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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551 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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2answers
5k views

Is it a good idea to store Docker volumes in glusterfs?

I am currently thinking about migrating some of our servers and apps to a coreos enviroment. One of the problems I see here is the management of persistent data as coreos does not handle Docker ...
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1answer
72 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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1answer
774 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
75 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
125 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
36 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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112 views

Solution for file data backup, versioning and replication

We have a growing set of data files (.wav files, image files etc) which are data, i.e not part of the application code - uploaded and modified by users. The number of files is in the 1000s and the ...
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1answer
73 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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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
503 views

AD Replica DC Promotion Stall

I recently inherited infrastructure duties for a small startup I am working with. My traditional role has been development, so bear with me... I was hoping to start off on the right foot, and get ...
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205 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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1answer
59 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
3k 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 ...
0
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1answer
85 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
97 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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2answers
361 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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42 views

hyper v replication destination on

I want to test out 2012R2's Hyper V replication feature but I don't want to have to fork out for a new dedicated Hyper V host until I'm sure that the built in replication is fit for my needs. We have ...
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1answer
1k views

Trying Non-Authoritative restore but CN=DFSR-LocalSettings is missing

I have a single Domain with one Windows 2011 SBS Domain Controller and a newly joined and DC promoted Windows Server 2012 Standard. Forest and Domain functional levels are both Windows Server 2003. ...
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0answers
123 views

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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1answer
1k views

Read Only Domain Controller not replicating after writable domain controller outage

I have a RO domain controller that replicates with a writable DC which is at another site. The other week the writable DC was out for about 2 days because of maintenance at that site. After this ...
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1answer
122 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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1answer
117 views

MySQL replication shuts down after rotate of binlog

I have following issue. I had successfull setup of master-replica(row-based). It has been running for 2-3 hours. After bin-log was rotated -> mysql-bin.index file got corrupted on master. Here is ...
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1answer
804 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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133 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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0answers
56 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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1answer
75 views

Missing DomainControllers in Active Directory Object

We are setting up a new network environment that will have two domain controllers and ran into an issue with Windows not recognizing the existing domain controllers (DC-01 and DC-02) as Domain ...
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1answer
341 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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1answer
489 views

My Active Directory replication settings don't look right

I have recently added a new site to my Active Directory domain (single forest, single domain). I have mapped subnets to the sites, and added one DC to the new site with our remaining 4 on the original ...
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1answer
205 views

Replication Issues in Active Directory - Computer Objects showing up in multiple OUs

There seems to be replication issues in the domain , but there is a strange occurrence. Some computer objects are moved to a different OU ; after a day when i searched for those computer objects in ...
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0answers
159 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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1answer
189 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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1answer
149 views

Mysql - best setup for 4 replication databases and another standalone

we would like to merge on one server 2 mysql instances coming from 2 different server : 4 databases on the first instance, which is a replication slave, which are replicated from a master 1 database ...
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1answer
484 views

mongodb keep looping while trying to sync data

I'm converting my my standalone mongodb into a replica set. I've added one more member (and I want to add two more members later, and to shutdown the primary server). My primary mongodb is running ...
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1answer
722 views

Communication errors while trying to replicate mongodb

I'm trying to replicate my mongodb database, I've crated 2 VM on my windows azure account. both of them are Ubuntu 14.04. I've opened 27017 port on both of them, and installed mongodb latest version. ...
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1answer
70 views

how to use mysql database replication to backup a single database

Suppose I want to replicate a single database in mysql on my slave, the master might be creating and writing to multiple databases. is this possoible? or does the replication slave have to replicate ...
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2answers
410 views

How to clone a linux live server with no stopping it?

This is my current situation:+ A linux server containing several web applications that cannot be stopped, with no physical access to it, only via ssh. This is what I need: I need to replicate it to a ...
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1answer
2k views

MySQL : How to lock all write in all databases? [closed]

I need to block all writes (insert , update, delete) on all databases. How can I do that ? Put all database in Read Only for a period time.
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1answer
46 views

Can bad DNS replication cause a user to loose connectivity to a shared drive [closed]

We have multiple users that loose connections to shared drives on a particular server. I am able to ping the server hosting the files but can not see the host, or directories. Also its not 1 user, its ...
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217 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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1answer
29 views

Hw much gets stored for each GB after replication and backups [closed]

Does Google Drive, Dropbox, or other file storage services generally use Backups or do they rely solely on replication? How many copies do they replicate?
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1answer
2k views

GlusterFS - Replication Over Odd Numbers Of Nodes

I tried to create a replicated volume across my 3-node cluster with the following command: sudo gluster volume create \ replicatedStorage \ replica 2 \ transport tcp \ gluster1.mydomain.com:/data \ ...
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0answers
67 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 ...
0
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1answer
158 views

How to recover a degraded MongoDB sharded cluster?

I've had problems with a MongoDB replica set of my sharded cluster. The current status of the nodes is: node1: primary (but apparently vetoed by node3 that needs to sync) node2: rollback (it was the ...
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0answers
201 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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0answers
3k 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 ...
0
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0answers
34 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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1answer
127 views

Do both Active Directory servers need to see each other for replication?

I'm trying to set up a remote DC for DR, and I've chosen to put it in AWS in a VPC with our other servers being backed up. I can restrict that with security groups to only accept traffic from the main ...
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1answer
1k views

SAN Synchronous Replication and SQL Server - Is RPO of 0 possible?

I am working on a solution that is using SQL Server 2012 SP2, but without the use of AlwaysOn availability groups. This is due to cross-database transactions, that does not work for this scenario. ...
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1answer
101 views

MySql Replication Stored to Central Database

Hi I maybe looking with the wrong terminology. But i have a situation where i need to replicate / copy data to a centralized database. Shop1.dbshop - > Central.dbshop1 Shop2.dbshop - > ...