 1 primary host which is replicating to 2 Read replicas RR1 RR2 RR1 is master of RR11 RR12 RR13 RR2 is master of RR21 RR22 RR23 I have to make a schema change so I started schema ...
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Hyper V replication failing : System cannot find the path

I've recently upgraded my hyper v replica server to 2019. It was on 2012 r2 and i performed an in-place upgrade. On three of my biggest VM's i'm failing to enable replication again. I have ...
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How to setup a master-slave connection with an invisible master? [closed]

I know, the question may sound weird at first but let me explain some things, I'm sure you will understand my problem after that: I have a raspberry pi recording all data from my weather station at ...
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Prevention of replication in Azure blob storage

I have a ton of Azure storage accounts. I would like to prevent any of my users from replicating data to a storage account outside the subscription e.g. they can replicate to another region for the ...
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Replica is not syncing with Master in Redis Cluster

created Redis cluster using 6 nodes, 3 masters and 1 replica is working fine but 2 replicas are not syncing, when i checked the log i got following error - MASTER <-> REPLICA sync started Non ...
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VMware to Azure Site Recovery; disable replication failed:

I have a VM that I am replicating to Azure from a VMWare host. I needed to change the hard drive type to SSD Premium, and so started a disable replication, so that I could re-replicate. The disable ...
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Replication Working in AD

I recently studied the concept of replication in Active directory. My doubt is, which one initiates the replication? For example, I had DC-1 and DC-2 server. I update the user object's name attribute ...
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How can I transfer a dedicated bare metal server into a VM?

I have the following problem: We have a dedicated (bare metal) hardware server (Debian 10) on which we have no direct physical access. Now I want to transfer all data and applications that are on this ...
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How does one go about using master to master replication along with something like rsync to keep two identical copies of an application identical?

I have servers that do things for me at home, for instance they keep copies of my bookmarks in the way that del.icio.us used to (nextCloud) and keep copies of my code (gitea). Initially I thought that ...
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Error while replicating to RODC

Good day! Faced such a problem. There are 3 sites in the domain, each with one domain controller. 2 RW controllers and one read only. All DCs - server 2016. Domain and forest level - 2012R2. On a read ...
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Numbers of bricks is not a multiple of replica count - glusterfs

I have 10 servers and want to use all as storage so tried to create volume with following command but its throwing error gluster volume create gv0 replica 3 server1:/data/brick1/gv0 server2:/data/...
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Mixing Galera and MariaDB/MySQL replication

reading about it online, it appears we can use both Galera replication and native MariaDB/MySQL replication together. Can anyone confirm that this is correct? I'm thinking of a scenario where Data ...
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How Can I Remove a MariaDB Galera Cluster

I have made MariaDB-Galera replication with 3 ubuntu servers, but somethimes I need to delete the created cluster, so I can create a new Galera replication cluster. How can I do that? Or how can I ...
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What are the steps to re-enable replication if replica-server lost the replicated vms?

We just lost our logical drive for a few replicated VMs and couldn't restore them. Now we ran into the issue that we can't re-enable the replication process on the primary Hyper-V Host. We get the ...
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OpenLDAP syncrepl does not recover after network interruption

We have an issue we have discovered where syncrepl does not recover after a network interruption. Environment: Centos 7 replicas OpenLDAP 2.4.44(-21.el7_6) Loglevel set to comm sync (produces nothing ...
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Problems with MySQL replication. Why binlogs grows so fast?

I have 2 MySQL servers: Master server: mysql version 5.7.14 Slave server: mysql version 5.7.14 in Docker container (from official docker hub). GTID-replication. I have two problems: Binlogs growth ...
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MariaDB/MySQL DB tracking another database

If I want to have two servers with one active and one hot standby (and each has it's own database on them), how do I get the secondary to track the primary and be quick/easy to deploy if the main ...
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Replicating storage efficiently

I want to replicate in the region of 10Tb of data (lots of smallish files, low level of churn) across a WAN with minimal impact on the available infrastructure. While I could simply use rsync, this ...
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Hyper-V Replication without Domain

I have a hyper-V host in a different DC that I want TWO source servers to replicate to. I have followed guides such as https://michaelfirsov.wordpress.com/hyper-v-replica-in-windows-server-2016-...
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188 views

ActiveMQ Artemis: Message draining without HA policy “scale-down”

In an ActiveMQ Artemis HA cluster (v2.13.0), the HA policy’s <scale-down/> property causes the backup broker to move all pending messages to one of the remaining live instances if the master ...
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mysql master slave replication wihtout positioning

I have a large database which i want to replicate to my slave server. I have configured master and slave successfully. My problem is now to dump the master database which is very very large in size. ...
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Impossibile to replicate MongoDB

we are trying to move a MongoDB from an AWS VM to an on premise machine. The MongoDB data directory size is over 2.5TB. The idea is to put the on premise VM in replica with the AWS VM. The problem is ...
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How to use real time file replication on linux

So, we are in 2020 and many of the answers from similair questions might be outdated. What is the best way for real time file syncronization between linux servers. It's serveral million small json ...
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DC's storming me with issues

Hi I have 2 DC's (server 2019) (1 physical, 1 Virtual) was working good, but last month I did notice some issues like I couldn't connect from dc2 to dc1. so I opened Event Viewer to find muliple ...
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BIND9 replication puts wrong content into some slave zone files

Trying to implement primary/secondary (master/slave) replication on Bind 9.11.4, Amazon Linux 2. Also fails with Bind 9.8. Have 4 views. For zones that cross multiple views and use different zone ...
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Dfsr - replicatedFolderinfo state 3 (in recovery) progression

I have a DFS Namespace currently in auto-recovery due to an unexpected server crash. There's about 600GB of data and it's consisting of small files for the most part. It's been in auto-recovery for ...
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8464 replication Error in Active directory

Hi i have two DC replicated servers . after an unsuccessful MS Exchange installation my Replication faced 8464 Error. by Microsoft support website https://support.microsoft.com/en-us/help/3001248/...
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how to cleanup domaindnszones?

We've a multiple domains forest xyz.com in which we have domains such as abc.xyz.com, def.xyz.com, etc. Each domain are DNS AD integrated and were domain replicated at that time. A few years ago, one ...
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How to move ADUser to child domain while preserving original Object for password replication purposes

So, we have one forest with one domain currently, which is working pretty good. Now we got a new remote office for 5 users. They should get their own Domain Controller and Domain. Our original Domain ...
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“ldap_modify: Server is unwilling to perform (53) additional info: shadow context; no update referral” ERROR in my ldap server

Iam trying to do multi master replication on my LDAP server on RHEL 7 but I am getting below error while running command: #ldapmodify -Y EXTERNAL -H ldapi:/// -f ldap01.ldif "ldap_modify: Server is ...
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Sybase - SAP ASE - replication server: routing declaration

I'm trying to declare a routing in SAP Replication Server. I have: A server (let's call it S1) with ASE and RS server (let's call it RS1). A server (let's call it S2) with ASE and RS server (let's ...
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SQL Server 2014 not replicating NEW non-clustered indexes

I have an instance of SQL Server 2014 running replication. I have selected the option to copy nonclustered indexes on all tables: When this was first enabled, all existing nonclustered indexes were ...
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622 views

AWS RDS Postgres cross-account replication

Is it possible to set up cross-account replication with the AWS RDS Postgres database? The goal is to have a read-only replica in a separate AWS account. I know it's somewhat possible to accomplish ...
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How to migrate a mysql master/master replication system to a new system

I am using a system with two machines running mysql in master/master replication. I would like to move the systems to new machines who are also doing master/master replication. Is it possible to do ...
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293 views

Backup & Restore OpenLDAP 2.4 with multi-master replication enabled

We have an openLDAP cluster running with two Master(producers) and one consumer. I read the below guides and got a good enough idea about using slapcat/ldapsearch with slapadd/ldapadd to backup & ...
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Proxmox: How to replicate runnable VMs

I am quite new to Proxmox 6.0 and just started to learn clustering. I am running a test environment with an HP Proliant and an IBM rackserver (both have just one fat partition and the dataformat is ...
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Hyper-V merge checkpoint causes disk inaccessibility

We currently have 2 Hyper-V host (Windows Server 2016). One of them contains all of the running machines, while the other contains the same machines, but as powered off replicas. To keep them in ...
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1answer
59 views

Clean DB from Slony objects

I have old DB server Postgres 8.4 and Slony (slave, to which only a table replicates) I'm trying to migrate to new server with Postgres 9.x without slony and slony deamon, I would later setup other ...
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How to create a database read replica on AWS Lightsail

I have an existing MySQL database running on AWS Lightsail, I want to create a read replica for that one, how can I do it?
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How to replace ZFS pool root with a snapshot after replication

I'm replacing some failing disks with new ones, and rather than replace them one by one I have created a new ZFS pool on the new disks, and copied the old pool over to the new one. I did this at the ...
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AD replication stops

i have a domain controller located in a distance site which has a replication problem. Replication stops after a small period of time (about half an hour). The only way to resolve it is to change the ...
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Replication from Clients to Hyperv cluster offsite

I want to replicate virtual machines that are at client sites to our cluster. Our cluster is 3 hyper-v's clustered together with san as storage. The cluster is in the domain. The replica broker is ...
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OPENLDAP Master/Slave replication stopped

I configured my system in this way: Master OpenLDAP 10.100.1.6 and slave OpenLDAP 10.100.1.7 I used this guide: https://www.itzgeek.com/how-tos/linux/configure-openldap-master-slave-replication.html ...
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Will Mariadb replication master-slave setup work for Joomla/Virtuemart?

I have a Joomla/Virtuemart installation and i want to create a master-slave replication with 1 slave The Slave will be used as a failover in case there is something wrong with the master. The ...

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